Epson EH-TW480 Schematic
SERVICE MANUAL
Business Projector
EB-S01/W01/X14G/S11/X11/S02/S02H
EB-X02/W02/S12/S12H/X12/W12/X14
Home Projector
EH-TW480
CONFIDENTIAL
EB-S01/W01/X14G/S11/X11/S0 2/S02H/X02/W02/S12/S12H /X 1 2/ W 12 /X1 4 EH- TW 4 8 0
CONFIDENTIAL
NOTICE
All rights reserved. No part of this manual may be reproduced, stored in retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying,
recording, or otherwise, without prior written permission of SEIKO EPSON CORPORATION.
The contents of this manual should be handled with sufficient consideration for confidentiality reasons.
After publication of this manual, the parts and mechanism may be subject to change for improvement of their performance. Therefore, note that the descriptions given in this
manual may not coincide with the actual machine.
Other company or product names used herein are for identification purpose only and may be trademarks or registered trademarks of their respective owners. EPSON disclaims
any and all rights in those marks.
General Notice: Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their
respective owners. EPSON disclaims any and all rights in those marks.
Copyright © 2012 SEIKO EPSON CORPORATION.
SEIKO EPSON 2 Revision C
EB-S01/W01/X14G/S11/X11/S0 2/S02H/X02/W02/S12/S12H /X 1 2/ W 12 /X1 4 EH- TW 4 8 0
CONFIDENTIAL
About This Manual
This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of the product. The instructions and procedures included
herein are intended for the experienced repair technicians, and attention should be given to the precautions on the preceding pages.
Manual Configuration
CHAPTER 1. PRODUCT DESCRIPTIONS
Provides a general overview and specifications of the product.
CHAPTER 2. TROUBLESHOOTING
Describes the step-by-step procedures for the troubleshooting.
CHAPTER 3. DISASSEMBLY / ASSEMBLY
Describes the step-by-step procedures for disassembling and assembling the product.
CHAPTER 4. MAINTENANCE
Describes the points to be checked and the step-by-step procedures to inspect the troubling location from errors or abnormal phenomena of the
projected image.
CHAPTER 5. APPENDIX
Provides preventive maintenance procedures for servicing the product.
SEIKO EPSON 3 Revision C
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CONFIDENTIAL
IMPORTANT PRECAUTIONS IN SAFETY AND MAINTENANCE PERFORMANCE
Here describes the important points to keep in mind in repair and maintenance performance.
SYMBOLS
To prevent injury to the repair technicians and to protect the devices, the categorized safety instructions are provided in this manual with the symbols below. Be sure
to read and understand their meanings before proceeding to the next section.
Category
Danger
Warning
Caution
Prohibited
Matter
Instruction
Symbol Meaning
Indicates an extremely hazardous operation which, if ignored or operated
incorrectly, could result in serious or fatal personal injury.
Indicates a potentially hazardous operation which, if ignored or operated
incorrectly, could result in serious or fatal personal injury.
Indicates a potentially hazardous operation which, if ignored or operated
incorrectly, could result in minor injury or damage to equipment.
Indicates a prohibited action or operation in repair and maintenance
performance.
Indicates a compulsory action or operation that must be carried out in repair and
maintenance performance.
SEIKO EPSON 4 Revision C
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CONFIDENTIAL
SAFETY INSTRUCTIONS
The precautionary measures itemized below should be fully understood when
performing repair and maintenance procedures.
When disassembling/assembling, be sure to turn off the power
switch and pull out the power cable from the projector beforehand.
Never touch the current-carrying part or high temperature section
during a test operation, signal measurement or any other situations
that is necessary to perform the repair/maintenance work with the
power turned on and the cover removed.
Do not wear the metal products such as wrist watch, cuff buttons,
rings, tiepin etc. to avoid getting a electric shock.
Do not touch the lamp assy. or the parts around it. They are
extremely hot even after completed the cooling down operation, and
may cause a burn injury.
Therefore, leave the unit until it becomes cool enough before
performing maintenance work.
Never modify the product for any reason whatsoever.
(Except for a case that is under the instructions to do so.)
Never peer through the projection lens during repair/maintenance
work when the power is on.
(Such an action may cause a visual disability because of a very
strong light emission.)
Never use a deformed plug or a damaged power cable to this
product.
If any deformations or damages are found on the power cable or
plug section, replace it with a new specified power cable.
Never use the air blowers that contain flammable gas in repair/
maintenance work.
Never let the safety devices mounted in this product inactivated for
any reason whatsoever.
Never modify the safety devices or replace them with the ones that
are not designated for any reason whatsoever.
(Such actions may cause a fire or serious injury.)
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Never use or replace with any service parts that is not specified by
EPSON.
Be sure to perform the repair/maintenance work on the even and
stable work bench to prevent the product from dropping down or
mal-operation due to the improper setting of the product.
Be sure to wear the gloves during the repair/maintenance work to
avoid injuries by the parts with sharp edges such as metal plate or
the like.
To protect sensitive circuitry, follow the instructions below.
When disassembling or reassembling, be sure to wear static
discharge equipment such as an anti-static wrist strap and a
mat.
When replacing the circuit component such as a board or the
optical engine, be sure to get in contact with the anti-static
case containing the new one to the metal part of this product
before taking it out.
CONFIDENTIAL
Be careful not to drop a metal part such as a screw, a washer, or a
clip into the inside of the product. If such cases should occur
accidentally, never turn on the power supply until all the dropped
parts are found and removed.
After reassembling the product, check the followings before
turning the power on.
All the parts and screws are installed and secured to the
proper positions.
No cables are caught in the metal frames.
OTHER CAUTION
Since the lamp of this product contains mercury, be sure to dispose the used lamp
pursuant to the government’s law and regulations.
When performing the repair/maintenance work, be sure to use the
specified tools and follow the instructions that are specified in the
documents (service manual etc.) concerning to this product.
When carrying out the test operation, do not block the intake and
exhaust ducts.
(Such an action raises the internal temperature and may cause a
fire or a damages to the internal parts of this product.)
SEIKO EPSON 6 Revision C
EB-S01/W01/X14G/S11/X11/S0 2/S02H/X02/W02/S12/S12H /X 1 2/ W 12 /X1 4 EH- TW 4 8 0
CONFIDENTIAL
REVISION HISTORY
After first release of this manual, the parts and mechanism may be subject to change for improvement of their performance and the manual may be revised. Be sure
to always keep this manual up to date.
Revision Date Page of change Detail of change
A 2011.6.15 all First Release
B 2011.8.5 P.75
P.78
P.131
C 2012.5.28 all Addition of models.
Change of caution.
Addition of caution.
Addition of caution.
Full-fledged revision
SEIKO EPSON 7 Revision C
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CONFIDENTIAL
Contents
Chapter 1 Product Description
1.1 Model Name......................................................................................................... 11
1.2 Features........................................ ......................................................................... 12
1.3
Specifications ........................................................................................... 13
1.4 Dimensions............................................................................................... 15
1.5 Ceiling Mount................................................................... ........................ 17
Chapter 2 Troubleshooting
2.1 Required Tools ..................................................................................................... 22
2.2 Troubleshooting Procedure .................................................................................. 22
2.3 Exterior Check...................................................................................................... 23
2.3.1 Parts Layout Diagrams ................................................................................ 23
2.4 Error Indication and Problem diagnosis............................................................... 29
2.4.1 LED Indication ............................................................................................ 29
2.4.2 Troubleshooting based on LED Indications ............................................. ... 31
2.4.3 Troubleshooting from the Error Codes........................................................ 33
2.4.4 Troubleshooting without Error Indications ......... ..................................... ... 38
2.4.5 Troubleshooting on image abnormality........................... ............................ 44
2.4.6 Cable Connection and Projector’s Status .................................................... 46
2.5 Operation and Safety Check after repair .............................................................. 49
2.5.1 Each Operation Check................................................................................. 49
Chapter 3 Disassembly and Assembly
3.1 Precautions ........................................................................................................... 53
3.1.1 General Cautions in operation.................................... ................................. 53
3.1.2 Precautions................................................................................................... 54
3.1.3 Workflow ..................................................................................................... 54
3.1.4 Standard Operation Time............................................................................. 55
3.1.5 Tools............................................................................................................ 55
3.2 Flowchart.............................................................................................................. 56
3.3 Disassembly.......................................................................................................... 59
3.3.1 Air Filter........................................... ..................................... ...................... 59
3.3.2 Lamp............................................................................................................ 60
3.3.3 Rear Foot ..................................................................................................... 61
3.3.4 Front Foot.................................................................................................... 62
3.3.5 Upper Case (assembly)................................................................................ 62
3.3.5.1 SW Board............................................................................................ 67
3.3.5.2 HK Assy (EB-X11/S12/S12H/X12/W12/X14 EH-TW480 only) ...... 69
3.3.5.3 Shutter Switch............................................................... ...................... 70
3.3.5.4 Upper Case.......................................................................................... 72
3.3.6 MA Board (assembly) ................................................................................. 74
3.3.6.1 IF Case.................................. .............................................................. 78
3.3.6.2 MA Board / RS Board (EB-S11/X11 only)........................................ 79
3.3.7 Speaker ........................................................................................................ 81
3.3.8 Optical Engine............................................................................................. 82
3.3.8.1 Auto Iris.............................................................................................. 83
3.3.8.2 Focus Ring / Zoom Ring..................................................................... 85
3.3.9 Lamp Fan..................................................................................................... 86
3.3.10 EX Duct (assembly)................................................................................... 87
3.3.10.1 TH Board (2) / EX Fan..................................................................... 88
3.3.11 BA Power Supply (assembly).................................................................... 89
3.3.11.1 BA Unit / SCI Cable......................................................................... 93
3.3.11.2 PS Filter ............................................................................................ 94
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CONFIDENTIAL
3.3.12 INT Duct (assembly) ............................................................. .................... 96
3.3.12.1 IR Board............................................................................................ 97
3.3.12.2 INT Fan / TH Board (1).................................................................... 99
3.3.13 Lower Case.............................................................................................. 101
3.4 Safety Check after Servicing.............................................................................. 103
3.5 Writing the DR Data........................................................ ................................... 106
3.5.1 Overview.................................................................................................... 106
3.5.2 Preparation................................................................................................. 107
3.5.3 Operating Procedure.................................................................................. 107
3.5.3.1 Workflow.......................................................................................... 107
3.5.3.2 Check in advance.............................................................................. 108
3.5.3.3 Replacing the Optical Engine ........................................................... 110
3.5.3.4 Replacing the MA Board .................................................................. 112
3.6 Reference (Part Names given in the SPI)........................................................... 116
Chapter 4 Maintenance
4.1 Precautions ......................................................................................................... 119
4.1.1 General Cautions in operation.................................... ............................... 119
4.1.2 Tools............................. ............................................................................. 120
4.2 Replacing the Internal Parts/Components of Optical Engine............................. 121
4.2.1 N POLARIZER UNIT;B/R.......................................... ............................. 122
4.2.2 CONDENSER LENS;D/FB/FG2/R.......................................................... 125
4.2.3 BDM/GDM................................................................................................ 129
4.2.4 MIRROR;R................................................................................................ 131
4.2.5 PBS MASK ASSY.2 ................................................................................. 133
4.2.6 MULTI LENS;A........................................................................................ 135
Chapter 5 Appendix
5.1 AS (After Service) Menu ................................................................................... 139
5.1.1 How To Display the AS (After Service) Menu......................................... 139
5.1.2 Displaying the Pages ................................... ..................................... ......... 139
5.1.3 Initializing (Resetting) the AS Menu Values ............................................ 142
SEIKO EPSON 9 Revision C
PRODUCT DESCRIPTION
CHAPTER
1
CONFIDENTIAL
EB-S01/W01/X14G/S11/X11/S0 2/S02H/X02/W02/S12/S12H /X 1 2/ W 12 /X1 4 EH- TW 4 8 0
Product Description CONFIDENTIAL
1.1 Model Name
EB-S01/W01/X14G/S11/X11/S02/S02H/X02/W02/S12/S12H/X12/W12/X1 4 EH-TW480 are divided into three groups by their mechanical differences. The classified model
names are provided below.
Type Model Name
Business Type A
Optical Zoom
(Manual)
EB-S01 N/A SVGA
EB-W01
EB-X14G XGA
EB-S02
EB-S02H
EB-X02
EB-W02 WXGA
EB-S11 N/A SVGA N/A
3
N/A SVGA
3
Native
resolution
WXGA
XGA
Horizontal Keystone
Correction
N/A
External View
EB-X11
EB-S12
Business Type B
Home Type EH-TW480
EB-S12H
EB-X12
EB-W12 WXGA
EB-X14 XGA
3 XGA
N/A SVGA
3
XGA
3
3 WXGA 3
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Business Type B: EB-S11/X11/S12/S12H/X12/W12/X14
Business Type A: EB-S01/W01/X14G/S02/S0 2H/X02/W02
Home Type: EH-TW480
Product Description CONFIDENTIAL
1.2 Features
The EB-S01/W01/X14G/S11/X11/S02/S02H/X02/W02/S12/S12H/X12/W12/X14
EH-TW480 are portable compact business/home projectors with the following
features:
Auto Vertical-Keystone
(EB-X14G/X11/S02/S02H/X02/W02/S12/S12H/X12/W12/X14 EH-TW480
only)
When the sensor of the projector detects the change in setting, the projector
automatically corrects the keystone in the vertical direction.
Horizontal Keystone Adjuster
(EB-X11/S12/S12H/X12/W12/X14 EH-TW480 only)
This allows you to quickly correct horizontal distortion of the projected image.
Direct Power On/Off
No cool-down period is needed.
Project screen for WXGA (16:10)
(EB-W01/W02/W12 EH-TW480 only)
Auto Iris
With an optional document camera (ELPDC06/ELPDC11), you can magnify and
project the images of your documents.
USB connection for projection (USB Display) is available.
USB term inal (Type B) for USB Display
Slide show is available
(EB-S11/X11/S12/S12H/X12/W12/X14 EH-TW480 only)
The images in a USB flash drive can be projected without using a computer
USB terminal (Type A) for USB Display
HDMI terminals
(EB-S02H/S12H/X12/W12/X14 EH-TW480 only)
Enhanced security functions
Password protection
Operation Lock
Anti-theft Lock
Figure 1-1. External View
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1.3 Specifications
Product Description CONFIDENTIAL
Model
Item
Size
LCD
Specification
of main part
Projection
Lens
Lamp
Normal
Brightness
Sound output 2 W x 1 Monaural
HDMI terminal N/A x 1 N/A x 1
Network Function
USB terminal USB I/O
Operating Temperature
mode
Eco mode 2080 lm 2400 lm 2080 lm 2080 lm 2240 lm 2240 lm 2400 lm 2240 lm
Pixel number
Native resolution SVGA WXGA XGA SVGA XGA SVGA XGA WXGA SVGA XGA WXGA XGA WXGA
Aspect ratio 4:3 16:10 4:3 4:3 16:10 4:3 4:3 16:10 4:3 16:10
Focus Type Manual focus
Zoom
Type UHE (E-TORL)
Power consumption 200 W
Life
Color mode:
Dynamic,
Zoom: Wide
Wired LAN N/A
Wireless LAN Unit N/A
Temperature 5°C to 35°C
Humidity 20% to 80%
Type
Ratio 1.0 - 1.35 1.0 - 1.2 1.0 - 1.35 1.0 - 1.2 1.0 - 1.35 1.0 - 1.2 1.0 - 1.35 1.0 - 1.2
Normal
Eco 5000 H
Type A x 1 (S02 is excluded)
Type B x 1
EBS01
0.55 inch
(without
MLA)
480,000
dots
(800 x
600) x 3
Digital
Zoom
EB-
W01
0.59 inch
(with
MLA)
1,024,000
dots
(1280 x
800) x 3
Manual optical zoom
2600 lm 3000 lm 2600 lm 2600 lm 2800 lm 2800 lm 3000 lm 2800 lm
EB-
X14G
0.55 inch
(with
MLA)
786,432
dots
(1024 x
768) x 3
1 W x 1
Monaural
EBS11
480,000
dots
(800 x
600) x 3
Digital
Zoom
2 W x 1 Monaural 1 W x 1 Monaural 2 W x 1 Monaural
EBX11
0.55 inch (without MLA)
786,432
dots
(1024 x
768) x 3
Manual
optical
zoom
EBS02
480,000 dots
(800 x 600) x 3
Digital Zoom Manual optical zoom Digital Zoom Manual optical zoom
EB-
S02H
EBX02
786,432
dots
(1024 x
768) x 3
4000 H
EB-
W02
0.59 inch
(with
MLA)
1,024,000
dots
(1280 x
800) x 3
EBS12
480,000 dots
(800 x 600) x 3
EB-
S12H
0.55 inch
(without MLA)
EBX12
786,432
dots
(1024 x
768) x 3
EB-
W12
0.59 inch
(with
MLA)
1,024,000
dots
(1280 x
800) x 3
EBX14
0.55 inch
(with
MLA)
786,432
dots
(1024 x
768) x 3
EH-
TW480
0.59 inch
(with
MLA)
1,024,000
dots
(1280 x
800) x 3
SEIKO EPSON 13 Revision C
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Product Description CONFIDENTIAL
Model
Item
Operating Altitude
Start-up period 5 seconds
Warm-up period 30 seconds
Cool-down period Instant off
Power supply voltage 100 - 240 V AC
100-120V
Area
(JAPAN,
USA,etc.)
Power
Consumption
220-240V
Area
(Europe,
etc.)
Rated Voltage & Current 100 - 240 V AC 50/60 Hz 2.9 - 1.3 A
Size
Weight Approx. 2.3 kg/5.1 lbs
Fan noise
Excluding feet
Maximum Dimension 228 (D) x 295 (W) x 79 (H)
Normal mode 37 dB
Eco mode 29 dB
Normal 0 m to 2286 m <0 ft to 7500 ft>
High altitude mode Over 1500 m / 4,921 ft
ON
Lamp
Standby
(Network)
Lamp
Standby
(Network)
(Normal)
ON
(Eco)
ON 2.9 W
OFF 0.36 W
ON
(Normal)
ON
(Eco)
ON 3.3 W
OFF 0.47 W
Unit:
mm
EBS01
EB-
W01
EB-
X14G
EBS11
EBX11
EBS02
EB-
S02H
EBX02
W02
± 10%, 50/60 Hz
283 W
234 W
270 W
223 W
228 (D) x 295 (W) x 77 (H)
EB-
EBS12
EB-
S12H
EBX12
EB-
W12
EBX14
EH-
TW480
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3XM4 9mm
20
2.6
3.5
91
3724.4
101
123
70
95.2
29.8
18.2130.8
36.3
76
174.5
25.8
79.5
29
242
127
22.5
92.3
12
108.3
150
110
228
295
169.8
Unit: mm
1.4 Dimensions
Product Description CONFIDENTIAL
SEIKO EPSON 15 Revision C
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3XM4 9mm
0.8
0.1
0.1
3.6
1.50.96
3.98
4.84
2.8
3.75
1.17
0.725.15
1.43
3.0
6.87
1.02
3.13
1.1
9.53
5.00
0.89
3.63
0.5
4.26
5.91
4.33
8.98
11.6
6.69
Unit: inch
Product Description CONFIDENTIAL
SEIKO EPSON 16 Revision C
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Unit: mm
1.5 Ceiling Mount
81
14
16
159
Product Description CONFIDENTIAL
18°
160
18°
150
ELPMB23
18°
200
18°
79
20491
68
SEIKO EPSON 17 Revision C
159
EB-S01/W01/X14G/S11/X11/S0 2/S02H/X02/W02/S12/S12H /X 1 2/ W 12 /X1 4 EH- TW 4 8 0
Unit: inch
3.2
0.6
0.6
6.26
Product Description CONFIDENTIAL
18°
6.30
18°
5.91
ELPMB23
18°
7.87
18°
3.1
8.033.6
2.7
SEIKO EPSON 18 Revision C
6.26
EB-S01/W01/X14G/S11/X11/S0 2/S02H/X02/W02/S12/S12H /X 1 2/ W 12 /X1 4 EH- TW 4 8 0
Unit: mm
81
16
14
159
Product Description CONFIDENTIAL
160
25
ELPFP13: 668-918mm
ELPFP14: 918-1168mm
668
25
135 85 60 67
18°
18°
ELPMB23
200
161
50257
50505050
18°
18°
79
91 204
15968
SEIKO EPSON 19 Revision C
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Unit: inch
3.2
0.6
0.6
6.26
Product Description CONFIDENTIAL
6.30
1.0
ELPFP13: 26.3-36.1inch
ELPFP14: 36.1-46.0inch
26.3
1.0
5.31 3.3 2.4 2.6
18°
18°
ELPMB23
7.87
6.34
2.010.1
2.02.02.02.0
18°
18°
3.1
3.6 8.03
6.262.7
SEIKO EPSON 20 Revision C
TROUBLESHOOTING
CHAPTER
2
CONFIDENTIAL
EB-S01/W01/X14G/S11/X11/S0 2/S02H/X02/W02/S12/S12H /X 1 2/ W 12 /X1 4 EH- TW 4 8 0
Check the parts to be repaired visually.
(See “ 2.3 Exterior Check (p23)”.)
Problem diagnosis and troubleshooting
If LED error indication is indicated,
=> See “ 2.4.2 Troubleshooting based on LED Indications (p31)”.
If you know the error code
=> See “ 2.4.3 Troubleshooting from the Error Codes (p33)”.
If abnormality related to the projector’s performance is occurring,
=> See “ 2.4.4 Troubleshooting without Error Indications (p38)”.
If image quality is abnormal,
=> See “ 2.4.5 Troubleshooting on image abnormality (p44)”.
Reassembly, operation check and Safety check*
*In the case that a safety device (p.103) is repaired
or maintained.
Start
Troubleshooting CONFIDENTIAL
2.1 Required Tools
The following tools and equipment will be required in order to carry out
troubleshooting, and so you should check that they are on hand.
Name Qt. Application/Other
Projection screen 1 To project image on
Host computer 1
PC cable 1
Video equipment 1
Audio and Video cables
(HDMI/S-video/
Composite/USB,
and audio for those listed
above)
Multi meter 1 To measure resistance values and voltages (AC/DC)
Double-sided tape q.s. To secure parts
General tools 1set Tools given in “ 3.1.5 Tools (p55)”
Note 1: q.s.: Sufficient quantity
2: When repairing an EB-W01/W02/W12/EH-TW480 (16:10 wide panel model), prepare
your video source and device considering the full screen display of 16:10 aspect.
To output audio and video data to the projector
(To check the component video input)
To transfer audio and video data to the projector
(To check the HDMI, S-Video, composite video, USB
1
input)
each
2.2 Troubleshooting Procedure
This chapter describes troubleshooting procedure starting from error messages/status to
diagnose problems. Refer to the descriptions and remedies below to specify the
troubled part, and carry out the necessary repair or replacement.
Figure 2-1. Troubleshooting Workflow
SEIKO EPSON 22 Revision C
EB-S01/W01/X14G/S11/X11/S0 2/S02H/X02/W02/S12/S12H /X 1 2/ W 12 /X1 4 EH- TW 4 8 0
Troubleshooting CONFIDENTIAL
2.3 Exterior Check
When repairing this product, carry out exterior check of the target parts/units as
necessary.
Check Items
Target part Check item
Any damage/deformation/cracking due to external
forces?
Upper Case
IF Case
SW Board
Lamp Cover
Air Filter Cover
Projection Lens
Lower Case
Foot
Is it fixed to the Lower Case correctly?
Any foreign object/dirt on the IR receivers (Front
and Rear)?
Any damage/deformation/cracking due to external
forces?
Is it fixed with screws correctly?
Is it fixed to the Lower Case and Upper Case
correctly?
Is it fixed to Upper Case correctly?
Any stuck buttons?
Does Buttons work smoothly?
Is it fixed to Upper Case correctly?
Any damage on the latch to operate the Interlock
Switch? (Check for it with the cover removed.)
Any damage/deformation/cracking due to external
forces?
Is it fixed to the Upper Case correctly?
Does Focus Ring work smoothly?
Does Zoom Ring work smoothly?
Any dirt/scratches on the projection lens?
Any damage/deformation/cracking due to external
forces?
Any foreign object/dirt on the filter cover or the
vents?
Does Front Foot work smoothly to adjust height?
Any Foot Rubber detached?
Target part Check item
Any deformation/discoloration on the connector/
AC Inlet
Interfaces
Air Filter
HK Assy
Lens Shutter
Lamp
terminals?
Any damage on the socket?
Any deformation/discoloration on the connector/
terminals?
Any foreign objects on the connectors/terminals?
Is it fixed correctly?
Any dirt on the filter? (check for it with the filter
removed.)
Any dirt/foreign materials on the fan inside the
filter?
Any damage/deformation/cracking due to external
forces?
Is it fixed to Upper Case correctly?
Does it work smoothly?
Any deformation/discoloration on it?
Is it fixed to Upper Case correctly?
Does it work smoothly?
Any deformation/discoloration on the frame?
Any deformation/discoloration on the connector?
Are the screws that secure the Lamp tightened
securely?
Any dirt on the glass surface?
2.3.1 Parts Layout Diagrams
The following are the diagrams to confirm and locate the parts and/or components to be
repaired. The parts names used here indicate the references linked to the page titles for
their disassembling procedures.
SEIKO EPSON 23 Revision C
EB-S01/W01/X14G/S11/X11/S0 2/S02H/X02/W02/S12/S12H /X 1 2/ W 12 /X1 4 EH- TW 4 8 0
Optical Engine (p82)
Auto Iris (p83)
Lamp (p60)
OPTICAL PARTS
Troubleshooting CONFIDENTIAL
Figure 2-2.
SEIKO EPSON 24 Revision C
EB-S01/W01/X14G/S11/X11/S0 2/S02H/X02/W02/S12/S12H /X 1 2/ W 12 /X1 4 EH- TW 4 8 0
PS Filter (p94)
BA Unit (p.93)
Filter Board (PS Filter (p94))
Interlock Switch (PS Filter (p94))
POWER SUPPLY
Troubleshooting CONFIDENTIAL
Figure 2-3.
SEIKO EPSON 25 Revision C
EB-S01/W01/X14G/S11/X11/S0 2/S02H/X02/W02/S12/S12H /X 1 2/ W 12 /X1 4 EH- TW 4 8 0
INT Fan / TH Board
(1) (p99)
Lamp Fan (p86)
EX Fan (p.88)
COOLING SYSTEM COMPONENTS
Troubleshooting CONFIDENTIAL
Figure 2-4.
SEIKO EPSON 26 Revision C
EB-S01/W01/X14G/S11/X11/S0 2/S02H/X02/W02/S12/S12H /X 1 2/ W 12 /X1 4 EH- TW 4 8 0
Speaker (p81)
TH Board (2) (p.88)
Shutter Switch (p70)
HK Assy (EB-X11/S12/S12H/X12/
W12/X14 EH-TW480 only) (p69)
IR Board (p.97)
TH Board (1) (p.97)
SENSORS/SPEAKER
Troubleshooting CONFIDENTIAL
Figure 2-5.
SEIKO EPSON 27 Revision C
EB-S01/W01/X14G/S11/X11/S0 2/S02H/X02/W02/S12/S12H /X 1 2/ W 12 /X1 4 EH- TW 4 8 0
SW Board (p67)
RS Board
(EB-S11/X11 only) (p.79)
MA Board / RS Board
(EB-S11/X11 only) (p79)
CIRCUIT BOARDS
Troubleshooting CONFIDENTIAL
Figure 2-6.
SEIKO EPSON 28 Revision C
EB-S01/W01/X14G/S11/X11/S0 2/S02H/X02/W02/S12/S12H /X 1 2/ W 12 /X1 4 EH- TW 4 8 0
Temperature LED
Power LED
Lamp LED
Red
Red
* Fast Blink
Red
Red
Red Red
Red
Red
Troubleshooting CONFIDENTIAL
2.4 Error Indication and Problem diagnosis
2.4.1 LED Indication
The control panel on the projector has three LEDs to indicate the projector’s operation
status. When errors occur, you can identify error status with those LED indications.
Figure 2-7. LED Indicators
Abnormal Status
ON Blink OFF
LED Status Error Problem/Error Status
Internal error
Video sub-processor
error
Abnormality is detected from the elements
on MA Board.
Internal error (RAM)
Fan error
Sensor error
High Temp error
(overheating)
Lamp problem
Lamp failure
Abnormality is detected from a fan.
Abnormality is detected from a sensor.
[Phenomenon]
The lamp turns off automatically, and the
projection stops. If the projector has been
left untouched for 5 minutes, it enters the
standby mode.
[Status]
The internal temperature rises over the
specified level.
Abnormality has occurred to the lamp
and the ignition/illumination processes
failed.
Lamp Cover is not securely closed.
SEIKO EPSON 29 Revision C
Power Supply
(Ballast) error
Auto Iris error
Abnormality is detected from Ballast.
Abnormality is detected from Auto
Iris.
EB-S01/W01/X14G/S11/X11/S0 2/S02H/X02/W02/S12/S12H /X 1 2/ W 12 /X1 4 EH- TW 4 8 0
Red
Orange
Orange
Warning Status
ON Blink OFF Varies according to the projector status
LED Status Cause Status/Check point
This is not an abnormality. However, if the
temperature continues to rise higher afterwards,
projection stops automatically.
High Temp
Warning
[Remedy]
Check that the air filter and the exhaust vent
are clear, and that the projector is not placed
against a wall.
If the air filter is clogged, clean or replace it.
Troubleshooting CONFIDENTIAL
Warning to
replace Lamp
Replace the lamp with a new one.
SEIKO EPSON 30 Revision C
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