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R

NINGBO DAVID

SERVICE MANUAL

YP-2000 INFANT INCUBATOR

NINGBO DAVID MEDICAL DEVICE CO., LTD. ADD: NO.158 DAQING ROAD, SHIPU, NINGBO, ZHEJIANG PROVINCE, CHINA POST CODE: 315731

FAX: 0086-574-65962111

MARKETING CENTER: NO. 100, JINGHUA ROAD, HI-TECH INDUSTRIAL DEVELOPMENT ZONE, NINGBO, CHINA POST CODE: 315000 TEL: 0086-574-87800008, 87800009 E-MAIL: [email protected]

FAX: 0086-574-87801111 [email protected]

WEBSITE: http://www.nbdavid.com EUROPEAN REPRESENTATIVE: SHANGHAI INTERNATIONAL HOLDING CORP. GMBH (EUROPE) ADD: EIFFESTRASSE 80, 20537 HAMBURG, GERMANY TEL: 0049-40-2513175

FAX: 0049-40-255726 EDITION/REVISION A/0

Guidance and manufacture’s declaration – electromagnetic emissionsfor all EQUIPMENT and SYSTEMS

Guidance and manufacture’s declaration – electromagnetic emission The YP-2000 Infant Incubator is intended for use in the electromagnetic environment specified below. The customer of the user of the YP-2000 Infant Incubator should assure that it is used in such and environment.

Emission test

Compliance

Electromagnetic environment – guidance

RF emissions

The YP-2000 Infant Incubator uses RF energy

CISPR 11

only for its internal function. Therefore, its RF Group 1

emissions are very low and are not likely to cause any interference in nearby electronic equipment.

RF emission CISPR 11 Harmonic emissions IEC 61000-3-2

Class A Class A

all

establishments,

other

than

domestic

establishments and those directly connected to the public low-voltage power supply network that supplies buildings used for domestic purposes.

Voltage fluctuations/ flicker emissions

The YP-2000 Infant Incubator is suitable for use in

Complies

IEC 61000-3-3

Page 1of 4

Guidance and manufacture’s declaration – electromagnetic immunity – for all EQUIPMENT and SYSTEMS

Guidance and manufacture’s declaration – electromagnetic immunity The YP-2000 Infant Incubator is intended for use in the electromagnetic environment specified below. The customer or the user of YP-2000 Infant Incubator should assure that it is used in such an environment.

Immunity test

IEC 60601 test level

Compliance level

Electromagnetic environment - guidance

Electrostatic

±6 kV contact

±6 kV contact

Floors should be wood,

discharge (ESD)

±8 kV air

±8 kV air

concrete or ceramic tile. If

IEC 61000-4-2

floor are covered with synthetic

material,

the

relative humidity should be at least 30%. Electrical fast

±2 kV for power supply

±2kV for power

Mains

transient/burst

lines

supply lines

should be that of a typical

IEC 61000-4-4

power

commercial

quality

or

hospital

power

quality

environment. Surge

±1 kV differential mode

±1 kV differential

Mains

IEC 61000-4-5

±2 kV common mode

mode

should be that of a typical

±2 kV common mode

commercial

or

hospital

power

quality

environment. Voltage dips, short

95% dip in UT)

should be that of a typical

for 0.5 cycle

for 0.5 cycle

commercial

power supply input

or

hospital

environment. If the user of

lines

40% UT

40% UT

the

IEC 61000-4-11

(60% dip in UT)

(60% dip in UT)

Incubator

requires

for 5 cycles

for 5 cycles

continued

operation

YP-2000

during

power

mains

70% UT

70% UT

interruptions,

(30% dip in UT)

(30% dip in UT)

recommended

for 25 cycles

for 25 cycles

YP-2000 Infant Incubator

95% dip in UT)

supply or a battery.

for 5 sec

for 5 sec

be

NOTE

Infant

UT is the a.c. mains voltage prior to application of the test level.

Page 2 of 4

powered

it

is

that from

the an

power

Guidance and manufacture’s declaration – electromagnetic immunity – for EQUIPMENT and SYSTEMS that are LIFE-SUPPORTING

Guidance and manufacture’s declaration – electromagnetic immunity The YP-2000 Infant Incubator is intended for use in the electromagnetic environment specified below. The customer or the user of YP-2000 Infant Incubator should assure that it is used in such an environment.

Immunity test

IEC 60601 test level

Compliance level

Electromagnetic environment - guidance Portable and mobile RF communications equipment should be used no closer to any part of the YP-2000 Infant Incubator, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter. Recommended separation distance

Conducted RF

3Vrms

IEC 61000-4-6

150 kHz to 80 MHz

3 Vrms

outside ISM bands a

10 Vrms

⎡ 3 .5 ⎤ d =⎢ ⎥ P ⎣ V1 ⎦

10 Vrms

150 kHz to 80 MHz in ISM bands

Radiated RF

10 V/m

IEC 61000-4-3

80 MHz to 2.5 GHz

10 V/m 80 MHz to 800 MHz

800 MHz to 2.5 GHz Where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer and d is the recommended separation distance in metres (m). b

Field strengths from fixed RF transmitters, as c determined by an electromagnetic site survey, should be less than the compliance level in each frequency range.d Interference may occur in the vicinity of equipment marked with the following symbol:

NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies. NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people. a The ISM(industrial, scientific and medical) bands between 150kHz and 80MHz are 6.765MHz to 6.795MHz; 13.553 MHz to 14.567 MHz; 26.957 MHz to 27.283 MHz; and 40.66 MHz to 40.70 MHz. b The compliance levels in the ISM frequency bands between 150kHz and 80MHz and in the frequency range 80 MHz to 2.5GHz are intended to decrease the likelihood that mobile/portable communications equipment could cause interference if it is inadvertently brought into patient areas. For this reason, an additional factor of 10/3 is used in calculating the recommended separation distance for transmitters in these frequency ranges. c Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the YP-2000 Infant Incubator is used exceeds the applicable RF compliance level above, the YP-2000 Infant Incubator should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the YP-2000 Infant Incubator . d Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 10 V/m.

Page 3 of 4

Recommended separation distances between portable and mobile RF communications equipment and the EQUIPMENT or SYSTEM – for EQUIPMENT or SYSTEM that are LIFE-SUPPORTING Recommended separation distances between portable and mobile RF communications equipment and the YP-2000 Infant Incubator The YP-2000 Infant Incubator is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the YP-2000 Infant Incubator can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the YP-2000 Infant Incubator as recommended below, according to the maximum output power of the communications equipment. Separation distance according to frequency of transmitter (m)

Rated maximum

150 kHz to 80 MHz

150 kHz to 80 MHz

80 MHz to 800

output power

outside ISM bands

in ISM bands

MHz

of transmitter (W)

⎡ 3 .5 ⎤ d =⎢ ⎥ P ⎣ V1 ⎦

0.01

0.1167

0.12

0.12

0.23

0.1

0.3689

0.3795

0.3795

0.7273

1

1.1667

1.2

1.2

2.3

10

3.6893

3.7947

3.7947

7.2732

100

11.6667

12

12

23

800 MHz to 2.5 GHz

For transmitters rated at a maximum output power not listed above, the recommended separation distance d in metres (m) can be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer. NOTE 1

At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.

NOTE 2 The ISM(industrial, scientific and medical) bands between 150kHz and 80MHz are 6.765MHz to 6.795MHz; 13.553 MHz to 14.567 MHz; 26.957 MHz to 27.283 MHz; and 40.66 MHz to 40.70 MHz. NoTE 3 An additional factor of 10/3 is used in calculating the recommended separation distance for transmitters in the ISM frequency bands between 150kHz and 80 MHz and in the frequency range 80 MHz to 2.5 GHz to decrease the likelihood that mobile/portable communications equipment could couse interference if it is inadvertently brought into patient areas. NOTE 4 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people.

Page 4 of 4

SERVICE MANUAL FOR INFANT INCUBATOR

WARRANTY The product being described in this manual is warranted against defects in materials or workmanship for one year from the date of shipment, with the following exceptions. 1. All consumable and disposable products are guaranteed to be free from defects upon shipment only. 2. Calibrations are considered normal maintenance and are not included in the 1-year warranty. During the warranty period any defective parts other than those listed above will be replaced at no charge to the customer. This warranty is rendered void and our company cannot be held liable for conditions resultant therefrom if: 1. Damage to the unit is incurred as a result of mishandling. 2. The customer fails to maintain the unit in a proper manner. 3. The customer uses any parts, accessories, or fittings not specified or sold by our company. 4. Sale or service is performed by the non-certified service/dealer agency. This warranty is in lieu of all other warranties, expressed or implied, and our company shall in no event be liable for incidental or consequential damages including loss of use, property damage, or personal injury resulting from breach of warranty. The Accreditation Manual for Hospitals requires each piece of equipment to be tested prior to initial use and at least every 12 months. To comply with this standard, we recommend that you participate in our accreditation Testing compliance Program during the warranty period. This service can be performed through our company and authorized dealers.

SERVICE For optimal performance, product service should be performed only by qualified service personnel. Technical Services representatives can be reached for fixations and are dispatched for required maintenance by calling 0086-574-87800008, 87800009. Customers outside China should contact their local factory-authorized distributor for service.

COMPLEMENTARY NOTICE Since our factory, conducts a continuous product improvement program, circuit and component improvements are sometimes incorporated into equipment before they can be incorporated into the printed manuals. This manual contains proprietary information, repairs and authorized modifications should be performed only by qualified service personnel to maintain your warranty and to avoid creating safety hazards. We cannot assume responsibility for any conditions affecting the proper operation of this equipment which may result from unauthorized repair modification. Therefore, some parts used in your equipment may be different than those which appear in the parts list of this manual. This sometimes occurs due to difficulty in parts procurement, but does not alter the function of the equipment The device, accessories and the packaging have to be disposed of waste correctly at the end of the usage. Please follow Local Ordinances or Regulations for disposal. i I5

SERVICE MANUAL FOR INFANT INCUBATOR

TABLE OF DEFINITIONS AND SYMBOLS TECHNICAL DEFINITIONS SKIN TEMPERATURE SENSOR: A sensing device including the link with the equipment intended to measure the infant’s skin temperature. INCUBATOR TEMPERATURE: Air temperature at a point 10cm above and centered over the mattress surface. CONTROL TEMPERATURE: The temperature set at the temperature control. AVERAGE INCUBATOR TEMPERATURE. The average of the maximum and minimum Incubator temperatures achieved during Temperature Condition. STEADY TEMPERATURE CONDITION: A condition which is reached when the temperature does not vary by more than 1℃ over a period of 1 hour. TEMPERATURE ALARM CHECKOUT STATE: The difference between real temperature and control temperature is within ±0.5℃ and such state lasts for over 10minutes. The equipment must stay in such state when check up the alarm about temperature TEMPERATURE UNIFORMITY: The amount by which the average temperature at each of four points 10 cm above the mattress surface differs from the Average incubator Temperature at steady Temperature Condition. The four points are the centers of four quadrants formed by lines that divide the width and length of the mattress surface. TEMPERATURE VARIABILITY: The variability of the Incubator Temperature that will be observed over a one hour period after Incubator Temperature Equilibrium has been reached. TEMPERATURE RISING TIME: The time required for the Incubator Temperature to rise 11℃, when the Air Control Temperature is at least 12℃ above ambient. STEADY HUMIDITY CONDITION: A condition that the disparity between the indicated humidity value and control value is less than ±5%RH, and maintains over 2 min.

NOTE, IMPORTANT, CAUTION AND WARNING NOTE: A note is inserted in text to point out procedures or conditions, which may otherwise be misinterpreted or overlooked. A note may also be used to clarify apparently contradictory or confusing situations. IMPORTANT: Similar to a Note but be used where greater emphasis is required. CAUTION: A caution is inserted in text to call attention of a procedure which, It not followed exactly, can lead to damage or destruction of the equipment. WARNING: A warning is inserted in text to call attention to dangerous or hazardous conditions inherent to the operation, cleaning, and maintenance of the equipment which may result in personal Injury or death of the operator or patient. ii I5

SERVICE MANUAL FOR INFANT INCUBATOR

SYMBOLS Attention; Consult

CLASS I

accompanying documents

Class I Equipment

Type BF Applied Part

Main power on

Main power off

On (only for a part of equipment)

Off (only for a part of equipment)

User-Defined Key

Set Key

Set Temperature Up Key

Set Temperature Down Key

Silence / Reset Key

RS232

Socket for skin temperature 1

Socket for skin temperature 2

High Water Level

Low Water Level Mattress Tilt Direction

Caution, scald Low

The VHA Pedestal Rising Key 220-230V~ 50Hz

AC Power 220-230V, 50Hz

T 1AL//250V Fuse Type T 1AL/250V 220-230V~ 50Hz MAX:3A

SN

High

The VHA Pedestal Falling Key F 6.3AH/250V Fuse Type F 6.3AH/250V T 160mAL//250V Fuse Type T 160mAL/250V

Assistant net power outlet, MAX： 3A T 800mAL/250V Fuse Type T 800mAL/250V Serial Number

Date Of Manufacture

Weight Limit

CE Marking

iii I5

RS232 Connector

SERVICE MANUAL FOR INFANT INCUBATOR

SEASONAL SAFETY CHECK 1. Please clean the plug of power cord at least once a year. Too much dust on plug may cause the fire. 2. The following safety checks should be performed at least every 12 months by a qualified person who has adequate training, knowledge, and practical experience to perform these tests. The data should be recorded in an equipment log. If the device is not functioning properly or fails any of the above tests, the device has to be repaired. 1 . Inspect the equipment and accessories for mechanical and functional damage. ○ 2 . Inspect the safety relevant labels for legibility. ○ 3 . Inspect the fuse to verify compliance with rated current and breaking characteristics. ○ 4 . Verify that the device functions properly as described in the instructions for use. ○ 5 . Test the protection earth resistance according IEC 60601-1:1988 + A1:1991 + A2:1995: ○

Limit 0.1Ω. 6 . Test the earth leakage current according IEC 60601-1:1988 + A1:1991 + A2:1995: Limit: ○

NC 500μA, SFC: 1000μA. 7 . Test the enclosure leakage current according to IEC 60601-1:1988 + A1:1991 + A2:1995: ○

Limit: NC 100μA, SFC: 500μA. 8 . Test the patient leakage current according IEC 60601-1:1988 + A1:1991 + A2:1995: Limit: ○

for a.c.: 100μA (BF), for d.c.: 10μA (BF). 9 . Test the patient leakage current under single fault condition with mains voltage on the ○

applied part according IEC 60601-1:1988 + A1:1991 + A2:1995: Limit: for a.c.:500μA (BF), for d.c.: 50μA (BF). 10 . According to the test methods of IEC 60601-1:1988 + A1:1991 + A2:1995, the patient ○

leakage current (net voltage should be added on the applied part) of the testing device must less than 5000μA. 11 . Test the patient auxiliary leakage current according IEC 60601-1:1988 + A1:1991+ ○

A2:1995: Limit: NC for a.c.: 100μA (BF), for d.c.: 10μA (BF).SFC 500μA (BF), for d.c.: 50μA (BF).

iv I5

SERVICE MANUAL FOR INFANT INCUBATOR

TABLE OF CONTENTS SECTION

PAGE

1. GENERAL INFORMATION…………………………………………………………………………1-1 1.1 INTRODUCTION……………………………………………………………………………………1-1 1.2 DESCRIPTION………………………………………………………………………………………1-1 1.3 ACCESSORIES……………………………………………………………………………………1-1 2. INSTALLATION………………………………………………………………………………………2-1 2.1 UNPACKING…………………………………………………………………………………………2-1 2.2 ASSEMBLING ………………………………………………………………………………………2-1 2.3 OPERATION CHECKOUT PROCEDURE………………………………………………………2-6 3．TECHNICAL INFORMATION………………………………………………………………………3-1 3.1 SPECIFICATION……………………………………………………………………………………3-1 3.2 WORKING PRINCIPLE……………………………………………………………………………3-4 3.3 ALARM ………………………………………………………………………………………………3-7 4. CLEANING AND MAINTENANCE………………………………………………………………4-1 4.1 GENERAL……………………………………………………………………………………………4-1 4.2 CLEANING…………………………………………………………………………………………4-1 4.3 STERILIZATION……………………………………………………………………………………4-8 4.4 MAINTENANCE……………………………………………………………………………………4-8 5．SERVICE……………………………………………………………………………………5-1 5.1 GENERAL…………………………………………………………………………………5-1 5.2 HUMIDITY SYSTEM………………………………………………………………………5-1 5.3 OXYGEN SYSTEM…………………………………………………………………………………5-2 5.4 REPLACEMENT OF ELEMENT……………………………………………………………5-3 5.5 SYSTEM SETTING PROCEDURES…………………………………………………………5-6 5.6 PROCEDURE OF TROUBLE-SHOOTING……………………………………………………5-12 6. SPARE PARTS LIST AND ITS NO..………………………………………………………………6-1 6.1 GENERAL……………………………………………………………………………………………6-1 7. DIAGRAMS……………………………………………………………………………………………7-1 7.1 GENERAL……………………………………………………………………………………………7-1

v I5

SERVICE MANUAL FOR INFANT INCUBATOR

SECTION 1 GENERAL INFORMATION 1.1 INTRODUCTION This manual provides instructions for installation, maintenance and repair for the Infant Incubators. This manual is intended to use as reference only by trained, qualified service personnel. Instructions for the operator of the equipment are provided in a separate operator’s manual.

1.2 DESCRIPTION YP-2000 Infant Incubator includes oxygen concentration system, humidity control system, Vertical Height Adjustment cabinet (VHA cabinet), baby scale (for optional function) and monitoring shelf (for optional function). If you don’t purchase the optional part, please omit it.

1.3 ACCESSORIES The following diagram shows the main parts of the Infant Incubator.

I.V. Pole

Monitoring shelf Baby compartment

Shelf

Base

Controller

Mobile Cabinet

I5

1-1

SERVICE MANUAL FOR INFANT INCUBATOR

DESCRIPTION OF PART

EXPLANATION

I.V. pole

A kind of bearing part, which is used for hanging the infusion bottle. Max. Load: 2Kg

Controller

The core part with two kinds of temperature control modes: air mode, baby mode, moreover, it also have the function of weighing, humidity control and oxygen concentration controlling system which are used for autocontrol the heat output and the humidity and oxygen concentration in the incubator. The detail operation please refer to the user's manual.

Monitoring shelf

A kind of bearing part, which is used for putting Infant monitor system. Max. Load: 8Kg

Shelf

A kind of bearing part, which is used for putting some small objects. Max. Load: 3.5Kg

Baby compartment

It is used for placing the infant inside, including the Double-wall Acrylic hood, bassinet, and so on. The bassinet can be tilted at the request of clinical needs. The baby scale is optional part, and the Max. Load of bassinet is 10 Kg. Size of mattress: 740mm×376mm

Base

An important part of Infant Incubator, which mainly composed of the oxygen device, humidity chamber, air filter, and so on.

Mobile Cabinet

A part which can support the main body of Infant Incubator. Cabinets are supplied in VHA stand which including large and small storage compartment. Big storage compartment Max. load: 4 Kg. Small storage compartment Max. load: 2 Kg. Storage cover Max. load: 1 Kg.

1-2 I5

SERVICE MANUAL FOR INFANT INCUBATOR

SECTION 2 INSTALLATION 2.1 UNPACKING Generally, the Infant Incubator is usually packed to two cartons: main body and Vertical Height Adjustment cabinet (VHA cabinet). When taking out the equipment from the cartons, take care not to damage the spare parts of the Infant Incubator.

2.2 ASSEMBLING At least two professionals are required to do the installation of the Infant Incubator with spanners. A. Install the main body onto the Vertical Height Adjustment cabinet Mount the main body on the VHA Pedestal using the four hexangular bolts, spring washer, flat washer by the equipment provided figured as 2.1.

ENLARGED ILLUSTRATION I

Flat Washer M6 Spring Washer M6 Hexangular Bolt M6X45 I

TEMPERATURE CONTROLLER POWER PLUG

2-1 I5

SERVICE MANUAL FOR INFANT INCUBATOR

2 1

Insert the temperature controller power WHEEL UNLOCKED

WHEEL LOCKED

Cord to the socket.

NOTE: The Pedestal front locking casters must be facing down to be locked indicated by arrow 1. The Pedestal front locking casters must be facing down to be unlocked indicated by arrow 2. FIGURE 2.1 IMPORTANT: The main body can be installed on the VHA Pedestal only if the power cord of temperature controller from the VHA Pedestal is located on the same side as the temperature controller. WARNING: 1. The incubator must be attached to the VHA Pedestal using the bolts provided. Failure to do so could result in the incubator separating from the VHA Pedestal if the VHA Pedestal is tilted, particularly when the hood is opened. 2. To prevent the incubator from sliding when parked on an incline, the front locking caster for the VHA Pedestal must be facing down the incline and locked. B. Install the I.V. Pole

Seat for the monitor shelf

Step 1: Fix the seat for monitoring shelf on the right and left sides of the main body with the inner hexagon bolts.

2-2 I5

SERVICE MANUAL FOR INFANT INCUBATOR

I.V. Pole Support pole for I.V. Pole

Clamp seat

Support pole for I.V. Pole

Step 2: Fix the I.V. Pole on the Seat for the monitor

Step 3: Adjust the proper height of I.V.

shelf with latch seat and the inner hexagon

Pole, and tighten it as the arrow

bolts as the arrow indicates.

indicates. FIGURE 2.2

C. Install Shelf As figure 2.3 indicates, insert the fixed seat to the infusion rod. Ensure the top of fixed seat is uniform with the position line on the infusion rod as enlarged figure A show. Then tighten the hexagon bolts. ENLARGED ILLUSTRATION A Line for Tray Position Shelf

A Fix Seat 1

Inner Hexagon Bolt

NOTE: The side with note label of shelf must be installed in front of the incubator. FIGURE 2.3 D. Install Monitoring Shelf See figure 2.4, the fixing method of support pole for I.V. pole, fix the support pole for shelf on the seat for monitoring. Insert the one terminal of tray with hole into the hole of support pole of monitor, and fasten it with inner hexagon bolt tightly. 2-3 I5

SERVICE MANUAL FOR INFANT INCUBATOR

Monitoring Shelf The support pole for monitoring shelf The inner hexagon bolts M5×30

FIGURE 2.4 E. Install the big and small storage Put Φ6 spring washer, Φ6 flat washer and Φ6 outter sawtooth tighten washer onto the four inner hexagon bolt by turn as figure 2.5 shows. Then fix the small storage and big storage to both sides of VHA cabinet seprately by inner hexagon spanner.

Hexangular bolt

Storage bracket

FIGURE 2.5 F. Connect the sensor Connect the sensor connector with sensor socket which is on the side of the incubator’s main body as figure 2.6 directed. Then tighten the bolt in the connector. NOTE：Connection between the sensor connector and socket should in the right orientation for these two parts have their own direction.

Fixed bolt

Sensor connector FIGURE 2.6 2-4 I5

SERVICE MANUAL FOR INFANT INCUBATOR

G. Install oxygen sensor Install oxygen sensor on the incubator as figure 2.7 directed. Stator Sensor Cover

Stopper Pull out the stator on the left side of sensor box as the arrow indicates, and pull out the sensor box, unscrew 2 Cross groove countersunk head bolts, and take out the sensor cover, and then unscrew the stopper on it. Oxygen Sensor Sensor Cover

Screw 2 oxygen sensors into the sensor cover clockwise.

Pull the connecting wire of oxygen sensor out and connect the sensor with the double wire of green and black (if the device is equipped with oxygen control system, please connect another oxygen sensor with the other double wire of yellow and black). After correctly connecting them, screw the sensor cover board down with two m3×8 cross groove head bolt, then push the sensor box into the original place in the hood. CAUTION: 1. Do not block any of the holes on the sensor box. 2. Please pull out and push in the sensor box in correct way. 3. Sensor box is the important part of controlling the temperature of the incubator, please treat it carefully. FIGURE 2.7 2-5 I5

SERVICE MANUAL FOR INFANT INCUBATOR

H. Install weighing system Install the weighing system in the incubator as figure 2.8 directs. 2 1

Adjust the bed to the lowest position, and open the front door, place the bed with baby scale on the wavering mechanism, and it can be pulled out and push in freely as the arrow 1 and 2 indicates. Arrow

Gap

Make the weight sensor can be inserted into

Weight Sensor

The gap of socket correctly 1. When plug in or out the power supply cord, the plug must be taken hold and the wring should not be pulled. 2. Do not bend the connection of sensor. Connect the plug of sensor on the baby scale with the socket on sensor box correctly. FIGURE 2.8 I. Insert the power cord Insert the power cord into the socket of general power supply. Check the INCUBATOR according to the instruction in section 2.3.

2.3 OPERATION CHECKOUT PROCEDURE Please proceed the following checkout procedure each time before operation. 1. Check caster Check whether the caster can drop when lifting the incubator 2cm above the ground. The drop of the caster will cause danger during transporting. IMPORTANT: At least two persons are required, one lifts the incubator, and the other has to check the casters. It needs Min. Please support the stand with block to avoid the incubator inclining if the casters drop. 2-6 I5

SERVICE MANUAL FOR INFANT INCUBATOR

2. START-UP THE CONTROLLER Connect the power cord of the Base to the electrical source and turn the power of the controller on. Then the device sounds like "di..." and company's label and the system edition will be displayed. Then self-check being carried for RAM, SRAM, REAL TIME CLOCK, EEPROM and communication system by the main body of the device as well as the LED indication lights on the board totally light. The whole self-check process lasts about 7 seconds. After passing self-check procedure, the device will enter operation and control interface, or else, the screen indicates the reason for not passing the self-check procedure and display the words of "Please repair it by professional maintenance man". 3. CHECK POWER FAILURE ALARM Pull off the power cord of whole unit, the Power failure alarm should active, and the “Power” light will flash with continuous audible sound. This operation is used for checking if the power failure is normal or not. Insert the power cord again after finishing checking. IMPORTANT: Make sure that the rechargeable battery is full before usage. If not full, it may cause the power failure without the alarming indication. If full, and there is no any indication after disconnecting the main power supply, please refer to the qualified service personnel. 4. CHECK HEATER Control the environment temperature at 21℃ ~ 26℃, and choose the air mode, and set the temperature at 33.0 ℃, and all heat power indicator are on, and heater will output heat completely. NOTE: When the incubator works under the setting state, and continue the following operation procedure. 5. CHECK THE ACCURACY OF TEMPERATURE CONTROL Select the Air Mode, and set the air temperature at 36℃, after the air temperature enters into the STEADY TEMPERATURE CONDITION, put the calibrated temperature measuring device on the position above 10cm from the center of mattress to measure the air temperature, compared with the indicated air temperature to check whether the deviation between them is within 0.8℃. 6. CHECK BABY MODE Insert two skin temperature sensors into the socket of skin sensor1 and skin sensor2 seprately, the arrow sign on the plug should aim to the opening on the sensor socket so that the sensor is inserted correctly.

2-7 I5

SERVICE MANUAL FOR INFANT INCUBATOR

Skin temperature Sensor 1 Arrow

Opening

Sensor plug A

Oxygen concentration sensor

Humidity sensor and air temperature sensor are located in the position A 1.Insert or pull out the skin sensor, you must hold the plug of skin sensor, pulling the leads is forbidden. 2.Please do not bend the connection of sensor. When the Air Mode works stablly, change it into the Baby Mode, set temperature at 37℃. Keep the temperature detected by skin temperature sensor is 2℃ lower than the set temperature while making the displayed air temperature 4℃ lower than the set skin temperature. The sensor failure alarm should be actived then. The “Alarm” light will flash with continuous audible sound, and the screen indicator will show “Alarm Skin Sensor 1 is placed wrong”. Pull off the skin temperature sensor 1, the sensor failure alarm should active. The “Alarm” light will flash with continuous audible sound, and the screen indicator will show “Alarm skin sensor 1 fault”. 7. CHECK PRECISION OF SKIN TEMPERATURE SENSOR Put the skin temperature sensor with the mercury thermograph for the accuracy with ±0.1ºC into the water cup with the temperature as 30ºC±5ºC. Make the probe of the skin temperature sensor and the mercury ball as closely as possible and stir enough, then read the value of mercury thermograph. Compare the value of the skin temperature sensor and the mercury thermograph, and the deviation must be within 0.5ºC. NOTE: Please check again if the accuracy of the skin temperature sensor exceeds the permissibility deviation. Please let the professional maintenance man service machine if the accuracy the skin temperature sensor exceeds the permissibility of deviation again. 2-8 I5

SERVICE MANUAL FOR INFANT INCUBATOR

8. CHECK THE SENSOR BOX

Check the connection between the modular and its socket. Only when the interface of the sensor box is correctly facing the interface of the sensor socket, they can be successfully connected. STATOR

Undraw the left stator of sensor box as the arrow indicates; under the condition of stator undrawing, undraw the sensor box outwards, to check if the Sensor box slides in or out of the hood smoothly. When the modular falls off from the hood, The “Alarm” light will flash with continuous audible sound, and the screen indicator will show “Alarm Sensor Box is placed wrong”. After the modular being put into the correct location and being fixed by stator, the alarm cancels automaticly as well as the sensor connect indicating light off. 1. All gaps in the sensor module must not be blocked. 2. Please pull out and plug in the sensor module correctly. 3. Sensor Module is an important part which supply Temperature Control to Incubator, and must operate carefully. 9. CHECK FAN MOTOR ALARM Refer to paragraph 4.2.1, open the Hood, and take out Infant Mattress, Mattress Tilt Mechanism, Mattress Tray, and the heater cover. As the follow figure, hold the Motor Fan on hand carefully, turn on the switch of the controller power, the Alarm Indicator shall be activated, the message “Alarm Motor Fault” should appear in place of the Trend Display and the audible alarm should sound. Press the Silence/Reset key, alarm is over and the Controller return to operation status. 2-9 I5

SERVICE MANUAL FOR INFANT INCUBATOR

NOTE: It must take at least 45 minutes after the incubator stopped working to perform this operation. 10. CHECK OVER-TEMPERATURE ALARM In the mode of Air Mode or Baby Mode, when the unit enters into the working condition, Press the air temperature self-definite function key and set value increasing key in figure 4.2A, at this time, all heating indicators are on, If the set temperature is no indication, it means that the controller has entered into the over-temp test state. After a long time, the device can alarm, the alarming lights are on; “Alarm Over Temperature” information can replace the curve indication on the screen. Press the silence/reset key to cancel the over-temp alarming, and then the device can return to the working condition. 11. CHECK DEVIATION ALARM In Air Mode, close all door and panels, set the temperature at 32 ºC. Enter TEMPERATURE ALARM CHECKOUT STATE（refer to descriptions of terms and symbols concerned）, fan into the hot air inside the hood. When the air temperature indicates 35.1ºC, the high deviation alarm will active. The “Alarm” light will flash with continuous audible sound, and the screen indicator will show “Alarm Temperature Deviation”; set the temperature at 35℃, after the device enters into the temperature alarming checkout state, open the front access panel, when the air temperature indicates 31.9 ºC, the low deviation alarm should active. The “Alarm” light will flash with continuous audible sound, and the screen indicator will show “Alarm Temperature Deviation”. NOTE: If the system can not enter into the TEMPERATURE ALARM CHECKOUT STATE or the air Temperature does vary within ±3℃ than the setting temperature, the deviation alarm can not occur. In Baby Mode, set the temperature at 35 ºC. Enter TEMPERATURE ALARM CHECKOUT STATE, put the skin sensor into the water cup at 37 ºC. When the skin temperature indicates 36.1 ºC, the high deviation alarm will active. The “Alarm” light will flash with continuous audible sound, and the screen indicator will show “Alarm Temperature Deviation”; Set the temperature at 35℃, after the device enters into the temperature alarming checkout state, put the skin sensor into the water cup at temperature 33℃, when the skin temperature indicates to 33.9ºC, the low deviation alarm should active. The “Alarm” light will flash with continuous audible sound, and the screen indicator will show “Alarm Temperature Deviation”. 2-10 I5

SERVICE MANUAL FOR INFANT INCUBATOR

NOTE: If the system can not enter into TEMPERATURE ALARM CHECKOUT STATE or the skin temperature does vary within ±1℃ than the setting temperature, the deviation alarm can not occur. 12. CHECK THE WATER LACKING ALARM When humidifying system is on working, pour out the water in the water tank. After a while, the incubator will alarm. The “Alarm” light will flash with continuous audible sound, and the screen indicator will show “Low Water”. 13. CHECK THE WATER RESERVOIR POSITION WRONG ALARM When the incubator is in the working state, pulling out the water tank, the incubator will alarm. The “Alarm” light will flash with continuous audible sound, and the screen indicator will show “Alarm Water Reservoir is placed wrong”. 14. CHECK THE TIMER When the controller is normally working, the message shall displays the current real time. If the displayed time is not correct, please reset the time. The setting method is as following: The time can be indicated year (four figures, the former two are the century, the rest are the year), month, data, week, hour, minute, second. Press the first self-definite function key, and switch on the controller, and the controller can enter into the interface in follow fugure to set the recording time of controller.

Press set self-definite function key, the underlined century can indicate, and then press the select self-definite function key, the underline can move with the time indication, press the increasing key or the decreasing key can change the underlined information, after correction, press the store key to change the time and record the time, press Exit key, the controller can enter into the first interface. 15. CHECK OXYGEN FEEDING SYSTEM 1 The system support with two kinds of oxygen concentration calibration: 21% oxygen ○

concentration and 100% oxygen concentration. When the oxygen concentration of the environment is below 21%, we suggest using 100% oxygen concentration calibration. 2-11 I5

SERVICE MANUAL FOR INFANT INCUBATOR

21% OXYGEN CALIBRATION Keep the incubator in the environment which oxygen concentration is 21%. a. Take out the sensor modular and press the switch of position monitor on the sensor modular to avoid alarming caused by improper place the sensor modular. b. After press the second self-definite function key, turning the controller to enter the interface of oxygen concentration calibration. Press “21% Cal.” Key, see below figure. The controller can calibrate oxygen sensor automatically, and the screen indicates “O2 sensor calibration”. After calibration, controller can enter into the first interface. If calibration work fails, the indicator displays the failure hint, and then users can solve problems according to the hint. If these failures can not be canceled, please ask the authorized and qualified personnel for repair.

100% OXYGEN CALIBRATION a. Pull the sensor box out as below figure shows, connect the oxygen calibration device which equipped with oxygen connecting pipe to the sensor box, supplying the device with 100% oxygen for more than 2min. b. After press the second self-definite function key, turning on the controller, the indicator display the interface of oxygen concentration calibration. Press “100% Cal.” Key, see the before figure. The controller can calibrate oxygen sensor automatically, and the screen indicates “O2 sensor calibration”. After calibration, controller can enter into the first interface. If calibration work fails, the indicator displays the failure hint, and then users can solve problems according to the hint. If these failures can not be canceled, please ask the authorized and qualified personnel for repair.

Sensor modular

Oxygen concentration calibration device 2-12 I5

SERVICE MANUAL FOR INFANT INCUBATOR 2 CHECK THE OXYGEN CONCENTRATION MONITOR FUNCTION ○

a. Place a calibrated oxygen concentration analyzer on the middle of the bassinet. b. Input oxygen to the device, wait until the oxygen concentration displays steady, the value deviation displayed between the value displays in the Oxygen Concentration indicator and the oxygen concentration analyzer should in the range of ±3%. 3 CHECK FOR OXYGEN CONCENTRATION DEVIATION ALARMING FUNCTION ○

Connect the oxygen-offering system and manual oxygen input port, set the oxygen concentration datum mark 30%, and then you can change the oxygen flow according to the oxygen concentration table posted on the incubator, you can increase or decrease the flow rapidly when the indication of oxygen concentration reaches the datum mark; while the indication of oxygen concentration deviates from the datum mark ±5%, the alarming can occur. “Alarm O2 Deviation” can replace the curve trend on screen. Press Silence/Reset key to cancel the alarming, but the indicator of alarming can flash continuously until the indication value does not exceed the datum mark ±5%, the indicator can be turn off. Connect the oxygen input interface of oxygen –offering system and the one of serve control. The standard of setting oxygen concentration of 30%, when the oxygen concentration reaches the standard one, rise the oxygen concentration inside of the hood (transfer the extra oxygen concentration into the hood ), to check the upper deviation alarm (＋5% deviation alarm ); When the oxygen concentration inside of hood resume the standard one, open the front panel to check the down deviation alarm (-5% deviation alarm ) , when there is deviation alarm, “Alarm O2 Deviation” can replace the curve trend. Press Silence/Reset key to cancel the alarming, but the alarming light can flash without stopping until the indicate value dose not exceed the standard ±5%, the light is off automatically. 16. CHECK WEIGHT SYSTEM 1 Calibration of weight sensor ○

a. Take out all the things on the bed and make sure the bed cleans. b. Press the zero self-definite function key, weight indicator can read 0000g±5g, if exceeds this range, press ZERO key again. c. Put the weight of 5000g on the baby scale, and then press Calibration self-definite function key, the indication window can indicate the following figure, press No key or do not pressing any key within 15s, the system can exit the calibration procedure automatically. Press Yes key, the system can enter into the calibration state, the indication window can indicate the weight within 5000g±5g, when exceeds this range, repress Calibration self-definite function key until the weight is in the right range. If failed, the baby scale should be repaired by qualified personnel. 2-13 I5

SERVICE MANUAL FOR INFANT INCUBATOR

2 CHECKING THE CONNECTING OF WEIGHT SENSOR ○

Disconnect the connection between the weight sensor and the sensor box, enter into the interface for weight, weight indicator can hint the failure of weight sensor, the controller can cancel the failure indication information automatically and indicate the weight of sensor. 17. CHECK HUMIDITY CONTROL SYSTEM 1 Fulfill the humidity chamber to the highest level with water, then place a calibrated ○

humidity analyzer in the middle of the bassinet. 2 Heating the incubator to 36℃, set the humidity value in 50%. ○ 3 Waiting until the value in the indicator rose to 50%RH, the Humidity indicator should ○

display 50%RH±10%RH. 4 Check the humidity deviation alarm ○

In the humidity set state, set the humidity value to 40%RH. Waiting until the humidity display value reach the set value, then increase the humidity display value to make it 15%RH higher than the set value, the incubator alarming, the “Alarm” light will flash with continuous audible sound, and the screen indicator will show “Alarm Humidity Deviation”. Set the humidity value to 50%RH. Waiting until the humidity display value reach the set value, then decrease the humidity display value to make it 15%RH lower than the set value, the incubator alarming, the “Alarm” light will flash with continuous audible sound, and the screen indicator will show “Alarm Humidity Deviation”. Press Silence /Reset key to stop alarming, but the alarm indicator light continuously shines until the deviation is less than ±15%RH. If 4m later, the alarming condition still exists, it will alarm again. NOTE：If the displayed value won’t rise anymore or can’t decline to the set value in the deviation rate more than ±15%, the alarm won’t occur. When checking the low-deviation alarm, please make sure that the environmental humidity is lower than the humidity in the hood so that the alarm can be active.

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SERVICE MANUAL FOR INFANT INCUBATOR

18. CHECK THE HOOD OPERATION NOTE: Make sure all cables are disconnected from the all accessories before raising the hood in order to avoid interfering with raising the Hood.

Disconnect the cord of sensor module.

THE KNOB LOCATED Disconnect the cord of the Sensor Module. Slowly tilt the Hood back until the Hood locks in place. Release the Hood by pulling on and holding the knob located on the right rear hinge while closing the Hood. 19. CHECK THE ACCESS PANEL

The Pawl Latch

UNLOCK

The Latch Seat LATCHED Rotate the panel Latches and make it stays opening. Press the latch seat to open the Access Panel to the full open position (rotate downward). Close the Access Panel, the seat latch fastened automatically and then rotate both latches until they are fully locked. Both latches and the seat latch must be fully locked to avoid accidental opening of the panel. 2-15 I5

SERVICE MANUAL FOR INFANT INCUBATOR

20. CHECK IRIS ENTRY PORTS

Rotate the outer ring of each enrty Port, the port should be open and close as rotation is continued through 360 degree. 21. CHECK INNER WALLS ARE PROPERLY LATCHED

UNLATCHED

LATCHED

Open the Access Panels and check that the front and rear inner walls are properly latched. 22. CHECK THE LATCH AND GASKET OF ACCESS DOOR

Press on-off of each access door to open it automatically and check the seal of gaskets.

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SERVICE MANUAL FOR INFANT INCUBATOR

23. CHECK MATTRESS TILT MECHANISM

Rotate the mattress tilt mechanism to adjust it. 24. CHECK BASSINET

Open the Access Panel and slide it out to the fully extended position indicated by the arrow. Lean on Mattress Tray to make sure it is properly supported to provide a firm infant platform. Return the mattress and close Access Panel. 25. CHECK THE AIR INTAKE FILTER Loosen the two thumb screws of the Air Intake Filter Cover and remove the cover and inspect the filter, if dirty, it should be cleaned. Put the filter cover back.

WARNING: A dirty Air Intake filter may affect oxygen concentration and /or cause Carbon Dioxide build-up. The filter must be checked on a routine basis and changed at least every two months. 2-17 I5

SERVICE MANUAL FOR INFANT INCUBATOR

26. CHECK THE X-RAY TRAY

Open the Access Panel and withdraw

The X-Ray Tray can be pull out easily Indicated

the X-Ray Tray.

as the arrow.

27. CHECK THE HIGH ADJUSTMENT OF THE CABINET Step the Up and Down button with your feet to adjust the height of whole unit.

Down foot button

Up foot button

CAUTION: Please adjust the height of incubator to the lowest position during moving the incubator.

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SERVICE MANUAL FOR INFANT INCUBATOR

SECTION 3 TECHNICAL INFORMATION 3.1 SPECIFICATION Specifications for the Incubators are provided in Table 3.1. All specifications maybe subject to change without advance notice. Open Access Doors and Front Panel or change Mattress obliquity, which can alter the air flow pattern, may affect temperature uniformity, temperature variability, the correlation of the Incubator temperature reading to center mattress temperature and infant skin temperature.

TABLE 3.1

SPECIFICATIONS

This equipment belongs to Class I, Type BF applied part, normal device (IP20) continuously operated. POWER REQUIREMENTS………………………………………………AC220V-230V, 50Hz,1300VA Heater Power Output……………………………………………………………………………350W/240V Working power of VHA cabinet……………………………………………………………120W/220V Working power of humidifier…………………………………………………………………190W/240V POWER output socket……………………………………AC220V-230V, 50Hz, MAX. CURRENT 3A Heater power display………………………………………0 to 100%, adjustable in 10% increments Temperature control modes………………………………………………………………………Air mode Baby mode Air Temperature Control range………………………………………………………………25℃~37℃ override mode: 37℃~39℃ (if applicable) Baby Temperature Control range……………………………………………………………34℃~37℃ override mode: 37℃ ~38℃ (if applicable) Temperature sensor display range……………………………………………………………5℃~65℃ Temperature rise Time*(environment temperature is +22℃) ……………………………… ≤40min Temperature Variation*………………………………………………………………………………≤0.5℃ Temperature Uniformity*(level mattress) ………………………………………………………≤0.8℃ Temperature Uniformity *(Tilt mattress) ……………………………………………………≤1.0℃ Deviation between the indicated air temperature and the real temperature…………≤0.8℃ Accuracy of skin temperature sensor……………………………………………………………±0.3℃ PROTECTIVELY EARTHED…………………………………………………………………………< 0.1Ω EARTH LEAKAGE CURRENT………………………………………………Normal condition: < 0.5 m A Single Fault Condition: < 1mA PATIENT LEAKAGE CURRENT……………………………………………Normal Condition: < 0.1mA Single Fault Condition: < 0.5mA PATIENT LEAKAGE CURRENT …………………………………………Single Fault Condition: < 5mA (Mains Voltage On The Applied Part )

ALARM (See section 3.2) Power failure alarm……………………………………………………………Actives if power failure Motor failure alarm………………………………………Motor failure, or motor run speed too low I5

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SERVICE MANUAL FOR INFANT INCUBATOR

TABLE3.1 SPECIFICATIONS (Continued) Fan failure alarm………………………………………Cool fan failure inside of controller or sensor box Sensor alarm……………………………………………………………..…Air temperature sensor failure Skin temperature sensor 1 is out of position Skin temperature sensor 1 failure Isolated temperature sensor failure Air temperature sensor is different from Isolated temperature sensor Air flow temperature sensor failure Sensor box placed wrong alarm………..………………….………………Sensor box is placed wrong ROM failure alarm…………………………………ROM error in the main MCU inside of the controller ROM error in the client MCU inside of the sensor box Internal system failure alarm…………Internal system error in the main MCU inside of the controller Internal system error in the client MCU inside of the sensor box SRAM failure alarm……………………………………………………SRAM error inside of the controller EEPROM failure alarm……………………………………………EEPROM error inside of the controller Real time clock failure alarm………………………………Real time clock error inside of the controller Communication failure alarm……………Communication error inside of the controller or sensor box ADC alarm………………………………..Analog-to-Digital Converters error inside of sensor box Keyboard failure alarm……………………………..………………………Short circuit on the Keyboard Battery failure alarm……………………………..……………………………Battery failure or no battery LCD display failure alarm……………………………..………………………LCD display error

Humidity control Running time when humidity chamber is full of distilled water………………humidity ≤60% RH, At least 24hrs Capacity of humidity chamber……………………………………………………………………1300ml Humidity display range………………………………………………………………0%RH ~ 99%RH Humidity control range……………………………………0% ~ 90%( adjustable in 1% increments) Humidity display accuracy (ambient temperature 20℃~40℃, ambient humidity 10% ~ 90%)………………………±10% RH NOTE: Under the very high ambient humidity, it may not reach the relative lower humidity control.

Oxygen control Oxygen display range…………………………………………………………………………0% ~ 99% Oxygen resolution………………………………………………………………………………………1% Oxygen display accuracy ………………………………………………………………………±3 vol.% Oxygen control accuracy ………………………………………………………………………±4 vol.% Oxygen set range…………………………………………20% ~ 60%( adjustable in 1% increments) Lifetime of oxygen sensor………………Max.: 10000hrs under the oxygen concentration at 100%

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SERVICE MANUAL FOR INFANT INCUBATOR

TABLE3.1

SPECIFICATIONS (Continued)

WEIGHT INDICATION Weight range……………………………………………………………………………………100 ~ 8000g Weight display accuracy …………………………………………………………………………………1g Weight indication accuracy……………………………………………………………………………±1%

ENVIRONMENT TEMPERATURE Operating Range…………………………………………………………………………………+20~+30℃ Storage Range……………………………………………………………………………………-20~+55℃

ENVIRONMENT HUMIDITY Operating Range…………………………………………………………………………………30~75%RH Storage Range……………………………………………………………………………………≤ 93%RH

ATMOSPHERIC PRESSUR Shipment and Store atmospheric pressure range…………………………………500hPa~1060hPa Operating atmospheric pressure range……………………………………………700hPa~1060hPa

AIR VELOCITY Ambient Air Velocity………………………………………………………………………………< 0.3m/s

OTHER SPECIFICATION Noise level within Hood Environment………………………………Environment noise ≤45dB(A) noise inside hood ≤55dB(A) Carbon dioxide(CO2) level within the hood…………………Less than 0.5% when a mixture of CO2 in air is delivered at 750ml/min at a point 10cm above the center of the mattress. Air Velocity Over Mattress………………………………………………………………less than 0.35m/s Lifetime of product…………….…………………………….……………………….………….…8 years

SILENCE/RESET KEY Press to silence the alarming, press twice to reset alarming. Silence……………………………………………………………………………silence alarming for 4min, alarming will silence if there is any other alarming actives Reset…………………………………………………silence alarming to come back to the setting state * Refer to Table of Definitions and Symbols

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3-3

SERVICE MANUAL FOR INFANT INCUBATOR

3.2 WORKING PRINCIPLE 3.2.1 General This section contains a functional description and detailed theory of operation of the equipment. A system block diagram of the Controller is shown in Figure 3.2 and 3.3. The control of temperature is achieved by means of air circulation system as shown in Figure 3.1. A controlled amount of room air is drawn through the air intake filter by means of the motor-driven impeller on the Controller and then drawn back to motor though air return filter. Circulated air flows through temperature sensing sensor. Temperature Controller automatically modulates the temperature inside Hood according to the temperature sensed by the air temperature sensing sensor. Heat output control under air mode: control the output of heater according to the air temperature automatically; Heat output control under baby mode: control the output of heater according to the skin temperature automatically. Oxygen feeding control: control the switch of oxygen valve automatically according to the oxygen concentration from the oxygen sensor. Humidity output control of humidity chamber: control the hater inside humidity chamber according to the humidity from humidity sensor.

FIGURE 3.1 AIR/OXYGEN CONCENTRAION/HUMIDITY CYCLE SYSTEM

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SERVICE MANUAL FOR INFANT INCUBATOR

Motor test

Keyboard

Humidity control

Displayer Main MCU

O2 servo control

I/O Control

Temperature heater control

A

Air temperature sensor

Skin temperature sensor 1 Skin temperature sensor 2 Humidity sensor

ADC Client MCU A

Oxygen sensor 1

Oxygen sensor 2 Weight sensor module

Isolated temperature sensor ADC

Air flow temperature sensor 2

Client MCU B Temperature heater control

FIGURE 3.2 CONTROL BLOCK DIAGRAM

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3-5

B

SERVICE MANUAL FOR INFANT INCUBATOR

Start INT1 Initialization Real timer

Data display

Return

INT0

YES

Key input

ADC Sampling Key handling NO Return Data handling Timer interruption

YES

Timer

Trouble checking Return NO

Alarm identification Series port interruption

Heating control

Data transfer Data display Return

FIGURE 3.3 PROCEDURE BLOCK DIAGRAM

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SERVICE MANUAL FOR INFANT INCUBATOR

3.2.2 Temperature Control In Air Mode, the controller will control the incubator temperature automatically to keep the air temperature close to the set value. Comparing the air temperature and the air set temperature, the controller will adjust the heat output proportion to keep the heat balance inside hood. The other probe inside of air sensor is regarded as the isolated temperature sensor, when set temperature is ＜ 37ºC incubator temperature must be ≤38.0ºC (while when set temperature is ＞ 37ºC incubator temperature must be ≤40.0ºC ), the heater is cut off automatically. In baby Mode, the controller will control the incubator temperature automatically to keep the skin temperature close to the set value. Skin sensor is attached to the skin of patient. Comparing the skin temperature and the skin set temperature, the controller will adjust the heat output proportion to keep the heat balance inside hood. In the whole baby mode, the isolated temperature sensor of air sensor is always monitor the inside temperature, when the incubator temperature is ≤40ºC, the heater is cut off automatically. When the baby mode is working, if the skin temperature sensor 1 drops from the socket, the skin temperature indicator displays “--.-”, the sensor alarm actives and the heater is cut off automatically.

3.3 ALARM Alarm is used for monitoring the temperature control system state. The system will check the state by the alarm checkout procedure. When the checked data is abnormal, it will alarm. Table 3.2 listed alarm condition.

TABLE 3.2 ALARM ALARM MESSAGE Power Failure Alarm Alarm Sensor box is placed wrong Alarm Air Sensor Fault

“Alarm” light is on

Alarm isolated Sensor Fault Alarm Air Sensor is different from isolated Sensor Alarm Air flow Temp. Sensor Fault

I5

DESCRIPTION If the mains power supply fails or no power supply, the alarm with audible and visual will active. If the sensor box wrongly placed, at the same time, heater stops working, press Silence/Reset Key to clear alarming for 4min, it can reset when the failure does not exist. In the air mode, if the temperature sensor short-circuit, open-circuit or bad connected, at the same time, heater stops working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. If the isolated temperature sensor short-circuit, open-circuit or bad connected, at the same time, heater stops working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. If the temperature difference detected between air temperature sensor and isolated temperature sensor over 0.8℃, at the same time, heater stops working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. If the air flow sensor short-circuit, open-circuit or bad connected, at the same time, heater stops working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. 3-7

SERVICE MANUAL FOR INFANT INCUBATOR

TABLE 3.1 ALARM (CONTINUE) ALARM MESSAGE Alarm Skin Sensor 1 Fault

Alarm Skin sensor 1 is placed wrong Alarm Humidity Sensor Fault

Alarm O2 Sensor 1 Fault

Alarm O2 Sensor 2 Fault

“Alarm” light is on

Alarm O2 Sensors are Different

Alarm Motor Fault

Alarm Fan 1 Fault

Alarm Fan 2 Fault

DESCRIPTION In Baby Mode, if the skin sensor 1 short-circuit, open-circuit or bad connected, at the same time, heater stops working, press Silence/Reset Key to clear alarming for 4min, it can reset when the failure does not exist. In Baby Mode, if the temperature detected by skin sensor 1 always 2℃ below the set temperature, at the same time, heater stops working, press Silence/Reset Key to clear alarming for 4min, it can reset when the failure does not exist. If the humidity sensor short-circuit, open-circuit or bad connected, at the same time, heater keeps working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. In oxygen module, if short-circuit or open-circuit or failure occurs on the oxygen concentration sensor 1, at the same time, heater keeps working, and the oxygen valve cuts off the oxygen feeding, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. In oxygen module, If short-circuit or open-circuit or failure occurs on the oxygen concentration sensor 2, at the same time, heater keeps working, and the oxygen valve cuts off the oxygen feeding, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. In oxygen module, the oxygen concentration deviation from oxygen sensor 1 and sensor 2 is 3%O2, at the same time, heater keeps working, and the oxygen valve cuts off the oxygen feeding, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. When the wind speed is lower than 1000rpm, at the same time, heater stops working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. Fan is failed inside control, at the same time, heater stops working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. Fan is failed inside sensor module, at the same time, heater stops working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. In air mode, If the air temperature is higher 3℃ than the set temperature, heater stops working, press Silence/Reset Key to clear alarming for 4min, it can reset when the failure does not exist.

Alarm Temperature Deviation

In baby mode, if the skin temperature is higher 1℃ than the set temperature, heater stops working, press Silence/Reset Key to clear alarming for 4min, it can reset when the failure does not exist. In air mode, if the air temperature is lower 3℃ than the set temperature. At this time, the heater keeps working, press Silence/Reset Key to clear alarming for 4min, it can reset when the failure does not exist. In baby mode, if the skin temperature is lower 1℃ than the set temperature. At this time, the heater keeps working, press Silence/Reset Key to clear alarming for 4min, it can reset when the failure does not exist. 3-8 I5

SERVICE MANUAL FOR INFANT INCUBATOR

TABLE 3.1 ALARM (CONTINUE) ALARM MESSAGE

Alarm Humidity Deviation

Alarm O2 Deviation

Alarm Over Temperature “Alarm” light is on

Humidity from humidity sensor is higher 15%RH than the set humidity. At this time, the heater keeps working, while evaporator stops working, press Silence/Reset Key to clear alarming for 4min, it can reset when the failure does not exist. Humidity from humidity sensor is lower 15%RH than the set humidity. At this time, the heater keeps working, and evaporator keeps working, press Silence/Reset Key to clear alarming for 4min, it can reset when the failure does not exist. The oxygen concentration from oxygen sensor 1 is higher 5%O2 than set value, at the same time, heater keeps working, and the oxygen valve cuts off the oxygen feeding, press Silence/Reset Key to clear alarming for 110s, it can reset when the failure does not exist. The oxygen concentration from oxygen sensor 1 is lower 5%O2 than set value, at the same time, heater keeps working, and the oxygen valve keeps the oxygen feeding, press Silence/Reset Key to clear alarming for 110s, it can reset when the failure does not exist. In the air mode, when the incubator temperature is less than 38℃(set temperature ＜37℃) or less than 40℃（set temperature ＞ 37℃ ） , at the same time, heater stops working, press Silence/Reset Key to clear alarming for 4min, it can not reset after clearing the failure, press Silence/Reset Key to clear alarming. In the Baby mode, when the incubator temperature is less than 40℃, at the same time, heater stops working, press Silence/Reset Key to clear alarming for 4min, it can not reset after clearing the failure, press Silence/Reset Key to clear alarming.

Alarm Air flow Temp. Over Fault

The temperature detected by air-flow temperature sensor is overhigh, at the same time, heater stops working, press Silence/Reset Key to clear alarming for 4min, it can not reset after clearing the failure, press Silence/Reset Key to clear alarming.

Alarm Water Reservoir is placed wrong

When the water tank is not in the correct location, at the same time, the heater stops working, press Silence/Reset Key to clear alarming for 4min, it can reset when the failure does not exist.

Alarm ROM of main MCU Fault Alarm ROM of client MCU A Fault Alarm ROM of client MCU B Fault Alarm Internal system of main MCU Fault Alarm Internal system of client MCU A Fault I5

DESCRIPTION

ROM inside of main MCU fails. At this time, the heater will stop working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. ROM inside of auxiliary MCU A fails. At this time, the heater will stop working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. ROM inside of auxiliary MCU B fails. At this time, the heater will stop working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. The ALU or inner RAM in the main MCU failure, At this time, the heater will stop working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. The ALU or inner RAM in the auxiliary MCU A failure, At this time, the heater will stop working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. 3-9

SERVICE MANUAL FOR INFANT INCUBATOR

TABLE 3.1 ALARM (CONTINUE) ALARM MESSAGE Alarm Internal system of client MCU B Fault Alarm EEPROM Fault Alarm SRAM Fault Alarm Communication A Fault Alarm Communication B Fault

“Alarm” light is on

DESCRIPTION The ALU or inner RAM in the auxiliary MCU B failure, At this time, the heater will stop working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. EEROM inside main MCU fails, At this time, the heater will stop working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. SRAM failure (including system cord failure). At this time, the heater will stop working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. Communication of main MCU and Auxiliary MCU A fails, At this time, the heater will stop working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. Communication of Auxiliary MCU A and Auxiliary MCU B fails, At this time, the heater will stop working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part.

Alarm ADC1 Fault

The Analog-to-Digital Converter TLV2548 inside of the sensor box is error, At this time, the heater will stop working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part.

Alarm ADC2 Fault

The Analog-to-Digital Converter TLV2544 inside of the sensor box is error, At this time, the heater will stop working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part.

Alarm ADC3 Fault

The internal Analog-to-Digital Converter of the client MCU MS1210 is error inside of the sensor box, At this time, the heater will stop working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part.

Alarm Keyboard Fault Alarm Battery Fault Alarm Temperature heater system F lt Alarm Real Time Clock Fault Alarm water shortage

The keyboard circuit is broken, at this time, the heater will stop working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. The battery inside of the controller is error, at this time, the heater will stop working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. The temperature heater system inside of controller is error, at this time, the heater will stop working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. The timer RTC inside the system fails or is not accurate, at this time, the heater will stop working, press Silence/Reset Key to clear alarming for 4min, please refer to the service part. When the water in the water tank is lower than the detect point, at the same time, the heater will working, the heater in the water reservoir stop working, press Silence/Reset Key to clear alarming for 4min, it can reset when the failure does not exist.

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SERVICE MANUAL FOR INFANT INCUBATOR

SECTION 4 CLEANING AND MAINTENANCE 4.1 GENERAL This section provides cleaning and maintenance instructions. WARNING: Disconnect all the connections with oxygen feeding device before cleaning and maintenance. Cleaning or maintenance in the environment full with oxygen will cause fire or explosion.

4.2 CLEANING This device must be cleaned and sterilized for the first time for initial use, or after used it for one week. 4.2.1 DISASSEMBLY BEFORE CLEANING 1. Turn off the Power Switch on the VHA Pedestal and remove the Power Cord. Disconnect the cables from the Sensor Module and slowly raise the Hood. CAUTION: Before lifting Incubator Hood for cleaning, ensure that all mounted accessories have been removed to prevent possible interference with the raised Hood. 2. Refer to Paragraph 2.3, Step Y, and remove the X-ray Tray from the Mattress Tray. 3. Refer to Figure 4.1 and remove the Mattress Tray. (For the bed with the baby scale, please see the figure 2.8, disconnect the weight sensor and take the baby scale out. Then lift the raise the Hood.)

Push the Mattress Tray to end following as the arrow 1, raising the Mattress Tray like the arrow 2, then pull out it as the arrow 3. FIGURE 4.1

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SERVICE MANUAL FOR INFANT INCUBATOR

4. Refer to Figure 4.2 and remove the Mattress Tilt Bars.

FIGURE 4.2 5. Refer to Figure 4.3 and pull out the Main Deck by loosening the screw.

FIGURE 4.3 6. Refer to Figure 4.4 and remove the Heater Cover.

FIGURE 4.4 The Heater can be sufficiently hot to cause burns. Avoid removing or touching the Heater until the unit has been switched off for at least 45 minutes.

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SERVICE MANUAL FOR INFANT INCUBATOR

7. Refer to figure 4.5 and take out the inner walls. The Inner Walls are hinged on the Access Panel or rear wall of the Incubator. Refer to Paragraph 2.3 Step T, and release the Inner Wall by pressing on the catches located at the top of the Inner Wall. Press the inner wall, and at same time, move it as the arrow 1 indicates to take out the inner wall.

1

FIGURE 4.5 8. Refer to figure 4.6 and take out the water reservoir.

Handle Reservoir

Rotate the spanner of the water tank to the horizontal position and pull the water tank out then. (Please keep the water tank flat and straight and don't move it up towards when it been pulled out, or else it will be hard to pulled out). FIGURE 4.6 CAUTION：1. Because the temperature of the water tank is high after the power of the device is on as well as the heating groups are tighten then, so please take out the water tank after it is totally cooling down to avoid damage to the heating group. 2. The humidifying system is in the bottom of the reservoir. Don’t put hands into the reservoir to avoid being burned.

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SERVICE MANUAL FOR INFANT INCUBATOR

9. Refer to figure 4.7 and take out the fan. NOTE: The direction for unscrewing the heat dissipation slice in way of anti-clock wise.

Cover For Bolt

Hold the fan, and loose the cover for bolt, draw the fan upward FIGURE 4.7 10. As the figure 4.8, take out the oxygen transfusion tube.

Unscrew the fixing nut of the oxygen transfusion tube, and take it out FIGURE 4.8 11. Remove all Access Door Sleeves, Cuff and Gaskets from each side of the Hood by pulling them free. 12. Remove Tubing Access Ports from the Hood by pulling them free. 13. Remove the Air Intake Micro filter Cover by loosening the two thumbscrews. Refer to Paragraph 2.3 Step X. 4.2.2 CLEANING PROCEDURE CAUTION: Some chemical cleaning agents may be conductive and/or leave a residue which may permit a build-up of dust or dirt which may be conductive. Do not permit cleaning agents to contact electrical components. Do not spray cleaning solutions onto any of those surfaces.

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SERVICE MANUAL FOR INFANT INCUBATOR

A. Clean the skin temperature sensor and sensor modular Use a disinfectant-detergent to thoroughly clean all surfaces; then dry with a clean cloth or paper towel. CAUTION: Do not steep Sensor into disinfectant-detergent and avoid the disinfectantdetergent leak into the sensor modular. B. Clean the Soft tubing, Gaskets, Iris Port Sleeves Allow parts to soak as recommended by the cleaning solution’s manufacturer, then remove them and dry completely with a clean cloth or paper tower. C. Clean the Hood and inner wall Use a disinfectant-detergent to thoroughly clean all surfaces, including all holes, indentations, Access Doors and Iris Ports then dry them with a clean cloth or paper towel. NOTE: Alcohol can cause crazing of the clear Acrylic panel. Do not use alcohol, acetone, or any organic solvents for cleaning. Do not expose the panel assembly to direct ultraviolet radiation. D. Clean the controller Use detergent to clean the all surfaces thoroughly. Then dry it with clean cloth. E. Clean the heater radiator and fan impeller Remove any lint build-up on the Heater Radiator and Fan Impeller. WARNING：Not clean the heater and fan will result in accumulate of fiber dust, baffle the air flow. That will influence the temperature control and result in high CO2 concentration. F. Clean the mattress, mattress tilt bars, main deck, shelf, storage compartment and heater cover. Use a disinfectant-detergent to thoroughly clean all surfaces; then dry with a clean cloth or paper towel. G. Clean mattress cover Use a disinfectant-detergent to thoroughly clean it and sun it after washing it with clean water. H. Clean the infant bed Separate the upper bed and the lower bed, clean the dirt’s inside the bed; clean the surface of bed and baby scale (accessory) with the cloth dipping into the detergent, and dry it with clean cloth. NOTE: There is weight sensor inside of bed, clean and place carefully, do not put it into the detergent and sterilized liquid. I. Clean Air filter Use a disinfectant-detergent to thoroughly clean all surfaces, including all holes, indentations, Access Doors and Iris Ports then dry them with a clean cloth or paper towel. If the air filter is dirt or is used for more than 2 months, please replace it. I5

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SERVICE MANUAL FOR INFANT INCUBATOR

J. Clean Water tank and Humidity chamber fill spout Take the humidifying chamber out from the drawer group as figure 4.7 shows. Open the two cover boards on the humidifying chamber and pull up the water input baffle. Use the national registered neutral disinfectant-detergent to clean the all surfaces and cupped place thoroughly. Clean it again with clean water and then dry it with clean cloth or paper. Please pay special attention that clean the inner and outter surface of the probe with the around the detect point can control the microorganism breed in the water tank and ensure the accuracy of the water level detecting. When the scale appears visibly on the radiating cover inside the water tank, it is recommended to soak it with table vinegar or the scale cleaning detergents which is used exclusively for casting water dispenser. The soaking time is about 15min to 20 min. (The longer the radiating cover be soaked, the better) .In the process of soaking, make sure that the cover is immersed entirely. After soaking, scrub with bottle brush and rinse the cover till the scale is cleaned completely. Reek outlet

Cover board

Detecting probe

Radiating cover Water proof Gap of the water proof

Humidity chamber

Drawer groups

Water inlet hole on the bottom

CAUTION：1. Please clean the water tank after the radiating cover inside the water tank totally cooleddown. 2. Make sure the water inlet hole on the bottom and the reek outlet hole of tank throughable after cleaning. Two gaps on the water proof must placed downwards. 3. If the water tank is uncleaned, especially there're dusts near the probe, there will be a possibility that water-lacking alarm failure. 4. Please use soft cloth to wipe the surface of the probe when it is covered by nobel metal. Do not use the hard material to scrape the probe so as not to damage it. 5. When the scale appears on the radiating cover visibly, you must clean it in time, or it will easily breed ground for bacterium and affect the humidification. FIGURE 4.9 K. Clean the oxygen infusion tube Clean the surface of oxygen infusion tube with clean cloth. Replace it when it is damaged. L. Clean surface of device Use a disinfectant-detergent to thoroughly clean all surfaces, including all holes, indentations, Access Doors and Iris Ports then dry them with a clean cloth or paper towel.

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SERVICE MANUAL FOR INFANT INCUBATOR

4.2.3 REASSEMBLY AFTER CLEANING NOTE: Before reassembling parts into Incubator, check carefully if there is any crack or damage. Some disinfectant-detergent may cause crazing of plastic parts in Incubator. A. Install Humidity chamber fill spout in the reverse steps as they are moved out. B. Install the Heater Cover. C. Install the Main Deck. CAUTION: Make sure the Hood is raised before attempting to install the Main Deck. Installing the Main Deck when the Hood is down may result in damage to the Main Deck and/or jamming of the Hood in place. D. Install the Mattress Tilt Bars on the Main Deck. E. Install the Mattress Tray and X-ray Tray. F. Install the Mattress. Visually and physically examine the mattress for any holes or cuts that will permit the entry of fluids onto the inner foam. If the mattress is damaged, it should be replaced. G. See figure 4.5 install inner walls in the reverse steps as they are moved out. H. Rotating the iris entry sleeves, see figure 4.10.

Install the smaller diameter elastic band of a new

Fold back and slip elastic band over

Sleeve over the inner ring of the port housing.

the outer ring of the port housing.

Rotate outer ring to close. If properly installed, the sleeve will open again if rotation is reversed. FIGURE 4.10 I5

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SERVICE MANUAL FOR INFANT INCUBATOR

I. See figure 4.11, install the Access door gasket, and then install the Access door cuff.

Installation of Access Door Gasket

Installation of Access Door Cuff

FIGURE 4.11 J. Install Tubing Access Ports, as shown in Figure 4.12.

FIGURE 4.12 K. Install an Air Intake Micro filter. Refer to the Paragraph 2.3, Step X, place the Air Intake Micro filter into the Cover and tighten the two thumbscrews.

4.3 STERILIZATION NOTE: Please do not steam autoclave. Please sterilize under low temperature.

4.4 MAINTENANCE Please check the condition of the build-in rechargeable battery before the first use of device or in the alternation of device using. A. Operate the unit for a period of 12 to 24 hours. B. Trigger a power failure alarm by disconnecting the AC power cord. C. The power failure alarm should activate and continue to alarm for at least 10 minutes. D. Reconnect the unit to the AC line and recharge the battery. If the power failure alarm cannot last more than 10 minutes, please replace the rechargeable battery. For this battery, it should be replaced by authorized and qualified service personnel.

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SERVICE MANUAL FOR INFANT INCUBATOR

SECTION 5 SERVICE 5.1 GENERAL This section provides faliure detecting and overhauling for the humidity system failure, oxygen supplying system failure, inner rechargeable battery failure and the replacement for fuses.

5.2 HUMIDITY SYSTEM 5.2.1 Working Principle See following figure, and the humidity id mainly composed of the water saving part, humidifier, heater and so on. Water from water saving part filters from the baffle naturally to enter into the humidifier through the water inlet, and the heater will heat the heat conduction bush to make the water boil, which produce the vapor and then enter inside hood through the vaport outlet. With the output of vapor, there is always water to be added to the humidifier to keep the water in humidifier to consist with the one in water saving part. When the water level is lower, please add water from the water inlet. Water adding port

Water saving part

vapor outlet

humidifier

micro switch

temperature control switch

baffle water inlet shell of humidity chamber

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heat conduction bush

heater

SERVICE MANUAL FOR INFANT INCUBATOR

5.2.2 Service The following table lists the possible trouble failure, reason and remedy within the lifetime of humidity system: TABLE 5.1 TROUBLE FAILURE TROUBLE FAILURE

Abnormal humidity message

Distilled Water Can Not Enter Into The Humidifier

Water Leakage

REASON

REMEDY

1.Humidity Sensor Failure

See Flow Chart 5.11

2.Heater Is Damaged For Short Circuit

Replace Heater

3. Temperature Controller Switch For Short Circuit

Replace The Temperature Controller Switch

1.Baffle Hole Is Blocked

Clean Baffle

2.Water Inlet Is Blocked

Clean Water Inlet

Heat Conduction Bush Is Loose

Tighten The Screw Or Replace The Silicon Pad

Too Much Overflow

Distilled

Water

Will

Lower It To The Highest Water Level

5.3 OXYGEN SYSTEM 5.3.1 Working Principle Oxygen feeding system is mainly composed of seperation unit of air and oxygen, electric valve, MCU control system, and there is two connectors on the seperation unit of air and oxygen: one connects the system servo control oxygen port, and the other connects the inlet. The system will compare the oxygen concentration from oxygen sensor and the set oxygen concentration during supplying oxygen, and it will output the differenct control signals accoridng the result to control the on and off for the electric valve so that the oxygen concentration inside hood will reach the stable state. seperation unit of air and oxygen

electric valve

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SERVICE MANUAL FOR INFANT INCUBATOR

5.3.2 Service The following table lists the possible trouble failure, reason and remedy within the lifetime of oxygen system: TABLE 5.2 TROUBLE FAILURE TROUBLE FAILURE

Abnormal oxygen message

REASON

REMEDY

1.humidity sensor failure

See flow chart 5.12

2.heater is damaged for short circuit

See flow chart 5.12

3. temperature controller switch for short circuit

See flow chart 5.13

High devication of oxygen concentration

Check whether the oxygen flow rate is over high. Calibrate oxygen concentration sensor Check the seal condition of access doors and panels

Alarm O2 Deviation Low devication of oxygen concentration

Much noise of oxygen supply

Check whether the oxygen flow rate is over low. Check whether the output voltage of oxygen concentration sensor is normal, (output voltage in normal condition is ＞9mV), or else, replace oxygen concentration sensor Check oxygen concentration sensor

Connector of oxygen system may leak oxygen

Check the seal condition of all connectors

Spring inside the seperation unit of air and oxygen may change

Replace the seperation unit of air and oxygen

5.4 REPLACEMENT OF ELEMENT 5.4.1 DISASSEMBLY THE CONTROLLER 1. See figure 5.1, uncrew the fixing bolt beside of power switch of controller.

FIGURE 5.1 5-3 I5

SERVICE MANUAL FOR INFANT INCUBATOR

2. See figure 5.2, take out the controller.

FIGURE 5.2 3. Disconnect all connection on the back of controller, and unscrew the bolts on two sides of contrtoller, and you can open the cover for the controller. 5.4.2 REPLACEMENT OF FUSE AND INTERNAL BATTERY A. Replacement Of Internal Battery Open Controller and replace internal battery. See figure 5.3, disonnect the battery fastener and the internal charing battery, and take out the plastic warsher to replace the battery.

Battery fastene

Internal charing battery

Baffle

FIGURE 5.3 NOTE: 1. During replacing the internal battery, the plastic washer should be placed the original position, and keep correct connection between the anode/ cathode of battery and its fastener; the faulty connection will cause the damage to the battery and no hont for power failure alarm. 2. Please replace theb internal battery after using it for three years. 3. Battery will be automatically charged when the temperature controller works, charging the battery outside of the incubator is forbidden. 4. The charging battery inside the wartmer is GP17R8H Ni-MH8.4V/170mAh, to ensure safety, do not disassemble battery. Connect the battery correctly, do not use other type battery. 5. It will not influence battery charging and the battery capacity when the battery is full. (Switch on controller) 6. Please do not throw the old battery into fire or water to avoid explosion or leakage. 7. Please dispose the Old battery accoring to local law, and please do not throw them away randomly. 5-4 I5

SERVICE MANUAL FOR INFANT INCUBATOR

B. Replacement Of Fuse a. See figure 5.4, unscrew the fuse's cover to replace 2pcs fuse F6.3AH/250V

Fuse’S Seat

FIGURE 5.4 b. See figure 5.5, open the outer shell of controller.Open the fuse's cover T type fuse T1AL/250V and T800mAL/250V on power board with tools to replace the fuse. Unscrew he fuse's cover T type fuse T 160mAL/250V of power transformer to replace the fuse. Fuse’S Seat

Fuse’S Seat

Fuse’S Seat FIGURE 5.5 NOTE: You must cut off the power supply when replacing the fuse, and then pull off the power cable, replace the fuse according to the marked specification. 5.4.3 REPLACE HEATER See figure 5.6, rotate anticlockwise to replace heater.

FIGURE 5.6 5-5 I5

SERVICE MANUAL FOR INFANT INCUBATOR

5.4.4 REPLACEMENT OF SEPARATING UNIT FOR AIR AND OXYGEN See figure 5.7, take out the air filter cover, and unscrew the fixed bolt on separating unit for air and oxygen, pull it out from the port from the air filter, and unscrew the connectors from separating unit for air and oxygen to change it. connection of oxygen port inlet connection

FIGURE 5.7 NOTE: The inlet on the separating unit for air and oxygen and inlet of oxygen feeding are connected, therefore, please be careful to pull out the separating unit for air and oxygen, do not pull it out for lond distance. CAUTION: After replacing the separating unit for air and oxygen, make sure all tubes are correctly connected and sealed. 5.4.5 Replacement Of Baby Scale Because the baby scale is connected with bassinet together, therefore, please replace the whole part when the weight system is damaged.

5.5 SYSTEM SETTING PROCEDURES 5.5.1 General This paragraph provides controller system setting procedure. This procedure is only available to the qualified service personnel. NOTE: Please follow by the procedures of item 5.5.3. If it is unnecessary, please do not change data of system setting to avoid hazards. 5.5.2 Brief Introduction Controller system setting procedures listed below: 1. Air temp Compensation 2. Air flow Compensation 3. Skintemp 1 Compensation 4. Skintemp 2 Compensation 5. Humidity Compensation 6. Incubator Address 5-6 I5

SERVICE MANUAL FOR INFANT INCUBATOR

7. Alarm-set Fan Motor 8. Alarm-set Air temp Low 9. Alarm-set Air temp High 10. Alarm-set Skin temp Low 11. Alarm-set Skin temp High 12. Alarm-set Humidity Low 13. Alarm-set Humidity High 14. Alarm-set O2 Low 15. Alarm-set O2 High 16. Set Minimum Humidity 17. Set Maximum Humidity 18. Set Minimum O2 19. Set Maximum O2 20. Set Minimum Air temp 21. Set Maximum Air temp 22. Set Minimum Skin temp 23. Set Maximum Skin temp 24. Set Over-temp A for 37℃ 26. Alarm-set Air flow A for 37℃ 5.5.3 Procedure At first, connected power supply, press and hold and loose

key , LCD screen will indicate like the figure 5.8:

FIGURE 5.8 5-7 I5

key and turn on the power supply for 3s

SERVICE MANUAL FOR INFANT INCUBATOR

See figure 5.8, press

or

key to switch the number, and them press the muner key

to input the password 78722, press

key to enter into the system setting screen--first screen

infigure 5.9. At this time, press the select key to choose the different item to set, the left arrow can show the current item, at this time, press

or

key to set the data of current item. If not pressing

any key for 20s, the system will exit the setting screen.

The first screen

The second screen FIGURE 5.9

A. The first screen

Select Select Press this key to move the arrow downward“

” that indicated on the left side of screen. The arrow

can move circularly, if you miss the wanted item, you have to move the arrow to the last item and restarting the arrow-moving. After choose the wanted item, press

or

key to change the

setting value of the selected item.

Store Press this key to store the current changed setting value.

Menu Press this key to enter into the second screen:

Exit Press this key to exit the system setting interface, the controller enters into the working mood and starts self-testing then.

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SERVICE MANUAL FOR INFANT INCUBATOR

B. The second screen Default Press this key to reset the system data to the original set value. Resume Press this key to load the copied data. (namely the data which have been copied before) Backup Press this key to copy the current data, for the using of reset. Home

Press this key to exit the second display interface to the first display interface. z

1. Air temp Compensation Stipulate the temperature compensation of air sensor, and the setting value is +050~-050,

“+”and“-”mean the increasing and descreasing value. For example, “+002” means that the temperature meansured by air sensor increases by 0.2℃ as compensation, “-013” means that the temperature meansured by air sensor decreases by 1.3℃ as compensation. NOTE: This temperature compensation acts on isolated temperature sensor. z

2. Air flow Compensation Stipulate the temperature compensation of air flow temperature sensor, and the setting value is

+050~-050，“+”and“-”mean the increasing and descreasing value. For example, “+002” means that the temperature meansured by air flow temperature sensor increases by 0.2℃ as compensation, “-013” means that the temperature meansured by air flow temperature sensor decreases by 1.3℃ as compensation. z

3. Skin temp 1 Compensation Stipulate the temperature compensation of skin sensor 1, and the setting value is +050~-050，

“+”and“-”mean the increasing and descreasing value. For example, “+002” means that the temperature meansured by skin sensor 1 increases by 0.2℃ as compensation, “-013” means that the temperature meansured by skin sensor 1decreases by 1.3℃ as compensation. z

4. Skintemp 2 Compensation Stipulate the temperature compensation of skin sensor 2, and the setting value is +050~-050，

“+”and“-”mean the increasing and descreasing value. For example, “+002” means that the temperature meansured by skin sensor 2 increases by 0.2℃ as compensation, “-013” means that the temperature meansured by skin sensor 1decreases by 1.3℃ as compensation.

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z

5. Humidity Compensation Stipulate the relative humidity compensation of humidity sensor, and the setting value is

+050~-050，“+”and“-”mean the increasing and descreasing value. For example, “+008” means that the relative humidity （%）meansured by humidity sensor increases by 8% as compensation, ”-118” means that the relative humidity （%）meansured by humidity sensor decreases by 18% as compensation. z

6. Incubator Address The address of the infant incubator, and the range of number is 0~40, For example, 001 means the

machine No. 1, 015 means the machine No. 15. This number is just used for the central monitoring operation. z

7. Alarm-set Fan Motor Stipulate the setting methods of alarm value for motor speed. Seeting range is 000~255，every 001

means 20rpm. For example, “050” means 1000rpm, if the speed of motor is lower than this speed, it will alarm. z

8. Alarm-set Air temp Low Stipulate the setting methods of alarm value for low deviation in air mode. Seeting range is

000~050，for example, “008” means 0.8℃, if the temperature measured by the air sensor is lower 0.8℃ than the setting temperature, it will alarm. z

9. Alarm-set Air temp High Stipulate the setting methods of alarm value for high deviation in air mode. Seeting range is

000~050，for example, “008” means 0.8℃, if the temperature measured by the air sensor is higher 0.8℃ than the setting temperature, it will alarm. z

10. Alarm-set Skin temp Low Stipulate the setting methods of alarm value for low deviation in skin mode. Seeting range is

000~050，for example, “008” means 0.8℃, if the temperature measured by the skin sensor 1 is lower 0.8℃ than the setting temperature, it will alarm. z

11. Alarm-set Skintemp High Stipulate the setting methods of alarm value for high deviation in skin mode. Seeting range is

000~050，for example, “008” means 0.8℃, if the temperature measured by the skin sensor 1 is higher 0.8℃ than the setting temperature, it will alarm. z

12. Alarm-set Humidity Low Stipulate the setting methods of alarm value for humidity low deviation. The setting value is

000~020. For example, “008” means that the relative humidity 8% for low deviation, if thehumidity measured by the humidity sensor is lower 8% than the setting value, it will alarm. 5-10 I5

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z

13. Alarm-set Humidity Higih Stipulate the setting methods of alarm value for humidity high deviation. The setting value is

000~020. For example, “008“ means that the relative humidity 8% for high deviation, if thehumidity measured by the humidity sensor is higher 8% than the setting value, it will alarm. z

14. Alarm-set O2 Low Stipulate the setting methods of alarm value for oxygen concentration low deviation. The setting

value is 000~010. For example, “005” means that the oxygen concentration 5% for low deviation, if thehumidity measured by the oxygen concentration sensor is lower 5% than the monitoring value, it will alarm. z

15. Alarm-set O2 High Stipulate the setting methods of alarm value for oxygen concentration high deviation. The setting

value is 000~010. For example, “005” means that the oxygen concentration 5% for high deviation, if thehumidity measured by the oxygen concentration sensor is higher 5% than the monitoring value, it will alarm. z

16. Set Minimum Humidity Stipulate the setting methods of lower limit for humidity setting. The lower limit value is 000~050.

For example, “020”means that Min. setting value is 20% rlative humidity. z

17. Set Maximum Humidity Stipulate the setting methods of lower limit for humidity setting. The lower limit value is 030~100.

For example, “090” means that Min. setting value is 90% relative humidity. z

18. Set Minimum O2 Stipulate the setting methods of lower limit for oxygen concentration. The lower limit value is

000~030. For example, “020” means that Min. setting value is 20% oxygen concentration. z

19. Set Maximum O2 Stipulate the setting methods of upper limit for oxygen concentration. The upper limit value is

030~065. For example, “060” means that Min. setting value is 60% oxygen concentration. z

20. Set Minimum Airtemp Stipulate the setting methods of lower limit for air temperature. The lower limit value is 000~340.

For example, “250” means that Min. setting value is 25.0℃. z

21. Set Maximum Aritemp Stipulate the setting methods of upper limit in the mode of air setting temperature＞37℃. The

upper limit value is 370~390. For example, “390” means that Min. setting value is 39.0℃. 5-11 I5

SERVICE MANUAL FOR INFANT INCUBATOR

z

22. Set Miminum Skintemp Stipulate the setting methods of lower limit for skin temperature. The lower limit value is 300~340.

For example, “340” means that Min. setting value is 34.0℃. z

23. Set Maximum Skintemp Stipulate the setting methods of upper limit in the mode of skin setting temperature＞37℃. The

upper limit value is 370~390. For example,” 380” means that Min. setting value is 38.0℃. z

24. Set Ovet-temp A for 37℃ Stipulate the setting methods of over-temp alarm in the mode of air temperature （ setting

temperature ＞37.0℃）or in the skin mode. The alarm value is 385~400. For example, “395” means that over-temp alarm value is 39.5℃. z

26. Alarm-set Air flow A for 37℃ Stipulate the setting methods of air flow temperature alarm in the mode of air temperature（setting

temperature ＞37.0℃）or in the skin mode. The alarm value is 405~520. For example, “395” means that over-temp alarm value is 39.5℃.

5.6 PROCEDURE OF TROUBLE-SHOOTING 5.6.1 Introduction Section 5.6.3 and 5.6.4 will offer the repairing methods of control. In section 5.6.3, it offers the alarm code when the alarm of the controller happens; in section 5.6.4, it gives the details of the repairing methods by the way of flow chart. NOTE: Before deal with the troubles, you should confirm the correct set of the system set procedure. 5.6.2 Test device During the trouble-shooting procedure, it needs the following test devices, and you can replace it with the same effect device. 5-12 I5

SERVICE MANUAL FOR INFANT INCUBATOR

z

Figure clock, FLUKE 17B Type

z

31.0℃ Air Temperature Simulation

Resistor Resistor R=23166Ω/0.25W/0.5% z

31.0℃ Air flow Temperature Simulation

Resistor Resistor R=23166Ω/0.25W/0.5% z

31.0℃ Skin Temperature Simulation

Resistor Resistor R=23166Ω/0.25W/0.5% 5.6.3 Troubleshooting All alarms have the relevant alarm code except for the power ailure alarm, please refer to Table 5.3. TABLE 5.3 ERROR CODES TYPE

Air temperature sensor failure alarm

EXPLANATION AND CORRECTIVE ACTION 1. check whether the sensor module is placed right or not 2. check the connection between the micro switch on the bottom of sensor module and hood 3. replace sensor module Refer to Flow chart 5.1

Isolated temperature sensor alarm

Refer to Flow chart 5.2

temperature deviation failure alarm

Refer to Flow chart 5.3

Air flow sensor alarm

Refer to Flow chart 5.4

Skin temperature sensor 1 failure alarm

Refer to Flow chart 5.5

Over temperature failure alarm

Refer to Flow chart 5.6

Air flow over-temp failure alarm

Refer to Flow chart 5.7

Wrong position of skin sensor 1 alarm

Check the position of skin sensor 1

Fan motor failure alarm

Refer to Flow chart 5.8

Fan failure alarm inside controller

Refer to Flow chart 5.9

Fan failure alarm inside sensor module

Refer to Flow chart 5.10

High deviation temperature failure alarm

Check whether there is heat source nearby, far away from the heat source

Low deviation temperature failure alarm

Check the closing condition of all doors and panels

Humidity sensor failure alarm

Refer to Flow chart 5.11

Sensor module failure alarm

5-13 I5

SERVICE MANUAL FOR INFANT INCUBATOR

TABLE 5.3 ERROR CODES (Continued) TYPE

EXPLANATION AND CORRECTIVE ACTION

High deviation alarm for humidity

Check whether there is water inside of humidity chamber Check the humidity condition around

Oxygen concentration sensor 1 failure alarm

Refer to Flow chart 5.12

Oxygen concentration sensor 2 failure alarm

Refer to Flow chart 5.12

Difference alarm of oxygen sensor 1 and sensor 2

Refer to Flow chart 5.13

High deviation alarm concentration sensor 1

for

Oxygen

Check whether outside oxygen flow rate is overhigh

Low deviation alarm concentration sensor 1

for

Oxygen

Low deviation alarm for humidity

Check whether oxygen flow rate is small

ROM failure alarm inside main MCU

Replace Main MCU

Internal system failure alarm inside main MCU

Replace Main MCU

ROM failure alarm inside auxiliary MCU A

Replace sensor board

Internal system failure alarm inside auxiliary MCU A

Replace sensor board

ROM failure alarm inside auxiliary MCU B

Check Auxiliary MCU B inside sensor module(AT89C4051, replace the sensor board)

Internal system failure alarm inside auxiliary MCU B

Check Auxiliary MCU B inside sensor module(AT89C4051, replace the sensor board)

ADC failure alarm outside Auxiliary MCU A

Refer to Flow chart 5.14

ADC failure alarm outside Auxiliary MCU B

Refer to Flow chart 5.15

ADC failure alarm inside Auxiliary MCU A

Check Auxiliary MCU A inside sensor module (MS1210), replace the sensor board

Temperature heater system failure alarm

Refer to Flow chart 5.16

Humidity heater system failure alarm

Refer to Flow chart 5.17

EEPROM inside main MCU failure alarm

Replace main MCU

SRAM failure alarm

1. check the connection between SRAM and MCU 2. check SRAM (U7 on main board)

Real timer RTC failure alarm Communication failure alarm between main MCU and auxiliary MCU A Communication failure alarm between auxiliary MCU A and auxiliary MCU B Keyboard fault alarm

Battery failure alarm Power failure alarm

1. check the connection between RTC and MCU 2. check RTC (U23 on main board) 1. Check the connection of circuit between the main MUC and auxiliary MCU 2. Replace main MUC and auxiliary MCU Replace sensor board When the key board of the control panel on controller short-circuit alarms, please replace the control panel. Inner storage battery failure alarm: 1. Check the wire connection between the inner storage battery and the power board. 2. Replace the inner storage battery. Refer to Flow chart 5.18 5-14 I5

SERVICE MANUAL FOR INFANT INCUBATOR

5.6.4 Troubleshooting Flow Chart Turn off the power supply before reparing, remove the controller and sensor box from incubator and check the connecting wire from sensor box to the controller. Befor turn on the controller and sensor box, keep the power supply +5V, +12V of controller, elements and leads normal. Connect the wire of sensor box to the socket at the back of controller. In working state, at the same time, press key 4 and upper key, it will display the real temperature of isolated sensor at the display area of air sensor, display the real temperature of air flow sensor at the display area of set value, display the battery voltage at the area of skin sensor 1, and display motor value at the area of skin sensor 2( “7.2” means 1440 rpm), and the oxygen concentration indication window can indicate the second oxygen concentration, so it is easy for the repairman to find the problem.

AIR TEMPERATURE SENSOR FAILURE ALARM

No

Good connection?

Check the relative connection of air temperature sensor

Yes

Connect resistance 23166Ωinstead of the Air temperature sensor to socket J3 on sensor prefix board, then open the power supply

the temperature display is 31.0℃ and add the compensation temperature

System alarm?

No

Replace the air temperature sensor

of system set procedure

Yes

On Sensor board

U4-6 is 2.63V?

Check R8, C2

Check U4

FLOW CHART 5.1 AIR TEMPERATURE SENSOR FAILURE

I5

5-15

SERVICE MANUAL FOR INFANT INCUBATOR

``

ISOLATED TEMPERATURE SENSOR FAILURE ALARM

No

Good connection?

Check the relative connection of isolated temperature sensor

Yes

Connect resistance 23166Ωinstead of the Air temperature sensor to socket J2 on sensor prefix board, then open the power supply

the temperature display is 31.0℃ and add the compensation temperature

System alarm?

No

Replace isolated temperature sensor

of system set procedure

Yes

On Sensor board

U7-6 is 2.63V?

Check R11, C4

Check U7

FLOW CHART 5.2 ISOLATED TEMPERATURE SENSOR FAILURE

5-16 I5

SERVICE MANUAL FOR INFANT INCUBATOR

DIFFERENCE FAILURE BETWEEN AIR AND ISOLATED TEMPERATURE ALARM ``

On Sensor prefix board

Voltage of J2-1 and

No

Check the socket J2 and J3 on Air and Isolated temperature sensor

Goodare conection? J3-1 same?

Yes

On Sensor board

Voltage of J1-1

No

Check the connection between sensor prefix board and sensor board

and J1-3 are same?

Yes

On Sensor board

Voltage of U4-6 and

No

U7-6 are same?

Check the connection of R8, R11, C2, C4

Yes Replace U4 and U7

Still alarming?

No

Exit

Yes

Replace sensor board

FLOW CHART 5.3 DIFFERENCE FAILURE ALARM BETWEEN AIR AND ISOLATED TEMPERATURE SENSOR

I5

5-17

SERVICE MANUAL FOR INFANT INCUBATOR

FAN MOTOR SENSOR FAILURE ALARM

``

Good connection?

No

Check the relative connection of fan motor sensor

Yes

Connect 31.0℃ air flow temperature simulation ( equal to 23166Ω) instead of air flow sensor, turn on power supply

The temperature display is 31.0℃ and add the

System alarm?

No

compensation temperature

Replace air flow sensor

of system set procedure Yes

On sensor board

Pin11 of U4 is about

No

Check R26, C12

2.63V?

Check U7

FLOW CHART 5.4 FAN MOTOR SENSOR FAILURE ALARM

5-18 I5

SERVICE MANUAL FOR INFANT INCUBATOR

SKIN TEMPERATURE SENSOR 1 FAILURE ALARM

``

Good connection?

No

Check the relative connection of skin temperature sensor 1

Yes

Connect 31.0℃ skin temperature simulation ( equal to 23166Ω) instead of skin sensor 1, turn on power supply

The temperature display is 31.0℃ and add the

System alarm?

No

compensation temperature

Replace skin temperature seneor 1

of system set procedure Yes

On sensor board

Pin7 of U4 is about

No

Check R9, C3

2.32V?

Check U4

FLOW CHART 5.5 SKIN TEMPERATURE SENSOR 1 FAILURE ALARM

I5

5-19

SERVICE MANUAL FOR INFANT INCUBATOR

OVER-TEMP FAILURE

Yes Is there heat source nearby?

Far away from the heat source

No

Yes Air and isolated temperature

check air and isolated temperature sensor

Sensor is OK? No

Replace Air and Isolated temperature sensor

FLOW CHART 5.6 OVER TEMPERATURE FAILURE

AIR CIRCULATION FAILURE ALARM

Check whether the inlet

Check the fan motor sensor

Or outlet is blocked

Check the air flow condition of inlet and outlet

FLOW CHART 5.7 AIR CIRCULAATION FAILURE

5-20 I5

SERVICE MANUAL FOR INFANT INCUBATOR

FAN MOTOR FAILURE ALARM

Motor rotating

No To sheet 2

Yes

On the power

Pulse at J12-4?

No check the motor fan checking

supply board

Yes

Pulse at U5-2?

On the power

No

check U5

supply board

Yes

On the main

Pulse at U20-16?

No

check the connect condition between

board

power board and main board Yes

On the main board

The wind speed is lower than 1000rpm

Yes Replace the motor

No Replace U20

FLOW CHART 5.8 FAN MOTOR FAILURE ALARM(SHEET 1 OF 2) I5

5-21

SERVICE MANUAL FOR INFANT INCUBATOR

From sheet 1

Whether the power board for motor fan works

No Check the power cord

Yes

On the power supply board

Whether the motor fan can be rotated by manual operation

No Replace the motor

Yes

Replace the capacitor CM

FLOW CHART 5.8 FAN MOTOR FAILURE ALARM(SHEET 2 OF 2)

5-22 I5

SERVICE MANUAL FOR INFANT INCUBATOR

Alarm Fan in the controllor Fault

No Fan in the controller is

Check the fan and the connection

rotating?

Yes

On powerboard

Votage on pin 3 of

No

J2 is about 1.5V?

Adjust the registor regulator VR1 to make the voltage on pin 3 of J2 as 1.5 V

Yes

On powerboard

Voltage on pin 5 of

No

U3 is about 1.8V?

Check resistor R16, R17

Yes

On powerboard

Voltage on pin 2 of

No Check resistor R4, R14

U3 is about 0.5V?

Yes

On powerboard

Output of pin U3-1 is high level?

No Replace U3

Yes To sheet 2

FLOW CHART 5.9 ALARM FAN IN THE CONTROLLOR FAULT (SHEET 1OF 2) I5

5-23

SERVICE MANUAL FOR INFANT INCUBATOR

From sheet 1

On powerboard

Output of pin U3-7

No

is high level?

Repalce U3

Yes

Output of pin U5-8 On powerboard

No

is low level?

Check U5 and the connenction between U5 and U3

Yes

Intput of pin U11-4 On mainboard

is high level?

No

Check the connenction between mainboard and powerboard

Yes

Replace the mainboard

FLOW CHART 5.9 ALARM FAN IN THE CONTROLLOR FAULT (SHEET 2 OF 2)

5-24 I5

SERVICE MANUAL FOR INFANT INCUBATOR

ALARM FAN IN THE SENSOR MODULE FAULT

Fan in the sensor

No

Check the fan and the connection

No

Adjust the registor regulator VR1

module is rotating?

Yes

On sensor board

Votage on pin 2 of J1 is about 1.5V?

to make the voltage on pin 2 of J1 as 1.5 V

Yes

On sensor board

Voltage on pin 5 of

No Check resistor R13, R14

U1 is about 1.8V?

Yes

On sensor board

Voltage on pin 2 of

No Check resistor R6, R12

U1 is about 0.5V?

Yes

On sensor board

Output of pin U1-1

No Replace U1

is high level?

Yes To sheet 2

FLOW CHART 5.10 ALARM FAN IN THE SENSOR MODULE FAULT (SHEET 1 OF 2) I5

5-25

SERVICE MANUAL FOR INFANT INCUBATOR

From sheet 1

On sensor board

Output of pin U1-7

No

Repalce U1

is high level?

Yes

On sensor board

Input of pin U5-46

No

is high level?

Check the connenction between U5 and U1

Yes

On sensor board

Intput of pin U5-47 is high level?

No

Check the connenction between U5 and U1

Yes Replace the senso rboard

FLOW CHART 5.10 ALARM FAN IN THE SENSOR MODULE FAULT (SHEET 2 OF 2)

5-26 I5

SERVICE MANUAL FOR INFANT INCUBATOR

ALARM HUMIDITY SENSOR FAULT

Connection is ok?

No

Check connection humidity sensor

Yes

On prepositive sensor board

Pin J4-10 is within the range of 0.6V~4.5V？

No

Check

the

humidity

sensor and the power Vcc

Yes

On sensor board

The voltage on pin U4-10 is same as pin

No

Check C1, R27, R1

J1-5 ？

Check U4

FLOW CHART 5.11 ALARM HUMIDITY SENSOR FAULT

I5

5-27

SERVICE MANUAL FOR INFANT INCUBATOR

ALARM O2 SENSOR 1 FAULT

Connection is ok?

No

Check connection oxygen sensor 1

Yes Mesure the voltage between pin J6-4 and pin J6-3, and named “O2 Vol.” below

O2 Vol. > 9mV？

No

Replace the O2 sensor 1

Yes Calibration the O2 sensor. (See the second 6 of operator’s manual)

Alarm again？

No

Exit

Yes

The voltage on pin On Sensor board

U11-1 is 0V?

No

Check R28, R29, R32, R34, C6, C40, U11

Yes

To sheet 2

FLOW CHART 5.12 ALARM O2 SENSOR 1 FAULT (Sheet 1of 2) 5-28 I5

SERVICE MANUAL FOR INFANT INCUBATOR

From sheet

On Sensor board

The voltage on pin U4-12 and U11-1 are same?

No

Check U11

Check U4

FLOW CHART 5.12 ALARM O2 SENSOR 1 FAULT (Sheet 2 of 2)

I5

5-29

SERVICE MANUAL FOR INFANT INCUBATOR

ALARM O2 SENSORS ARE DIFFERENT

The difference value of

No

two O2 sensor is>3%?

Check the main MCU (U16 on the mainboard)

Yes Yes Mesure the voltage between pin J6-4 and pin J6-3, and named “O2 Vol.” below

O2 Vol. > 9mV？

No

Replace the O2 sensor 1

Yes Calibration the O2 sensor. (See the section 6 of operator manual)

Alarm again？

No

Exit

Yes

Replace the mainboad and sensor board

FLOW CHART 5.13 ALARM O2 SENSORS ARE DIFFERENT 5-30 I5

SERVICE MANUAL FOR INFANT INCUBATOR

ADC FAILURE ALARM OUTSIDE AUXILIARY MCU A

Voltage on the joint On sensor board

of R18 and R19 is

No

Check R18, R19

2.5V?

Yes

On sensor board

Votage on pin 13

No

of U4 is 2.5V?

Check the connection between U4 and R18, R19

Yes

The connection On sensor board

between U4 and U5 is ok?

No

Connecting coreectly or replace the sensor board

Yes Replace the sensor board

FLOW CHART 5.14 ADC FAILURE ALARM OUTSIDE AUXILIARY MCU A

I5

5-31

SERVICE MANUAL FOR INFANT INCUBATOR

ADC FAILURE ALARM OUTSIDE AUXILIARY MCU B

Voltage on the On sensor board

No

joint of R22 and

Check R22, R23

R23 is 2.5V?

Yes

On sensor board

Votage on pin 9 of

No

U7 is 2.5V?

Check the connection between U7 and R22, R23

Yes

The connection On sensor board

between U7 and

No

Connecting coreectly or replace the sensor board

U9 is ok?

Yes Replace the sensor board

FLOW CHART 5.15 ADC FAILURE ALARM OUTSIDE AUXILIARY MCU B

5-32 I5

SERVICE MANUAL FOR INFANT INCUBATOR

ALARM TEMPERATURE HEATER SYSTEM FAULT

Is heater On powerboard

No Connect well

connected with pin 1 and pin 4 of J9 ?

Yes Switch off the power of incubator, and disconnect the heater from the controller, then measure the resistance value of the heater.

The resistance

No

value of heater is

Replace the heater

abour 165 Ohms?

Yes Disconnect the sensor box and the mainboard, connect pin 11 of J11 and pin 7 of J13 on powerboard to VCC power, and then switch on the controller.

Voltage on Q1, Q3 On powerboard

are about 0.7V?

No

Check R1, Q1, R3, R8, Q3

Yes To sheet 2

FLOW CHART 5.16 ALARM TEMPERATURE HEATER SYSTEM FAULT (SHEET 1OF 3) I5

5-33

SERVICE MANUAL FOR INFANT INCUBATOR

From sheet 1

Voltage on control On powerboard

No

Replace Q1, Q3

port of relay S1, K1 is about 12V?

Yes Cnnect pin 11 of J11 and pin 7 of J13 on powerboard to Gnd power instead, and then switch on the controller.

Voltage on B port of On powerboard

audion Q1, Q3 is about

Yes

Check R1, Q1, R3, R8, Q3

0.7 V?

No

Voltage on control On powerboard

Yes

port of relay S1, K1

Replace Q1, Q3

is about 12V?

No Disconnect these connections for testing, and connect the mainbaord and the sensor box, then switch on the controller.

To sheet 3

FLOW CHART 5.16 ALARM TEMPERATURE HEATER SYSTEM FAULT (SHEET 2 OF 3)

5-34 I5

SERVICE MANUAL FOR INFANT INCUBATOR

From sheet 2

Alarm again?

No

Exit

Yes Replce the relay S1 and K1

Alarm again?

No Exit

Yes Check the connection between powerboard and mainboard, or replace the mainboard.

Alarm again?

No

Exit

Yes Check the connection between powerboard and sensor board, or replace the sensor board.

FLOW CHART 5.16 ALARM TEMPERATURE HEATER SYSTEM FAULT (SHEET 3 OF 3)

I5

5-35

SERVICE MANUAL FOR INFANT INCUBATOR

ALARM HUMIDITY HEATER SYSTEM FAULT

Is heater On powerboard

No Connect well

connected with pin 2 and pin 5 of J9 ?

Yes Switch off the power of incubator, and disconnect the heater from the controller, then measure the resistance value of the heater.

The resistance

No

value of heater is

replace the humidity heater.

abour 360 Ohms?

Yes Disconnect the sensor board and the main board, connect pin 12 of J11 on powerboard to VCC power, and then switch on the controller.

Voltage on B port On powerboard

of audion Q2 is

No Check R2, Q2

about 0.7V?

Yes To sheet 2

FLOW CHART 5.17 ALARM HUMIDITY HEATER SYSTEM FAULT (SHEET 1OF 3) 5-36 I5

SERVICE MANUAL FOR INFANT INCUBATOR

From sheet 1

On powerboard

Voltage on control

No

port of relay S2 is

Replace Q2

about 12V?

Yes Cnnect pin 12 of J11 on powerboard to Gnd power instead, and then switch on the controller.

Voltage on B port of On powerboard

Yes Check R2, Q2

audion Q2 is about 0.7 V?

No

Voltage on control On powerboard

Yes

port of relay S2 is

Replace Q2

about 12V?

No Disconnect these connections for testing, and connect the mainbaord and the sensor box, then switch on the controller.

To sheet 3

FLOW CHART 5.17 ALARM HUMIDITY HEATER SYSTEM FAULT (SHEET 2 OF 3)

I5

5-37

SERVICE MANUAL FOR INFANT INCUBATOR

From sheet 2

Alarm again?

No Exit

Yes Replce the relay S2

Alarm again?

No

Exit

Yes Check the connection between powerboard and mainboard, or replace the mainboard.

FLOW CHART 5.17 ALARM HUMIDITY HEATER SYSTEM FAULT (SHEET 3 OF 3)

5-38 I5

SERVICE MANUAL FOR INFANT INCUBATOR

POWER FAILURE ALARM

The power of the

No Check the power

controller is ok?

Yes

On DC powerboard

The fuse F3 is ok?

No

Replace the fuse F3

Yes

On DC powerboard

The output voltage on

No

second part of the

Check the fuse F1, F2, and the transfromer

transform is correct?

Yes

On DC powerboard

The output voltage

No

Check U2, U3, C2, C4, C5, C7, C8, C10,

on J1 is correct?

C11, C12 Yes

Cross point of R10, On main board

R25 is +2.5V?

No

Check R10, R25

Yes To sheet 2

FLOW CHART 5.18 POWER FAILURE ALARM (SHEET 1OF 2) I5

5-39

SERVICE MANUAL FOR INFANT INCUBATOR

From sheet 1

On power board

Crosspoint of R11, R26 is 2.53V?

No Replace R11, R26

Yes

Crosspoint of On power board

No Replace R24, R27

R24, R27 is 2.1V?

Yes

On power board

Pins7, 1 of U4 is high level?

No Replace U4

Yes

On power board

Pin 6 of U5 is

No Replace U5

low level?

Yes

On main board

Pin6 of U11 is high level?

No

Check connection between power

board

and

main

board Yes Replace main board

FLOW CHART 5.18 POWER FAILURE ALARM (SHEET 2 OF 2)

5-40 I5

SERVICE MANUAL FOR INFANT INCUBATOR

SECTION 6 MAIN PARTS LIST AND PARTS NUMBER 6.1 GENERAL This section provides parts lists for infant incubator. Part numbers of accessories are provided below:

05

03 04 02

01

FIGURE 6.1 PARTS LOCATION DIAGRAM, THE WHOLE DEVICE ASSEMBLY TABLE 6.1 REPLACEMENT PARTS LIST FOR WHOLE SPARE PARTS ITEM No.

DESCRIPTION

1

VHA Basinet

13.10.000.00

2

Controller

13.07.000.00

3

Hood

13.02.001.01S

4

Base

13.04.008.02S

5

I. V. Pole Groupware

13.11.001.00S 6-1

I5

PART NUMBER

SERVICE MANUAL FOR INFANT INCUBATOR

FIGURE 6.1 PARTS LOCATION DIAGRAM, HOOD ASSEMBLY (SHEET 1-2)

6-2 I5

SERVICE MANUAL FOR INFANT INCUBATOR

FIGURE 6.1 PARTS LOCATION DIAGRAM, HOOD ASSEMBLY (SHEET 2-2)

6-3 I5

SERVICE MANUAL FOR INFANT INCUBATOR

TABLE 6.2 HOOD ASSEMBLY REPLACEMENT PARTS LIST ITEM No.

DESCRIPTION

PART NUMBER

1

Hood

13.02.002.00

2

Access panel

13.02.006.00

3

Window touch head

05.02.013.00

4

Latch seat

05.02.015.00

5

Cross groove oval head bolt M3×10

86.44.148.00

6

Bolt cover M3

05.02.046.00

7

Clamp

13.02.008.00

8

Iron scrap

13.02.009.00

9

Spring

13.02.010.00

10

Cross groove oval head bolt M3×14

86.44.150.00

11

Nut M3

86.44.334.00

12

Soft port for I.V. Pole

13.02.011.00

13

Stopper

12.02.046.00

14

B type round pin3×25

86.44.471.00

15

Left gemel for front door

13.02.012.00

16

Cross groove oval head bolt M5×16

86.44.184.00

17

Flat washer 5

86.44.444.00

18

Spring washer 5

86.44.418.00

19

Cross groove oval head bolt M3×12

86.44.149.00

20

Right pad (I)

13.02.013.00

21

Left pad (II)

13.02.014.00

22

Back Left gemel (I)

13.02.015.00

23

Back Left gemel (II)

13.02.018.00

24

Front right gemel (I)

13.02.017.00

25

Front right gemel (II)

13.02.019.00

26

Front left gemel (II)

13.02.020.00

27

Position limit pole

13.02.021.00

28

Cross groove countersunkhead bolt M3×8

86.44.216.00

29

Inner front panel

13.02.022.00

30

Heat insulation board for Inner front panel

13.02.035.00

31

Cross groove head bolt ST2.9×9.5

86.44.268.00 6-4 I5

SERVICE MANUAL FOR INFANT INCUBATOR

TABLE 6.2 HOOD ASSEMBLY REPLACEMENT PARTS LIST (CONTINUE) ITEM No.

DESCRIPTION

32

Fix fittings for inner wall

13.02.026.00

33

Special bolt

13.02.034.00

34

Right pad (II)

13.02.043.00

35

Back right gemel (I)

13.02.028.00

36

Back right gemel (II)

13.02.029.00

37

Fastener

13.02.030.00

38

Shield cap

13.02.031.00

39

Door panel sheath

12.02.038.00

40

Shield sheath

13.02.042.00

41

Cross groove head bolt ST2.9×9.5

86.44.256.00

42

Door latch

12.02.040.00

43

Spring （Ⅳ）

12.02.039.00

44

Latch handle

05.02.035.01

45

Spring （I）

05.02.034.00

46

Roller latch sheath

05.02.033.00

47

Latch stopper

05.02.032.00

48

O type seal circleφ12×1.9

86.44.547.00

49

Access door’s cuff

05.02.029.00

50

Rubber seal for window（I）

13.02.032.01

51

Rubber seal for window（II）

13.02.033.02

52

Torsional Spring

05.02.027.00

53

Window’s shaft

05.02.026.00

54

Bolt cover M5

05.02.047.00

55

Moving assembly

05.02.022.00

56

Fixing circle

05.02.023.00

57

Set assembly

05.02.024.00

58

Iris door’s cuff

05.02.025.00

59

Cross groove oblate head bolt 5×16

86.44.290.00

60

Locating bush

13.02.038.00

61

O type seal φ6.3×1.8

86.44.509.00 6-5

I5

PART NUMBER

SERVICE MANUAL FOR INFANT INCUBATOR

TABLE 6.2 HOOD ASSEMBLY REPLACEMENT PARTS LIST (CONTINUE) ITEM No.

DESCRIPTION

PART NUMBER

62

Hexagon nutM5

86.44.338.00

63

Special bolt （II）

13.02.039.00

64

Rotating gasket

13.02.040.00

65

Gemel blank cap

13.02.041.00

66

Lock fastener

05.02.040.01

67

Latch stopper

05.02.043.00

68

Cross groove countersunk bolt 3×25

86.44.212.00

69

Lock supporting block

05.02.042.00

70

Locked base

05.02.044.00

71

Flat washer 3

86.44.440.00

72

Door lock shaft

05.02.041.00

73

Transition pad

13.02.044.00

74

Axle sleeve

05.02.045.00

75

Thread locking agent

86.61.119.00

6-6 I5

SERVICE MANUAL FOR INFANT INCUBATOR

FIGURE 6.2 PARTS LOCATION DIAGRAM, BASE ASSEMBLY (SHEET 1-2)

6-7 I5

SERVICE MANUAL FOR INFANT INCUBATOR

FIGURE 6.2 PARTS LOCATION DIAGRAM, BASE ASSEMBLY (SHEET 2-2) 6-8 I5

SERVICE MANUAL FOR INFANT INCUBATOR

TABLE 6.3 BASE ASSEMBLY REPLACEMENT PARTS LIST ITEM No.

DESCRIPTION

1

Handle

13.04.009.00

2

Cross groove head bolt M5×16

86.44.184.00

3

Spring washer 5

86.44.418.00

4

Flat washer 5

86.44.444.00

5

Inner hexagon column bolt M6×20

86.44.099.00

6

Spring washer 6

86.44.420.00

7

Flat washer 6

86.44.446.00

8

Catheter

13.03.001.00

9

Water reservoir

10

Upper shell A

13.04.011.00

11

Bottom shell

13.04.015.01

12

Air-oxygen seperation controlling device

13

Air filter

13.04.018.00

14

Spring washer 4

86.44.414.00

15

Flat washer 4

86.44.442.00

16

Cross groove head bolt M4×20

86.44.167.00

17

Cover for box

13.04.021.00

18

Flat washer 3

86.44.440.00

19

Spring washer 3

86.44.412.00

20

Cross groove oval head bolt M3×10

86.44.271.00

21

Protection mantle

12.07.024.00

22

Checking board

23

Cover for Protection mantle

12.07.025.00

24

Raster plate

12.07.026.00

25

Notch clamp bolt M3×5

86.44.130.00

26

Cross groove head bolt ST2.9×9.5

86.44.256.00

13.05.001.00S

13.16.007.00S

12.07.084.00S

6-9 I5

PART NUMBER

SERVICE MANUAL FOR INFANT INCUBATOR

TABLE 6.3 BASE ASSEMBLY REPLACEMENT PARTS LIST (CONTINUE) ITEM No.

DESCRIPTION

PART NUMBER

27

Cross groove head bolt M3×10

86.44.148.00

28

Two-Segment Adjustable Wiring stator TS-0607

86.45.018.00

29

Label for warning

13.04.081.00

30

Start-up CBB61-500V-0.27uF±5%

86.51.032.00

31

Fixing pin for capacitor

12.07.048.00

32

Left shaft

13.04.025.00

33

Right tilt machanism

34

Cross groove countersunk head bolt M5×8

86.44.235.00

35

Cross groove head bolt M4×10

86.44.161.00

36

Charles clip CC-3

86.45.005.00

37

Impeller groupware

38

Shell plug

39

Sensor connecting wire

40

Cross groove oval head bolt M3×16

86.44.274.00

41

Hex nut M3

86.44.334.00

42

Motor 90YY2

86.60.002.00

43

Fixed circle for motor

44

Cross groove head bolt M4×12

86.44.162.00

45

Cross groove countersunk head bolt M3×20

86.44.211.00

46

Heater group

47

Pad

13.04.053.00

48

Heat insulation board

13.04.071.00

49

Heat dissipation slice

13.04.054.00

50

Cover

13.04.055.00

51

Cover board

13.04.056.00

52

Lock groupware

53

Non-shedding bolt

13.04.072.00

54

O type seal circleφ3.75×1.8

86.44.507.00

13.04.026.00S

12.07.077.00S 12.05.004.00 13.04.044.00S

13.04.046.01S

13.04.047.00S

13.04.090.00S

6-10 I5

SERVICE MANUAL FOR INFANT INCUBATOR

TABLE 6.3 BASE ASSEMBLY REPLACEMENT PARTS LIST (CONTINUE） ITEM No.

DESCRIPTION

55

Self-control oxygen inlet groupware

13.16.032.01S

56

Cover groupware

13.04.057.00S

57

Right tilt machanism

13.04.059.00S

58

Cross groove head bolt M5×8

59

Left shaft groupware

60

Handwheel

13.04.067.00

61

Cover cap

13.04.069.00

62

Drawer group

63

Seal of humidifier rim

13.04.023.00

64

Press board for seal

13.04.024.00

65

Cross groove oval head bolt M3×6

86.44.158.00

66

Heat dissipation slice label

13.04.079.00

67

Label for high-temp warning

13.04.070.00

68

Air flow sensor

13.07.082.00

69

Earthed lable

12.07.047.00

70

Cross groove head bolt M3×8

86.44.159.00

71

Warning label

12.07.029.00

72

Motor absorbing pad

13.04.073.00

73

Upper shell B

13.04.074.00

74

Handle

13.04.075.00

75

Seal for shell

13.04.076.00

76

Plastic washer

13.07.008.00

77

Cross groove countersunk head bolt M3×8

86.44.216.00

78

Earthed clamp

13.04.082.00

79

Cross groove countersunk head bolt M3×6

86.44.215.00

80

Cross groove countersunk head bolt M4×16

86.44.220.00

81

Connecting column

13.04.083.00

86.44.195.00 13.04.064.00S

13.05.009.00S

6-11 I5

PART NUMBER

SERVICE MANUAL FOR INFANT INCUBATOR

FIGURE 6.4 PARTS LOCATION DIAGRAM, IV POLE ASSEMBLY TABLE 6.4 I.V. POLE ASSEMBLY REPLACEMENT PARTS LIST ITEM No.

DESCRIPTION

PART NUMBER

1

Flat washer 8

86.44.448.00

2

Spring washer 8

86.44.423.00

3

Inner hexagon colume bolt M8×40

86.44.118.00

4

Seat for the monitor shelf

13.12.012.00

5

Fixing seat

13.11.013.00

6

Support pole for I.V. Pole

13.04.008.00

7

Tray

06.11.005.00

8

Spring washer 6

86.44.420.00

9

Flat washer 6

86.44.446.00

10

Inner hexagon colume bolt M6×20

86.44.099.00

11

I.V.Pole

13.11.001.00S

12

Monitor shelf

13.12.001.00S

13

Inner hexagon colume bolt M5×30

86.44.089.00

14

The support pole for monitoring shelf

13.12.005.00

15

Clamp seat

13.12.009.00

16

Cross groove head bolt M6×16

86.44.201.00

17

Inner hexagon colume bolt M8×35

86.44.116.00

6-12 I5

SERVICE MANUAL FOR INFANT INCUBATOR

40

FIGURE 6.5 PARTS LOCATION DIAGRAM, LIFT STAND 6-13 I5

SERVICE MANUAL FOR INFANT INCUBATOR

TABLE 6.5 LIFT STAND REPLACEMENT PARTS LIST ITEM No.

DESCRIPTION

PART NUMBER

1

Left drawer

13.10.042.00S

2

Weight warning lableA

13.10.015.00

3

Outer serrate clamp washer 6

86.44.398.00

4

Inner hexagon bolt M6×25

86.44.100.00

5

Flat washer 6

86.44.445.00

6

Spring washer 5

86.44.418.00

7

Flat washer 5

86.44.444.00

8

Outer serrate clamp washer 5

86.44.397.00

9

Cross groove head bolt M5×12

86.44.180.00

10

Connection board

13.10.016.00

11

Protectin mantle goupware

13.10.017.00

12

Weight warning lable B

13.10.019.00

13

Right drawer

14

Winding frame

13.10.022.00

15

Cross groove head bolt M4×10

86.44.161.00

16

Spring washer 4

86.44.414.00

17

Flat washer 4

86.44.442.00

18

Outer serrate clamp washer 4

86.44.395.00

19

power cable

86.46.013.00

20

Protective bottom shell

13.10.023.00

21

Lift support

22

Spring washer 12

13.10.052.00S

13.10.060.00S 86.44.404.00

6-14 I5

SERVICE MANUAL FOR INFANT INCUBATOR

TABLE 6.5 LIFT STAND REPLACEMENT PARTS LIST (CONTINUE） ITEM No.

DESCRIPTION

23

Flat washer 12

86.44.431.00

24

Flat Axletree wheel

86.52.002.00

25

Inner hexagon bolt M8×25

86.44.112.00

26

Spring washer 8

86.44.422.00

27

Flat washer 8

86.44.447.00

28

Switch rack groupware

29

Hex nut M3

86.44.334.00

30

Spring washer 3

86.44.412.00

31

Blade terminal OT1.5-3

86.55.129.00

32

Earthed label

12.07.047.00

33

Stand

13.10.038.00

34

Adjustable wiring clamp

86.45.032.00

35

Power cable for the controller

86.46.002.00

36

Weight warning lable C

13.10.040.00

37

Flat Axletree wheel with brakes

86.52.006.00

38

Outer serrate clamp washer 8

86.44.399.00

39

Spring washer 6

86.44.419.00

40

Power cable

86.46.012.00

13.10.058.00S

6-15 I5

PART NUMBER

SERVICE MANUAL FOR INFANT INCUBATOR

FIGURE 6.6 PARTS LOCATION DIAGRAM1, CONTROLLER ASSEMBLY TABLE 6.6 CONTROLLER ASSEMBLY REPLACEMENT PARTS LIST 1 ITEM No.

DESCRIPTION

PART NUMBER

1

Middle frame groupware

13.07.037.00S

2

Groupware for indicating frame

13.07.053.00S

3

Electric nameplate

13.07.032.00

4

Cross groove countersunk head bolt M3×8

86.44.216.00

5

Sensor box

13.07.059.01S

6

RS232 label

13.07.036.00

7

Earthed label

12.07.047.00

8

Skin sensor

13.07.088.00

6-16 I5

SERVICE MANUAL FOR INFANT INCUBATOR

FIGURE 6.7 PARTS LOCATION DIAGRAM 2, CONTROLLER ASSEMBLY

6-17 I5

SERVICE MANUAL FOR INFANT INCUBATOR

TABLE 6.7 CONTROLLER ASSEMBLY REPLACEMENT PARTS LIST 2 ITEM No.

DESCRIPTION

PART NUMBER

1

Shell

13.07.001.00

2

Cross groove countersunk head bolt M3×8

86.44.216.00

3

Groupware for power socket

4

Earthed label

12.07.047.00

5

Flat washer 3

86.44.440.00

6

Spring washer 3

86.44.412.00

7

Cross groove head bolt M3×6

86.44.158.00

8

Wiring terminal

86.55.145.00

9

Hex nut M3

86.44.334.00

10

Label for switch

13.07.002.00

11

Power module

13.07.044.00S

12

Cross groove countersunk head bolt M3×5

86.44.214.00

13

Cross groove countersunk head bolt M3×4

86.44.519.00

14

Ferrite

86.60.082.00

15

Groupware for power socket

12.07.089.00S

16

Groupware for power switch

13.07.051.00S

17

Cross groove countersunk head bolt M3×16

86.44.210.00

18

Fan cover

13.07.037.00

19

Fan cushion

13.07.038.00

20

Axial-flow fan groupware

13.07.052.00S

13.07.043.00S

6-18 I5

SERVICE MANUAL FOR INFANT INCUBATOR

FIGURE 6.5 PARTS LOCATION DIAGRAM 3, CONTROLLER ASSEMBLY TABLE 6.5 CONTROLLER ASSEMBLY REPLACEMENT PARTS LIST 3 ITEM No.

DESCRIPTION

1

Groupware for front panel

13.07.010.00

2

LCD protectibve board

13.07.011.00

3

Main board

13.07.058.00

4

Front panel

13.07.014.00

5

Cross groove countersunk head bolt M3×8

86.44.216.00

6

Hexagon Isolated Roller S6×16

13.07.016.00

7

Nut cover

13.07.006.00

8

Cross groove pan head bolt M3×10

86.44.148.00

9

Hex bolt M3

86.44.334.00

10

Spring washer 3

86.44.412.00

11

Flat washer 3

86.44.440.00

12

LCD indication board

86.58.051.00

13

Cross groove countersunk head bolt M3×10

86.44.207.00

6-19 I5

PART NUMBER

SERVICE MANUAL FOR INFANT INCUBATOR

FIGURE 6.6 PARTS LOCATION DIAGRAM 4, CONTROLLER ASSEMBLY

6-20 I5

SERVICE MANUAL FOR INFANT INCUBATOR

TABLE 6.6 CONTROLLER ASSEMBLY REPLACEMENT PARTS LIST 4 ITEM No.

DESCRIPTION

1

Bottom shell for sensor

13.07.024.00

2

Top shell for sensor

13.07.025.00

3

Socket for skin sensor 2

4

Label for sensor box

13.07.021.00

5

Screw stopper

13.07.027.00

6

Cross groove countersunk head bolt M3×8

86.44.216.00

7

Sensor cover board

13.07.026.00

8

Cross groove head bolt M3×18

86.44.152.00

9

Label for skin temperature

13.07.019.00

10

Socket for skin sensor 1

13.07.066.00S

11

Position limit switch

13.07.068.00S

12

Groupware for prepositive board of sensor

13.07.062.00S

13

LED reflector shell

13.07.028.00

14

Groupware for sensor board

13.07.060.00

15

Wire clip 6P- 4

86.45.002.00

16

Wiring for sensor

13.07.061.00S

17

Socket for baby scale

13.07.067.00S

18

Label for baby scale

13.07.065.00S

13.07.030.00

6-21 I5

PART NUMBER

SERVICE MANUAL FOR YP-2000 INCUBATOR

SECTION 7 DIAGRAMS 7.1 GENERAL The section provides schematic and wiring diagrams for Infant Incubator and circuit diagrams, connection diagram for temperature controller boards.

S：Power switch for controller

G：Internal battery GP17R8H Ni-MH8.4V/170mAh

X1：Powr input socket for controller

F：DC12V axial-flow fan

X2,X4：Wiring terminal

T：Transformer R20

A1：Power board

A2: Main board

A3: DC power board WIRING DIAGRAM OF TEMPERATURE CONTROLLER I5

7-1

D1

XZ33

D2 XZ29

X3

XZ16

XZ17

XZ14

2(N)

1(L)

XZ27

XZ28 1(L)

XZ24 XZ26

XZ29

SB2

1

2

3

X2

XZ15

XZ13 XZ17

XZ12 XZ16

XZ25 XZ27

2(N)

XZ26

2

SB1

3

1

2 XZ2

XZ12 XZ13 XZ14 XZ15

XZ8-1

2 XZ1 4

1

F3

XZ2 2 XZ24

1

XZ9

XZ8-2

1

3

XZ25

2

XZ3

1

X1

L

XZ1

F1

CT

G

XZ32

1

T

N

XZ4

XZ8-1 XZ6 2

1 3 4

1

XZ11

XZ10

S1

XZ30

F2

1

XZ5

1

XZ4 1

D

M

1

4

XZ5

XZ9 XZ7

XZ18 XZ19 XZ20 XZ21

XZ18 XZ22

XZ19 XZ23

XZ20

2

SB3

3

1

SB4

1

2

3

XZ21

XZ23

XZ22

SERVICE MANUAL FOR YP-2000 INCUBATOR

3

3

SB1～SB4: Jiggle switch

S1: Power switch

T: Transformer

F3: 800mAL/250V type T fuse

M: Lift motor

F1, F2: 6.3AH/250V type F fuse

CT: Power supplying plug

X1,X2,X3: Socket

WIRING DIAGRAM OF LIFT STAND

7-2

I5

XZ31

XZ33

SERVICE MANUAL FOR YP-2000 INCUBATOR

K1: Temperature control switch KSD-II-85 P1~P4:φ6.3retagular plug

K2: Temperature control switch KSD-II-85 M:Motor for controller

J1:Plug MC100-50806

J2:Plug MC420-35010

J5:Plug YT-005-4( To Motor) J8:Plug YT-005-5(To humidifier )

J6:Plug YT-005-2( To Steamer) J10,J10’:Plug socket JD28050-3P, JD28050-3R

K3: Minor switch Z15G1305 (Applied for reservior location detecting) Start-up capacitance：0.27μ/400V J7:Plug YT-005-3( To O2 Sensor ) J3,J3’:Plug socket JD28050-6P, JD28050-6R

INCUBATOR WIRE CONNECTING DIAGRAM

7-3

SERVICE MANUAL FOR YP-2000 INCUBATOR

DC POWER BOARD ASSEMBLY DIAGRAM 1

7-4 I5

SERVICE MANUAL FOR YP-2000 INCUBATOR

DC POWER BOARD ASSEMBLY DIAGRAM 2

7-5

SERVICE MANUAL FOR YP-2000 INCUBATOR

DC POWER BOARD PARTS LIST No.

SYMBOL

NAME AND SPECIFICATION

QUANTITY

1

C1～C5,C12

Capacitor 0805-0.1uF±20%

6

2

C6～C8

Capacitor CD11-25V-470uF±20%

3

3

C9～C11

Capacitor CD11-16V-2200uF±20%

3

4

B1,B2

Rectification bridge GBU10005

2

5

U1,U2

Integrated circuit MC7805CT

2

6

U3

Integrated circuit MC7812CT

1

Radiator GHSI-45

3

7 8

F1,F2,F3

Seat for fuse 520101

3

9

F1

Fuse T1AL/250V

1

10

F2

Fuse T800mAL/250V

1

11

F3

Fuse T160mAL/250V

1

12

T1

Transformer R20

1

13

J1

Socket XY4-6S

1

14

J2,J4

Socket XY4-3S

1

15

J3

Socket XY4-4S

1

7-6 I5

7-7

3PIN

J4

PRI.

3 2 1 T160mA

F3

SEC.

TRANSFORMER

3 2 1

4 3 2 1

3PIN TRANS-IN

J2

4PIN TRANS-OUT

J3

4

3

T800mA/250V

F2

T1A/250V

F1

-

+

4

3

-

+

GBU10005

AC

AC

B2

GBU10005

AC

AC

B1

2

1

2

1

Va

C12 104

C2 104

C1 104

IN

U3 MC7812CT

Vin

U2 MC7805CT

Vin

+12 VCC VLCD+

1 2 3 4 5 6

C8 Comment: 470uF

1

C7 470uF

1

C6 470uF

1

U1 MC7805CT

GND 2 GND 2 GND

ELEMENTS DIAGRAM FOR DC POWER BOARD 6PIN

J1

2

Va

OUT

+5V

+5V

3

3

3

C11 2200uF

+12

C10 2200uF

VCC

C9 2200uF

C5 104

C4 104

C3 104

VLCD+

SERVICE MANUAL FOR YP-2000 INCUBATOR

SERVICE MANUAL FOR YP-2000 INCUBATOR

POWER BOARD ASSEMBLY DIAGRAM 1

7-8 I5

SERVICE MANUAL FOR YP-2000 INCUBATOR

POWER BOARD ASSEMBLY DIAGRAM 2

7-9

SERVICE MANUAL FOR YP-2000 INCUBATOR

POWER BOARD PARTS LIST No.

SYMBOL

NAME AND SPECIFICATION

QUANTITY

1

R1～R3,R6,R7,R9,R35～R38, R43

Resistor 0805-1KΩ±5%

11

2

R4

Resistor 0805-1KΩ±1%

1

3

R5

Resistor 0805-2KΩ±5%

1

4

R8,R12,R13,R18

Resistor 0805-10KΩ±5%

4

5

R10,R25,R26

Resistor 0805-2KΩ±1%

3

6

R11

Resistor 0805-7.5KΩ±1%

1

7

R14

Resistor 0805-9.1KΩ±1%

1

8

R15,R41

Resistor 0805-100KΩ±1%

2

9

R16

Resistor 0805-33KΩ±1%

1

10

R17

Resistor 0805-18KΩ±1%

1

11

R19

Resistor 0805-100Ω±5%

1

12

R20~R23, R44

Resistor 0805-10KΩ±5%

5

13

R24

Resistor 0805-3KΩ±1%

1

14

R27

Resistor 0805-2.2KΩ±1%

1

15

R28

Resistor 0805-10KΩ±1%

1

16

R29～R34

Resistor 0805-200Ω±5%

6

17

R39

Resistor 0805-510Ω±5%

1

18

R40

Resistor 0805-30KΩ±1%

1

19

R42

Resistor 0805-499KΩ±5%

1

20

VR1

Potentiometer 3296-100Ω

1

21

C1~C3,C10

Capacitor SMD-25V-150uF±20%

4

22

C4,C5,C14,C15,C18,C24,C25,C33

Capacitor 0805-0.1uF±20%

8

23

C6~C9,C11,C32

Capacitor 0805-0.01uF±20%

6

24

C19,C20

Capacitor 0805-2200pF±20%

2

25

C21,C22,C23

Capacitor CA45B-10uF±20%

3

26

C28～C31

Capacitor CA45A-25V-1uF±20%

4

27

C34

Capacitor 1210-25V-10uF±20%

1

28

D1～D7

Diode SM4007-D0214

7

29

D8

Diode HZ5.6BP

1

30

D10

Diode 1N5339B

1

31

D11

Diode HZ11B1

1

32

Q1～Q5,Q10,Q11

Diode MMBT3904LT1

7

7-10 I5

SERVICE MANUAL FOR YP-2000 INCUBATOR

POWER BOARD PARTS LIST (Continue) No.

SYMBOL

NAME AND SPECIFICATION

QUANTITY

33

Q6

Diode MMBT3906LT1

1

34

Q7

Diode 2SD667

1

35

U1,U2

Integrated circuit MC7805BDTG

2

36

U3,U4,U9,U15

Integrated circuit LM358D

4

37

U5

Integrated circuit SN74AHCT00D

1

38

U8

Integrated circuit 4N35

1

39

U10,U11

Integrated circuit K1010

2

40

U12

Integrated circuit MAX232CSE

1

41

U13

Integrated circuit KP1020

1

42

U14

Integrated circuit MAX489CSD

1

43

U16

Integrated circuit SN74LVC1G3157DBVR

1

44

J1

Socket ME040-50803

1

45

J2

Socket XY2.5-3S

1

46

J3

Socket XY4-3S

1

47

J4

Socket XY2.5-2S

1

48

J5

Socket XY4-2S

1

49

J6

Socket XY2.5-4S

1

50

J7

Socket ME040-50802

1

51

J8

Socket XY4-6S

1

52

J9

Socket ME040-50806

1

53

J10

Buzzer EFM230

1

54

J11

Socket DC-2-26S

1

55

J12

Socket ME040-35010

1

56

J13,J14

Socket DD09SZG

2

57

T1,T2

Inductor TVA1421-01

2

58

DC2

DC-DC F0505S-1W

1

59

K1

Solid relay JW1aFSN-DC12V

1

60

S1,S2

Solid relay CX240D5

2

61

F1,F2

Fuse F 6.3AH/250V

2

62

F3,F4

Fuse 1812L050-C

2

7-11

1 2 3

3 2 1

VCC

VCC

VCC

VCC

VCC

6 5 4 3 2 1

RENB

200

R33

WENB

200

R32

TOTXD2

200

R30

1K

R35

Vout-

Vout+

KP1020

U13B

KP1020

U13A

K1010

U11

K1010

U10

H0505S-1W

GND

VIN

DC2

TORXD2

2

1

Bell

+5

200

R29

5

7

8050

Q4

R39 510

JW1aFSN

K1B

1K

R38

1K

R37

1K

R36

200

+5D

+5D

+5D

+5D

R34 200

+5D

ctr_bell

D8 HZ5.6BP

R31

1K

R6

C31 1uF

INDUCTOR2

T2

INDUCTOR2

T1

6

5

2 1

2 1

C28 1uF

LM358

+ -

+ -

7

1 3 4 5 T1OUT T2OUT

VEE

2

5

14 13 12 11 10 9 8

6

13 8

14 7

1uF

C30

1uF

A B Z Y

+5D

+5D

8050

Q1

8050

Q3

0.1uF

C25

Q11 8050

C24 0.1uF

ctr_hum

ctr_ssr

ctr_relay

cool fan

+12

DB9

J14

3 2 1

+12

R4 1K

R17 18K

R16 33K

VR1 100

R14 9.1K

VCC

C23 10uF3

RS 232 interface

1 6 2 7 3 8 4 9 5

3PIN

J2

humheater_state

VCC

1K

R2

R21 10K

8050

1K

R1

1K

R3

Q10 8050

Q2

C29 +5D

C22 10uF

1K

R9

2 16

+5D

VCC NC A B Z Y NC

SN74LVC1G3157

B1VCC B2 A S GND

U6

MAX489CSD 3 1 4 6

VDD VCC

1N4007

D2 1N4007

+12

D1 1N4007

+12

1N4007

D7

MAX232CSE

GND

C21 10uF

JW1aFSN D3

K1A

1N4007

R1OUT R1IN R2OUT R2IN

T1IN T2IN

U14 1 NC 2 RO 3 /RE 4 DE 5 DI 6 GND 7 GND

15

12 9

C1+ C1C2+ C2-

U12

3 4

3 4

+12

LM358

11 10

2200pF

10K C20

R23

U9B

RP1A40D5

~ ~

S2

RP1A40D5

~ ~

S1

2200pF

10K C19

R22

1K

R7

2

6PIN/empty

J10

CON6

1 2 3 4 5 6

AC-L

power switch

J7

AC-N

D4

1

6

5

2

3

R26 2K

R25 2K

LM358

LM358 U3B

U3A

R11 7.5K tvb

+12

C14 0.1uF

VCC

7

1

R27 2.2K

R24 3K tvc

+5

+12

1N4002

1N4002 D6

D5

R10 2K tva

VCC

bat+

PTC 500mA

F3

U5C 9

6

+5

LM358

C15 0.1uF

ctr_bat

SN74AHC00D

8

7

1

10K

R12

fan_state

0.1uF

LM358 U4B

U4A

ctr_o2 R5 2K

5

tvc

2

tva

tvc

3

+5

C5

U1 MC7805BDTG 1 3 IN OUT C2 GND 150uF

tvb

10

J8 6PIN

U2 MC7805BDTG 1 3 IN OUT C1 GND 150uF

+12 VCC VLCD+

4

3-6 Motor

2-5 Steamer

1-4 Heater

J9

T6.3A

T6.3A F2

F1

1

heater_state

VCC R20 10K

4

AC POWER OUTPUT For DC Powerbaord

3PIN

J3

3PIN

J1

2

3

0.1uF U9A

C18

6 5 4 3 2 1

AC POWER INPUT

+12

4N35

R13 10K

Q5 8050

R18 10K

VCC

100

R19

Q6 8550

+12

VCC

R28 10K

R40 30K

bat+

C34 10uF

bat_voltage C32 0.01uF

2

1 3

1K

R43

10K

R8

VCC

R44 10K

C7 0.01uF

SN74AHC00D

U5A

tank_state

BATTERY

J4

+5

Q7 2SD667

100K

R15

+12

R45 R42 1M 499K

PTC 500mA

F4

6

5

J6 battery switch

6 5 4

power_state

D10 1N5339B

D11 HZ11B1

LM358

U15B

0.1uF

C33

7

anode base cathode collector n.c. emitter

U8

6

C4 0.1uF

SN74AHCT00

water_state

1 2 3

4

+5

U5B

C3 150uF

5

+5A

C10 150uF

To DC Powerboard

sen_airflow

+12

+12

DB9

J13

J12

To Sensorboard

1 6 2 7 3 8 4 9 5

10PIN C9 C11 0.01uF 0.01uF

R1IN bat_voltage T1OUT ctr_relay

C8 0.01uF

R41 sen_airflow

2PIN

J5

For LCD power

2 1

C6 0.01uF 1 2 VCC 1M 3 motor signal 4 5 6 water 7 oxygen valve 8 9 10

VCC

VLCD+

26PIN

J11

To Mainboard

1 2 3 4 5 6 7 8 ctr_bell 9 10 ctr_bat ctr_ssr 11 12 ctr_hum ctr_o2 13 14 15 motor_pulse 16 water_state 17 18 fan_state heater_state 19 humheater_state 20 power_state 21 tank_state 22 23 VCC 24 25 +5 26 +5A

WENB RENB TOTXD2 TORXD2 T1OUT R1IN

SERVICE MANUAL FOR YP-2000 INCUBATOR

ELEMENTS DIAGRAM FOR POWER BOARD

7-12

I5

SERVICE MANUAL FOR YP-2000 INCUBATOR

MAIN BOARD ASSEMBLY DIAGRAM 1

7-13

SERVICE MANUAL FOR YP-2000 INCUBATOR

MAIN BOARD ASSEMBLY DIAGRAM 2

7-14 I5

SERVICE MANUAL FOR YP-2000 INCUBATOR

MAIN BOARD PARTS LIST No.

SYMBOL

NAME AND SPECIFICATION

QUANTITY

1

R2～R5,R7,R8,R21,R22, R24～R29

Resistor 0805-1KΩ±5%

14

2

R1,R6,R9~R13,R18

Resistor 0805-10KΩ±5%

8

3

R19,R30~R32

Resistor 0805-10KΩ±5%

4

4

R14

Resistor 0805-5.6KΩ±5%

1

5

R20,R23

Resistor 0805-200Ω±5%

2

6

R15,R16

Resistor 0805-180Ω±5%

2

7

R17

Potentiometer 3296-500Ω

1

8

C21,C36~C38,C40~C42

Capacitor 0805-0.01uF±20%

7

9

C1~C6,C10,C12~C15

Capacitor 0805-0.1uF±20%

11

10

C17~C20,C22~C27

Capacitor 0805-0.1uF±20%

10

11

C32,C33

Capacitor SMD-25V-150uF±20%

2

12

C16

Capacitor 0805-1500PF±20%

1

13

C7,C8

Capacitor 0805-15PF±20%

2

14

C34,C35

Capacitor 0805-22PF±20%

2

15

C28~C31

Capacitor CA45A-25V-1uF±20%

4

16

C9

Capacitor CA45B-16V-10uF±20%

1

17

C11

Capacitor CD11-25V-10uF±20%

1

18

C39

Capacitor CD11-16V-470uF±20%

1

19

U22

Integrated circuit TPS3824-50

1

20

U18,U19

Integrated circuit SN74LVC1G3157DBVR

2

21

U12

Integrated circuit SN74AHCT00D

1

22

U4

Integrated circuit SN74AHCT04D

1

23

U20

Integrated circuit AT89C51ED2-U

1

24

U7

Integrated circuit DS1230Y-100

1

25

U8,U9

Integrated circuit SN74AHCT574DW

2

26

U3

Integrated circuit SN74AHCT273DW

1

27

U17

Integrated circuit MAX232CSE

1

7-15

SERVICE MANUAL FOR YP-2000 INCUBATOR

MAIN BOARD PARTS LIST (Continue) No.

SYMBOL

NAME AND SPECIFICATION

QUANTITY

28

U10

Integrated circuit MC34063AP1

1

29

U23

Integrated circuit DS12C887

1

30

U13

Integrated circuit RA8835P3N

1

31

U14

Integrated circuit CY62256LL-70SNC

1

32

U21

Integrated circuit SN74AHCT373DW

1

33

U11,U16

Integrated circuit SN74LS244

2

34

U5,U6

Integrated circuit SN74AHCT139D

2

35

U1,U2

Integrated circuit SN74AHCT32D

2

36

U26,U27

Integrated circuit K1010

2

37

JZ1

Crystal oscillator HC-49/S-SMD-11.0592MHz

1

38

JZ2

Crystal oscillator HC-49/S-SMD-10.000MHz

1

39

L1

Winding inductance 100uH

1

40

L2~L7

Indsuctance 1210-22uH±20%

6

41

D1

Diode 1N5817

1

42

H1

LED-φ5-G/Y

1

43

H2

LED-φ5-G

1

44

H3

LED-φ5-Y

1

45

H4~H5

LED-φ5-R

2

46

TDK1

Inverter CXA-L10A

1

47

J3

Single row DPCZ-60T

6

48

J2

Socket XY4-2S

1

49

J1

Socket DC-2-26S（WS）

1

50

UZ1（U20）

integrated circuit socket

PLC-44

1

51

UZ2（U23）

integrated circuit socket

IC-24J

1

52

UZ3（U7）

integrated circuit socket

IC-28J

1

53

JP1

Socket 5597-12APB

1

54

J4

Socket SM03-BHS-1-TB

1

7-16 I5

C12 0.1uF

VCC

D7 D6 D5 D4 D3 D2 D1 D0 A8 CS8 /RD /WR

+5

C8

C13 0.1uF

D7 D6 D5 D4 D3 D2 D1 D0 A8 CS8 /RD /WR

ELEMENTS DIAGRAM 1 FOR MAIN BOARD

D2 D3 D4 D5 D6

XD CS A0 VDD D0 D1

+20

R14 5.6K

R17 500

1 2 3 4 5

D2 D3 D4 D5 D6

C14 0.1uF

55 56 57 58 59 60

JZ2 XTAL

CS8 A8 +5 D0 D1

0.1uF 15pF

C15

15pF

1

10K 10uF

/VCE 2

1

180

R16

VCC

5 7 2

180

R15

1500pF

C16

MC34063AP1(8)

8 1 3

LCD Driver

DRVC SWC CT

100uH

L1

CMPR IPK SWE

U10

JP1 5597-12APB(MOLEX )

VA8 VA9 VA10 VA11 VA12 VA13 VA14 VA15 VD0 VD1 VD2

35 34 33 32 31 30 29 28 27 26 25 24

1N5817

D1

SED1335F

NC VA14 VA15 VD0 VD1 VD2

VA8 VA9 VA10 VA11 VA12 VA13

U13

SN74AHCT00

U12A

VA5 VA14 VA7 VA13 VA12 VA11 VA10 VA9 VA1 VA2 VA4 VA3 VA8 VA0 VA6

VA5 VA14 VA7 VA13 VA12 VA11 VA10 VA9 VA1 VA2 VA4 VA3 VA8 VA0 VA6

VA15

C11 10uF

3

+20V +20

10 9 8 7 6 5 4 3 25 24 21 23 2 26 1

10 9 8 7 6 5 4 3 25 24 21 23 2 26 1

5

4

HM62256

A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14

U15

HM62256

A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14

U14

WE OE CE

GND

D0 D1 D2 D3 D4 D5 D6 D7 VCC

WE OE CE

GND

D0 D1 D2 D3 D4 D5 D6 D7 VCC

SN74AHCT00

U12B 6

27 22 20

14

11 12 13 15 16 17 18 19 28

27 22 20

14

11 12 13 15 16 17 18 19 28

/VWR RAM3CS

VCC

VD0 VD1 VD2 VD3 VD4 VD5 VD6 VD7

RAM2CS

/VWR

VCC

VD0 VD1 VD2 VD3 VD4 VD5 VD6 VD7

RAM3CS

10 11

R6

/WR /RD

D7 XD3 XD2 XD1 XD0

C7

+5

/RES CP GND LP

2

/VCE /VWR VA0 VA1 VA2 VA3 VA4 VA5 VA6 VA7

GND VCC XD3 XD2 XD1 XD0 DOFF

8 12

54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36

XG SEL1 SEL2 WR RD NC NC RES VRD VCE VWR VA0 VA1 VA2 VA3 VA4 VA5 VA6 VA7 DOFF FLM

U12D SN74AHCT00

U12C SN74AHCT00

3

470uF

C39

J2 2PIN

From powerboard

TDK1 CXA-L10A

J4 SMO3-BHS-1-TB(JST)

OUT1

1 2 VCC 1 2 1

D7 XD3 XD2 XD1 XD0 XECL XSCL VSS LP WF YDIS YD YSCL VD7 VD6 VD5 VD4 VD3 VD7 VD6 VD5 VD4 VD3

6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 CP LP FLM

7-17 12 11 10 9 8 7 6 5 4 3 2 1

OUT2

4 OGND

5 GND 2

C9

SERVICE MANUAL FOR YP-2000 INCUBATOR

9

13

+5

2

10K

R1

RST

WDI

U22 TPS3824-50

VDD

RST

wdi

A14 A15

GND

4

C21 0.01uF 5

+5

+5

+5

3 1 4 6

rst

/rst

2

5

15 14

43 42 41 40 39 38 37 36

/RD /WR

rst

19 18

10

21 20

17 motor_pulse 16 +5 35

RTC_INT

D0 D1 D2 D3 D4 D5 D6 D7

A10 A11

A12 A13

1

2 3

15

14 13 Y0 Y1 Y2 Y3

Y0 Y1 Y2 Y3

12 11 10 9

2

5

4 5 6 7

P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7

P3.0/RXD P3.1/TXD ALE/P PSEN

P2.0/A8 P2.1/A9 P2.2/A10 P2.3/A11 P2.4/A12 P2.5/A13 P2.6/A14 P2.7/A15

+5

11 13 33 32

24 25 26 27 28 29 30 31

2 3 4 5 6 7 8 9 A8 A9 A10 A11 A12 A13 A14 A15

R11 10K

+5

RXD TXD ALE

wdi

S0

C24 0.1uF

VCC

CS5 CS6 CS7 CS8

CS1 CS2 CS3 CS4

SN74AHCT32

5

SN74LVC1G3157

B1VCC B2 A S GND

U19

0.1uF

C23

3 1 4 6

SN74LS139A

G

A B

U6A

SN74LS139A

G

A B

U5B

AT89C51ED2-P44

P3.7/RD P3.6/WR

RST

XTAL1 XTAL2

EA/VP

P3.5/T1 P3.4/T0

P3.3/INT1 P3.2/INT0

P0.0/AD0 P0.1/AD1 P0.2/AD2 P0.3/AD3 P0.4/AD4 P0.5/AD5 P0.6/AD6 P0.7/AD7

U20

RXD1 RXD2 C22 RXD 0.1uFS0

VCC

SN74LVC1G3157

B1VCC B2 A S GND

U18

0.1uF

C5

JZ1 11.0592M

+5

R10 10K

1

22pF

C35

Y0 Y1 Y2 Y3

4 5 6 7

SN74AHCT32

CS7 /RD

2

/RD

13

U1D 12

CS6

/WR

CS5

SN74AHCT32

5

U2B 4

G1

CLK3

/WR

CS3

SN74AHCT32

3

8

CLK1

U2A 1

0.1uF

C4

U1C 9

10

3

U1B 4

SN74AHCT32

/WR

CS2

/WR

SN74AHCT32

2

CS1

SN74LS139A

G

A B

U5A

R9 10K

2

22pF

C34

3

1

+5

TXD1 TXD2 TXD S0

+5

1

2 3

+5

0.1uF

C3

0.1uF

C1

U1A 1

6

11

6

D0 D1 D2 D3 D4 D5 D6 D7

ALE

D0 D1 D2 D3 D4 D5 D6 D7

A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14

G2

CLK4

CLK2

4 5 6 7 8 9 10 11 12

1

1 11

3 4 7 8 13 14 17 18

10 9 8 7 6 5 4 3 25 24 21 23 2 26 1 WE OE CE

Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7

0.1uF

C25

0.1uF

R/W AS CS

IRQ RST DS

DS12C887

AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 GND

MOT VCC SQW

U23

SN74AHC373 C26

OE LE

D0 D1 D2 D3 D4 D5 D6 D7

U21

15 14 13

19 18 17

24 23

2 5 6 9 12 15 16 19

VCC

A0 A1 A2 A3 A4 A5 A6 A7

/WR /RD A15

D0 D1 D2 D3 D4 D5 D6 D7

/WR ALE CS4

RTC_INT /rst /RD

VCC

VCC

27 22 20

11 12 13 15 16 17 18 19 28

VCC D0 D1 D2 D3 D4 D5 D6 D7 VCC

0.1uF

DS1230Y-100

A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14

U7

C17

VCC

R12 10K

D4 D5 D6 D7

D0 D1 D2 D3

D0 D1 D2 D3

D0 D1 D2 D3 D4 D5 D6 D7

CLK3

D0 D1 D2 D3 D4 D5 D6 D7

CLK2

CLK1 /rst

D0 D1 D2 D3 D4 D5 D6 D7

9 7 5 3

18 16 14 12

18 16 14 12

2 3 4 5 6 7 8 9

1 11

2 3 4 5 6 7 8 9

1 11

11 1

3 4 7 8 13 14 17 18 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8

2 5 6 9 12 15 16 19

0.1uF

1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q

VCC

0.1uF

G A1 A2 A3 A4

Y1 Y2 Y3 Y4

SN74LS244

A1 A2 A3 A4

G

SN74LS244 U16B

Y1 Y2 Y3 Y4

U16A

G A1 A2 A3 A4

SN74LS244

Y1 Y2 Y3 Y4

U11A

11 13 15 17

19

2 4 6 8

1

2 4 6 8

1

1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q

VCC

SN74HCT574DW

1D 2D 3D 4D 5D 6D 7D 8D

OC CLK

U9

C19

SN74HCT574DW

1D 2D 3D 4D 5D 6D 7D 8D

OC CLK

U8

C18

SN74AHC273DW

CLK CLR

D1 D2 D3 D4 D5 D6 D7 D8

U3

key_out1 key_out2 key_out3

led_batchg led_batfull led_set led_37

+5

key_in1 key_in2 key_in3

G2 0.1uF

C27 VCC

humheater_state tank_state

G2

heater_state fan_state power_state water_state

G1

19 18 17 16 15 14 13 12

19 18 17 16 15 14 13 12

0.1uF

C10

led_pwr

ctr_hum ctr_o2

ctr_ssr ctr_bat

2

R22 K1010 1K

VCC

C36

KC1

R13 10K

KR1

19

C38

KC3

R19 10K

KR3

KC6

KC5

KC4

KC3

KC2

KC1

C40

KC4

R30 10K

KR4

1K R26 1K R27 1K R28 1K R29 1K

1K R25

R24

C6

C41

KC5

R31 10K

KR5

KR6

KR5

KR4

KR3

KR2

KR1

C42

KC6

R32 10K

KR6

SN74LS244

A1 A2 A3 A4

G Y1 Y2 Y3 Y4

C28 1uF

0.1uF U11B

+5A

R23 200

R21 1K

+5A

+5

TXD2 11 TORXD2 13 15 17

0.1uF led_alm

C2

ctr_bell

C37

KC2

R18 10K

KR2

22uH

22uH L7

22uH L6

22uH L5

22uH key_out3 L4

key_out1 L2 22uH key_out2 L3

VCC

RXD1

U27

K1010

R20 200 U26

VCC

SN74AHC04

4

SN74AHC04+5 U4B

U4A

TXD1

3

1

1K

R4

1 2 3 4 5 6

1K

R5

1K

R8

1K

R7

1K

R3

MAX232

C1+ C1T1IN T2IN R1OUT R2OUT

Keyboard

TOTXD2 RXD2 WENB RENB

1 3 11 10 12 9

C29 1uF U17 2 VS+

6PIN

J3

9 7 5 3

+5A

led_37

led_pwr

led_batfull

led_batchg R2 1K

led_set

0.1uF

C20

LED

LED H3

LED H5

VS-

6

C30 1uF WENB C31 RENB 1uF TOTXD2 TORXD2 T1OUT R1IN

D7 D6 D5 D4 D3 D2 D1 D0 A8 CS8 /RD /WR

D7 D6 D5 D4 D3 D2 D1 D0 A8 CS8 /RD /WR

26PIN

J1

From Powerboard

1 2 3 4 C2+ 4 5 C25 14 T1OUT 6 7 T2OUT 7 13 R1IN 8 8 R2IN ctr_bell 9 10 ctr_bat ctr_ssr 11 12 ctr_hum 13 ctr_o2 14 15 motor_pulse 16 water_state 17 18 fan_state heater_state 19 humheater_state 20 power_state 21 tank_state 22 +5 VCC 23 VCC 24 25 C32 C33 +5 26 150uF 150uF +5A

LED2 H4

LED H1

H2

SERVICE MANUAL FOR YP-2000 INCUBATOR

ELEMENTS DIAGRAM 2 FOR MAIN BOARD

7-18

I5

SERVICE MANUAL FOR YP-2000 INCUBATOR

SENSOR BOARD ASSEMBLY DIAGRAM 1

7-19

SERVICE MANUAL FOR YP-2000 INCUBATOR

SENSOR BOARD ASSEMBLY DIAGRAM 2

7-20 I5

SERVICE MANUAL FOR YP-2000 INCUBATOR

SENSOR BOARD PARTS LIST No.

SYMBOL

NAME AND SPECIFICATION

QUANTITY

1

R3,R4,R6

Resistor 0805-1KΩ±1%

3

2

R1,R5,R41,R48,R43,R44

Resistor 0805-1KΩ±5%

6

3

R12

Resistor 0805-9.1KΩ±1%

1

4

R2,R15~R17,R20, R21,R24

Resistor 0805-10KΩ±5%

7

5

R25,R36～R40

Resistor 0805-10KΩ±5%

6

6

R14

Resistor 0805-18KΩ±1%

1

7

R13

Resistor 0805-33kΩ±1%

1

8

R7,R42,R45

Resistor 0805-200Ω±5%

3

9

R27,R32～R35

Resistor 0805-499KΩ±5‰

5

10

R50,R51

Resistor 0805-100Ω±1%

2

11

R8～R11,R18,R19

Resistor 0805-20KΩ±1‰

6

12

R22,R23,R26,R46

Resistor 0805-20KΩ±1‰

4

13

R28～R31

Resistor 0805-13KΩ±5‰

4

14

R47

Resistor 0805-30KΩ±1‰

1

15

R49

Resistor 0805-510Ω±5%

1

16

VR1

Potentiometer 3296-100Ω

1

17

C16,C17

Capacitor 0805-10PF±20%

2

18

C1～C4,C5～C12,C40,C43

Capacitor 0805-0.01uF±20%

14

19

C18～C27,C32～C34

Capacitor 0805-0.1uF±20%

13

20

C44,C45,C47～C49

Capacitor 0805-0.1uF±20%

5

21

C35

Capacitor 1206-1uF±20%

1

22

C28～C31

Capacitor 0805-0.1uF±20%

5

7-21

SERVICE MANUAL FOR YP-2000 INCUBATOR

SENSOR BOARD PARTS LIST (Continue) No.

SYMBOL

NAME AND SPECIFICATION

QUANTITY

23

C13～C15,C36

Capacitor CA45B-16V-10uF±20%

4

24

C41,C42

Capacitor 0805-22PF±20%

2

25

C37～C39,C46

Capacitor SMD-25V-150uF±20%

4

26

U10

Integrated circuit SN74AHCT74D

1

27

U11,U15

Integrated circuit TLC277CD

2

28

U4

Integrated circuit TLV2548CDW

1

29

U5

Integrated circuit MSC1210Y5

1

30

U6

Integrated circuit MAX232CSE

1

31

U1,U16

Integrated circuit LM358D

2

32

U8,U13

Integrated circuit MC7805BDTG

2

33

U2,U3

Integrated circuit TPS3824-50

2

34

U17

Integrated circuit TLV2544CD

1

35

U9

Integrated circuit AT89C4051

1

36

U12,U14

Integrated circuit K1010

2

37

U17

Integrated circuit SN74AHC08D

1

38

Q1～Q3

Triode MMBT3904LT1

3

39

JZ1,JZ2

Crystal oscillator HC-49/S-SMD-11.0592MHz

2

40

LS1

Buzzer TMB12A05

1

41

S1

Plucking switch A6S-4101

1

42

H1

LED RL-803ARC30-0

1

43

F1,F2

Fuse 1812L050-C

2

44

J1

Strip needle with round hole RCD-40P

1

45

J8

Socket ATY1.25-6S

1

7-22 I5

SERVICE MANUAL FOR YP-2000 INCUBATOR

SENSOR BOARD PARTS LIST (Continue) No.

SYMBOL

NAME AND SPECIFICATION

QUANTITY

46

J3

Socket ATY1.25-2S

1

47

J6

Socket XY2.5-4S

1

48

J4,J5,J7

Socket ATY1.25-4S

3

49

J2

Socket XY2.5-10S

1

50

JP1

Single row header DPCZ-60T

1

7-23

SERVICE MANUAL FOR YP-2000 INCUBATOR

THE PREPOSITIVE SENSOR BOARD ASSEMBLY DIAGRAM THE PREPOSITIVE SENSOR BOARD PARTS LIST No.

SYMBOL

NAME AND SPECIFICATION

QUANTITY

1

J2,J3

Thermistor 14A3002-C3

2

2

J4

Humidity sensor HIH-4000-003

1

3

J5

Socket FD-10P

1

4

R1

Resistor RJ-0.25-68Ω±1%

1

J2

+5B

+5C

sen_duli smallfan

+5C sen_hum

+5B

J3

1 2

1 2

3 2 1

1 2 +12

J4 smallfan

J1

+5B

+12 1 2 3 4 5 6 7 8 9 10 J5

ELEMENTS DIAGRAM FOR THE PREPOSITIVE SENSOR BOARD 7-24 I5

SERVICE MANUAL FOR YP-2000 INCUBATOR

1. Oxygen sensor

2. Connecting wire for oxygen sensor

3. Connecting wire for Baby scale sendor

SENSOR WIRE-CONNECTING DIAGRAM

7-25

10PIN

4PIN

4PIN

SDO2 SDI2 SCLK2 ADC2INT

0.01uF

16 15 14 13 12 11 10 9 R23 20K

+5C

C15 10uF

C11 0.01uF

C9 0.01uF

2

+5C

C33 0.1uF 5

K1010 U14

22pF

C42

22pF

3

JZ2 XTAL

RST

U3 TPS3824-50 C41

VDD

RST

GND

1

R44 K1010 1K

+5B

RXD2

1

+5C

R22 20K

CSTART2

ADC2CS

ch_O2_2

0.1uF

2

TLV2544

SDO /CS SDI REFP SCLK REFM EOC/(-INT) FS VCC /PWDN A0 GND A1 /CSTAR A2 A3

0.1uF

C32

TLC277

499K C7

R35

1

C45

TXD2

R42 200 U12

+5B

+5B

+5B

WDI

ch_O2_2

1 2 3 4 5 6 7 8

0.01uF

R34 499K C6

ch_O2_1

0.1uF

C12 0.01uF

4

U7

2

1

TLC277

+5C C43 0.01uF U15A 3

2

+5B C40 0.01uF U11A 3

C5 0.01uF

C10 R18 R19 0.01uF 20K 20K

+5B

C14 10uF

+5C

1 T2IN 2 R2OUT 3 4 5 ADC2INT 6 7 8 9 10

10K

R16

10K

R20

clear

RST

C22 0.1uF

RXD1 TXD1 ADC1INT

JZ1 XTAL

20 19 18 17 16 15 14 13 12 11

R21 10K

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

CSTART2 ADC2CS SDO2 SDI2 SCLK2

+5C

R15 +5B 10K

+5B

VCC P1.7 P1.6 P1.5 P1.4 P1.3 P1.2 P1.1 P1.0 P3.7

0.1uF

C34

AT89C4051

RST RXD TXD XTAL2 XTAL1 /INT0 /INT1 T0 T1 GND

U9

+5C

R45 200

R2OUT

T2IN

3

+5B

10pF

1

R43 1K

+5C

U2 TPS3824-50

VDD

RST

GND

C17

10pF

10K

R25

10K

R24

R47 30K

R46 20K

+5C

XOUT XIN P3.0/RxD0 P3.1/TxD0 P3.2/INT0 P3.3/INT1/TONE/PWM P3.4/T0 P3.5/T1 P3.6/WR P3.7/RD DVdd DGND RST DVdd DVdd NC U5 MSC1210

clear

+5C

+5C +5C

4 3 2 1

ch_isolated

J8 scaler

6

5

2

3

Q Q

LM358

U16B

+5C

LM358

U16A

+5B

0.1uF

SN74LS74A C27

PRE CLK D CLR

U10A

1uF +5B

R3 R4 1K 1K C35

5 6

7

1

0.1uF

C48

over_alarm

C36 C25 0.1uF 10uF

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

2

315mA

+5B

3

R49 510

+5C

0.1uF

C49

SN74AHC08D

U17A

1K

R48

315mA

+5B

R17 10K

+5B

2PIN

J3

4 3 2 1

+5B

2 1

1 C46 150uF

1 C37 150uF

RXD1

IN

U8

relay_ctr

MAX232

C1+ C1T1IN T2IN R1OUT R2OUT

0.1uF

C24

U13 MC7805BDTG 3 IN OUT GND

MC7805BDTG 3 OUT GND

1 3 11 10 12 9

C29 U6 1uF 2 VS+

2PIN PSEL

JP1

LS1 TMB12A05 Q3 8080

C47 0.1uF

C26 0.1uF

Q1 8050

over_alarm R41 1K

TXD1

C28 1uF

C23 0.1uF

PSEN

2 1

A6S-4101

S1

coolfan_st1 coolfan_st2

+5B

F2

5 6 7 8

R36 10K

+5B

F1

1K

R5

1

+5C

+12

+12

EA P0.6/AD6 P0.7/AD7 ALE PSEN/OSCCLK/MDOCLK P2.7/A15 DVdd DGND P2.6/A14 P2.5/A13 P2.4/A12 P2.3/A11 P2.2/A10 P2.1/A09 P2.0/A08 NC

SW_BOX

LAMP_ALM

SW_HUM SW_O2 SW_O2CTR SW_WEIGHT

4

+5C

13K

R31

R33 499K

13K

R29

R32 499K

R26 20K

CSTAR1 ADC_CHECK ch_O2_1 ch_airflow

ADC1CS

C20 0.1uF 5

2

R2 10K

+5B

C16

6 5 4 3 2 1

13K

R30

13K

R28

C44

TLV2548

20 19 18 17 16 15 14 13 12 11

coolfan_st2

0.1uF

C19

coolfan_st1

0.1uF

C18

4

+5C ch_isolated

O2 Sensors

4 3 2 1

100 C8 0.01uF

+5B ch_air ch_skin1 ch_skin2 bat_voltage ch_hum

SDO CS SDI REFP SCLK REFM EOC/(INT) FS VCC PWDN A0 GND A1 CSTAR A2 A7 A3 A6 A4 A5

7

1

+5B

NC 32 REF OUT 31 REF IN+ 30 REF IN29 AVdd 28 AGND 27 AINCOM 26 AIN7/EXTA 25 AIN6/EXTD 24 AIN5 23 AIN4 22 AIN3 21 AIN2 20 AIN1 19 AIN0 18 AGND 17

J6

Skin 2 sensor

R10 20K

R51

1 2 3 4 5 6 7 8 9 10

0.1uF

+5B

LM2903

U1B

LM2903

U1A

WDI

4PIN

+5B

SDO1 SDI1 SCLK1 ADC1INT

U4

+5B

C21

6

5

2

3

4

4 3 2 1

100 C3 0.01uF

ch_skin1

+5B

R13 R14 33K 18K

+5B

R12 R6 9.1K 1K

VR1 100

P0.5/AD5 P0.4/AD4 P0.3/AD3 P0.2/AD2 P0.1/AD1 P0.0/AD0 P1.0/T2 P1.1/T2EX DGND DVdd P1.2/RxD1 P1.3/TxD1 P1.4/INT2/SS P1.5/INT3/MOSI P1.6/INT4/MISO P1.7/INT5/SCLK

J5

R9 20K

R50

C4 0.01uF

C13 10uF

2

2

Skin 1 sensor

+5B

C2 R11 0.01uF 20K

1K

ch_hum

1

4 3 2 1

R8 20K

ch_isolated smallfan ch_air

R27 499K C1 0.01uF R1

+5B

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

J4

+5C +5B

+12

3

To Prepositive sensor board

10 9 8 7 6 5 4 3 2 1 1 ADC1CS SCLK1 SDI1 SDO1 TXD2 RXD2

J1

CSTAR1

+5B R37 R38 R39 R40 10K 10K 10K 10K

+5C

+5B

C38 150uF

C39 150uF

C2+ C2T1OUT T2OUT R1IN R2IN

VS-

Q2 8050

LED

H1

4 5 14 7 13 8

6

+5B

4PIN

J7

C31 1uF

To powerboard of controller

10PIN

J2

serial port

1 2 3 4

1 2 3 +12 4 ch_airflow 5 bat_voltage 6 relay_ctr 7 8 9 10 R1IN T1OUT

T1OUT

R1IN

C30 1uF

TXD1 RXD1

+5B

200

R7

SERVICE MANUAL FOR YP-2000 INCUBATOR

SENSOR BOARD PRINCIPLE DIAGRAM

7-26

I5