Multi Media Projector Service Manual EMP-S1 (SVGA) EMP-S1H (SVGA) EMP-S1/S1H INTRODUCTION This Service Manual descr
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Multi Media Projector
Service Manual
EMP-S1 (SVGA) EMP-S1H (SVGA)
EMP-S1/S1H
INTRODUCTION This Service Manual describes of the hardware information which is necessary for the smooth field service of the MULTI MEDIA PROJECTOR EMP-S1/S1H (SVGA) and the trouble shooting. As the primary technologies modification will be supplied with the Technical Information bulletins, you may update this manual.
HOW TO USE THE SERVICE MANUAL Since the service manual describes the topics which may be required in the field maintenance, you may utilize this for repair or diagnosis of failures. The contents are as following. Before you start the maintenance service, read every safety precautions and observe safety precautions and observe safety rules. precautions : SAFETY,MAINTENANCE,PERSON chapter 1 : GENERAL (PART NAME, SYSTEM FUNCTION, SPECIFICATION, etc.) chapter 2 : THEORY OF OPERATION (HARDWARE,INTERNAL CONNECTION, FUNCTION OF UNITS, etc.) chapter 3 : TROUBLE SHOOTING chapter 4 : DISASSEMBLE & ASSEMBLE (ASSEMBLY PROCESS FOR MAIN FRAME) chapter 5 : Appendix
VCCI RADIO FREQUENCY INTERFERENCE SELF RESTRICTION This product is the type 1 information equipment and uses radio frequency energy and fully complies with the limits for the specifications in the computer information equipment radio interference regulation (VCCI rules). If not installed and used properly manufacturer’s instructions, may cause interference to radio and television reception.
TRADEMARK EPSON is the trademark of SEIKO EPSON CORPORATION.
NOTICES 1. This document should not be reproduced in whole or in part without the written permission of SEIKO EPSON CORPORATION. 2. Any of description in this document is the subject to change without notice in future. 3. The information and specification in this document are the most up-to-date at the time of publication. However, we are unable to guarantee the accuracy of printed material after the date of publication. In case of any mistake or lack of description, please kindly notify us to correct. 4. Any influence by utilizing the document may be out of our responsibility regardless the item 3 above. 2004 SEIKO EPSON CORPORATION
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Manual Revision History History
Date
Detail of change
Rev.A
May 1, 2003
Initial draft
Rev.B
Feb 26,2004
Addition of EMP-S1H
Rev.C
June 10,2004
Correction of the clerical error of "SAFETY TESTING"
Service memo Make a note here of important technical information from Technical Information bulletins.
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SAFETY INSTRUCTIONS 1. MAINTAINING OPERATOR SAFETY (1). PREVENTING ELECTRIC SHOCKS • Turn off the power switch and disconnect the power cord from the AC outlet before carrying out any disassembly and assembly work on this projector. • If power needs to be supplied to the projector while the cover is removed (such as when making adjustments), take off any metallic objects such as wristwatches, shirt cuff buttons, rings and tie pins which may pose the danger of coming into contact with the projector. (2). PREVENTING INJURY • Projector components such as the lamp inner housing and the area around it may still remain hot after the power has been turned off, even when the cool-down period is compete. Furthermore, if removing the cover in order to carry out adjustments while power is being supplied to the projector, be careful not to touch the fans (intake and exhaust). • Always wear gloves when disassembling and reassembling the scanner in order to avoid injury from metallic parts with sharp edges. • Do not look directly into the projector's lens while power is being supplied to the projector, otherwise injury to the eyes may occur. (3). PREVENTING ACCIDENTS • Place the projector on a stable, level surface when carrying out any repair or adjustment work, to prevent the projector and its components from slipping and falling down. Furthermore, do not place any tools or projector components on top of or underneath the projector. • Avoid working on the projector in places where other people might receive injuries from touching the projector while it is in a state of disassembly. Furthermore, do not leave the projector unattended in the workplace at such times. • When turning on the projector's power, always use the accessory power cord to connect the projector to the power supply, and always make sure that the power supply is properly grounded.
2. MAINTAINING THE PROJECTOR IN GOOD CONDITION (1). PREVENTING STATIC ELECTRICAL DAMAGE • When disassembling and assembling the projector, always use a grounding strap and a grounding mat. Furthermore, when replacing electrical circuit components (such as circuit boards and optical engine), touch the static-proof bag containing the new parts against a metallic section of the projector before removing the component from the static-proof bag. (2). USE OF GENUINE PARTS • When replacing the structural components inside the projector (including the lamp inner housing), use only replacement parts supplied by EPSON and listed in the projector's Parts List. • Use the accessory power cord and interface cable provided with the projector. (3). SAFETY TESTING • The following tests should be carried out on repair parts used in the LCP. * These are simplified tests that can be carried out at a repair centre that is not equipped with full safety testing equipment. (3-1).Test items • Insulation resistance test • Illumination check
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(3-2).Testing procedure Carry out testing in the order given below. Repair
Insulation resistance test
Illumination check
End
Safety inspections
(3-3).Testing methods 1). Insulation resistance test Testing apparatus: Insulation ohmmeter (Rating: 500 V/100 MΩ) Check item
Inspection method
Standard/Judgment level
Insulation ohmmeter
Insulation resistance should be 10 MΩ or more
Insulation ohmmeter settings Line terminal Ground terminal
Display
1. Set the range selection switch to 500 V. 2. Connect the black lead wire to the ground terminal. 3. Connect the red lead wire to the line terminal. 4. Connect the black lead wire (crocodile clip) to c in order to measure the insulation resistance (1) (between a and c) in the diagram below. 5. Next, insert the probe of the red lead wire into a. 6. Set the measure switch to LOCK, and then measure the insulation resistance after 1 minute. 7. Check that the insulation resistance after 1 minute is 10 MΩ or more. 8. Next, measure the insulation resistance at (2) (between b and c) in the diagram below in the same way as for (1). 9. Check that the insulation resistance at (2) after 1 minute is 10 MΩ or more.
Measure switch
Power supply lines
Range selection switch
(1) Projector AC inlet (2)
! Caution: Because high voltages (500 V) are present, do not touch the probe during testing.
c
Exposed metal part of projector
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Computer connector
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EMP-S1/S1H
2). Illumination check • Test conditions: Input a PC or video signal to the LCP and check the illumination for about 5 minutes. • Judgment: Projector should operate normally with no smoke or fire. 3). Other • Check that the connectors at both ends of the power cord are not dirty or bent, and clean them if they are dirty. Furthermore, if there is any noticeable discoloration on the power cord, it should be replaced (to prevent the chance of fire due to flashover). • When connecting the connector cables and interface cables inside the projector, make sure that the cable connectors are pushed on as far as they will go. • To prevent problems caused by dirt getting into the optical system, always disassemble and assemble the projector in an area which is free from floating dust. • When disconnecting the cable connected to CN400 of the MA board assembly and CN600 of the IF board assembly from the board connectors, release the connector locks. (When releasing the connector lock, push up both ends of the connector simultaneously with tweezers or like.) CN400
Enlarged view
Locked
Unlocked
• When disconnecting the three FPC cables for the light valves from their connectors, release the connector locks first. Locked
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connector lock
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Unlocked
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EMP-S1/S1H
3. NECESSARY REQUIREMENTS FOR SERVICE TECHNICIANS • Service technicians who carry out repairs and servicing work on the EMP-S1/S1H must possess the following knowledge and abilities. • The service technician must have read and fully understood the contents of this Service Manual (such as the working procedures). • The service technician must have a fundamental knowledge of working with electricity (safety procedures, knowledge regarding electrical circuits, and knowledge regarding static electricity).
4. OTHER • Any questions regarding repairs and service to this projector (such as supply of parts and the contents of this Service Manual) should be directed to EPSON at the address below. Furthermore, information regarding matters such as technical changes to the projector are released when necessary in the form of Technical Information bulletins, and these should be referred to also. SEIKO EPSON CORPORATION ADDRESS 4897 OH-AZA SIMAUCHI,MATSUMOTO-SHI, NAGANO-KEN,390-8640 JAPAN TEL. 81-263-48-5437 FAX. 81-263-48-5680 SECTION VD,CS Quality Assurance Department
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Contents Chapter 1 Product General 1.1. PRODUCT GENERAL ............................................................................ 1-2 1.2. PART NAME ........................................................................................... 1-3 1.2.1. Outside ............................................................................................ 1-3 1.2.2. Internal components........................................................................ 1-6 1.2.3. Remote control ................................................................................ 1-7 1.3. SPECIFICATIONS .................................................................................. 1-8 1.4. INTERFACE SPECIFICATIONS........................................................... 1-10 1.4.1. Computer Interface, Monitor Out Interface.................................... 1-10 1.4.2. RS-232C........................................................................................ 1-11 1.4.3. Video Interface .............................................................................. 1-11 1.4.4. S-Video Interface........................................................................... 1-11 1.4.5. Audio input Interface ..................................................................... 1-12 1.5. EXTERNAL VIEWS .............................................................................. 1-13
Chapter 2 Theory OF Operation 2.1. OVERVIEW OF HARDWARE................................................................. 2-2 2.1.1. Circuit System Component Connection Diagram............................ 2-3 2.1.2. Circuit Block .................................................................................... 2-4 2.1.3. Optical Engine ................................................................................. 2-5 2.1.4. Lamp inner unit................................................................................ 2-6 2.2. MA BOARD ASSEMBLY ........................................................................ 2-8 2.2.1. Appearance of MA Board ................................................................ 2-8 2.2.2. MA Board Circuit Block ................................................................... 2-9 2.2.3. Overview of Operation................................................................... 2-10 2.3. IF BOARD ASSEMBLY......................................................................... 2-11 2.4. RC BOARD ASSEMBLY....................................................................... 2-12 2.5. LED INDICATOR .................................................................................. 2-13 2.6. POWER SUPPLY UNIT ........................................................................ 2-15 2.7. BALLAST UNIT..................................................................................... 2-18 2.8. SPEAKER ............................................................................................. 2-19 2.9. TEMPERATURE CONTROL ................................................................ 2-20 2.9.1. Sensors and Switches................................................................... 2-20 2.10. FAN OPERATION............................................................................... 2-23
Chapter 3 Troubleshooting 3.1. BEFORE CARRYING OUT TROUBLESHOOTING ............................... 3-2 3.1.1. Troubleshooting Tools and Equipment............................................ 3-2 3.1.2. Field Replacement Parts ................................................................. 3-2 3.2. ENTRY.................................................................................................... 3-3 3.2.1. Exterior Checking ............................................................................ 3-4 3.2.2. Internal Cable Check....................................................................... 3-5 3.2.3. Power Supply ON/OFF.................................................................... 3-7 3.2.4. Image display and image quality ..................................................... 3-9 3.2.5. Audio output .................................................................................. 3-11
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3.2.6. Control panel ................................................................................. 3-12 3.2.7. Remote control operation .............................................................. 3-13 3.2.8. Other ............................................................................................. 3-14
Chapter 4 Disassembly & Assembly 4.1. DISASSEMBLY AND ASSEMBLY.......................................................... 4-2 4.2. PROJECTOR DISASSEMBLY AND ASSEMBLY .................................. 4-4 4.2.1. Lens Cap Unit.................................................................................. 4-5 4.2.2. Lamp Inner Unit............................................................................... 4-6 4.2.3. Air Filter ........................................................................................... 4-7 4.2.4. Foot Unit.......................................................................................... 4-7 4.2.5. R. Control Holder............................................................................. 4-8 4.2.6. Case, Upper .................................................................................... 4-9 4.2.7. Speaker ......................................................................................... 4-10 4.2.8. SW Board Assembly ..................................................................... 4-12 4.2.9. Shield Plate, Lamp ........................................................................ 4-13 4.2.10. Shield Plate, MA.......................................................................... 4-14 4.2.11. Panel, IF / Label, IF ..................................................................... 4-14 4.2.12. Main Board Fixing Plate, MA....................................................... 4-18 4.2.13. IF Board Assembly ...................................................................... 4-19 4.2.14. Exhaust Fan Assembly................................................................ 4-20 4.2.15. Lamp Thermistor/Duct, Exhaust Inner/Fan 80/Duct, Exhaust Outer4-21 4.2.16. RC Board Assembly .................................................................... 4-21 4.2.17. Frame, MA Left/Shield Plate, LOW ............................................. 4-22 4.2.18. Power Supply / Ballast Assembly................................................ 4-22 4.2.19. Power Supply / Ballast ................................................................ 4-24 4.2.20. Power Supply Fan ....................................................................... 4-25 4.2.21. Optical Engine ............................................................................. 4-27 4.2.22. Focus Ring .................................................................................. 4-28 4.2.23. Projection Lens Unit .................................................................... 4-28 4.2.24. Fan 100 ....................................................................................... 4-29 4.2.25. Duct, Intake / Frame, MA Left ..................................................... 4-30 4.2.26. Lamp Cover Detection Switch ..................................................... 4-31 4.2.27. Handle ......................................................................................... 4-32 4.2.28. Foot Rubber ................................................................................ 4-32
Chapter 5 Appendix 5.1. AS (After Service) menu ......................................................................... 5-2 5.1.1. How to display AS (After service) menu.......................................... 5-2 5.1.2. Initializing AS (After Service) menu................................................. 5-4 5.1.3. Software DIP switch ........................................................................ 5-4
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Chapter 1 Product General
EMP-S1/S1H
1.1. PRODUCT GENERAL The EMP-S1/S1H Multimedia Projector is an SVGA-compatible presentation tool developed to enlarge and project color images from personal computers, video equipment (VCRs, video cameras, video disc players, etc.) . Features of the Projector • Brilliant, attractive images Having a large-diameter lens, high-luminance lamp inner housing (UHE-132W) and optical block, the EMP-S1 can project images at a brightness of up to 1200lm. Having a large-diameter lens, high-luminance lamp inner housing (UHE-130W) and optical block, the EMP-S1H can project images at a brightness of up to 1400lm. • Full-color, high-resolution capabilities The projector has three transparent LCD panels (R, G and B), each with 480,000 pixels which can project images at resolution of up to 800 x 600 dots (approximately 14.40 billion pixels). • Quiet operation Quiet operation at levels of 33dB. • Functions for Enhancing Projection (1). Easy to Operate The accessory remote control can be used for operations such as Freeze and E-Zoom. When the remote control is not used, it can be contained in the rear of the projector. (2). Keystone correction The projector can easily correct keystone image distortion.) (3). Automatic setup When projecting a computer image, the projector detects the signal from the connected computer and automatically adjusts to the optimum projection conditions. (4). Color mode function The images can be projected at the optimum image quality for the projecting environment by selecting the image quality mode from one of five preset settings.
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EMP-S1/S1H
1.2. PART NAME 1.2.1. Outside • Main unit
Speaker Control panel Remote control light-receiving area
Air exhaust vent
Focus ring Handle
Lens cover
Foot unit
Figure 1-1
Air filter
Suspension bracket fixing points (3 points)
Lamp lid
Handle
Figure 1-2
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EMP-S1/S1H
Remote control light-receiving area Input and output connectors
Remote control forder
Security lock
Power inlet
Figure 1-3
• Input and output connectors
Video port
S-Video port
S-Video
Video
Computer/ Compornent Video port
Computer/ Compornent Video
L-Audio-R
Monitor out port
Monitor Out
RS-232C
Audio in port
RS-232C port
Figure 1-4
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EMP-S1/S1H
• Control Panel [ ] [ ][ ][ ] buttons Used as the up/down button to select the item when the Configuration menu or Help is being displayed. Used as the left/right button to adjust the set value when the Configuration menu or Help is being displayed. [ ] [ ] : keystone correction buttons Press to correct keystone distortion in images. [ Wide ] [ Tele ] : zoom buttons Used to adjust the projection size.
[Power] button Turns the projector on and off.
[Menu] button Displays or hides the configuration menus. [Source] button Switches the input source between the Computer/Component Video port, S-Video port and Video port each time the button is pressed.
Power indicator Flashes or lights in different colours to indicate the operating status of the projector.
Warning indicator Flashes or lights in different colours to alert you to problems with the projector. [ ] button Accepts a menu item or advances to the next screen or menu when viewing configuration menus.
[Esc] button Stops the current function. Displays the previous screen or menu when viewing configuration menus.
Figure 1-5
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EMP-S1/S1H
1.2.2. Internal components Speaker
Control panel Upper case unit
MA board assembly
Power supply unit Ballast unit
Optical engine
Exhaust fan
Intake fan
Lower case IF unit
IF panel
Figure 1-6
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EMP-S1/S1H
1.2.3. Remote control • Remote control [E-zoom] button [ ] : Enlarges parts of images without changing the size of the projection area. [ ] : Reduces the parts of images that have been enlarged using the [ ] button.
Remote control light- emitting area Outputs remote control signals.
[Source] buttons [Computer]: Switches to the signal source being input to the Computer/Component Video port. [S-Video/Video]: Switches between the signal source being input to the S-Video port and the Video port.
[Power] button Turns the projector power on and off.
[Color Mode] button Selects the colour mode. The colour mode changes in the order of Dynamic, Presentation, Theatre, Living Room and sRGBg each time the button is pressed.
[Aspect] button Changes the aspect ratio of images from 4:3 to 16:9. [ ][ ][ ][ ] button Selects menu items and setting values.
[Esc] button Stops the current function. Displays the previous screen or menu when viewing configuration menus. [Menu] button Displays or hides the configuration menus.
[Auto] button Use this button to automatically adjust computer images to their optimum settings when automatic setup has been set to "OFF". [Freeze] button Keeps the current computer or video image on the screen. [A/V Mute] button Momentarily turns off the audio and video.
Figure 1-7
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EMP-S1/S1H
1.3. SPECIFICATIONS Model name
EMP-S1
EMP-S1H
Projection System
RGB Liquid Crystal Shutter Projection System
←
Projection Method
Front / Rear / Ceiling Mount
←
Size
0.5inches with MLA (x3)
←
Driving Method
Poly-silicon TFT Active Matrix
←
Pixel number
480000 dots (800x600) x3
←
Native Resolution
SVGA
←
Aspect ratio
4:3
←
Pixel Arrangement
Stripe
←
Manual focus
←
F-number
1.4
←
Focal length
16.6mm
←
Zoom ratio
No Optical Zoom Digital Zoom 1.0 to 1.2
←
Type
132W UHE
Life
2000H
←
Dichroic Mirror Separation & Prism combine Method
←
Screen size (Projected Distance)
30 to 300inch [0.9 to 11.3m]
←
Keystone correction ratio
9.6 : 1
Brightness
1200 ANSI lumens
← 1400 ANSI lumens
Contrast
400 : 1
500 : 1
Specification of main parts
LCD
Projection Lens Type
Lamp Optical System
130W UHE
Brightness Uniformity
85% (Typ.)
←
Color reproduction
Full Color (16.77million colors)
←
Sound output
1W Monaural
←
Effective Scanning Frequency Range (Analog)
Pixel Clock
13.5MHz to 162MHz
←
Horizontal
15KHz to 92KHz
←
Vertical
50Hz to 85Hz
←
Adjustment Function
Projector / Remote Control
Keystone (Vertical)/ Brightness/ Contrast/ Tint/ Saturation/ Sound/ Input signal etc.
←
Tilt Angle
0 to 10 degrees
←
Keystone Correction
Vertical: -15 to +15 degrees,
←
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EMP-S1/S1H
Analog RGB I/O
Display Performance
Native
800 x 600 dots
←
Resize
1024 x 768 dots / 640 x 480 dots
←
Input Signal
Signal type
Separate signal
←
Video Signal
Analog (0.7Vp-p, 75ohm/ Mac0.714Vpp, 75ohm)
←
Sync. Signal
Separate (positive & negative, bi-polarity 2-5Vp-p)/ Composite (positive & negative, bipolarity 2-5Vp-p)/ Sync-on-green (negative, 0.3Vp-p)
←
Audio Signal
500mVrms / 47Kohm
←
Video
Mini D-sub 15pin x1
←
Audio
RCA x2 (White/Red)
←
Output Signal
Signal type
Not analog-RGB standard level
←
Output Terminal
Video
Mini D-sub 15pin x1
←
Audio
Stereo mini jack
←
Display Performance
NTSC: 550 line, PAL: 550 line (Depend on observation of the multi burst pattern)
←
Input Signal
Video Standard
NTSC / NTSC4.43 / PAL / M-PAL / NPAL / PAL60 / SECAM
←
Video signal
Composite Video (1.0Vp-p/ Sync. negative, 75ohm) / S-Video (Luminous 0.714Vp-p, Chrominous 0.286Vp-p, 75ohm) / Component Video (Analog Y level 0.7V 75ohm/ Cr Cb level +/-0.35V, 75ohm/ sync. negative 0.3V or 3-state+/-0.3V on Y) / Video-RGB (0.7Vp-p, 75ohm/ Mac 0.714Vp-p, 75ohm)
←
Audio signal
500mVrms / 47Kohm
←
Video
Composite Video: RCA x1
←
S-Video: Mini DIN
←
Component Video: Mini D-sub 15pin (in common with Analog RGB connector)
←
Video-RGB: Mini D-sub 15pin (in common with Analog RGB connector)
←
Input Terminal
Video I/O
Input Terminal
Audio
RCA x1
←
USB connector series B x1 (for mouse, K/B, control)
←
Operating Temperature
5°C to 35°C
←
Cool-down period
about 20 seconds
←
Start-up period
about 40 seconds
←
EMP-S1 (100V)
100-120V ±10%, 50/60Hz AC
EMP-S1 (200V)
200-240V ±10%, 50/60Hz AC
← -
JAPAN
EMP-S1 (100V)
180W (5W at Srandby mode)
Except JAPAN
EMP-S1 (100V)
100 - 120V 2.7A 50/60Hz
200W (5W at Srandby mode)
EMP-S1 (200V)
200 - 240V 1.3A 50/60Hz
200W (5W at Srandby mode)
Control I/O
I/O Terminal
Power Supply Voltage Power Consumption
SEIKO EPSON
200W (5W at Srandby mode)
-
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EMP-S1/S1H
Dimension
Exclude Projection lens & Feet
265 (D) x 370 (W) x 106 (H) mm
←
Maximum dimension
265 (D) x 370 (W) x 114 (H) mm
←
Weight
Approx. 7.0lbs / 3.2Kg
←
Fan Noise
33dB
←
Accessories
SEIKO EPSON
Power cord
1.8m
←
Computer cable
1.8m, Mini D-sub 15pin (Male) - Mini D-sub 15pin (Male)
←
Audio cable
No
←
Mouse cable
No
←
Remote Control
Card type
←
EPSON Presentation Remote Control Kit
attached
←
Soft Carrying Bag
attached
←
Air filter
1 pcs.
←
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EMP-S1/S1H
1.4. INTERFACE SPECIFICATIONS
S-Video
Computer/ Compornent Video
Video
Monitor Out
L-Audio-R
RS-232C
Figure 1-8
1.4.1. Computer Interface, Monitor Out Interface HD D-sub, 15pin CN100: Computer Interface 7513S-15G2-08 CN102: Monitor Out Interface 7513S-15G2 11 6 1
Pin No.
15 10 5
Pin name
Pin No.
1
Red video signal
9 (None)
(No pin)
2
Green video signal
10
Sync GND
3
Blue video signal
11
GND
4
GND
12
SDA
5
GND
13
Horizontal sync/ composite sync signal
6
GND
14
Vertical sync
7
GND
15
SCL
8
GND
SEIKO EPSON
Pin name
1-11
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EMP-S1/S1H
1.4.2. RS-232C D-Sub, 9pin CN3000 7511P-09G2 1 6
5 9
Pin No.
Signal name
1
CD
2
RXD (Receive Data)
3
TXD (Transmit Data)
4
DTR
5
GND
6
DSR
7
RTS (Request To Send)
8
CTS (Clear To Send)
9
RI
Pin No.
Signal name
1
GND
2
CVBS
Pin No.
Signal name
1, 2, 6
GND
3
Y signal input
4
C signal input
5
Input detect pin
1.4.3. Video Interface
1
CVBS (Yellow) J200 HTJ-032-05BY
2
CVBS (Yellow)
DGND
1.4.4. S-Video Interface 4 pin CN200 TCN7708-012021
4
3
2
1
6
SEIKO EPSON
5
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EMP-S1/S1H
1.4.5. Audio input Interface CN200: Audio Input (S-Video, BNC) Interface HTP-252V1-06 4
Pin No. 1, 3
GND
2
Audio input R
4
Audio input L
1
R (Red)
2
3
L (White)
Signal name
DGND
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EMP-S1/S1H
1.5. EXTERNAL VIEWS
264.7
369
87.6
58
42.3
1
58.9
62.4
76.6
5.5
18.3
108.6
11.1
104.4
170.
115
127
79.5
88.5
92
M4x8-3
28
84.5
80
12.6
114
41
124
13.9
65.1
73.9
369
106.5
14.4
133.1
80.1
42
15.6
44.5
18.2
25
unit: mm
Figure 1-9
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Chapter 2 Theory OF Operation
EMP-S1/S1H
2.1. OVERVIEW OF HARDWARE The hardware for the EMP-S1/S1H can basically be divided into two sections: the optical engine and the circuit system. This section of the manual describes the configuration block diagram or the hardware and gives an outline of the functions. The optical engine and MA board in the dotted lines are single parts.
Power supply unit AC input Circuit DC voltage generator Ballast output generator
Circuit initial setting operations and interface control Internal operation control (sensors, cooling fan, speaker, remote control, etc.) R/G/B video signal generation
Computer/Component Video S-Video Video Audio Monitor out RS-232C
Ballast unit For lamp inner unit AC voltage Control panel FAN 100 *1 RC receiver sensor
Light valves R/G/B
Prism R/G/B integration
Projection lens uni (focus)
FAN 80 *2
Lamp inner unit
Light guide unit
*1: The FAN 100 cools the R, G and B light valves (LCD panels).
132 W
Light source divided into 3 components (R, G and B) by lenses, filters and mirrors.
*2: The FAN 80 mainly exhausts heat from the lamp inner unit. *3: During repair work, the section enclosed by the dotted lines should be handled as a single unit.
Figure 2-1
Overview of display operation 1). The MA board receives RGB/Component signals from the Computer/Component Video interface. The MA board receives video signals (S-Video or Video) from the Video/S-Video interface. (Analog signals are converted to digital signals by the MA board.) 2). The display signals (in digital format) are momentarily stored in the video memory on the MA board, and then the DR board generates signals to drive the R, G and B light valves. 3). The R, G and B light valves control the amount of light which passes through the valves. 4). The light which passes through the light valves is integrated by the prism and is then projected as an image via the projection lens unit.
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EMP-S1/S1H
2.1.1. Circuit System Component Connection Diagram The circuit system is shown in the following diagram. The various components are connected to the MA board which is the central component of the system. RC Board (F) Speaker CN1 2pin
3pin
CN1701 CN603
CN1500 GREEN
Fan80 CN704
CN1600 RED
Fan100
CN1400 BLUE CN601
3pin CN702
CN701
CN1800
3pin
2pin L a m p l i d detection switch
4pin
34pin
Thermistor LAMP
LAMP Power supply
2pin Control panel
24pin
CN400 CN602
5pin
Ballast
CN600
S-VIDEO IN AUDIO IN CN300 J200
BNC IN CN100
PC OUT CN102
24pin
CN3002
AUDIO OUT CN3001
RS-232C CN3000
REMOTE IC3000
IF board
Figure 2-2
SEIKO EPSON
2-3
Revision:C
SEIKO EPSON
DSUB15
Sync
RGB
DDC
Y/C
2-4
D-Sub9
COM Port
RCAx2
AUDIO
Speaker
RS Driver
TEA6324T(Philips)
Audio Controller
(Micronas) 20.25MHz
DIN4
VPX3226E
Chroma
SCART(SYNC)
"KIMURA" Circuit
Sync Correcter
24LCS21A ( Microchip )
DDC EEPROM
Logic
AMP
RCA
CVBS
3RCA
VIDEO
PC
DSUB15
Sync
RGB
PC/VIDEO I/F Monitor Out
UART
I2C
V PORT
KEY MATRIX
INT
LED
CS/WR/RD
IR
16Mbit MBM29DL163BD ( Fujitsu )
LAMP STATUS POWER ON/OFF
1Mbit
SRAM
PW164B ( Pixelworks )
Main CPU Frame Memory Resizing Frame Rate Conversion Color Space Conversion OSD
Image Processor
FLASH ROM
CS/WR/RD
HUMAN I/F
PSCI(EV9816CB) (SANYO)
ADC 3ch Video Amp. 3ch ADC Sync.Sep. G AD9883A (Analog Devices) PORT
I/F Controller Memory Control KeyScan Download
Vol Controller
UART
Video SW BA7657F (ROHM)
MA Board
AC In
NRS
LAMP Ballast
Thermister
LCCOM
POWER SUPPLY
Power Supply Circuit
FAN Driver
AMP
AMP
Level Shifter
Serial DAC/ADC ADT7518ARQ (Analog Devices)
M62334GP ( MITSUBISHI )
Serial DAC
GAUGE4
Driver ASIC DEC Driver
PANEL DRIVER BLOCK
DEC Driver
DEC Driver
EMP-S1/S1H
2.1.2. Circuit Block
The control circuits are shown in the following diagram. The various circuits are connected to the MA board which is the central component of the system.
Figure 2-3
Revision:C
EMP-S1/S1H
2.1.3. Optical Engine The optical system consists of four blocks (lamp inner unit, light guide unit, POP unit and projection lens). A set of four units is called an optical engine.
projection lens
POP unit lamp inner unit
Light guide unit
Figure 2-4
Optical system drive block Optical engine Projection lens
Light valve R Lamp inner unit (light source)
Light valve G
Light valve B Light guide unit
Ballast power supply
Prism ( R/G/B integration )
MA board
Figure 2-5
! Caution: • The lamp inner unit, light guide unit, pop unit, and projection lens are handled together under the name of optical engine. • Do not subject the optical system components to any shocks, and do not disassemble the light guide unit, otherwise color distortion may occur. • Each component is adjusted at the factory for installation in its particular position. • Furthermore, the data which is used to compensate for optical system characteristics is stored on the MA board. Accordingly, do not individually replace any of the components with components from other optical engines.
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Revision:C
EMP-S1/S1H
Table 2-1.Component Functions Component name
Function/Other
Lamp inner unit
It is a light source for projecting an image.
Light guide unit
The light guide unit disperses the light from the light source via lens arrays A and B in order to provide uniform illumination. In addition, a UV filter removes any harmful ultraviolet light from the LCD. After this light is polarized, it is then split into 3 spectrums (R, G and B).
POP unit
The intensity of the distributed components of the RGB light is controlled by means of the light valve. The prism unit integrates the red, green and blue light and sends it through the projection lens.
Projection lens
The image condensed by the prism is projected.
2.1.4. Lamp inner unit This unit includes the lamp inner unit (EMP-S1 is UHE-132W. EMP-S1H is UHE-130W.) and ballast power supply connector. The lamp is a consumable part fastened to the bottom of the projector body with 2 screws. The luminance of the lamp inner unit becomes lower over time as the lamp is used. The maximum degree of luminance is obtained when the lamp is first being used, but after approximately 2000 hours of usage time, the luminance will drop to about half of this.The ballast power supply connector is used to supply the AC voltage for driving the lamp to the ballast unit. The lead wires are connected to the lamp. Ballast power supply connector
Figure 2-6
As mentioned above, the luminance of the lamp inner unit becomes lower over time as the lamp is used. This projector's lamp has an operating life of approximately 2000 hours, but it is recommended that you replace the lamp inner unit before the full 2000-hour period has been reached if it seems that the luminance of the lamp is very low during actual use.
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EMP-S1/S1H
The cumulative operating time for the lamp inner unit is stored in IC403 (I/F Controller) on the MA board. When the cumulative operating time reaches 2000 hours This represents the end of the useful operating life of the lamp. When the lamp is replaced, the lamp timer should be reset. Use the "Reset Lamp Timer" function in the "About" menu to reset the lamp timer. After replacing the lamp, use the "About" menu to reset the lamp usage time. The circuit diagram is shown in Figure 2-7. MA board
LED
IC403 (IF-Controller)
Power supply ON/OFF Power cut detection Fan control CN602
CN1800
Ballast output ON/OFF Blown lamp detection Lamp Inner unit
Ballast unit
Power Supply unit
Figure 2-7 Lamp Inner Unit Control Circuits
• The EMP-S1/S1H has a sleep mode function that will automatically turn off the lamp if no new signals are input for a continuous period (5, 10 or 30 minutes can be set).
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EMP-S1/S1H
2.2. MA BOARD ASSEMBLY The MA board carries out the core circuit control for the projector. It includes circuits such as a imaging processor (PW465), ROM (flash ROM/EE-PROM), digitizer (ADC, video decoder, etc.), memory (SRAM), interface controller and operation panel control/temperature sensor circuit/fan control/ballast power supply control/RC board interface. The MA board carries out all control operations except for display signal generation and audio control. The MA board is regarded as a single unit for servicing purposes.
2.2.1. Appearance of MA Board (Front)
Figure 2-8
(Back)
Figure 2-9
* Different MA boards are used in the two models of projector, and the boards are not interchangeable.
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2-9
Power Supply unit
CN1800
RC-232C
CN3000
IC404 RS Driver
CN400
Control Panel
IC3000
Remote Controller Receptor (Rear)
IC1
Remote Controller Receptor (Front)
LED Control
CN601
IC303
Audio CN3001
CN2901
IC300 PW164B
12C
R/G/B DO [9 0]
CN300
S-Video
J300
Video
IC403 Chroma
CN702
FAN 100
Frame Memory Resizing Frame Rate Conversion Color Space Conversion OSD
IC1701 Audio Controller
Vol Control
IC301
Speaker
Lamp Cover Detection Switch
CN602
Ballast unit
IC403 IFCPU
CN704
CN701
IC701 Serial DAC
FAN 80
LAMP Thermistor
R/G/B OUT [9 0]
CN100
Computer/ Component Video
IC100 ADC
IC105 PIGMON
IC901 GAUGE4
CN102
Monitor out
IC105 PIGMON
IC1300
IC1200
IC1100
DEC Driver
IC1600
IC1400
L/V
B SVGA
G SVGA
R SVGA
EMP-S1/S1H
2.2.2. MA Board Circuit Block
MA board unit circuit block
Figure 2-10
Revision:C
EMP-S1/S1H
2.2.3. Overview of Operation • Projector control Controls the IF board, RC boards, etc. • Digitalization control of the convert picture signal Converts the image signals (analog RGB) input from Computer and BNC from analog to digital form. • Definition transformation control by the digital filter of the input picture signal Converts the resolution of the image signals input from Video and S-Video with the digital filter. • Frequency transformation control of the input picture signal Transforms the picture signal into the LCD drives picture signal frequency. • On screen display function Displays the menu, EMP link function etc. overlay into the input picture signal. • Remote control Receives the remote control signal and do decodes and control the peripheral circuit by the result. • Lamp control Controls ballast and do the illumination control of the lamp. • LED control Controls various kinds of Indicator of the operation, temperature, lamps. • Cooling control Measures temperature and control the turn of the fan by the temperature condition. • Power supply control The power supply control function corresponding to low consumption electric power-ization.
SEIKO EPSON
2-10
Revision:C
EMP-S1/S1H
2.3. IF BOARD ASSEMBLY This circuit board includes interface connectors and audio control circuits so that external sources such as video equipment and computer audio signal sources can be connected to the projector. The IF board is equipped with the following connectors. S-Video port Video port
S-Video
Video
Computer/ Comportment Video port
Monitor Out port
Computer/ Compornent Video
Monitor Out
L-Audio-R
RS-232C
Audio In port
RS-232C port
Figure 2-11
Figure 2-12 shows the circuit block diagram for the IF board. CN100
S-Video
CN3001
CN200 CN3002
IC1701 Video
Monitor out
J200
Audio in
Audio Controller
CN102
To CN600 on MA board
Figure 2-12 IF Board Block Diagram
The audio inputs from the DVI, computer, video equipment and BNC enter the audio controller (IC1701) once and are then amplified. After this, they are either output to the eternal speaker connected to the Audio Out connector or output to the built-in speaker. The audio controller selects the audio signal output based on the SCL/SDA (serial data/clock) signal that is supplied from the MA board. The sound volume controller adjusts the volume in 20 steps (mute to maximum) based on a signal from the MA board.
SEIKO EPSON
2-11
Revision:C
EMP-S1/S1H
2.4. RC BOARD ASSEMBLY The RC board is equipped with elements that are used to detect (receive) infrared signals transmitted from the remote control. The RC receiver sensors are mounted at the front and on the rear.
RC receiver sensor (Front)
RC receiver sensor (Rear)
Figure 2-13 RC Receiver Sensor
The output signals (serial data) received by the receiver sensors are connected to IC403 (IF-CPU) on the MA board. 1) The MA board uses the serial data received from the remote control (button switches of the remote control) to control the power ON/OFF status, a menu start, etc. 2) The serial signals supplied to the MA board are used to control the display (temporary stop, blank, etc.). 3) The serial signals supplied to the IF board via the MA board are used to control muting, adjust the tone, and adjust the volume. The control block is shown in Figure 2-14. MA board (Front) Infrared Signal
IR Receiver1
CN603
IC403
Remote Control
IR Receiver2 (Rear)
IC3000
Figure 2-14 Remote Control Circuit Block Diagram
SEIKO EPSON
2-12
Revision:C
EMP-S1/S1H
2.5. LED INDICATOR The MA board has three LED indicators that indicate the operating status of the projector. Power indicator
Warning indicator
Figure 2-15
The following tables show what the indicators mean and how to remedy problems the they indicate. Power indicator On Indicator status
Projector status
Blink
Problem and remedy
Orange
Standby condition
(No abnormality) The power cable should only be disconnected when the projector is in this state. Press the [Power] button to start projection.
Orange
Cool-down in progress
(No abnormality) Wait for a short while. • The cool-down time is about 20 seconds. This time changes depending on the outside air temperature, etc. • During cool-down, the [Power] button of the remote control or projector is invalid if pressed. Press it after cool-down is over and the LED has turned to orange ON.
Green
Projection in progress
(No abnormality)
Green
Warm-up in progress
(No abnormality) Wait for a short while. The warm-up time is 40 seconds. After warm-up, the indicator will turn from green blink to ON.
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2-13
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EMP-S1/S1H
Warning indicator On Indicator status
Projector status
Blink
Problem and remedy
Red
Internal high temperature (overheating)
The lamp turns off automatically and projection stops. Wait for about 5 minutes without operating the projector. After about 5 minutes have passed, unplug the power cable and check the following: • Make sure the air filter and ventilation outlet are clear and that the projector is not positioned against a wall. • If the air filter is dirty, it should be cleaned. When the power cable is plugged back in, the projector will return to its previous state. Press the [Power] button on the projector or on the remote control to turn it back on.
Red
Lamp problem
• Disconnect the power cable from the electrical outlet. Remove the lamp and check that it is not broken. If the lamp is not broken, re-install it. Reconnect the power cable and press the [Power] button on the projector or the remote control to turn it back on. • If the lamp is broken, please contact your dealer or the nearest address provided in the "International Warranty Conditions" in the "Safety Instructions/World-Wide Warranty Terms" guide. (You will not be able to use the projector until the lamp is replaced). • Check that the lamp and lamp cover are securely installed. If the lamp or lamp cover are not securely installed, the lamp will not switch on.
Internal problem
Stop using the projector, disconnect the power cable from the electrical outlet and contact your dealer or the nearest address provided in the "International Warranty Conditions" in the "Safety Instructions/WorldWide Warranty Terms" guide.
High-speed cooling in progress
(This is not abnormal, but, if the temperature rises too high again, projection will stop automatically.) Set up the projector in a place which is well ventilated and ensure the air filter and ventilation outlet are clear. Clean the air filter.
(0.5 second interval)
Red
(1 second interval) Orange
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2-14
Revision:C
EMP-S1/S1H
2.6. POWER SUPPLY UNIT The power supply unit incorporates the AC inlet, filter circuit and fuse, and consists of the power supply, power supply filter and power supply fan.
Power supply
Power supply fan
Figure 2-16
(1). Circuit block Fuse AC input AC100-120V (AC200-240V)
Power supply filter
AC inlet Safety switch
Connected to Ballast unit
Power supply DC output Connecter to MA board CN1800 connector
Figure 2-17
Fuse EMI filter circuit
SEIKO EPSON
: Overcurrent prevention. It blows when overcurrent occurs due to a problem with power supply unit operation. : Eliminates interference from the AC power supply input.
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EMP-S1/S1H
(2). Overview of operation • The output cable of the power supply unit is connected to the CN1800 connector on the MA board. It allows the following voltages and signals to be transmitted. • DC output • Power supply Fan control signal (FANCTL).Control signal for built-in power supply cooling fan. • Power supply ON/OFF signal (PWON) ! Caution: • If the power cord is still connected to the projector after the power is turned off, background power is still supplied to the MA board via the CN1800 connector. • The EMI filter circuit/regulator circuit eliminates interference from the AC line and generates a DC voltage for the regulators. • Regulator circuit generate the DC voltages shown in the table below by means of switching regulator, so that no fluctuations in output potential occur as a result of load fluctuations.Furthermore, the individual output voltages cannot be adjusted. Table 2-2: EMP-S1 Nominal voltage
100V
200V
Rated Output current current (Output power)
Voltage rating
(Rated power)
MIN.
Ripple
MAX 1.5A
100mvpp
Ripple + Spike 200mvpp
Protection circuit Overcurrent Interrupt
Overvoltage +3.4V
Load capacitor
+3.3T
+3.3V
1.5A
0.2A
100µF
+5T
+5V
1.0A
0.02A
1.0A
100mvpp
200mvpp
Interrupt
+5.2V
200µF
+18T
+18V
0.25A
0.2A
0.25A
400mvpp
400mvpp
Interrupt
+23V
47µF
+8V
+8V
0.1A
0.02A
0.1A
100mvpp
200mvpp
Interrupt
+11V
200µF
+12V
+13V
0.5A
0.2A
0.5A
200mvpp
300mvpp
Interrupt
+16V
600µF
BALLAST
255V
(155W)
(0W)
(165W) 25Vpp
25Vpp
-
+400V
-
+3.3T
+3.3V
1.5A
0.2A
1.5A
200mvpp
Interrupt
+3.4V
100µF
+5T
+5V
1.0A
0.02A
1.0A
100mvpp
200mvpp
Interrupt
+5.2V
200µF
+18T
+18V
0.25A
0.2A
0.25A
400mvpp
400mvpp
Interrupt
+23V
47µF
+8V
+8V
0.1A
0.02A
0.1A
100mvpp
200mvpp
Interrupt
+11V
200µF
+12V
+13V
0.5A
0.2A
0.5A
200mvpp
300mvpp
Interrupt
+16V
600µF
BALLAST
295V
(155W)
(0W)
(165W) 25Vpp
25Vpp
-
+400V
-
100mvpp
Table 2-3: EMP-S1H Nominal voltage
Voltage rating
Rated Output current current (Output power) (Rated power) 2.0A
MIN. 0.2A
Ripple
MAX 2.0A
100mvpp
Ripple + Spike 200mvpp
Protection circuit Overcurrent Interrupt
Overvoltage +4.6V
Load capacitor
+3.3T
+3.3V
100µF
+5T
+5V
1.0A
0.02A
1.0A
100mvpp
200mvpp
Interrupt
+7V
200µF
+18T
+18V
0.25A
0.2A
0.25A
400mvpp
400mvpp
-
-
47µF
+8V
+8V
0.1A
0.02A
0.1A
100mvpp
200mvpp
Interrupt
-
200µF
+12V
+13V
0.5A
0.2A
0.5A
200mvpp
300mvpp
-
-
600µF
BALLAST
255V
(155W)
(1W)
(160W) 25Vpp
25Vpp
-
+410V
-
• A cooling fan is provided in order to extract the heat that is generated inside the power supply unit. The heat that is extracted by this cooling fan is dissipated outside the projector by the air exhaust fan that is connected to connector CN704 on the MA board.
SEIKO EPSON
2-16
Revision:C
EMP-S1/S1H
(3). Connector/Pin layout CN1800
17 34
1
18
Figure 2-18
Pin layout for power supply connector (Connected to CN1800 on MA board) Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
1
PWON
10
GND
19
+13V
28
+7V
2
+13V
11
+7V
20
GND
29
GND
3
GND
12
GND
21
+18V
30
-7V
4
+18V
13
-7V
22
FANCTL[1]
31
GND
5
GND
14
GND
23
+3.3V.T
32
+5V
6
+3.3V.T
15
+5V
24
GND
33
GND
7
GND
16
GND
25
+3.3R
34
+12V
8
+3.3R
17
+12V
26
+3.3R
9
+3.3R
18
FANCTL[0]
27
GND
SEIKO EPSON
2-17
Revision:C
EMP-S1/S1H
2.7. BALLAST UNIT The ballast unit re-regulates the ballast DC power supply (220-400V DC) which comes from the power supply unit in order to generate the AC power supply 132W for the UHE lamps.
SCI cable (Connects to CN1800 on MA board)
Ballast output connector (Connects to lamp inner unit)
Figure 2-19
Block diagram Connects to power supply unit HV DC input 220-400V
Down converter
Full bridge
Igniter circuit LV Ballast output 132W
Control circuit
SCI cable : Connects to MA board CN701 connector
Figure 2-20
(1). Operating principles • Control circuit
• Igniter circuit
SEIKO EPSON
: This generates the voltages (220V-400V DC) for the control circuit inside the ballast unit. Re-regulation switching operations are carried out based on the MA board output signal. The output voltage is adjusted to stabilize the output power supply. : Generates the 132W lamp voltage.
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EMP-S1/S1H
2.8. SPEAKER The projector has a single 1 W built-in speaker which is at the front of the projector and faces out to the upper. It can be used for monaural output of the sound which is input to the projector from a host computer or video source.
Speaker
Figure 2-21
Figure 2-22 shows the speaker control circuit block diagram. MA board
IC201 Audio In
CN3001
Audio Controller
SAA7115HL/V1_557 (Philips)
CN1701
Vol Control
S P Control signal
Figure 2-22 Speaker control circuit block diagram
The sound which is input from the computer or video source is amplified by the control circuits (audio controller) on the AV board, after which it is output from the built-in speaker that is connected to CN1701.
SEIKO EPSON
2-19
Revision:C
EMP-S1/S1H
2.9. TEMPERATURE CONTROL 2.9.1. Sensors and Switches This projector is equipped with the devices shown in the table below in order to protect the safety of the operator and maintain general safety with regard to the projector itself (by preventing abnormalities in operation). Table 2-4: Name
Installation position/Type
Function/Application
Lamp cover detection switch
Inside base of projector
Interrupts AC power when the lamp lid is opened. (Power cannot be turned on.)
Safety switch
Thermal switch on side face of optical engine (lamp guide unit)
Prevents overheating around the lamp inner unit. Interrupts AC power when the temperature rises above a certain level.
LAMP thermistor
Side face of optical engine (lamp guide unit)
Prevents overheating around the lamp inner unit. Turns off the lamp when the temperature rises above a certain level.
(1). Lamp lid detection switch This switch is installed on the inside base of projector, and moves in conjunction with the lamp lid latch. If it were possible to turn on the power while the lamp lid was still open, the lamp would turn on and generate high temperatures. This lid is normally opened when the operator is replacing the lamp inner unit, and so the switch is provided in order to prevent the danger of injury from burns which could occur if the lamp turned on accidentally.
Lamp lid
Figure 2-23
The lamp lid detection switch is connected to CN601 of the MA board. When the lamp lid opens, IC403 (IFCPU) detects the lamp lid open signal. When the lamp lid has opened, the lamp forced OFF signal is output from IC403 (IFCPU) to turn off the lamp.
SEIKO EPSON
2-20
Revision:C
EMP-S1/S1H
(2). Safety switch This is an overheat preventing temperature switch mounted on the upper face of the light guide unit. If overheating occurs around the lamp inner unit due to the contamination or like of the exhaust fan, the lamp is normally turned off by the LAMP thermistor to prevent overheating. The safety switch is provided in consideration of the case where overheating and LAMP thermistor or temperature detection circuit fault occur simultaneously. Safety switch
Figure 2-24 Safety switch
When the temperature rises above a given level, the safety switch interrupts AC power to stop all regulation operations. Once the safety switch is activated, power cannot be switched on again until the temperature falls below the given level. (3). LAMP thermistor The LAMP thermistor is screwed together with the exhaust fan to detect the temperature of the lamp section. To prevent damage to the peripheral area due to the overheating of the lamp inner unit, IC300 (PW164B) on the MA board gives a warning with the temperature indicator or stops the output of the ballast power supply (lamp power supply) when the temperature rises above a given level. LAMP thermistor
Figure 2-25 LAMP thermistor
SEIKO EPSON
2-21
Revision:C
EMP-S1/S1H
(4). Thermistor and temperature sensor operation IC300 (PW164B) on the MA board mainly detects the temperatures (resistances) of the optical block section and power supply section at intervals of 1 second by means of the LAMP thermistor. IC300 (PW164B) carries out fan control and power supply shutdown operations based on the measurement results. Table 2-5 Temperature Sensors Condition
(Warning) indicator
Meaning
Normal temperature
Off
Normal operation in progress
Warning temperature
Flashes orange
If temperature rises any higher, projection stops.
Abnormal temperature
Lights red
Overheating (no projection)
Flashes red
Problem with fans, thermistors or temperature detection circuit
* Refer to 2.10 for a detailed description of fan operation. * Refer to 2.5 for a detailed description of the temperature indicator.
SEIKO EPSON
2-22
Revision:C
EMP-S1/S1H
2.10. FAN OPERATION There are three fans inside the projector. These fans discharge heated air from the projector in order to prevent problems with circuit operation and component damage resulting from overheating. (It is mainly the lamp inner unit, power supply unit and ballast unit which generate heat.) Exhaust fan
Figure 2-26 Exhaust fan Intake fan A
Figure 2-27 Intake fan
Power supply Fan
Figure 2-28 Power supply fan
SEIKO EPSON
2-23
Revision:C
EMP-S1/S1H
(1). Fan control circuit block LV FAN
PW
DAC
PW164B
ADT7518
LV-FAN0 LV-FANDET0
PORTA1 PORTA0
SCL SDA
SCL
Vout-A
EX FAN
SDA
Vout-B
EX-FV0 EX-FANDET0
PSCI BGH14
BGH15
FANDET0 FANDET1
Figure 2-29
(2). Operation control • The MA board is connected to the LAMP thermistor. The driver CPU controls the operation of the two fans (FAN 100 and FAN 80) based on the temperatures detected by the thermistors. • The signals that are output by IC901 (driver CPU) on the MA board are used to change the output from the fan drive circuit (regulator) on the MA board in order to control the FAN 100 and FAN 80. • The feedback signals from the fans are used by the CPU to monitor the operation of the fans (stopped or running) for any abnormalities. If the feedback signal indicates a condition which the CPU does not expect, the CPU judges that there is an abnormality in the operation of the fan and immediately turns off the lamp and causes the warning indicator to light red. • The fan at the power supply unit operates at high speed or low speed based on the signal which is generated by IC902 (IFCPU) on the MA board. (3). Fan operation (When lamp is on) FAN 100 (LV FAN) : Adjusts speed according to set temperatures from the thermistor. FAN 80 (EX FAN) : Adjusts speed according to set temperatures from the thermistor. (When cool-down is in progress) • The fans operate for approximately 20 second cool-down time after the lamp is turned off.
SEIKO EPSON
2-24
Revision:C
Chapter 3 Troubleshooting
EMP-S1/S1H
3.1. BEFORE CARRYING OUT TROUBLESHOOTING 1. If repairs involving the replacement of blocks or components have been carried out, always be sure to re-check whether the replacement parts themselves are operating correctly or not (in order to determine whether the problem is the result of something such as a loose connector). 2. All instructions and procedures listed in troubleshooting flowcharts should be carried out as given. 3. Follow the procedures given in Chapter 4 - Disassembly and Assembly when replacing any of the projector components. 4. When checking the operation of the projector, always check whether the connectors are connected securely before proceeding to other checks. 5. In order to confirm proper operation, use normal AC power and the correct cable type.
3.1.1. Troubleshooting Tools and Equipment The following tools and equipment will be required in order to carry out troubleshooting, and so you should check that they are on hand. Table 3-1 Name
Qty.
Application/Other
Projection screen
1
Projecting images
Tape measure (3 m)
1
Measuring projection distances
Host computer
1
Transmitting audio and image data
Video equipment
1
Transmitting audio and image data
Multi meter
1
Measuring resistance values and voltages (AC/DC)
External speaker
1
Testing audio output (with audio cable connector)
Double-sided tape
Short length
Attaching parts
General tools
1 set
Tools and equipment listed in Chapter 4 Section 4.1.
3.1.2. Field Replacement Parts • If replacing projector parts in the course of troubleshooting, replace the whole service unit which contains the part that needs to be replaced. • The optical engine (comprising the light guide unit, prism unit and light valves form a single service part and MA Board. Accordingly, the individual components should not be disassembled or be replaced with other components (because the components have all been adjusted with respect to each other). • Carry out the safety tests after parts replacement is completed.
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EMP-S1/S1H
3.2. ENTRY Check the nature of the problem using the following flow diagram, and then proceed to the corresponding flow chart (on the following pages).
START
Exterior check
Internal cable connections
Power ON/OFF
Screen display/ Image quality
Audio output
Control panel
Remote control operation
Other
SEIKO EPSON
• Exterior checking Check for any external abnormalities (such as damaged cover)
• Internal cable check Remove the upper case unit and check the cable connectors on the MA board. (Reconnect if required.)
• Power ON/OFF/Initialization Connect the power cord and turn on the power. Check the initial operations until the "NO SIGNAL" message appears, and then check the power off operation. 1. After power is turned on, the Power indicator flashes green and projection starts. 2. After about 40 seconds, the operation indicator lights green, and projection starts at maximum brightness.
• Display input/output and image quality (use the [Source] (Enter) button to change input) Check the quality of input and output signals from Computer/Component Video, S-Video and Video sources. Carry out the following four steps first. 1. Check the projection position adjustment and projection distance with the foot unit. 2. Adjust the image using the focus ring. 3. Press the [Auto] button to optimize the display. 4. Also check the color adjustment made by the screen-free function.
• Audio input/output Check that there are audio inputs from Computer/Component Video, S-Video and Video. Also check the operation of the [AV Mute] button.
• Control panel button operations Check the functioning of each button on the control panel.
• Remote control operation Check the functioning of each button on the remote control.
• Other Abnormal noise, image problem, odor, smoke
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3.2.1. Exterior Checking START
Upper Case Unit
Control Panel
Projection Lens Unit
IF Panel
Lower Case
Air Filter
Lamp Lid Unit
Lamp Inner Unit
• • • •
There should be no damage, deformation or cracking due to external forces. The lower case should be installed correctly. The remote signal receiver should be clean and should not have any foreign materials attached. Air vents should be clean.
• Upper case should be installed correctly. • No buttons should be stuck down.
• Focus ring and zoom ring should turn smoothly. • Lens should be clean and free from damage.
• The remote signal receiver should be clean and should not have any foreign materials (such as tape) attached. • There should be no damage, deformation or cracking due to external forces. • The speaker should be clean and should not have any foreign materials (such as tape) attached. • There should be no damage, deformation or cracking due to external forces. • Air vents should be clean.
• Air filter should be installed to the lower case correctly. • Filter should be clean (remove the air filter from the lower case to check).
• Lamp lid should be securely attached to lower case. • Lamp lid detection switch latch should be free from damage. (remove the lamp lid to check).
• Plastic frame should be free from any deformation or heat damage (discoloration) (remove the lamp inner unit to check). • Power supply connector should be free from discoloration. • Glass surface of lamp should be clean. • Can the projection height be adjusted with the foot unit?
Adjustable Foot Unit
Interface Connectors
AC Inlet
• Connectors and terminals should not be bent or discolored. • Connectors and terminals should be free from foreign particles.
• Connectors should not be discolored. • Socket should be free from damage.
Air Filter/Lamp Inner Unit Installation
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3.2.2. Internal Cable Check Turn off the power, disconnect the power cable and then start checking.
START
Upper Case Unit Removal
Control Panel
Intake Fan Assembly
LAMP Thermistor
Exhaust Fan
RC Board
Lamp Lid Detection Switch
Power Supply Unit
Ballast
Speaker
Light Valve R/G/B
• MA board CN400 (Lock-type connector)
• MA board CN702
• MA board CN701
• MA board CN704
• MA board CN603 ↔ RC board (Front) CN1 • MA board CN600 ↔ RC board (Rear) IC3000 • MA board CN601
• MA board CN1800
• MA board CN602 • Ballast unit ↔ Optical engine • MA board CN1701
• MA board CN1400 / 1500 / 1600 (Lock-type connector)
A
(To next page)
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(Continued from previous page) A
MA board Removal
IF Board
• MA board CN600
MA board Installation
Upper Case Unit Installation
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3.2.3. Power Supply ON/OFF START
Power cord connection
Is the indicator lit orange?
No
Replace the power supply unit.
No
Press the [Power] button of the remote controller.
Yes
Press the [Power] button of the operation panel. Does the indicator flash green? Yes
Does the indicator flash green?
No
Replace the MA board.
Yes
To START
Reconnect or replace the operation panel.
To START
No
Is the green?
indicator lit
Yes
Indicator status
Projector status
High-speed Flashing orange cooling in progress Flashing orange Lamp problem
• Check the lamp lid. • If the lamp is broken, replace it. • If the lamp is not broken , so reinstall the lamp and check if it turns on. • Replace the MA board. • Replace the optical engine.
Fan problem/ Sensor problem (Internal problem)
• • • •
High temperature problem
• Let the projector cool down. • Replace the MA board.
Lit orange Flashing red (0.5 second intervals) Lit orange Flashing red (1 second intervals) Lit orange
Remedy • Install the projector in a place that has good ventilation so that the air inlet and air output are clear. • Clean the air inlet, air output and air filter.
Replace any fans that are not working. Replace the thermistor. Replace the MA board. Replace the optical engine.
Lit red B
All extinguished.
Lit normally.
• LED board fault.
(To next page)
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(Continued from previous page) B
No
Replace the MA board.
Is the lamp turned on? Yes
No
Is the lamp turned on? Yes
Press the [Power] button to turn off the power.
Does the indicator flash orange?
Replace the optical engine.
No
Replace the MA board
Yes
Does the indicator flash orange?
No
Replace the optical engine.
Yes
Is the indicator lit orange within about 20 seconds after it has flashed orange?
No
Replace the MA board.
Yes
Is the indicator lit orange within about 20 seconds after it has flashed orange? To "Image display and image quality".
No
Replace the optical engine.
Yes
Remedy for power supply problems (1). Determine whether the problem is being caused by components inside the power supply unit, or whether it is being caused by some external factor. (2). The basis for judging this is by checking factors such as output voltage, internal temperature, appearance of components, odors and smoke. (3). If the cause is judged to be an internal problem, replace the power supply unit. (4). If the newly-replaced power supply unit also has a problem and the symptoms are the same as before, then the cause of the problem is probably some external factor. (5). If the problem is caused by an external factor, eliminate the external factor that is causing the problem. (6). If the power supply unit is recoverable but is not working properly (such as if high temperatures are causing the thermostat to isolate the power supply, or the overcurrent protection circuit has operated), then there is no need to replace the power supply unit. (7). If the power supply unit is not recoverable and is not working properly (such as if overcurrent has blown a fuse), replace the power supply unit. (8). If there is a problem with the power supply fan, the power supply will be shut down after several minutes operation (the indicators will switch off). In such cases, replace the power supply unit.
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3.2.4. Image display and image quality ! Caution: • The image quality can also be affected by condensation and by a dirty lens. If condensation forms, the problem will correct itself naturally if the projector is left to stand for a while. START
Does “NO SIGNAL” appear in the bottom-left of the screen?
Press the [Power] button to turn on the power.
Yes
1. Adjust the height using the front adjustable foot. 2. Press the [keystone] buttons to correct distortion. 3. Adjust the focus.
No
Does an image appear on the screen?
Does the image appear clearer?
Yes
No
Replace the MA board.
No
Is the lamp turned on?
Clean the projection lens. Yes
Does “NO SIGNAL” appear in the bottom-left of the screen?
No
Replace the lamp inner unit.
Is the lamp turned on?
Yes
Does the image appear clearer?
Yes
No
No
Yes
Yes
Replace the optical engine.
Clean the areas around the light valves.
No
Does the image appear clearer?
Replace the MA board.
Yes
No
Is the lamp turned on?
Replace the MA board.
Yes
Yes
No
Does the image appear clearer?
Replace the optical engine.
No
Replace the optical engine.
C (To next page)
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(Continued from previous page) E C
D Connect a source to the following interfaces. 1. Video 2. S-Video Does an image appear? Is the image quality good?
Connect the host computer to the Computer/Component Video connectors and display an image.
Does an image appear on the screen?
Yes
Yes No
No
Connect a source to the interface to be checked.
Press the [Auto] button.
Yes
Is the image quality good?
Yes
D
No
No
1. Press the [Menu] button. 2. Select the "Video" menu. 3. Adjust the brightness and contrast.
Press the [Source] button to change the display to “Computer”.
Does an image appear on the screen?
Yes
Is the image quality good?
Yes
Yes
Does a picture appear on the monitor? No
No
No
Replace the MA board. Replace the MA board.
Replace the computer cable.
Does an image appear on the screen?
Connect a monitor to the Monitor Out interface.
Yes
Is the image quality good? No
Yes
Yes
Does picture appear on the monitor? No
Replace the optical engine.
No
Replace the optical engine. Replace the IF board. Yes
Does picture appear on the monitor? Does an image appear on the screen?
Yes
No
Replace the monitor cable.
E
No
Replace the MA board. Does picture appear on the monitor? Does an image appear on the screen?
Yes
Yes
No
Replace the monitor.
No
Replace the optical engine. Does picture appear on the monitor?
Yes
No
Replace the IF board.
To "Audio Output".
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3.2.5. Audio output START
F
Can the volume and tone be adjusted?
Yes
No
Connect the audio input connector and host computer. Press the [Source] button to select the corresponding input source, and output sound from the internal speaker.
Replace the IF board.
Connect the audio input connector (Video, S-Video) and AV equipment. Press the [Source] button to select the corresponding input source, and output sound from the internal speaker.
Yes
No
Can the volume and tone be adjusted?
Yes
F
No
Is sound output from the built-in speaker?
Yes
Replace the MA board.
No
Reconnect CN1701 on the MA board.
Is sound output from the built-in speaker?
Can the audio output be started and stopped using the [AV Mute] button? Yes
Yes
No
Connect the external speaker to the audio output connector.
Is sound output from the external speaker?
Yes
No
Replace the IF board.
No
Replace the speaker unit. Replace the IF board. Is sound output from the built-in speaker?
Yes
No
Can the audio output be started and stopped using the [AV Mute] button? No
Replace the IF board.
Yes
To "Control Panel".
Replace the MA board. Is sound output from the built-in speaker?
Yes
No
Replace the MA board.
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3.2.6. Control panel START
Can the power be turned off by pressing the [Power] button?
No
Yes
Can the menu be displayed by pressing the [Menu] button?
No
Yes
Does pressing the Source button switch the input source from the Computer/Component Video terminal to S-Video terminal to Video terminal?
No
Yes
Does pressing the [ESC] button end the function being executed or return to one layer up?
No
Yes
Does pressing the [Enter] button adjust determine the menu item?
No
Yes
Does pressing the [Keystone] buttons correct image distortion?
No
Yes
Reconnect the connector CN400 of the MA board.
Yes
Do all switches function normally? No
Replace the control panel.
Yes
Do all switches function normally? No
Replace the MA board.
To "Remote control operation".
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3.2.7. Remote control operation START
Can the power be turned on and off using the remote control?
Yes
Can the power be turned on and off using the remote control?
Yes
No
No
Does the remote control work from about 6m away from the front or rear of the projector?
Yes
No
Replace the remote control battery.
Can the power be turned on and off using the remote control?
Replace the IF board. (Rear)
Yes
Can the power be turned on and off using the remote control?
Replace the remote control battery.
Yes
Does the remote control work from about 6m away from the front or rear of the projector?
No
No
Replace the remote control.
Replace the MA board.
Yes
No
Replace the remote control. Can the power be turned on and off using the remote control?
Yes
Yes
Does the remote control work from about 6m away from the front or rear of the projector?
No
No
Replace the remote control.
Reconnect the RC receptor cable (front, rear).
Can the power be turned on and off using the remote control?
Do all buttons operate normally?
Yes
No
Do all buttons operate normally? Yes
Replace the RC board. (Front, Rear)
No
Replace the MA board.
No
Yes
Replace the RC receptor cable.
Does the remote control work from about 6m away from the front or rear of the projector?
Yes
No
Can the power be turned on and off using the remote control?
Replace the MA board. Yes
No
Replace the RC board. (Front, Rear) To "Other".
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3.2.8. Other START
Is the projector making any abnormal noise?
Yes
• Check for any foreign particles around the exhaust fan, intake fan and power supply fan. • The cause might be a malfunction of the power supply unit (pulse transformer vibration, etc.).
Yes
• • • •
No
Is the projector overheating? No
Are there any image problems?
Yes
No
Is there any abnormal odor or smoke?
SEIKO EPSON
Yes
Malfunction of LAMP thermistor or safety switch. Malfunctioning or dirty Exhaust Fan, intake fan and power supply fan. Dirty air filter. Malfunction of optical engine.
• Malfunctioning or dirty light guide unit (lenses, mirrors, etc.) (malfunction of optical engine). • Dirty projection lens (malfunction of optical engine). • Malfunctioning or dirty light valve in head unit (malfunction of optical engine).
• Charring of cables due to heat. • Dust burning due to heat.
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Chapter 4 Disassembly & Assembly
EMP-S1/S1H
4.1. DISASSEMBLY AND ASSEMBLY This chapter describes the procedures for disassembling and assembling the main components of the EMP-S1/S1H projector. Except where indicated separately, all procedures for re-assembling the disassembled assemblies and components should be carried out by following the disassembly procedures in reverse. (1). Preparation 1). Take off any metallic objects such as wristwatches, shirt cuff buttons, rings and tie pins which may pose the danger of coming into contact with the projector. 2). Always wear gloves when disassembling and reassembling the projector. 3). When disassembling and assembling the projector, always use a grounding strap and a grounding mat. 4). Turn off the power for both the projector and the host computer before connecting them. 5). Disconnect the power cord from both the projector and the electrical outlet. 6). Disconnect all interface cables that are still connected. 7). Use a vacuum cleaner to clean the air filter, interface panel and outer case. (2). Tools and Equipment The tools and equipment in the following table will be needed, and should be made ready beforehand. Qty.
Commercially available
Phillips screwdriver No. 0
1
Yes
Disassembling the Focus ring
Phillips screwdriver No. 2 (20 cm)
1
Yes
Disassembling the outer case and inner components
Hexagonal box screwdriver (5 mm)
1
Yes
Removing the computer interface
Tweezers
1
Yes
Removing FPC cables
Brush
1
Yes
Cleaning away dust
Vacuum cleaner
1
Yes
Cleaning away dust
Small amount
Yes
Cleaning the projection lens
Air blower
1
Yes
Cleaning the light valves and fans
Gloves
1
Yes
Grounding strap
1
Yes
Small amount
Yes
Name
Lens cleaner
Heat-resistant Tape
Application/Other
Fixation of a cable
(3). Precautions for servicing Section 4.2 explains the details of disassembling the mechanism. The optical engine is a single service part. For servicing, therefore, use a combination (optical engine) of the light guide unit, prism unit and light valves. The component parts of the optical engine require mechanical installation positions to be adjusted and the electrical correction values (image adjustment data) in the control circuits to be written. ! Caution: • Do not disassemble the optical engine. • Do not replace the component parts of the optical engine with other parts.
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1). Light guide unit The installation positions of the light valves (R/G/B) are adjusted before shipment from the factory. If these adjusted positions change, pixel displacements will occur, disabling the projection of a normal image. The positions of the condenser lenses and mirrors inside the light guide unit are adjusted at the time of shipment from the factory to provide the optimum quality of image display. If the positions are changed, or if the location where any given part is used is changed, screen image distortion will occur and cause a lack of image clarity. ! Caution: • If the positions of adjustment screws are changed or if the upper guide cover is removed from the light guide unit, there is the danger that the positions of the lenses and mirrors might get changed. Furthermore, dust may get inside the light guide unit. Because of these factors, the light guide unit should never be disassembled. • The EMP-S1/S1H is adjusted to extremely high levels of precision, and field adjustments of the light guide unit are not possible. • Do not loosen the prism unit and polarization plate mounting screws. 2). Control circuit adjustments As described above the optical system mechanism contains several location where mechanical adjustments are required. The control circuit also possesses its own unique characteristics (such as display signal output drivers) which differ from projector to projector, and there are also unique differences in each optical system mechanism (such as in the light valves). In order to obtain the optimum display, it is necessary to eliminate these differences in electrical and mechanical characteristics as well as to make mechanical adjustments. Because of this, the various correction values are set at the time of shipment from the factory and are stored in a flash ROM on the MA board assembly. ! Caution: • Special tools and specialist technology are required in order to write the correction values into the flash ROM, and such adjustments cannot be carried out in the field.
(4). Points to note when working Detailed points to note are given in each section, so be sure to read them thoroughly before commencing work. Below are several general points which should be noted. • When the projector is disassembled, the dust in and around parts such as the fans and air filter may get transferred to other parts such as the R, G and B light valves which are the central part of the display mechanism, and this may have an adverse effect on the quality of projected images. Accordingly, check whether any of the parts are dusty or dirty, and use a vacuum cleaner to clean them first before carrying out disassembly work. • The optical engine and the circuit boards are very sensitive to static electricity. Place them inside static-proof bags once they have been removed from the projector. • When carrying out any of the following operations, check that there is no dust or dirt on the respective components or on any lens and glass surfaces before installation. If any such contamination is found, clean it off using is opropyl alcohol. 1. Optical engine removal 2. Lamp inner unit removal 3. Air filter removal • The speaker unit contains a permanent magnet, so keep it away from any storage media such as floppy disks and magnetic cards. • The optical engine is very sensitive to vibration and shocks, so handle it with care. • Do not disassemble any components (such as the power supply unit) which do not have express disassembly procedures described in this Service Manual.
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EMP-S1/S1H
4.2. PROJECTOR DISASSEMBLY AND ASSEMBLY The disassembly procedures for the EMP-S1/S1H projectors is explained below in the form of a flowchart. Except where indicated separately, all procedures for re-assembling the disassembled assemblies and components should be carried out by following the disassembly procedures in reverse, and so assembly procedures have been omitted. Detailed disassembly procedures for each component are given in Sections 4.2.1 to 4.2.28. Do not disassemble the optical engine.
Projector
Lid, Lamp
Air Filter
(4.2.2.)
(4.2.3.)
R.Control (4.2.5.)
Lens Cap Unit
(4.2.1.)
Lamp Assy.
Foot Unit
(4.2.2.)
(4.2.4.) Case, Upper
Speaker
(4.2.6.)
(4.2.7.) SW Board Assembly
Shield Platet, MA
Shield Plate, Lamp
(4.2.10.)
(4.2.9.)
Panel, IF
Exhaust Fan Assembly
(4.2.11.)
(4.2.14.)
(4.2.8.)
LAMP Thermistor (4.2.15.) Duct, Exhaust Inner (4.2.15.)
Label, IF
(4.2.11.)
Fan80 (4.2.15.) Duct, Exhaust outer (4.2.15.)
MA Board
Power Supply Assy
(4.2.12.)
(4.2.18.) Power Supply Fan
Plate, MA Fasten
(4.2.20.)
(4.2.12.)
Frame MA Left (4.2.17.)
IF Board Assembly
(4.2.13.)
Shield Plate, LOW
Focus Ring (4.2.22.)
(4.2.17.)
Optical Engine
(4.2.21.) Ballast Assy
(4.2.19.)
Projection Lens Unit
(4.2.23.) RC Board Assembly Switch, Lamp Lid Detect
(4.2.26.)
(4.2.16.)
Fan100 (4.2.24.) Duct, Intake
(4.2.25.) Frame MA Right (4.2.25.)
Foot Rubber (4.2.28.)
Handle
Low case
(4.2.27.)
Figure4-1
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4.2.1. Lens Cap Unit 1. Remove the "Lens Cap Unit".
Lens Cap Unit
Figure 4-2
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EMP-S1/S1H
4.2.2. Lamp Inner Unit WARNING:
The lamp is hot immediately after use, and burns may result if it is touched. Remove the lamp after it get cool and is safe.
1. While pushing the catches of the "Lid, Lamp", lift the "Lid, Lamp" in the direction of the arrow, loosen the two screws that are securing the "Lamp Assy.", and remove the "Lamp Assy.". Cover, Lamp
Lamp Inner Unit
Figure 4-3
! Caution: • The “Lamp Inner Unit” is warm immediately after the power is turned off, so be careful not to get burnt. • Do not touch the glass surface of the lamp and do not make the lamp dirty. • When installing the lamp inner unit, check that the lamp inner unit is fitting securely onto the guide pins.
Should be fitting securely on guide pins
Figure 4-4
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4.2.3. Air Filter 1. While pushing the catch of the "Lid, Air Filter", lift the "Lid, Air Filter" in the direction of the arrow, and remove the "Lid, Air Filter" and "Air Filter". Lid, Air Filter
Air Filter
Figure 4-5
4.2.4. Foot Unit 1. Extend the legs of the foot unit as far as they will go. 2. Press a screwdriver or similar tool into the small channel at the side of the “Foot Unit”, then slide the foot unit out and away from the projector body.. Foot Unit
Figure 4-6
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4.2.5. R. Control Holder 1. Open the "Holder, R. Control", and take out the R. Control from inside.
Holder, R. Control
R. Control
Figure 4-7
2. While pushing the side face of the "Holder, R. Control", remove the "Holder, R. Control" from the projector.
Holder, R. Control
Figure 4-8
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4.2.6. Case, Upper 1. Remove the 6 screws (C.B.P-Tite Screw, 4x10,F/ZN), the 1 screw (C.B. Screw, 3x6,F/ZB) that are securing the “Case Upper”.
C.B. SCREW, 3x8,F/ZB
Figure 4-9
2. Lift the "Case, Upper". (Be careful since two cables are connected to the "Case, Upper".)
Case, Upper
Speaker Cable
Control panel cable
Figure 4-10
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EMP-S1/S1H
3. Disconnect speaker cable connector 1701. 4. Unlock connector CN400 on the MA board and then disconnect the control panel cable. CN1701
Lock
Unlock
CN400
Figure 4-11
4.2.7. Speaker 1. From the "Case, Upper", remove the two screws (C.C.P-TITE SCREW, 3x6, F/ZN) that are securing the "Speaker", and remove the "Speaker" and "Springs, Speaker".
Spring, Speaker Speaker
Case, Upper
Figure 4-12
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EMP-S1/S1H
! Caution: • When installing the “Speaker” , make sure that the lead wire runs in the direction shown in Figure 413. In addition, install so that “Conductive Spring SP” is touching the shield plate of the upper case.
Figure 4-13
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EMP-S1/S1H
4.2.8. SW Board Assembly 1. Unlock the connector and disconnect the "Cable, SW". 2. Remove the four screws (C.C.P-TITE SCREW, 3x6, F/ZN) that are securing the "SW Board Assembly". 3. Remove the "Button, SW", "LED Lens" and "Panel, SW".
Spring, SW Board
Spring, SW Board SW Board
Connector Buttan, SW Cable, SW
LED Lens
Panel, SW
Figure 4-14
! Caution: • When reinstalling the "SW Board", fit the screws in the hole positions shown in the figure.
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• Bend the "Cable, SW" as shown in the figure.
Figure 4-15
4.2.9. Shield Plate, Lamp 1. Remove the two screws (C.(O).SCREW, 3x5, F/ZN) that are securing the "Shield Plate, Lamp", remove the "Shield Plate, Lamp".
Shield Plate, Lamp
Figure 4-16
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4.2.10. Shield Plate, MA 1. Remove the seven screws (C.(O).SCREW, 3x5, F/ZN) that are securing the "Shield Plate, MA", and remove the "Shield Plate, MA".
Shield Plate, MA
Figure 4-17
4.2.11. Panel, IF / Label, IF 1. Release the locks for the R, G and B light valve cable connectors. light valve G Lock
Unlock
light valve B
light valve R
Figure 4-18
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! Caution: • When connecting the cables to the R/G/B light bulbs, insert the cables securely as far as they will go as shown in Figure 4-18.
Figure 4-19
2. Disconnect all of the R, G and B light valve cable and “Main Board” cable connectors (6 in total). CN1600
CN603
CN1400
CN704 CN1500 CN601 CN702 CN701 CN1800 CN400
CN602
Figure 4-20
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! Caution: • hen wiring the RC Cable, secure it to the "Frame, MA Left" with a heat-resistant tape as shown in the figure.
RC Cable
Heat-resistant tape
Figure 4-21
• When wiring the Exhaust Fan Cable and Lamp Thermistor Cable, run the Lamp Thermistor Cable under the projection of the Exhaust Fan and twist it with the Exhaust Fan Cable twice as shown in the figure. LAMP Thermistor Cable
Duct Exhaust Cable
Figure 4-22
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3. Remove the 2 screws (C.B. Screw, 3x6,F/ZB) that are securing the “Panel, IF” and the screw (C.B,P-TITE SCREW, 3x10, F/ZN) that are securing the “Fixing Plate, MA” and then remove the “Main Board”.
Panel, IF
MA Board
Figure 4-23
4. Remove the screw (C.B. Screw, 3x6,F/ZB) that is securing the “Panel, IF” and then remove the “Panel, IF” and the “Label, IF”. MA Board
Panel, IF
Label, IF
Figure 4-24
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4.2.12. Main Board Fixing Plate, MA 1. Unlock CN600 on the Main Board and CN3002 on the “IF Board Assembly”, and then take out the “Connector”. Blue
Solid white
IF Board Assembly
CN600
CN3002 MA Board
Figure 4-25
! Caution: • Install so that the solid white surface is facing toward the printed circuit board assembly. • When reinstalling the Connector, secure the Board and Connector with a heat-resistant tape as shown in the figure. Heat-resistant Tape
MA Board
Figure 4-26
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2. Remove 4 attachment screws (Screw, HSH 4-40) and 2 attachment screws (C.B. Screw, 3x10,F/ ZB) from the “Fixing Plate, MA”. Then separate the plate from the “Main Board”. Edge Guard
MA Board
Fixing Plate, MA
Figure 4-27
4.2.13. IF Board Assembly 1. Remove the screw (C.B.P-TITE SCREW,3x10,F/ZB) and the 2 screws (Screw, HSH 4-40) and the screw (C.(O).SCREW, 3x5, F/ZN) that are securing the “IF Board Assembly”, and then remove the “IF Board Assembly”. IF Board Assembly Fixing Plate, MA
Figure 4-28
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4.2.14. Exhaust Fan Assembly 1. Remove 1 attachment screws (C.B.P-TITE SCREW,3x10,F/ZB) from the “Exhaust Fan Assembly”. Then remove the “Exhaust Fan Assembly”.
Exhaust Fan Assembly
Figure 4-29
4.2.15. Lamp Thermistor/Duct, Exhaust Inner/Fan 80/Duct, Exhaust Outer 1. Remove the 2 screws (C.B.P-Tite Screw, 4x35,F/ZN) that are securing “Fan 80”, and then remove the “Lamp Thermistor”, “Duct Exhaust Inner”, “Fan 80” and “Duct Exhaust Outer. Duct Exhaust Outer
Fan 80
Duct Exhaust Inner
Lamp Thermistor
Figure 4-30
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4.2.16. RC Board Assembly 1. Remove the one screw (C.(O) SCREW, 3x5, F/ZN) that is securing the "RC Board Assembly", and remove the "RC Board Assembly". 2. Disconnect the RC Board Connection Cable from the "RC Board Assembly".
Lamp Cover Detection Switch
RC Board Assembly
Figure 4-31
4.2.17. Frame, MA Left/Shield Plate, LOW 1. Remove the two screws (C.B.P-TITE SCREW, 3x10, F/ZN) that are securing the "Frame, MA Left". 2. Remove the "Shield Plate, LOW".
Shield Plate, LOW
Frame, MA Left
Figure 4-32
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4.2.18. Power Supply / Ballast Assembly 1. Remove the three screws (C.C.P-TITE SCREW, 3x8) that are securing the "Ballast Output Cable" and "Thermostat".
Ferrite core
Ballast Output Connector Themostat
AC inret
Figure 4-33
! Caution: • When reconnecting the Ballast Output Connector, pay attention to the connector orientation. • When installing the AC Inlet, pull the cable out of the Power Supply.
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2. Remove the four screws (C.B.P-TITE SCREW, 3x10,F/ZB) that are securing the "Power Supply/Ballast Assembly", and remove the "Power Supply/Ballast Assembly".
Power Supply / Ballast Assembly
Figure 4-34
4.2.19. Power Supply / Ballast 1. Disconnect the cable that is connecting the "Power Supply Assembly; 100V (200V)" and "Ballast Assembly", and separate the "Power Supply Assembly; 100V (200V)" and "Ballast Assembly".
Power Supply Assembly; 100V (200V)
Cable Ballast Assembly
Figure 4-35
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! Caution: • When reconnecting the "Power Supply Assembly; 100V (200V)" and "Ballast Assembly" with the cable, wire it so that the ferrite core of the Power Supply Assembly is located under the Power Supply Fan.
Ferrite core
Power Supply Fan
Figure 4-36
• When reinstalling the "Ballast Assembly", wire the SCI cable as shown in the figure. Ballast Assembly
SCI Cable
Figure 4-37
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4.2.20. Power Supply Fan 1. Remove the four screws (C.B. SCREW, 3x8, F/ZB) that are securing the "Power Supply Assembly; 100V" case, and disconnect the connector that is connecting the "Power Supply Fan" and "Power Supply Assembly; 100V (200V)".
Power Supply Fan
Connector
Figure 4-38
2. Remove the two screws (C.P.B-TITE SCREW, 5x10, F/ZN) that are securing the "Power Supply Fan", and remove the "Power Supply Fan". Power Supply Fan
Figure 4-39
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! Caution: • When wiring the cable of the "Power Supply Fan", secure it in two places with heat-resistant tapes as shown in the figure.
Heat-resistant Tape
Figure 4-40
4.2.21. Optical Engine 1. Remove 4 attachment screws (C.B.P-Tite Screw, 3x10,F/ZB) from the “Optical Engine”. ! Caution: • Make sure that you remove the correct screws so as not to disassemble the “Optical Engine”. Screw Screw Screw
Optical Engine
Screw
Figure 4-41
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2. Lift up the “Optical Engine” to remove it. ! Caution: • When reinstalling the "Optical Engine", pay attention to the cable routing. Fan 100 Cable Frame, MA Right
Optical Engine
Projection Lens Unit
Switch, Lamp Lid Detect
Figure 4-42
4.2.22. Focus Ring 1. Remove 3 attachment screws (Screw 6008240) from the “Focus Ring”. Then remove the ring from the “Projection Lens”.
Optical Engine
Projection Lens Unit Focus Ring
Figure 4-43
! Caution: • When installing the “Focus Ring”, make sure that the projection on the focus ring is facing upward.
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4.2.23. Projection Lens Unit 1. Remove 4 attachment screws (C.P. [S-P1] Screw, 3x10,F/ZN) from the “Projection Lens”. Then remove the lens from the “Optical Engine”.
Optical Engine
Projection Lens Unit
Figure 4-44
4.2.24. Fan 100 1. Remove the 2 screws (C.B.P-Tite Screw, 5x10,F/NI) that are securing “Fan 100” to the underside of the “Case Lower”, and then remove “Fan 100”. Fan 100
Cushion, Intake, B
Case, Lower
Figure 4-45
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! Caution: • When installing fan 100, secure the cable with heat-resistant tape.
Fan 100
Secure with heat-resistant tape
Figure 4-46
4.2.25. Duct, Intake / Frame, MA Left 1. Remove the 2 screws (C.B.P-Tite Screw, 3x10,F/ZB) that is securing the “Frame, MA Right” and then remove the “Frame, MA Right”. 2. Remove the 3 screws (C.B.P-Tite Screw, 3x10,F/ZB) that are securing the “Duct, Exhaust” and then remove the “Duct, Exhaust”.
Duct, Intake
Frame, MA Left
Cushion, Intake, A
Figure 4-47
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4.2.26. Lamp Cover Detection Switch 1. Remove the screw (C.C.B-TITE Screw, 2x12,F/ZN) that is securing the “Lamp Cover Detection Switch”, and then remove the “Lamp Cover Detection Switch” from the “Case Lower”.
Lamp Cover Detection Switch
Figure 4-48
! Caution: • When installing the “Lamp Cover Detection Switch”, make sure that the direction of installation is correct as shown in Figure 4-49.
Lamp Cover Detection Switch
Figure 4-49
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4.2.27. Handle 1. Remove the 3 screws (C.B.P-TITE Screw, 3x10,F/ZB) that are securing the “Folder Handle” and then remove the “Folder Handle”, “Handle” from the “Case Lower”.
Foldet Hndle
Hndle
Figure 4-50
4.2.28. Foot Rubber 1. Remove the “Foot Rubber” from the “Case Lower”. Foot Rubber
Case Lower
Figure 4-51
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Chapter 5 Appendix
EMP-S1/S1H
The content of this chapter is not open to end users. 5.1. AS (After Service) menu This menu is to provide information that are not displayed in ordinary menu.
5.1.1. How to display AS (After service) menu. When [Esc] button is pushed for 7 seconds,AS menu is display. The contents of AS menu depends on video sources. In case of Computer, BNC, DVI.
XXXXXXXXXXXXXX Input Signal Frequency
Sync Mode Detected Comp Mode Total Operation Time Lamp Operation Time Lamp Replacement Lamp ON Cool Down Complete Fatal Error
: : : : : : : : : : : : :
Engine Type
: XXXXXX
Sync Polarity
XXXXX H ---.---KHz V ---.---Hz H --------V ---------------------XXXXXXXXXXXXXX 65535H 65535H 65535Times 65535Times 65535Times T99 L99 I99
P 0Z00023041XV111
The last four digits show firmware version.
Fatal Error Displays the number of times of each of the following abnormal terminations. T: Temperature problem L: Lamp problem I: Internal problem
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In case of S-Video, Video.
XXXXXXXXXXXXXX Video Signal Total Operation Time Lamp Operation Time Lamp Replacement Lamp ON Cool Down Complete Fatal Error
: : : : : : : :
----------------------------------65535H 65535H 65535Times 65535Times 65535Times T99 L99 I99
Engine Type
: XXXXXX P 0Z00023041XV111
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The last four digits show firmware version.
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5.1.2. Initializing AS (After Service) menu. (1). While AS menu is being displayed, press [Source] key and [Key+] key for 10 seconds simultaneously. [Lamp Operation time] The present value is made a clearance and it is made "0H" [Lamp ON] The present value is made a clearance and it is made "0 Times" [Lamp Replacement] "1" addition is carried out at the present value. [Cool Down Complete] The present value is made a clearance and it is made "0 Times" (2). While AS menu is being displayed, press [Source] key and [Key-] key for 10 seconds simultaneously. [Lamp Operation time] The present value is made a clearance and it is made "0H" [Lamp ON] The present value is made a clearance and it is made "1 Times" [Lamp Replacement] The present value is made a clearance and it is made "0 Times" [Cool Down Complete] The present value is made a clearance and it is made "0 Times" [Fatal Error] The present value of "LAMP ON" is cleared to 0.
5.1.3. Software DIP switch Special setting thet are impossible in ordinary menu is available. (1). How to display DIP-SW setting menu. While AS menu is being displayed, press [Menu] button on either the control or the projector’s control panel. Following sub-menu is displayed.
Switch on or off, if necessary DIP-SW No
BIT
Function
Default setting
Setting Value
SW1
7
Powre On WakeUP ON/OFF
0
0 : OFF,1 : ON
This function is to turn on the lamp automatically from the standby-mode when the main
SW4
1
Setup level (default)
0
0 : 0%, 1 : 7.5%
Set the default (initial value) of the "Setup level" of the "Project Common Items".
2
Lamp noise analysis mode
0
0 : Invalid, 1 : Valid
It is used at the time of analysis. Usually, please make it "invalid."
Note
(2). When DIP-SW setting is changed, turn off the power button and cool down the projecto as usual. After the cool down is complete, the new setting is effective.
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5.2. Download of a firmware EMP-S1_Downloader is the software that is used for downloading firmware of projectors. It allows us to download such firmware only with some Windows PC and Serial cable. Please note this software is only for EMP-S1 and cannot be used with other models.
5.2.1. Requirements for downloading (1). (2). (3). (4). (5).
Windows computer with serial port EMP-S1_Downloader Firmware file Projector on which firmware rewriting is performed PC Serial cable
5.2.2. Preparation for downloading (1). Create a folder in the PC and unzip the downloader program "EMP-S1_Downloader.Zip". (2). The firmware file is saved in the same folder. (3). Connect the Control terminal (RS-232C) of projector end and the Serial port of Computer end using a Serial cable.
5.2.3. Downloading (1). Start up the projector under the download mode.Insert the power cable with pressing the [Menu]. Please note that the unit is under download mode when indicators is lighting as follows; Operation indicator; Lamp Temperature indicator;
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(2). Start downloading (2-1) Double Click "Flash32.exe" and start up the software. Main screen as shown below will be displayed.
(2-2) Press [Select File] button and select Firmware file.
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(2-3) Press [Download] button and start downloading.
(3). Downloading completion Finished window appears and downloading has finished. Then, please disconnect projector's power cable.
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5.2.4. Verifying the downloading result (1). (2). (3). (4).
When downloading has finished, please plug the power cable. Press the Power button and start up the projector as usual. Select [All reset] from Menu and execute it. AS menu will be displayed on keeping on pressing [Esc] button over 7 sec. First line from the bottom shows version number.
5.2.5. Remarks (1). Please do not operate any other applications during execution of this program. (2). Please pay attention to prevent disconnection of cable or shutdown of PC or Projector. (3). When downloading doesn't start, please check the following items: (3-1)On this software, com1 has been chosen by PC port as the default. When you want to use other port, please change port from the Port setting screen.
(3-2)When downloading still doesn't work well, please disconnect the projector's power cable and then turn on the projector under download mode again.
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