• Author / Uploaded
• Griselda Maria Pinto Sanchez

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EVA-HF325/525 Troubleshooting

Technical Publication Ver.3.2

Troubleshooting EVA-HF325/525 generator

COMED Medical Systems Co., Ltd.

0

EVA-HF325/525 Troubleshooting

ADVISORY SYMBOLS The following advisory symbols will be used throughout this manual. Their application and meaning are described below.

DANGERS ADVISE OF CONDITIONS OR SITUATIONS THAT IF NOT HEED OR AVOIDED WILL CAUSE SERIOUS PERSONAL INJURY OR DEATH.

ADVISE OF CONDITIONS OR SITUATIONS THAT IF NOT HEEDED

OR

AVOIDED

COULD

CAUSE

SERIOUS

PERSONAL INJURY, OR CATASTROPHIC DAMAGE OF EQUIPMENT OR DATA.

ADVISE OF CONDITIONS OR SITUATIONS THAT IF NOT HEEDED OR AVOIDED COULD CAUSE PERSONAL INJURY OR DAMAGE TO EQUIPMENT OR DATA.

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EVA-HF325/525 Troubleshooting

CONTENTS

1. INTRODUCTION 2. ERROR

CODES

3. FLOW

CHART

4. ERROR 5.

9. MAIN 10. 11.

--------------------------------------

4 6

-------------------------------------

TABLE WAVEFORM

7. JOB 8.

------------------------------------

CHECK

DATA

6.

------------------------------------3

-------------------------------------

11

DATA---------------------------------

13

CODE---------------------------------------X-RAY CARD

CHECK-----------------------------------BOARD(MOTHER

TECHNICAL JOB

CODE

BOARD)DRAWING----------

INFORMATION-------------------------INFORMATION--------------------------

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16 40 45 46 56

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EVA-HF325/525 Troubleshooting

1. INTRODUCTION The

generator

contains

many

self-diagnostic

routines

which

greatly

facilitates

troubleshooting. The self-diagnostic functions require that all microprocessors function properly. Each microprocessor contains LEDs, LCD that indicates their proper operation.

THE MAIN STORAGE CAPACITORS RETAIN A LARGE PORTION OF THEIR FOR APPROXIMATELY 5MIN. AFTER THE UNIT IS TURNED OFF.

ALWAYS HAVE “IPM DRIVER PCB” CONNECTED WHEN MAIN POWER IS ACTIVATED IN THE GENERATOR. WHITOUT “IPM DRIVER PCB” CONNECTED, PERMANENT DAMAGE WILL OCCUR TO IPM’S.

DO NOT USE THE GENERATOR POWER SUPPLIES TO POWER EQUIPMENT EXTERNAL TO THE GENERATOR. ALL GENERATOR INPUTS AND OUTPUTS MUST BE TTL LOGIC LEVELS (TYPICALLY ACTIVE LOW) AND ISOLATED FROM OTHER SUBSYSTEMS OPTICALLY OR WITH DRY CONTACT RELAYS.

IF CHANGE EEPROM ON CONSOLE DISPLAY BOARD, WILL LOSE CALIBRATION DATA, APR DATA, AND SOME DATA. SO MUST CHECK EEPROM DATA. AND IF CHANGE UV-PROM ON HT CONTROL CPU BOARD AND CONSOLE DISPLAY BOARD, WILL CHECK THE VIRSION OF

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PROGRAM.

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EVA-HF325/525 Troubleshooting

2. ERROR CODES System error codes are displayed on the kVp display LCD(condition display LCD) Each code is preceded by the letter “ E”(i.e. E16). Error codes are described in below tables.

ERROR CODE

DESCRIPTION A system failure has been detected. The system must be turned

Display E xx

OFF and then ON to clear the error. Besides display “E xx”, another error code could be shown on the Console display LCD.

E16

E17

E18

E19

KV DATA is more than “FD”(see JOB CODE 020) Check KV DATA located APR data in EEPROM KV DATA is less than “20”(see JOB CODE 020) Check KV DATA located APR data in EEPROM mA DATA is more than “FD”(see JOB CODE 020) Check mA DATA located APR data in EEPROM mA DATA is less than “20”(see JOB CODE 020) Check mA DATA located APR data in EEPROM TIME DATA is abnormal(see JOB CODE 021)

E20

E21/E22

Check TIME DATA located APR data in EEPROM COMP DATA is abnormal(see JOB CODE 020) Check COMP DATA located Calibration data in UV-PROM ROTOR is abnormal(see JOB CODE 022)

E26/E27

Check ROTOR sensing circuit section or ROTOR DATA located in UV-PROM address CHARGE is abnormal(see JOB CODE 008 ~010)

E28

Charge capacitor(4700uF) is not charge Check charge sensing circuit section and control cpu board Filament sensing “LOW” (see JOB CODE 023)

E29

Low current input to filament Check filament sensing circuit section and connection of HV cable

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EVA-HF325/525 Troubleshooting

Filament sensing “HIGH”(see JOB CODE 023) E30

High current input to filament Check filament drive board section TEMP is abnormal(see JOB CODE 024)

E32

Tube temperature is overheated Check Tube temperature section and signal connection. IPM fault(see JOB CODE 025)

E00

Check IPM fault section

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EVA-HF325/525 Troubleshooting

3. FLOW CHART Power ON

Text 1 LED 9 ON LED10,11,12 ON

Check 1

LED 7,8 ON

Check 2

Text 2

Text 3 LED 1 OR 2 ON LED 3 OR 4 OR 5 ON

Check 3

Contactor 1 Contactor 2

Check 4

Text 4

Text 5 LED 4 ON

Initialize OK

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EVA-HF325/525 Troubleshooting

TEXT 1 Led 9 ON is meaning of system power input OK. Led 10,11,12 ON is meaning of power supply +5V,+12V,-12V OK. That Leds located on Relay power board.

TEXT 2 Led 7 ON is meaning of charge of capacitor ON. Led 8 ON is meaning of Filament power input(AC60) ON. Bucky power input(AC110) ON. Lock power input(DC30) ON. Collimeter power input(AC20) ON. And relay power(DC24V) in relay power board That Leds located on Relay power board.

TEXT 3 Led 1 ON is meaning of selected large focus filament. Led 2 ON is meaning of selected small focus filament. Leds ON will select Led 1 or Led 2. Led 3 ON is meaning of selected bucky 1. Led 4 ON is meaning of selected bucky 2. Led 5 ON is meaning of selected bucky 3. Led 3,4,5 all OFF is meaning of selected NO bucky and That leds ON will selected Led 3 or Led 4 or Led 5. That Leds located on Relay Power Board.

TEXT 4 Contactor 1, 2 is meaning of Main contactor and charge contactor ON.

TEXT 5 That meaning is System initializing OK. Led 4 located on HT contol cpu board.

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EVA-HF325/525 Troubleshooting

4. ERROR CHECK

CHECK 1 -

Line input power check(see JOB CODE 001)

-

Communication cable check(see JOB CODE 002)

-

Membrane key check(see JOB CODE 003)

-

Bridge diode in Relay power board(see JOB CODE 004)

-

AC12V input check(see JOB CODE 005)

CHECK 2 -

Power(+5V,+12V,-12V) in Relay power board(see JOB CODE 006)

-

Power ON signal check(see JOB CODE 007)

CHECK 3 Check ERROR CODE TABLE

-

CHECK 4 -

Check charge/discharge monitor board(see JOB CODE 008)

-

Check charge contactor(see JOB CODE 009)

-

Check charge signal in HT control cpu board(see JOB CODE 010)

Additional CHECK point - If stopped LCD display “ initialize … “ always. And No ERROR CODE display in LCD dispay(see JOB CODE 007)

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EVA-HF325/525 Troubleshooting

5. DATA TABLE The Calibration data and some technique data stored in the U7-UV_PROM And APR data stored in the U23-EEPROM of the Console display Board. 5.1 CALIBRATION DATA TABLE IN UV_PROM

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EVA-HF325/525 Troubleshooting

5.2 APR DATA TABLE IN EEPROM

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EVA-HF325/525 Troubleshooting

6. WAVEFORM DATA

1. Control waveform

3. Preheating

2. Output in gate of Q3,Q4

4. Ready preheating (at high mA data)

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EVA-HF325/525 Troubleshooting

5. Ready preheating (at low mA data)

7. KV data output (at high kV data)

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6. KV data output (at low kV data)

8. Exposure enable

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EVA-HF325/525 Troubleshooting

9. control waveform

11. –kV feedback

10.+kV feedback

12. dead time control

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EVA-HF325/525 Troubleshooting

13. TL594 output (at low kV data)

15. KDR1~KDR4 output

14. TL594 output (at high kV data)

16. +mA feedback

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EVA-HF325/525 Troubleshooting

17. –mA feedback

18. Rotor signal

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EVA-HF325/525 Troubleshooting

7. JOB CODE 7.1 JOB CODE 001 Tools & Equipment required : DVM THIS GENERATOR IS PERMANENTLY CONNECTED TO THE POWER LINE. INTERNAL PARTS OF THE GENERATOR(LINE FUSE, ETC.) ARE PERMANENTLY

POWERED

ON

THROUGH

POWER

LINE

ALTHOUGH THE CONSOLE IS OFF. BE SURE THAT THE SAFETY SWITCH IS OFF BEFORE HANDLING ANY INTERNAL PART OF THE EQUIPMENT.

THIS 325/525 GENERATOR LINE POWER IS SINGLE PHASE 220VAC. FOR SINGLE PHASE GENERATOR, CONNECT THE POWER CABLE L1 AND L2 (N: NEUTRAL) AND GND TO THE TERMINAL BLOCK.

x-ray power terminal line power cable

system power terminal AC connection wire

Check 1. input power of line power cable L1 and L2 voltage is 215 ~230VAC Check 2. connection of AC connection wire are tight to each terminals

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EVA-HF325/525 Troubleshooting

7.2 JOB CODE 002 Tools & Equipment required : DVM CHECK POWER ON/OFF/COM OF J2 IN COMMUNICATION CABLE SIGNAL

J1 J2 Pic1.view in mother board J1 +5V(H→C) GND(H→C) TXD RXD HX-RAY HREADY HINHIBIT HTRANSFER CREADY CX-RAY CTRANSFER CINHIBIT +12V(C→H) +12V(H→C)

J1

AND

J2

IS

J2

J1 Pic2. wiew in console J2

+KV -KV DC24V-2(H→C) TUBE2 READY TUBE2X-RAY FLUORO MODE POWER OFF POWER ON POWER COM C+5V C+12V C GND

CONNECTED

CONTROLLER

AND

CONSOLE

WITH

RS-232

COMMUNICATION CABLE SO, FIX TIGHTLY WITH SCREW WHEN CONNECT J1,J2. AND THEN CHECK IT.

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EVA-HF325/525 Troubleshooting

ONESIDE COMMUNICATION CABLE LOCATED MOTHER BOARD INSIDE

CONTROLLER

INTERCONNECTION

ARE

FACTORY

MADE. ONLY OPPOSITE CONNECTION SHOULD BE CONNECT TO CONSOLE. AND COMMUNICATION CABLE LENGTH IS 10M. FOR CABLE LENGTH REFER TO STANDARD RS-232 COMMUNICATION WIRE LENGTH. IF ROOM REQUIRE MORE THAN LENGTH MUST NOT OVER THAN 15M. IF WIRE LENGTH MORE THAN 15M WILL BE OCCUR COMMUNICATION FAILURE.

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EVA-HF325/525 Troubleshooting

7.3 JOB CODE 003 Tools & Equipment required : DVM Check SW49(power off), SW50(power on) connection. PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 PC0 PC1 PC2 PC3 PC4 PC5 PC6 PC7 NC SWOFF SWON SWCOM

SW1

SW2

SW3

SW4

SW5

SW6

SW9

SW10

SW11

SW12

SW13

SW14

S17

SW18

SW19

SW20

SW21

SW25

SW26

SW27

SW28

SW29

SW30

SW33

SW34

SW35

SW36

SW37

SW38

SW41

SW42

SW43

SW44

SW7

SW8

SW39

SW49

SW50

power OFF

power ON

misprint silkscreen membrane key

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EVA-HF325/525 Troubleshooting

7.4 JOB CODE 004 Tools & Equipment required : DVM Check D9(bridge diode) of Relay power board

bridge diode

COM/ON/OFF

LED9

Check diode input AC12V and output DC20V

R40 1.2K

D16

RY9 SW

1N4001 LD9 LED

J1-21,43(AC220V) J1-19,41(AC220V) J1-20,42(AC220V)

-

R34

+

R35 1K

D9 DF06

+

C12

220uF/35V

R37

Q6 2N2222A

1K R38 4.7K

Q5 2N2222A

1K

R36 4.7K

to console control J1-1(S/W ON)) J1-2,24(S/W COM) J1-23(S/W OFF) J1-22(AC12V) J1-44(AC12V)

LED9 ON SWITCH ON/COM/OFF LINE IS CONNECTED WITH COMMUNICATION AND CONSOLE.

7.5 JOB CODE 005 COMED Medical Systems Co., Ltd.

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EVA-HF325/525 Troubleshooting

Tools & Equipment required : DVM Check AC12V in Pictures Pic 1. SUB TRANSFORMER AC12V(to main power board) AC20V SYSTEM POWER TERMINAL Pic 2. MAIN POWER BOARD J5(11P)

J5

J9(6P) J9 AC220V AC220V AC12V (From AC12V AC20V AC20V

(To mother board) sub-transformer)

DC24V-2 GND DC24V-1 AC220V(N) AC220V(N) IPM AC220V IPM AC220V AC12V AC12V AC220V AC220V

mother board drawing refer

7.6 JOB CODE 006 Tools & Equipment required : DVM Check TEST POINT +5V,+12V,-12V in Relay Power Board

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EVA-HF325/525 Troubleshooting

Check +5V(4.95V ~5.10V) Check +12V(11.95V ~12.10V) Check –12V(11.95 ~12.10V)

LED10 ON : +5V LED11 ON : +12V LED12 ON : -12V

R10 : +5V ADJUST R25 : +12V ADJUST R33 : -12V ADJUST

R10 R33

R25

7.7 JOB CODE 007 Tools & Equipment required : DVM Check POWER ON signal. 1. Check output signal 17pin of U19 in HT Control Cpu Board

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EVA-HF325/525 Troubleshooting

17pin of U19(power on signal) is High→Low

2. Check input signal 2pin of J3 in Main Power Board J3

ROTOR ON POWER ON 220/40 CHANGE TUBE SELECT ROTOR SENSE ROTOR SENSE BUCKY AC110V BUCKY AC110V

Relay 3 and D5

SP4

TO MAIN TRANSFORMER J2-4

FROM SUB TRANSFORMER

F7

J2-6

RY3

20A

D5

+24V

POWER ON

1N4007

Pic. Main power board drawing One wire of sub transformer (Input power 220VAC) and main transformer (220VAC) is interconnected by Relay 3. So, operating by Relay 3 will give Input power to system. 3. Check input signal to Relay8 in Relay Power Board

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EVA-HF325/525 Troubleshooting

J2-13,35(DC24V-1) J1-4(DC24V-2)

R39 2.2K

LD8 LED

D17

RY8

J1-12,34(DC24V-2 OUTPUT) to 1pin of J11and 2pin of J2 in mother board and

1N4001

J2-26(POWER ON) To Relay Power

4. Check input power DC24V-2, DC24V-1(All power is from Main power board)

If stopped LCD display “ initialize … “ always and No ERROR CODE display in LCD dispay , Check this section

7.8 JOB CODE 008 Tools & Equipment required : DVM Check Led1 light ON and Charge Capacitor storge voltage(about 310VDC)

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EVA-HF325/525 Troubleshooting

P2(charge sense) P3(discharge signal) R3- R9(33K) this resistor endure at 230VAC Must check input power voltage(210 – 230VAC)

Discharge signal refer to Relay Power Board drawing LED1

J1 + -

1 2

R1 68K/3W

NOTE1 R2 27k/3w

R4 15K/3W

R3 100K/3W

R5 15K/3W

R6 15K/3W

D1 IN4764

R7 15K/3W

R8 15K/3W

R9 15K/3W

Q1 IRFP450

LED1 D3 1N4733

D2 IN4764

U1 1

6

P3

R4

1 2

3.3M 2

5

3

4

TLP531

NOTE1 :

2005.10.7

DIS CHARGE

To 3,4pin of J10 in Mother Board

P2 1 2 3

To 5,6pin of J10 in Mother Board

CHARGE SEN

AC220/1PHASE - > 27K/3W AC380/3PHASE - > 18K/3W

Note2 : AC 220/1Phase -> 33K AC 380/3Phase -> 9K

Pic. Charge/discharge Monitor Board THIS GENERATOR IS PERMANENTLY CONNECTED TO THE POWER LINE. INTERNAL PARTS OF THE GENERATOR(LINE FUSE, ETC.) ARE PERMANENTLY POWERED ON THROUGH POWER LINE ALTHOUGH THE CONSOLE IS OFF. BE SURE THAT THE SAFETY SWITCH IS OFF BEFORE HANDLING ANY INTERNAL PART OF THE EQUIPMENT. THE MAIN STORGE CAPACITORS RETAIN A LARGE PORTION OF THEIR CHARGE FOR APPROXIMATELY 3 MIN. AFTER THE UNIT IS TURNED OFF.

7.9 JOB CODE 009 Tools & Equipment required : DVM Check main and charge contactor action.

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EVA-HF325/525 Troubleshooting

main

charge

precharge resistor

Sub Relay Board J2

J3

DC24V-2 GND MAIN RELAY CHARGE RELAY PRECHARGE RELAY

MAIN MAG MAIN MAG CHARGE CHARGE MAGELAY

7.10 JOB CODE 010

Tools & Equipment required : DVM Check each signal actions in HT control cpu board. U19

U19 1 2 3 4 5 6 7 8 9

I1 I2 I3 I4 I5 I6 I7 I8 GND

R39-46 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 COM

18 17 16 15 14 13 12 11 10

10 J2-27(MAIN MAG) J2-5(POWER ON) J2-28(PRECHARGE) J2-6(CHARGE MAG) J2-7(TUBE SEL) J2-29(220/60) J2-30(HIGH SPEED RTON) J2-8(ROTOR ON) 1K

ULN2803

　

POWER OFF

POWER ON

MAIN MAG

CHARGE MAG

18PIN

low

high

low

low

17PIN

high

low

low

low

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EVA-HF325/525 Troubleshooting

16PIN

low

high

low

high

15PIN

low

high

high

low

If power not charge in storge capacitor will displayed “E28” in console display.

7.20 JOB CODE 020 Tools & Equipment required : ROM-WRITER, CALCULATOR Check kV, mA, comp data in Calibration Mode or read and re_write Serial-ROM with ROMWRITER. See Serial-ROM TABLE(chapter.6) address

description

address

description

0007600 ~ 0007610

KVp data at 25mA

0007820 ~ 0007830

mA data at 50mA

0007620 ~ 0007630

kVp data at 50mA

0007840 ~ 0007850

mAp data at 75mA

0007640 ~ 0007650

KVp data at 75mA

0007860 ~ 0007870

mA data at 100mA

0007660 ~ 0007670

KVp data at 100mA

0007880 ~ 0007890

mA data at 150mA

0007680 ~ 0007690

KVp data at 150mA

00078A0 ~ 00078B0

mA data at 200mA

00076A0 ~ 00076B0

KVp data at 200mA

00078C0~ 00078D0

mA data at 250mA

00076C0~ 00076D0

KVp data at 250mA

00078E0 ~ 00078F0

mA data at 300mA

00076E0 ~ 00076F0

KVp data at 300mA

0007900 ~ 0007910

mA data at 400mA

0007700 ~ 0007710

KVp data at 400mA

0007920 ~ 0007930

mA data at 500mA

0007720 ~ 0007730

kVp data at 500mA

0007A00 ~ 0007A00

Comp data

0007800 ~ 0007810

mA data at 25mA

0007A20 ~ 0007A20

Technical data

See EEPROM TABLE(chapter.6) address

description

0003000 ~ 00030D0

KVp, mA, time,bucky selecting data at very big human

0003100 ~ 00031D0

KVp, mA, time,bucky selecting data at big human

0003200 ~ 00032D0

KVp, mA, time,bucky selecting data at small human

0003300 ~ 00033D0

KVp, mA, time,bucky selecting data at very small human

Pic. Calibration Mode LCD display

KVp data, mA data, comp data

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EVA-HF325/525 Troubleshooting

If need change Calibration data with new data saved in Serial-ROM. You will read Serial-ROM with Rom_writer and re_save data in same address. if you save abnormal data, it will be displayed ERROR message in Console Display LCD. If APR data brocken by noise. You can re_save with pushing set switch(save switch) in APR MODE. Pic. Serial-ROM and EEPROM location(Console display board(operating_panel_console board)

U7(M27C256B) ) U25(25256)

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EVA-HF325/525 Troubleshooting

7.21 JOB CODE 021 Tools & Equipment required : ROM-WRITER, CALCULATOR Check reference of calibration data in Serial-ROM with ROM-WRITER.

Reference of Calibration data

All calibration data of KV(MA)SET is sum of reference data and calibration data. Must not change value of reference data at Serial-ROM. Only changeable calibration data. KV-SET = reference data + calibration data MA-SET = reference data + calibration data MA-COMP = calibration data Pic. Reference address

and

data in SerialROM

KVp reference data at 200mA

mA

reference

data at 25mA

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EVA-HF325/525 Troubleshooting

mA reference data at 50mA

mA reference data at 75mA

Pic. Reference data address table in Serial-ROM address 0006E00 ~ 0006E55 0006E80 ~ 0006ED5 0006F00 ~ 0006F55 0006F80 ~ 0006FD5 0007000 ~ 0007055 0007080 ~ 00070D5 0007100~ 0007155 0007180 ~ 00071D5 0007200 ~ 0007255 0007280 ~ 00072D5 0007300 ~ 0007355

description KVp reference data at 200mA mA reference data at 25mA mA reference data at 50mA mA reference data at 75mA mA reference data at 100mA mA reference data at 150mA mA reference data at 200mA mA reference data at 250mA mA reference data at 300mA mA reference data at 400mA mA reference data at 500mA

If you want detail calibration information see CALIBRATION MANUAL

7.22 JOB CODE 022 Tools & Equipment required : DVM,OSC 1. Check ROTOR connecton Pic. Main power board and drawing

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EVA-HF325/525 Troubleshooting

J10

SSR CT J7(To Interface Terminal)

J10

1 2

SP(spark killer)

CT1 0VAC

ROTOR COM/MAIN/PHASE

DC24V-1 SP1

SSR1

220VAC SSR

D4 1N4007 J7-1 J7-2 J7-3 J7-4 J7-5 C4

24uF

Pic. Interface Terminal

ROTOR ON

To ROTOR of TUBE

Pic. Rotor(anode of tube) TEMP G(PHASE) B(MAIN)

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EVA-HF325/525 Troubleshooting

W(COM)

Check connection of ROTOR wire.(Checking point is interface terminal) Must power OFF when check the ROTOR connection. Will accuse electrical shock.

Checking Point

Value

Accuracy limit

COM - PHASE

Ω

58 ~ 62Ω

COM - MAIN

Ω

29 ~ 32Ω

MAIN - PHASE

Ω

85 ~ 95Ω

Check ROTOR input signal when pushed ready switch. Checking Point

Value

Accuracy limit

COM - PHASE

VAC

280 ~ 310VAC

COM - MAIN

VAC

210 ~ 230VAC

MAIN - PHASE

VAC

280 ~ 310VAC

Check ROTOR feedback signal and waveform(use OSC equipment) Checking Point

Value

TP9

Accuracy limit VDC

0.8 ~ 0.95VDC

Rotor feed back signal must check with Osciloscope. Rotor rotating signal is too short time to exam. ON 0.2sec

OFF 3sec

ON

OFF

0.2sec

Pic.Rotor feedback signal in HT control control board

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EVA-HF325/525 Troubleshooting

Waveform of ROTOR feedback signal refer chapter 6 18.ROTOR signal

U19 1 2 3 4 5 6 7 8 9

I1 I2 I3 I4 I5 I6 I7 I8 GND

R39-46 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 COM

18 17 16 15 14 13 12 11 10

10 J2-27(MAIN MAG) J2-5(POWER ON) J2-28(PRECHARGE) J2-6(CHARGE MAG) J2-7(TUBE SEL) J2-29(220/60) J2-30(HIGH SPEED RTON) J2-8(ROTOR ON) 1K

ULN2803

If did not output sensing signal of ROTOR sense, it will display “E26/27” in Console display LCD.

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EVA-HF325/525 Troubleshooting

7.23 JOB CODE 023 Tools & Equipment required : DVM 1. Check the feedback signal.(HT control control board) filament feedback signal(from filament drive board) +12V C49

+12V

104

0.6V 8

TP11 VR8

3

10k

2

U12A

+

D24 1

-

1N4148

4

R65

R63 4.7K

8

TL082A J1_13,35(FILSEN)

6

R64 4.7K

U6 ULN2004

11 J1_12(FILLOW)

10k C48 104

+12V

5 VR9

6

U12B

+ -

TL082A

5

U6 ULN2004

1N4148

12 J1_34(FILHIGH)

4

10k

D25 7

TP10

C50 3.3V -12V 104

Check time is not ready switch pushed. Check point

Value

Accuracy limit

Filament feedback sensing

VDC

0.6 ~ 0.9VDC

Sensing LOW limit(TP11)

VDC

0.1 ~ 0.5VDC

Sensing HIGH limit(TP10)

VDC

3.0 ~ 3.5VDC

If you want LOW limit change, use with VR8. and HIGH limit is VR9. If filament sensing value is lower than TP11, will display “E29” in Console Display LCD. And higher than TP10, will display “E30” in Console Display LCD.

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EVA-HF325/525 Troubleshooting

7.24 JOB CODE 024 Tools & Equipment required : DVM Pic. TUBE(anode) TUBE temperature signal is mormal close but temperature about over than 70° will open.

Pic. Interface terminal Temp(from tube)

If TUBE temperature signal is open, will display “E32” in Console display LCD. J7

J7(10P)

BUCKY1 BUCKY1 BUCKY2 BUCKY2 BUCKY3 BUCKY3 TUBE1 TEMP TUBE1 TEMP TUBE2 TEMP

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EVA-HF325/525 Troubleshooting

TUBE2 TEMP

Tube 2 temp not used 325/525 generator use two tube(option), so,tube2 temperature signal must come to ground

7.25 JOB CODE 025 Tools & Equipment required : DVM 1. Check that the wires maked “+kV, -kV, +mA, -mA” in the HV Tank are well placed and tighten. Pic. HV tank(High tension transformer) 1.-kV(black) 2.+kV(red) 3.+mA(green) 4.-mA(white) 5.GND(yellow/shield) 6.small 7.com 8.large

Pic. Mother board(Main card board)

From HV tank

Connection check point Check Point

Value

Accuracy limit

-kV – GND

kΩ

113 ~ 114kΩ

+kV – GND

kΩ

112 ~ 113kΩ

COMED Medical Systems Co., Ltd.

36

EVA-HF325/525 Troubleshooting

+mA – GND

kΩ

2 ~ 2.5kΩ

-mA - GND

kΩ

2 ~ 2.5kΩ

Must power OFF When check the connection 2. Check the IPM driver Pic. IPM Drive Board drawing. D3 FR107

PC2 2

8 6

3

5

SPR(+5V INPUT1) R1 6.8K

C7

J1-2

MAYER CAPACITOR

0.1

CP(-KV DR1)

HCPL4503

J1-3

VPC(GND1)

J1-4

PC1 8

2

6

3

5

VP1(+15VOUTPUT1) C5 0.1

J1-1

FPO(-FAULT1)

J1-5

HCPL4503

Table. Check Point(All power was setted originally in factory. Don’t need contrast) Checking point

Value

Accuracy limit

J1 – 1,4

VDC

14.9 ~ 15.1VDC

J1 – 2,4

VDC

4.95 ~ 5.05VDC

J2 – 1,4

VDC

14.9 ~ 15.1VDC

J2 – 2,4

VDC

4.95 ~ 5.05VDC

Pic.IPM and IPM drive board IPM IPM drive board J2 J1 J3 J1(J2) FAULT GND -KV DR +5V +15V

COMED Medical Systems Co., Ltd.

+5V GND KDR1 KDR2 FAULT AC220V AC220V

37

EVA-HF325/525 Troubleshooting

ALWAYS HAVE “IPM DRIVER PCB” CONNECTED WHEN MAIN POWER IS ACTIVATED

IN

THE

GENERATOR.

WHITOUT

“IPM

DRIVER

PCB”

CONNECTED, PERMANENT DAMAGE WILL OCCUR TO IPM’S.

7.26 JOB CODE 026 If “E00” display at console display LCD when x-ray shooting. Check point. 1. feedback waveform Pic. Testing point kV, mA

+mA

+kV GND When measure “+kV” wih OSC, real kV is 10kV per 1V. Also, real mA is 20mA per 1V. Case 1

IPM FAULT “E00” 1. HV cable bad(over than 80kVp)  change HV cable. 2. Calibration data abnormal  check calibration data 3. IPM damage(sound “ting”)  change IPM 4. check IC TL594,ULN2004 in HT control control board and AD7224 in HT control cpu board  KOUT, TL594 output signal waveform check.

COMED Medical Systems Co., Ltd.

38

EVA-HF325/525 Troubleshooting

U27

I1 I2 I3 I4 I5 I6 I7 GND

O1 O2 O3 O4 O5 O6 O7 COM

5

16 15 14 13 12 11 10 9

16 15

5.

ULN2004

3 1 2 7

CT +IN1 -IN1 FB +IN2 -IN2 GND U3 TL594

RT

1 2 3 4 5 6 7 8

13 12 11 10

6

U6

VCC C1 C2 E1 E2 REF CTL DTC

12 11 8 9 10 14 13 4

15

HV

9 8 7 6

D0 D1 D2 D3 D4 D5 D6 D7

WR

VDD RS

VREF CS LDAC AGND DGND VSS VOUT

18 17

3 14 16 4 5 1 2

AD7224

transformer

bad



change HV transformer. Case 2

Sometimes IPM FAULT “E00” 1. Input power(kW) “LOW”  Change exposure condition 100kVp 300mA 0.3sec  100kVp 100(150)mA 0.9(0.6)sec This is input current low, so change mA condition. 2. IC SG3524 in filament drive board is damage.  change new IC. 2. Aanother factor. 1. If IPM driver board broken, always display “E00”(power on state ,not exposure state)  change IPM driver board  check IPM drive input power(220VAC) and signal connection. 2. If IPM was damaged, sound “ ting—“and display “E00” at high kVp exposing  change IPM

COMED Medical Systems Co., Ltd.

39

EVA-HF325/525 Troubleshooting

8. X-RAY CHECK 1. FILAMENT DRIVE BOARD CHECK Tools & Equipment required : DVM,OSC Pic. Filament drive board ① filament enable signal (high  low) ② control waveform (see waveform 1) ③ output in gate of Q3,Q4(see waveform 2) ④ preheating wave(see waveform 3) ready wave with high mA data(see waveform 4) ready wave with low mA data(see waveform 5)

②

③

DC0V - 100V

+12V

C22

+

ZD3

100uF/35V

1N4745

D9

T3

D10

FR102

D7

FR102

R27 1K

FR102

Q11 IRFP250

D11

Q7 2N2907

1N4745

C24 473

Q8 CLK R29

Q3 IRF630

10 4 5 8 U2 LM 3524

SHTDWN +SENSE -SENSE GND

1K R9

15

9

VIN COMP

OSCOUT CT

CA CB EA EB

12 13

U3 1 2 3 4

11 14

NC INA GND INB

NC OTA VDD OTB

R19 1K

FR102

R32 1K

R31 1K

FR102

D15

FR102

FR102

Q10

5K

D17

FSENSE

R49 10K

C28 1uF

+

R47 10K

D19 1N4148

R45 20K

R42 R38 47K/3W

1K

473

C16

C19

104

104

R35

104

R36 100

560

R39 0.5/5W

1K 20K

C35

T5

R43

R48

D21 1N4148

470uF/200V

C32

10uF

1N4148

224

Q11 2P4M

20K C34

+ C30

+12V

R46

D22

R44 1K

D20

+12V

D18 1N4148

C33 102 -12V

0.1

1N4148

J 1-4,5,26,27(FIL OUTA)

U5B

-

7

100uF/35V

+

U5A

6

+

2

J 1-6,7,28,29(FIL OUTB)

3

4

TL082 4

TL082 C36

-

1

5

8

C37 8

+

ZD10

C13

C27

1N4745

4.7 1/2W

20K

R50 10K

C26 102

R34

FR102

R51

1N4745

2N2907

1 1/2W ZD8 1N4733

1K

ZD9 Q9 2N2907

R33

1K

J2-19,20,41,42(-12V)

D14

Q4 IRF630

R22

0.5/3W

222/1KV

D13

T4

D8

R18 1K

100/3W R41

Q12 IRFP250

4.7 1/2W

FR102

1N4745

104

R30

ZD4

8 7 6 5

TC4427

VR3

R23

J 2-30(M SY)

V-

1

472

RT

VREF

3 7

V+

6 4.7K

C18

2

R52

C15

104

C25 1uF

16

5K

D12

1N4745

C31

ZD5 1N4733

C21 0.1

R37 47K/3W

R40 C14

ZD7

2N2907

1 1/2W

+12V

VR2

C23 102

470uF/200V

224

ZD6

FR102

R28 1K

+ C29

C12

-12V 0.1

COMED Medical Systems Co., Ltd.

40

EVA-HF325/525 Troubleshooting

①

④

Filament control frequency check Checking point

Value

Accuracy limit

CLK in U2(SG3524)

65 ~ 75㎲ec

㎲ec

Adjust point : VR2

NF1

Q1

R1

Q2

R2

Q3

R3

Q4

R4

0.5/3W

BUX48A

BD1 + KBU10M

0.5/3W

BUX48A

J2-13,14,35,36(AC60V) NOISE FILTER

0.5/3W

BUX48A J2-15,37(EARTH)

R11 47K/3W

+ C1

+ C2

470uF/200V

470uF/200V

R10 0.5/3W

BUX48A Q5

1K/3W

R24 5.2K

2.2K/1/2W

1N4148

C17

+

R17

R13 390

R15 820

47K

C4 C5 0.1

J2-21,22,43,44(GND) R7 2.4K

R14 12K

47K

5

+ 4

+12V

R12 12K R16

6

-

1N4148

D3

Q6 2N3440

104

U6B LM358 7

D1

R6

J2-17,18,39,40(+12V)

C7

R5

TIP42

DC0 - 100V

0.2/5W

+12V

8

-

R8 2.7K

U6A LM358 1

D2

100uF/35V

0.1 8

J2-10,11,32,33(AC60V)

R20

2

-

47K

3

+

1N4148

R21 4

47K C3 0.1

R54 10K

J2-31(FOUT)

C8

VR1 2K

8

+12V R57

104

2 10K

3

-

1

+

U4A TL082

4

C9 R58 10K

R55 R53 1K

120K 8

-12V R56

104

6 100K

R26 4.7K

C6 0.1

-

7

+

U4B TL082

4

C10

5

R25 10K

8

+12V +

6 5

1

-

U1A TL082

+

2 3

FSENSE

-12V

4

4

U1B TL082 C11

8

104 7

J1-13,24,35(FSEN)

104

⑤

⑥

VR1

⑤ Filament feedback signal (to HT control control board) ⑥ FOUT signal (from HT control cpu board)

COMED Medical Systems Co., Ltd.

41

EVA-HF325/525 Troubleshooting

All mA step condition will

change uniformly with VR1 contrasting FOUT

signal. And, If you want each mA step condition change, use Calibration mode

BECAREFUL WHEN YOU CHECKING “FOUT SIGNAL”.

IF

ELECTRICAL

SHORT HAPPEN, U25(AD7224) IN HT CONTROL CPU BOARD WILL BE BROCKEN.

Pic.Filament drive board

COMED Medical Systems Co., Ltd.

42

EVA-HF325/525 Troubleshooting

SomeTimes, U1(TL082) is broken by filament noise. This IC operate feedback sensing regulator. If U1 broken, E30 display in Console LCD. Because, filament feedback signal is pull-off(12VDC) by broken IC. So filament feedback signal feedback “HIGH” by filament sensing circuit in HT control control board.(see JOB CODE 023)

2. HT CONTROL CONTROL BOARD CHECK Tools & Equipment required : DVM,OSC Pic.

HT

control control board

COMED Medical Systems Co., Ltd.

43

EVA-HF325/525 Troubleshooting

Test exposure condition : 40kV/70kV, 200mA ,0.025sec) ④

⑧ +12V R38 4.7K

R37 4.7K

8

KV

2

C8

R19

100P

J1_27(-MASEN) J1_5(+MASEN)

ZD3

102 J1_26(-KVSEN) J1_4(+KVSEN)

6 1M

C5

D5

1N4744

1N4148

T2 100uH

+12V

1N4148

U2B

C9

C10

273

100P

R17

7

D7

D8

1N4148

1N4148

R1 100K

VR2

3

1M

2 D 1 IN

S

20K ADG201A U4B

VR1

154K

14

ADG201A

8

J2_32(KOUT)

3

+12V

D10 1N4148

TL082A C11

-12V

R23 52K

C12 273

R24 100K

100P

D11

D12

1N4148

1N4148

16 15 3 1 2 7

24.9K

-

C13

C14 104

R25 1K

1N4752

1N4148

1N4148

+12V

U1B

-

7

+ TL082A

C2

ZD2

D3

D4

104

1N4752

1N4148

1N4148

R4

C3 103

100K

J1_23(M SEN) 10K

R26 1K

CT +IN1 -IN1 FB +IN2 -IN2 GND U3 TL594

VCC C1 C2 E1 E2 REF CTL DTC

104

12 11 8 9 10 14 13 4

TP3

TP1 C16

R27

0.22

10K

VR3 10K

C17

U6

TP4

R29 1K

R30 1K

1 2 3 4 5 6 7 8

I1 I2 I3 I4 I5 I6 I7 GND

O1 O2 O3 O4 O5 O6 O7 COM

16 15 14 13 12 11 10 9

R33-R36

J1_7(KDR1) J1_29(KDR2) J1_8(KDR3) J1_30(KDR4)

10

ULN2004

104

R21 10K

4.99K D14

J2_9(EXP) J2_31(KSY)

U5A 2 1

1N4148 R31 1K

D13

R32 1K

D IN

S

3

13 U4 ADG202A

ADG201A U5C

1N4148 10 9

+5V

D IN

7 8

D IN

C24 104

4

C25 104

S

11 13

ADG201A U5D S

6

U5 ADG201A

C26 104

4

C27 104

ADG201A

①

1

②

③

⑤

⑥

⑦

kV output data voltage from 2 of U27 in Ht control cpu board 1(when exposured) kV low (40kV see waveform 6) kV high(70kV see waveform 7)

2

exposure/kV enable signal high  low (see waveform 8)

3

TP 2 is control waveform(see waveform 9)

COMED Medical Systems Co., Ltd.

R7 10K

R5

+MA

+12V

MA

-12V

103

R20

R6 10K

6

5 103

R22

1

4

D9 1N4148

2

+

104

5

C23

C15

ADG201A

683

U2A

D2

1K

TP2

RT

C18

15 D 16 IN

S

D1

1K

R28

U5B

ZD1

R2 15 D 16 IN

S

10K

+KV

6 100K

C1

T1 100uH

U4A

R14

14

R3 1K

104

100P

R13

3

S

103

C22

C7

ZD4 1N4744

D IN ADG201A

-M A

R18 34K

+

-12V

-12V

102 10K

10K

TL082A

C6

R11

-

5

D6

R16

104

4

10K

2 1

8

R12

1M

J1_1(KSEN)

14

S

4

C21 8

R10

R8 ULN2004

1

D IN ADG201A U4A

C4

154K +12V

J2_26(R/F)

+

1M

R15

-KV

-

3

U4B 15 16

10

4

ZD3,ZD4À» 1N4744¿¡¼ 1N4746·Î ±³Ã¼ÇÔ 2001³â 8¿ù 29ÀÏ

U1A TL082A

R9 10K

U6

7

44

EVA-HF325/525 Troubleshooting

Checking point

Value

TP2

Accuracy limit kHz

39 ~ 41kHz

Adjust point : VR1 ④ test point : -kV, +kV feedback signal waveform +kV feedback (see waveform 10) -kV feedback(see waveform 11) 1V ≒ 10kV ⑤TP1(dead time control) Adjust point : VR3 (see waveform 12, when exposure) ⑥TP3,TP4 : TL594 output point kV data low(see waveform 13) kV data high(see waveform 14) E1 is 90 degree phase ahead of E2 ⑦KDR1,KDR4 (see waveform 15) KDR1,4 is 90 degree phase ahead of KDR2,3 KDR1 ~ KDR4 signal input to IPM DRIVE BOARD ⑧ test point : -mA, +mA feedback signal waveform +mA feedback (see waveform 16) -mA feedback(see waveform 17) 1V ≒ 20mA BECAREFUL WHEN YOU CHECKING “KOUT SIGNAL”.

IF

ELECTRICAL

SHORT HAPPEN, U27(AD7224) IN HT CONTROL CPU BOARD WILL BE BROCKEN.

9. MAIN CARD BOARD DRAWING J3(3P) J4(4P) J5(11P)

J6(8P)

J7(10P) J8(4P) J9(7P)

COMED Medical Systems Co., Ltd.

45

EVA-HF325/525 Troubleshooting

J11(5P) J10(6P)

J14(10P) J1(15P) J3

J7

TUBE2 AC220V TUBE2 AC220V

J4

J5

J6

TUBE2 READY TUBE2 X-RAY FLUORO MODE GND

J8

AC220V AC220V AC12V AC12V IPM AC220V IPM AC220V J9 AC220V(N) AC220V(N) DC24V-1 GND DC 24V-2

J2(15P) J15~J18(NOT USED) J19(6P) J13(7P) J12(7P) J11

J14

BUCKY1 BUCKY1 BUCKY2 BUCKY2 BUCKY3 BUCKY3 TUBE1 TEMP TUBE1 TEMP J12 TUBE2 TEMP TUBE2 TEMP

J19

AC220V(N) AC220V(N) AC60V AC60V

J13 AC220V AC220V AC15V AC15V AC20V AC20V RTN AC20V

ROTOR ON POWER ON J10 220/40 CHANGE TUBE SELECT ROTOR SENSOR GND AC110V AC110V

DC24V-2 GND PRECHARGE CHARGE MAIN

GND +5V KDR4 KDR3 IPM FAULT AC220V AC220V

-KV +KV +MA -MA GND SMALL COM LARGE TUBE2 AC220V TUBE2 AC220V AC220V AC220V +12V GND +12V +5V GND +5V

GND +5V KDR2 REFER JOBKDR1 CODE002 IPM FAULT AC220V AC220V

J1,J2 :

DISCHARGE4 DISCHARGE3 DISCHARGE2 DISCHARGE1 CHARGE SENSE GND

10. TECHNICAL IMFORMATION 10.1 MAIN SIGNAL DRAWING

COMED Medical Systems Co., Ltd.

46

EVA-HF325/525 Troubleshooting

CONSOLE

DISPLAY AND MEMBRANE KEY

CONTROLLER CONSOLE CPU BOARD COMMUNICATION CABLE

HT CONTROL CPU BOARD

KOUT

Feedback HT CONTROL CONTROL BOARD

+

TUBE

―

IPM driver e

IPM

FILAMENT DRIVEFOUT BOARD

HV cable RELAY POWER BOARD

HV transformer + terminal Filament power

MAIN POWER BOARD

T1 and T2 ROTOR power

10.2 MAIN SIGNAL EXPLANATION 10.2.1 communication Console display CPU and HT Control CPU communicate with cable.

COMED Medical Systems Co., Ltd.

47

EVA-HF325/525 Troubleshooting

This communication included below like as.

kV

mA

1ms

8bit

Time

1ms

1ms

8bit

Bucky

8bit

8bit

Console display CPU give kV data,mA data,time data,bucky select data to HT control CPU. And HT control CPU re-give same data to Console display CPU. So, Console display CPU check data error or good. If error detected, display EROOR code. Ex) KV data error(E16,E17), mA data error(E18,E19), time data(E20) … Pic. Console display CPU board

TP1(Txd), TP2(Rxd)

Pic. HT control CPU board TP1(Txd) TP2(Rxd)

COMED Medical Systems Co., Ltd.

48

EVA-HF325/525 Troubleshooting

TP3(Txd) TP4(Rxd)

TP3

TP4

TP1

TP2

If push KV up/down key in Console membrane. mA kV

mA , time, bucky select signal not transfer. Only kV data data transfer cf . kV data 8bit = 2 8 = P

P

256 information

COMED Medical Systems Co., Ltd.

49

EVA-HF325/525 Troubleshooting

kV data(138+1 = 139)

KV-SET data “139” in Console display cpu board give to HT control cpu board And, HT control cpu give data to AD7224 When communicate HT control cpu board with console display cpu board, sometimes error detected by electrical noise. 1. Check ground state. 2. Check shield state of communication cable. 3. Check noise of Power line.

]

10.2.2 Exposure data When exposed, kV data, mA data input to AD7224 with digital value( 0 – 256 information). And then, analog value(Kout and Fout) output from AD7224.

COMED Medical Systems Co., Ltd.

50

EVA-HF325/525 Troubleshooting

Pic. HT control CPU board

AD7224(8-Bit DAC with Output Amplifiers) ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD7224 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.

COMED Medical Systems Co., Ltd.

51

EVA-HF325/525 Troubleshooting

Analog Kout data give to HT control control board

Analog Fout data give to Filament drive board

Pic. HT control cpu board

COMED Medical Systems Co., Ltd.

52

EVA-HF325/525 Troubleshooting

TP5 : Analog Kout data TP6 : not used TP7 : Analog Fout data AD7224 If you want to see waveform TP5,TP7(when push x-ray s/w) see Chap.6 6 and7 waveform. BECAREFUL WHEN YOU CHECKING “FOUT SIGNAL”.

IF

ELECTRICAL

SHORT HAPPEN, U25(AD7224) IN HT CONTROL CPU BOARD WILL BE BROCKEN. BECAREFUL WHEN YOU CHECKING “KOUT SIGNAL”.

IF

ELECTRICAL

SHORT HAPPEN, U27(AD7224) IN HT CONTROL CPU BOARD WILL BE BROCKEN

10.2.3 Feedback signal Pic. Ht control control board

1

2 1. KOUT signal

3

4 2. Feedback signal

COMED Medical Systems Co., Ltd.

53

EVA-HF325/525 Troubleshooting

3. TL594 output signal

4. IPM drive signal

TL594(494) receive two signal (KOUT(-ini) and feedback signal(+ini))and give output signal(E1,E2) to IPM drive. If KOUT(analog data) is much, width of TL594 output signal would be widen. TL494(594) Technical data

COMED Medical Systems Co., Ltd.

54

EVA-HF325/525 Troubleshooting

COMED Medical Systems Co., Ltd.

55

EVA-HF325/525 Troubleshooting

10.

JOB CODE IMFORMATION

ERROR CODE OR

DESCRIPTION

JOB CODE

ERROR NOT POWER ON/OFF E16/17/18/19/20/21/22 E26/27 E28 E29/E30

Power on/off circuit abnormal

JOB CODE 001/002/003/004

Calibration and APR data broken

JOB CODE 020/021

Rotor Rotating abnormal

JOB CODE 022

Charge and discharge abnormal

JOB CODE 008/009/010

Filament drive board abnormal

JOB CODE 007/023

E32

Tube temperature abnormal

JON CODE 024

E00

IPM fault

JOB CODE 025/026

Only display “Initializing.” NOT KEY UP/DOWN

Not communication control and console Membrane key abnormal

COMED Medical Systems Co., Ltd.

JOB CODE 002/004/005/006/007 JOB CODE 003

56