Epson | EMP-S3 | Service manual | Epson EMP-S3 Service manual

Data Projector
Service Manual
EMP-S3
EMP-S3
INTRODUCTION
This Service Manual describes the hardware information necessary for troubleshooting and
field service of the EMP-S3 DATA PROJECTOR.
Before starting service on this unit, always check the EPSON website for additional up-to date
service information provided in Technical Information Bulletins.
HOW TO USE THE SERVICE MANUAL
Before you start the maintenance service, read the SAFETY INSTRUCTIONS carefully.
The contents are as follows:
• Safety Instructions: Operator Safety, Maintaining the projector in good condition
• Chapter 1:
PRODUCT SPECIFICATION (Part name, System function,
Specification, etc.)
• Chapter 2:
THEORY OF OPERATION (Hardware, Internal connection,
Function of units, etc.)
• Chapter 3:
TROUBLE SHOOTING
• Chapter 4:
DISASSEMBLY & ASSEMBLY (Procedures to disassemble the
main unit)
• Chapter 5:
APPENDIX (AS (After Service) menu)
VCCI RADIO FREQUENCY INTERFERENCE SELF RESTRICTION
This product is Type 1 information equipment and uses radio frequency energy. It fully complies with the rules of the Voluntary Control Council for Interference by Information Technology Equipment (VCCI). Accordingly, if this product is used in a residential area or place
situated close to residential area, it may interfere with reception of televisions or radios in the
neighborhood. Follow the instruction manual to avoid mishandling of this product.
TRADEMARK
EPSON is a trademark of SEIKO EPSON CORPORATION.
NOTICES
• This document should not be reproduced in whole or in part without the written permission
of SEIKO EPSON CORPORATION.
• Any information in this document is subject to change without prior notice.
• The information and specifications 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.
• Any influence by utilizing the document may be out of our responsibility regardless the
item 3 above.
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EMP-S3
PRECAUTIONS
Some procedures require specific precautions that must be followed, and those will be noted
throughout this manual. Note the following precaution definitions:
WARNING
W A R N IN G
Procedures which, if not strictly observed, could result in personal injury are
described under the heading WARNING
CAUTION
C A U T IO N
CAUTION signals a precaution which, if ignored, could result in damage to equip-
ment.
REASSEMBLY
If assembly needs special attention or the procedure is different from the reversed
disassembly procedure, the correct procedure is described under the heading
REASSEMBLY.
CHECK POINT
C H E C K
P O IN T
Important tips for procedures are described under the heading CHECK POINT.
2005 SEIKO EPSON CORPORATION
SEIKO EPSON
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EMP-S3
Manual Revision History
History
Date
Detail of change
Rev.A
Rev.B
2005.3.11
2006.5.9
First Release
Change in P.4-15.
Service memo
Make a note here of important technical information from Technical Information bulletins.
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EMP-S3
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
• Do not touch the lamp assy and the area around it with bare hands immediately after
turning the power off, or even after cool-down period is completed since the lamp and
the area around it may still remain hot.
• When 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 projector 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 your eyes may be injured.
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.
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EMP-S3
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), bring the static-proof bag containing the new parts into
contact with a metallic section of the projector before taking out the component from the
static-proof bag.
2. USE OF GENUINE PARTS
• When replacing the structural components inside the projector (including the lamp assy),
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.
Note: These are simplified tests that can be carried out at a repair centre that is not
equipped with full safety testing equipment.
† Test items
1). Insulation resistance test
2). Ground continuity check
3). Illumination check
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EMP-S3
† Testing procedure
Carry out testing in the order given below.
Repair
Insulation resistance test
Ground continuity check
Illumination check
End
Safety inspections
† Testing methods
1). Insulation resistance test
• Testing apparatus: Insulation ohmmeter (Rating: 500 V/100 MΩ)
Check Item
Insulation resistance check
Tool
Standard
Insulation ohmmeter
Insulation resistance
should be 10 MΩ or
more.
• Insulation ohmmeter settings
Ground terminal
1.
2.
3.
4.
Line terminal
Display
5.
6.
7.
8.
9.
Set the range selection switch to 500 V.
Connect the black lead wire to the ground terminal.
Connect the red lead wire to the line terminal.
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.
Next, insert the probe of the red lead wire into a.
Set the measure switch to LOCK, and then measure the
insulation resistance after 1 minute.
Check that the insulation resistance after 1 minute is
10 MΩ or more.
Next, measure the insulation resistance at (2) (between
b and c) in the diagram below in the same way as for
(1).
Check that the insulation resistance at (2) after 1 minute
is 10 MΩ or more.
Measure switch
a
Power supply lines
b
Range selection
switch
Projector AC inlet
(1)
(2)
! Caution
Because high voltage (500 V) is present,
do not touch the probe during testing.
c
Computer IN connector
Exposed metal part of projector
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2). Ground continuity check
• Testing apparatus: Multimeter (with sensitivity down to 0.1 Ω)
Check Item
Tool
Standard
Ground continuity check
Multimeter
Should be no resistance
(0.5 Ω or less)
• Multimeter settings
Display
1.
2.
3.
4.
5.
Turn on the power switch.
Set the range selection switch to Ω.
Connect the black lead wire to the COM terminal.
Connect the red lead wire to the V/Ω/Hz terminal.
Check that the resistance at (1) in the diagram below is
0.5 Ω or less.
DC/AC, SW
a
Power supply
lines
Range selection switch
b
(1)
Projector AC inlet
Terminals
c
COM
V, Ω, Hz
Computer IN connector
Exposed metal part of projector
3). Illumination check
• Test conditions: Input a PC or video signal to the projector and check the illumination for about 5 minutes.
• Evaluation: Projector should operate normally with no smoke or fire.
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EMP-S3
† 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.
• 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 FPC cable from the CN903 of the MA board assembly, release
the connector locks. To release the connector lock, push up both ends of the connector
simultaneously with tweezers.
CN903
Enlarged view of CN903
Locked
Unlocked
• When disconnecting the three FPC cables for the light valves from their connectors,
release the connector locks first.
Locked
SEIKO EPSON
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EMP-S3
3. NECESSARY REQUIREMENTS FOR SERVICE TECHNICIANS
Service technicians who carry out repairs and servicing work on the EMP-S3 must possess the
following knowledge and abilities:
• The service technician must have read and fully understood the contents of the User's
Guide, especially projector operation.
• The service technician must have a fundamental knowledge of working with electricity,
including safety procedures, knowledge regarding electrical circuits, and knowledge
regarding static electricity.
4. Others
• 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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Chapter 1 Product Specifications
1.1 Product Features ..................................................................................... 1-2
1.1.1 Features of the Projector............................................................... 1-2
1.2 Components, Connectors and Switches.................................................. 1-4
1.2.1 External Components.................................................................... 1-4
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 Port ............................................................................. 1-10
1.4.2 USB Interface .............................................................................. 1-11
1.4.3 S-Video Interface......................................................................... 1-11
1.4.4 Audio Input Interface/CVBS Input Interface ................................ 1-12
1.5 External Views ....................................................................................... 1-13
Chapter 2 Theory of Operation
2.1 Hardware Overview ................................................................................. 2-2
2.1.1 Component Connection Diagram .................................................. 2-3
2.1.2 Control Circuitry............................................................................. 2-4
2.2 Optical Engine.......................................................................................... 2-5
2.2.1 Lamp Assy..................................................................................... 2-7
2.3 MA Board ................................................................................................. 2-8
2.3.1 External View of MA Board ........................................................... 2-8
2.3.2 Overview of Operation................................................................... 2-9
2.4 Interface Connectors.............................................................................. 2-10
2.5 Power Supply Ballast Unit...................................................................... 2-11
2.5.1 Power Supply Circuit Block Diagram........................................... 2-11
2.5.2 Overview of Operation................................................................. 2-12
2.5.3 Connector CN2000 Pin Layout.................................................... 2-13
2.6 RC Board Assembly............................................................................... 2-14
2.7 Speaker.................................................................................................. 2-15
2.8 Temperature Control.............................................................................. 2-16
2.8.1 Sensors and Switches................................................................. 2-16
2.8.2 Fan Operation ............................................................................. 2-18
2.9 LED Indicators ....................................................................................... 2-21
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 Overview .................................................................................................. 3-3
3.2.1 Exterior Check............................................................................... 3-4
3.2.2 Internal Cable Check..................................................................... 3-5
3.2.3 Power Supply On/Off..................................................................... 3-6
3.2.4 Image Display and Quality ............................................................ 3-8
3.2.5 Audio Output ............................................................................... 3-10
3.2.6 Control Panel............................................................................... 3-11
3.2.7 Remote Control Operation .......................................................... 3-12
3.2.8 Other ........................................................................................... 3-13
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Chapter 4 Disassembly/Assembly
4.1 Overview .................................................................................................. 4-2
4.1.1 Precautions ................................................................................... 4-2
4.1.2 Tools and Equipment .................................................................... 4-4
4.1.3 Projector-Specific Service Precautions ......................................... 4-4
4.2 Projector Disassembly and Assembly...................................................... 4-6
4.2.1 Removing the Model Name Plate.................................................. 4-8
4.2.2 Removing the Lamp Lid Assy and Lamp Assy.............................. 4-8
4.2.3 Removing the Lens Cap Unit ........................................................ 4-9
4.2.4 Removing the Rear Foot/Foot Rubber .......................................... 4-9
4.2.5 Removing the Front Foot Unit ..................................................... 4-10
4.2.6 Removing the Air Filter Frame and Air Filter, A........................... 4-10
4.2.7 Removing the Upper Case .......................................................... 4-11
4.2.8 Removing the RC Filter, Upper Cushion, PS Cushion,
SW1 Light Shade Sheet, SW Board Assy, SW Cable, and Upper Case Sheet
4-13
4.2.9 Removing the MA Board Assy. ................................................... 4-16
4.2.10 Removing the IF Case Set, RC Filter and SW2 Light Shade Sheet4-20
4.2.11 Removing the MA Plate............................................................... 4-21
4.2.12 Removing the Optical Engine...................................................... 4-22
4.2.13 Removing the Focus Ring and Projection Lens Knob................. 4-22
4.2.14 Removing the Projection Lens Unit ............................................. 4-23
4.2.15 Removing the RC Board Assy, Cable RCR, Safety Switch, Intake Duct, Intake
Fan (BG0703-B044), and Intake Fan (BG0703-B044-00L-E1)4-24
4.2.16 Removing the Exhaust Fan Assy, Fan 80, and Outer Exhaust Duct4-26
4.2.17 Removing the TH Board Assy, Cable Assy RC,
Lamp Cover Detection Switch, and Inner Exhaust Duct4-28
4.2.18 Removing the Power Supply Assy. ............................................. 4-29
4.2.19 Removing the Lamp Shield Plate and Lower Case..................... 4-30
Chapter 5 Appendix
5.1 AS (After Service) Menu .......................................................................... 5-2
5.1.1 How To Display the AS (After Service) Menu ............................... 5-2
5.1.2 Initializing (Resetting) the AS Menu Values .................................. 5-3
5.1.3 Software DIP Switches.................................................................. 5-4
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Chapter 1 Product Specifications
EMP-S3
1.1 Product Features
The EMP-S3 is a B4-sized portable projector that is the smallest and lightest in its class. It
offers high-quality color images allowing you to enlarge and project from personal computers,
video equipment (VCRs, video cameras, video disc players, etc.).
1.1.1 Features of the Projector
Compact and lightweight
• B4-sized dimensions: 246 mm x 327 mm x 98 mm (D x W x H)
• 2.5kg weight
Brilliant, attractive images
The Projector employs a high-luminance lamp assembly (UHE-135W) and an optical block
that allows the S3 to project images at a brightness of up to 1600 lm.
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 1.677 billion pixels).
Quiet operation
Operating noise at low brightness is only 28 dB.
Brief cool-down period (Instant-Off function)
Cool-down is completed in just a few seconds when turning the projector power off.
Easy to Operate
The accessory remote control can be used for operations such as Freeze, E-Zoom, Effect,
A/V Mute, User's Logo Capturing and Resize functions.
Direct Power-ON
The projector is automatically turned on when an AC connector is plugged in.
Password Protect function
Activating the Password Protection Function prevents unauthorized persons from using the
projector.
Vertical keystone correction
This function allows users to correct vertical image distortion easily.
Color mode function
The images can be projected at the optimum image quality for the projecting environment by
selecting the image source and environment mode from one of seven preset settings.
• Photo
• Presentation
• Theatre
• Game
• sRGB
• Black Board
• Sports
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EMP-S3
Automatic Incoming Signal Detection Function
The Search button on the remote control and the Source Search button on the control panel allow
the user to switch between images from different pieces of equipment connected to the projector each time either one of the two buttons is pressed. While the projector is detecting a source,
it displays the Search in Progress screen to show the user which source being detected.
Instant-Off Function
This lets the user to turn the projector off quickly by reducing the cool-down period. When the
Power button on the remote control or the control panel is pressed, the lamp is turned off and
then the end of power-off process is indicated by two beeps. The fans stops soon after the beep
regardless of the internal temperature.
Fan Speed Switch Function
When using the projector at high altitude (higher than 2,000 meters above sea-level), the fan
speed should be increased to cool the projector efficiently and extend the lamp life since air
density is low at high altitude. Select High for the Fan Speed in the Extended Menu to increase the
fan speed.
Image Shift Function
This allows the user to adjust the image position without moving the projector. The image
retains its original aspect ratio after it is moved. This function is useful when it is difficult to
set the projector straight in front of the screen.
After correcting keystone distortion and adjusting the zoom, a screen to select the image position is displayed. The user can select one of nine image position settings on the screen.
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EMP-S3
1.2 Components, Connectors and Switches
1.2.1 External Components
Lamp cover
Security lock ( )
Control panel
Focus ring
Remote control
light-receiving area
Air exhaust vent
Front adjustable foot
Lens cover
Foot adjust lever
Figure 1-1. Main Unit Front
Foot adjust lever
Front adjustable foot
Lens cover tether
attachment point
Air filter
(air intake vent)
Ceiling mount
attachment points
(3 points)
Figure 1-2. Main Unit Bottom
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EMP-S3
Computer port
S-Video port
USB port
Monitor Out port
Video port
Remote control light-receiving area
Power inlet
Speaker
Rear adjustable foot
Audio input
Figure 1-3. Input and Output Connectors
[Enter] button
Automatically adjusts analogue RGB images from computers and RGB video images to the optimum images.
If a configuration menu or help screen is displayed, it
accepts and enters the current selection.
[Menu] button
Displays and closes the configuration menu.
[Power] button
Turns the projector power on or off.
[Esc] button
Stops the current function.
Displays the previous screen or menu
while viewing a configuration menu.
Indicators
The colour of the indicators and whether
they are flashing or lit shows the state of
this projector.
[Help] button
Displays and closes the help, which
shows solutions if a problem occurs.
[Source Search] button
The input source is automatically searched for in the following order, and the input image from the connected
equipment is projected.
[Wide] [Tele] button
Adjusts the image size. If a configuration menu
or help screen is displayed, it selects menu
items and setting values.
Computer port
[
][
]button
Press to correct keystone distortion.
If a configuration menu or help screen is displayed, it
selects menu items and setting values.
S-Video port
Video port
Figure 1-4. Control Panel
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EMP-S3
1.2.2 Internal Components
Control Panel
Upper case unit
MA Board
Lamp Assy.
Optical Engine
Speaker
TH Board
IF unit
Lamp lid detection switch
Safety Switch
Exhaust Fan
Power Supply Fan
Power Supply Unit
Intake Fan 1
Intake Fan 2
Figure 1-5. Major Internal Components
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1.2.3 Remote Control
[E-Zoom] button(
(
(
)(
)
) Enlarges parts of images without changing
the size of the projection area.
) Reduces the part of images that have been
enlarged using the (
) button.
Remote control light-emitting area
Outputs remote control signals.
[Power] button
Turns the projector power on and off.
[Page down][Page up] buttons
When using the remote control as a wireless
mouse, press these buttons to scroll back and
forth through pages in a PowerPoint file.
[
] button
When a configuration menu or help menu
is displayed, the button selects menu items
and setting values.
When the wireless mouse function is activated, tilting this button moves the pointer
in the direction of tilt.
[Enter] button
Accepts a menu or help item or displays the
next screen or menu when viewing a configuration menu or help menu.
Acts as a mouse left-click when using the
wireless mouse function.
[Esc] button
Stops the current function.
Displays the previous screen or menu
while viewing a configuration menu.
Acts as a mouse right-click when using the
wireless mouse function.
[A/V Mute] button
The audio and video are turned on or off
each time the button is pressed.
[Freeze] button
Images are paused or unpaused each time
the button is pressed.
[Num] button
This is used when entering and changing
passwords.
[Menu] button
Displays and closes the configuration menu.
[Pointer] button
Press to indicate part of an image being projected as part of a presentation.
[Computer] button
[S-Video] button
[Video] button
Switches to images from the corresponding
port.
[Help] button
Each time this button is pressed, it displays
and hides the online help menu that can
assist you if you have a problem.
[Auto] button
Automatically adjusts and optimises analogue
RGB computer video signals.
[Volume] buttons
Adjusts the sound volume.
Numeric buttons
Use these buttons to enter a password when
using Password Protect.
[Search] button
The next input source is searched for automatically in the following order and the image input from the connected equipment is projected each time this button is pressed.
[Color Mode] button
Changes the colour mode. When you press the button, the
colour modes change in the following order.
Computer port
S-Video port
[Resize] button
When Component videog, Composite videog or S-Videog signals are being projected, the Aspect ratio changes each time
this button is pressed.
Video port
Figure 1-6. Remote Control
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EMP-S3
1.3 Specifications
Projection System
RGB Liquid Crystal Shutter Projection
Projection Method
Front/Rear/Ceiling Mount
LCD
Specifications of
main parts
Projection lens
Lamp
Size
0.5 inches with MLA
Driving Method
Poly-silicon TFT Active Matrix
Pixel Number
480000 dots (800 x 600) x 3
Native Resolution
SVGA
Aspect Ratio
4:3
Pixel Arrangement
Stripe
Type
Manual focus
F-number
1.4
Focal Length
16.6 mm
Zoom Ratio
1.0 to 1.35
Offset
9.6 : 1
Type
135 W UHE
Life
2000 h (High Brightness)
3000 h (Low Brightness)
Optical System
Dichroic Mirror Separation & Prism combine Method
30 to 300 inch (1.19 to 12.12 m) (Zoom: Tele)
30 to 300 inch (0.87 to 8.97 m) (Zoom: Wide)
Screen Size (Projected Distance)
High Brightness
1600 ANSI lumens
(Color Mode: Game, Zoom: Wide)
Low Brightness
1400 ANSI lumens
Color Mode: Game, Zoom: Wide)
Brightness
Contrast
500 : 1
Color Mode: Game, High Brightness)
Brightness Uniformity
85 % (Typ.)
Color Reproduction
Full-Color (16.77 million colors)
Sound Output
1W Monaural
Color Mode
PC
Photo, Presentation, Theatre, Game, sRGB, Black Board
Video
Sports, Presentation, Theatre, Game, sRGB, Black Board
Pixel Clock
Effective Scanning
Frequency Range Horizontal
(Analog)
Vertical
13.5 MHz to 162 MHz
15 MHz to 92 KHz
50 MHz to 85 Hz
Projector/Remote Control
Adjustment
Function
Tilt Angle
Keystone
Correction
Other Functions
SEIKO EPSON
Keystone/Brightness/Contrast/Tint/Saturation/Sound/
Input signal etc.
0 to 10degrees
PC
Component Video
Vertical: -30 to +30 degrees
Vertical: -20 to +20 degrees Assuming the aspect ratio is 16 : 9.
Freeze, E-Zoom, A/V Mute, Pointer, User's Logo, Resize,
Auto detection of RGB/YCbCr, Operation Lock, Password
Protected (Security function), Direct ON
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EMP-S3
Display
Performance
Input Signal
Native
800 x 600 dots
Signal Type
Separate signal
Video Signal
Analog (0.7 V p-p, 75 Ω/ Mac 0.714 Vp-p, 75 Ω)
Sync. Signal
Separate (positive & negative, bi-polarity 2-5 Vpp)
Composite (positive & negative, bi-polarity 2-5 Vpp)
Sync-on-green (negative, 0.3 Vpp)
Audio Signal
500 mVrms/47 KΩ
Analog RGB I/O
Input Terminal
Output Signal
Video
Mini D-sub 15 pin x 1 (Blue)
Audio
RCA x 2 (Whie/Red)
Signal Type
Not analog-RGB standard level
Video Output Terminal
Mini D-sub 15 pin x 1 (Black)
Display Performance
NTSC: 550 lines, PAL: 550 lines
Depending on observation of the multi-burst pattern)
Input Signal
Video Standard
NTSC/NTSC4.43/PAL/M-PAL/N-PAL/PAL60/SECAM
Video Signal
Composite Video (1.0 Vpp/Sync.negative 75 Ω)
S-Video (Luminous 0.714 Vpp, Chrominous 0.286 Vpp, 75 Ω)
Component Video (Analog Y level 0.7 V 75 Ω/CrCb level ±
0.35 V 75 Ω/Sync., negative 0.3 V or 3-state ± 0.3 V on Y)
Video-RGB (0.7 Vp-p, 75 Ω/Mac 0.714 Vpp, 75 Ω)
Audio Signal
Video I/O
500 mVrms/47 KΩ
Composite Video: RCA (Yellow) x 1
S-Video: Mini DIN
Input Terminal
Video
Component Video: Mini D-sub 15 pin (Blue)
(in common with Analog RGB connector)
Video-RGB: Mini D-sub 15 pin (Blue)
(in common with Analog RGB connector)
Control I/O
USB I/O
Audio
RCA x 2 (Whie/Red)
I/O Terminal
USB connector series B x 1
(for control of the mouse and keyboard)
Operating Temperature
5 °C to 35 °C [41 °F to 95 °F]
Cool-down period
A few seconds (Instant-Off )
Start-up period
About 5 seconds
Power Supply Voltage
Power
Consumption
Dimension
195 W
Stand-by
4.0 W
Exclude Projection lens & Feet
246 (D) x 327 (W) x 86 (H) mm
Maximum Dimension
246 (D) x 327 (W) x 98 (H) mm
Weight
Fan Noise
Accessories
Options
SEIKO EPSON
100-240 VAC ± 10%, 50/60 Hz
Lamp ON
Approximately 5.6 lb/2.5 Kg
High Brightness
36 dB
Low Brightness
28 dB
Power Cable
1.8 m
Computer Cable
1.8 m, Mini D-sub 15 pin - Mini D-sub 15 pin
Remote Control
attached
Battery
AAA battery x 2
Audio Adaptor
3.5 mm stereo mini-plug (male)- 2 RCA (female) 15 cm
Password Protect sticker
attached
Soft Carrying Case
attached (new type)
Lamp, Air filter, Soft carrying case (for a computer), Screen,
Image Presentation Camera, Ceiling mount kit
1-9
Revision:B
EMP-S3
1.4 Interface Specifications
Figure 1-7.
1.4.1 Computer Port
† Mini D-sub, 15 pin (input)
CN101
7513S-15G2-08
11
6
1
15
10
5
Pin No.
Signal Name
Pin No.
Signal Name
1
R
9
(No pin)
2
G
10
GND
3
B
11
GND
4
GND
12
SDA
5
GND
13
H Sync
6
GND
14
V Sync
7
GND
15
SCL
8
GND
Pin No.
Signal Name
Pin No.
Signal Name
1
OUT A
9
T.P
2
OUT B
10
GND
3
OUT C
11
T.P
4
T.P
12
T.P
5
GND
13
H Sync
6
GND
14
V Sync
7
GND
15
T.P
8
GND
† Mini D-sub, 15 pin (output)
CN102
7513S-15G2-08
11
6
1
SEIKO EPSON
15
10
5
1-10
Revision:B
EMP-S3
1.4.2 USB Interface
† USB-Type B
CN1600
UBB-4R-D14C
2
1
3
4
5
6
Pin No.
Signal Name
1
VBUS
2
D-
3
D+
4
GND
5
GND
6
GND
Pin No.
Signal Name
1
GND
2
GND
3
Y signal input
4
C signal input
5
DET
6
GND
GND
1.4.3 S-Video Interface
† Mini DIN4 pin
CN100
TCS7708-012021
4
3
2
1
6
5
GND
SEIKO EPSON
1-11
Revision:B
EMP-S3
1.4.4 Audio Input Interface/CVBS Input Interface
† Stereo mini pin jack
J100
YKC21-4098N
SEIKO EPSON
1-12
Pin No.
Signal Name
1
CVBS
2
GND
3
L
4
GND
5
R
6
GND
Revision:B
EMP-S3
1.5 External Views
/OO
Unit: mm
Figure 1-8. External Dimensions
SEIKO EPSON
1-13
Revision:B
EMP-S3
/OO
Unit: Inch
Figure 1-9. External Dimensions
SEIKO EPSON
1-14
Revision:B
Chapter 2 Theory of Operation
EMP-S3
2.1 Hardware Overview
The hardware for the EMP-S3 can basically be divided into two sections: the optical engine
and the circuit system. This section of the manual describes functions of the major hardware
components.
The components and unit in the dotted frame shown in the diagram below make up an optical
engine and MA Board Kit, which is provided as one part.
*1: The Intake Fan cools the R, G and B light
valves (LCD panels).
*2: The Exhaust Fan and the Lamp Fan mainly
exhaust heat from the Lamp Assy.
*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 port. Video signals or
S-Video signals are provided to the MA Board from the CVBS input or S-Video port. Analog signals are converted to digital signals at the MA board.
2. The digital display signals are temporarily stored in video memory on the MA board.
3. The R, G and B light valves control the amount of light that passes through the valves.
4. The light that passes through the light valves is combined by the prism and projected as an
image through the projection lens unit.
SEIKO EPSON
2-2
Revision:B
EMP-S3
2.1.1 Component Connection Diagram
The connectors for the components and Main (MA) board are shown in the following diagram.
Figure 2-2. MA Board Connectors
SEIKO EPSON
2-3
Revision:B
SEIKO EPSON
2-4
RCAR
RCAL
PC/VIDEO I/F
USB-B
Audio
Y/C
DIN4
CVBS
RCA
DSUB15
Sync
RGB
YUV
DDC
DSUB15
VIDEO
PC
Sync
RGB
YUV
DDC
Monitor Out
Buffer
IC1700
IR
KEY
MATRIX
V850/SA1-26
LED
PISCES2
IC105
A/D Converter
+
Chroma
Vol Control,Mute
1W
HUMAN I/F
IC100
DDC EEPROM
BideoAMP
IC180
EL8302
Buzzer
16Mbit
IC302
FLASH ROM
IC300
Main CPU
Frame Memory
Resizing
Frame Rate Conversion
Color Space Conversion
OSD
Image Processor
Newly added part
1Mbit
SRAM
AC
IC1100
GAUGE5
NRS
Power Supply
Circuit
AMP
POWER SUPPLY
FAN Driver
IC1002
IC1003
IC1005
BA00ASFP
Serial DAC
IC1001
Driver ASIC
PANEL DRIVER BLOCK
MONITOR OUT TEST
CONNECTOR
DD 5
LAMP Ballast
Thermister
DD5
DD5
EMP-S3
2.1.2 Control Circuitry
The control circuits are illustrated in the following block diagram.
Figure 2-3. Control Circuit Block Diagram
Revision:B
EMP-S3
2.2 Optical Engine
The optical system consists of four components: the Lamp Assys., the Light Guide Unit, the
Panel-on-Prism (POP) Unit, and the projection lens. These four components together are called
the Optical Engine.
Projection lens (focus)
Light Valve (B)
POP Unit
Light Valve (R)
Light Valve (G)
Light Guide Unit
Figure 2-4. Optical Engine
Optical Engine
Figure 2-5. Optical Engine Functional Diagram
SEIKO EPSON
2-5
Revision:B
EMP-S3
C H E C K
P O IN T
The Lamp Assy., Light Guide Unit, POP Unit, and Projection Lens together
make up the Optical Engine. These components are assembled and adjusted
together at the factory, and are not available as separate service parts.
C A U T IO N
„ Do not subject the optical system components to physical shocks or strong
vibration.
„ Do not disassemble the Light Guide Unit. Disassembly will cause color
distortion, even if reassembled very carefully.
„ The Optical Engine and MA Board are figured and adjusted together at the
factory. They are only available as a matched pair, and must always be
replaced together when either the Optical Engine or MA Board has a failure.
Table 2-1.
Component Name
Lamp Assy.
Light Guide Unit
POP Unit and Projection lens
SEIKO EPSON
Function/Other
An UHE-135W discharge lamp is the light source.
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 protects the LCDs from harmful ultraviolet
light. After this light is polarized, it is then split into 3 spectrums
(R, G and B).
The Panel-on-Prism (POP) Unit, which incorporates the Light
Valves, controls the intensity of the distributed components of the
RGB light. The prism unit then integrates the RGB light and
sends it through the projection lens.
2-6
Revision:B
EMP-S3
2.2.1 Lamp Assy.
The Lamp Assy. is comprised of the Lamp (UHE-135W) and Ballast Power Supply Connector.
The Ballast Power Supply Connector is used to supply the AC voltage from the ballast unit for
driving the lamp. The lead wires are connected to the lamp.
The lamp is fastened to the bottom of the projector body with 2 screws. The lamp is a consumable part, and is to be replaced as the luminance of the Lamp Assy. declines over time as the
lamp is used. Maximum luminance is obtained when a new lamp is first installed. After
approximately 1,900 hours at high brightness or 2,900 hours at low brightness, the luminance
will drop by approximately 50%.
Ballast Power Supply Connector
Figure 2-6.
The Lamp may be replaced at any time. Replace the Lamp Assy. before the full 1900-hour
period (at high brightness) or 2900-hour period (at low brightness) has been reached if it seems
that the luminance of the lamp is unacceptable during actual use.
The cumulative operating time for the Lamp Assy. is stored in IC300 (I/F Controller) on the
MA board. When the lamp is replaced, the lamp timer should be reset using the Reset Lamp
Timer function in the Reset menu. Check the Lamp Time in the About menu to confirm that
the timer has been correctly reset.
Figure 2-7. Lamp Assy. Control Circuit
SEIKO EPSON
2-7
Revision:B
EMP-S3
2.3 MA Board
The MA board processes the core circuit controls for the projector, including interface control,
operation panel control, temperature sensor circuit and fan control, ballast power supply control and the Infrared RC board interface.
The MA board also contains an imaging processor (PW465), EEPROM, digitizers (ADC and
video decoder), and SRAM memory.
2.3.1 External View of MA Board
Figure 2-8. MA Board Top
Figure 2-9. MA Board Bottom
* The MA Board and the Optical Engine must always be replaced together.
SEIKO EPSON
2-8
Revision:B
EMP-S3
2.3.2 Overview of Operation
Digitalization control of the picture signal
Converts the analog RGB image signals input from Computer/Component Video port from
analog to digital form.
Frequency transformation control
Transforms the picture signal into the appropriate signals to drive the R, G and B LCD panels.
On screen display
Displays the menu and other information overlaid onto the input picture signal.
Remote control
Receives and decodes IR signals from the remote control and supplies control signals to various MA board circuits.
Mouse control
Converts pointer information contained within the remote control signals into mouse signals in
PS/2 and USB serial format to send them to the computer.
Lamp control
Controls the ballast and lamp illumination.
LED control
Controls the display characteristics of the LEDs that indicate the power, temperature and operational status of the projector.
Cooling control
Measures temperature and controls the speed of the fan.
Power supply control
Controls low-power consumption, sleep and stand-by modes.
SEIKO EPSON
2-9
Revision:B
EMP-S3
2.4 Interface Connectors
The MA board includes interface connectors for external devices such as video equipment.
The MA board is equipped with the following connectors.
Computer port
USB port
S-Video port
Remote control
light-receiving area
Monitor Out port
Video port
Audio input
Figure 2-10. IF Board External Connectors
Computer/
Component Video (Output)
CN102
Computer/
Component Video (Intput)
CN101
S-Video
CN100
USB TypeB
Audio input/CVBS input
IC105
PW2200
A/D Converter
+
Chroma
CN1600
IC501
J100
IC1700
IC300
PW164B
Image Processor
IC1701
Speaker
Figure 2-11. MA Board Block Diagram
SEIKO EPSON
2-10
Revision:B
EMP-S3
2.5 Power Supply Ballast Unit
The Power Supply Ballast Unit contains the power supply/ballast section, power supply filter
and the AC cord socket. The power supply/ballast section re-regulates the DC power supply
that comes from the AC inlet and power supply filter in order to generate the AC power supply
135W for the UHE lamps.
AC Inlet
Figure 2-12. Power Supply Ballast Unit
2.5.1 Power Supply Circuit Block Diagram
AC Input
AC100-240V
EMI Filter
EMI Filter
Ballast output
195W
The First Power Supply
Smoothing/Control circuits
DC output
to CN2000
on MA board
Secondary Power Supply
Figure 2-13. Power Supply Circuit Block Diagram
Fuse:
EMI filter circuit:
SEIKO EPSON
Protects the power supply and internal circuitry from overcurrent on
the AC supply line.
Eliminates interference from the AC power supply input.
2-11
Revision:B
EMP-S3
2.5.2 Overview of Operation
The output cable of the power supply unit is connected to CN2000 on the MA board. It allows
the following voltages and signals to be transmitted.
• DC output
• The power supply On/Off signal (PWON)
C A U T IO N
„ Background power is still supplied to the MA board through CN2000
connector as long as the power cord is connected to the projector, even if the
[Power] switch is turned off.
„ The EMI filter/regulator circuit eliminates interference (noise) from the AC
line and generates the DC voltage for the regulators.
„ The DC voltages shown in the tables below are generated by a Switching
Regulator. No fluctuations in output potential occur as a result of load
fluctuations, and the individual output voltages cannot be adjusted.
Table 2-2.
Output voltage
Signal
name
Output
voltage
Voltage accuracy
Ripple
(mVpp)
Ripple/
Spike
(mVpp)
Output current
Standby
mode
+5 V
±5 %
100
200
+7
+7.2 V
+0.8 V/-0.4 V
100
200
0A
+13
+13.8
+15 V ~
+13.5 V
200
300
400
25 Vpp
+16 V ~
+23 V
Ballast 380 VDC 360-400
Output
VDC
+1.8
Typ
20 mA to
220 mA 20 mA 3.5 A
+5
+18
Min
Protection circuit Load capacOverOver- ity (Refervoltage current ence) (ÉþF)
-
Shutoff
100
0.5 A
-
Shutoff
200
0A
0.2 A 1.5 A
-
Shutoff
100+470
400
0A
0.2 A 0.45 A
-
Shutoff
47
25 Vpp
(0.1)
(0.1) 195 W 410 V
0A
Shutoff
The power supply fan reduces the internal heat in the power supply unit. The heated air discharged from the power supply unit is then exhausted with the exhaust fan connected to
CN1004 on the MA board.
SEIKO EPSON
2-12
Revision:B
EMP-S3
2.5.3 Connector CN2000 Pin Layout
1
12
13
24
Figure 2-14.
Power Supply Connector (connected to CN2000 on the MA board) Pinout Definition
SEIKO EPSON
Pin No.
Signal name
Pin No.
Signal name
1
2
3
4
5
6
7
8
9
10
PFCON
+5 V_T
GND
+5 V_T
+5 V_T
+7 V
GND
+12 V
GND
+18 V
13
14
15
16
17
18
19
20
21
22
11
GND
23
12
NC
24
GND
+5 V_T
GND
+5 V_T
+5 V_T
+7 V
GND
+12 V
GND
+18 V
FANCON1
(reserved)
FANCON2
(reserved)
2-13
Revision:B
EMP-S3
2.6 RC Board Assembly
The Remote Control (RC) board is equipped with sensors that detect (receive) infrared signals
transmitted from the remote control. The two RC IR sensors are mounted on the front and rear
of the projector.
Rear IR Receiver Sensor
Front IR Receiver Sensor
RC Board
Figure 2-15. RC Receiver Sensor
The output signals (serial data) received by the sensors are sent to IC501 (PISCES2) on the
MA board. The MA board uses the serial data received from the remote control button
switches to control the power ON/OFF status, menu start, and control the display (temporary
stop, blank, etc.).
The remote control function is illustrated in Figure 2-16.
Figure 2-16. Remote Control Circuit Block Diagram
SEIKO EPSON
2-14
Revision:B
EMP-S3
2.7 Speaker
The projector has a single 1 W built-in speaker that is at the rear of the projector.
It can be used for monaural output of the sound that is input to the projector from a host computer or video source.
The signal from the computer or video source is amplified by the audio control circuits on the
AV board and then output to the built-in speaker through connector CN1701.
Speaker
Figure 2-17. Speaker
The following diagram illustrates the circuits that control the speaker.
Audio input port
J100
IC1700
Audio Amp
CN1701
Speaker
Volum up/down
Mute
IC501
Figure 2-18. Speaker Control Circuit Block Diagram
SEIKO EPSON
2-15
Revision:B
EMP-S3
2.8 Temperature Control
2.8.1 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 2-3.
Sensor/Switch
Location
Lamp lid detection switch On the Exhaust Duct Inner
TH board
On the Exhaust Duct Inner
Safety Switch
On the side of the Exhaust
Duct Inner
Function
Interrupts AC power when the
lamp lid is opened. Power cannot
be turned on until the lid is closed.
Prevents overheating around the
Lamp Assy. Turns the lamp off
when a temperature rises above a
certain level.
Prevents overheating around the
Lamp Assy. Interrupts the AC
power when a temperature rises
above a certain level.
Lamp Lid Detection Switch
This switch is located on the Inner Exhaust Duct and connected to the lamp lid latch on the
inside base of the projector, and prevents current from going to the lamp if the lamp lid is open.
This lid is opened only when the operator is replacing the Lamp Assy. The switch is provided
in order to prevent the danger of burns that could occur if the lamp turned on accidentally.
The lamp lid detection switch is connected to CN900 on the MA board. When the lamp lid
opens, IC501 (IFCPU) detects the lamp lid open signal and sends the Lamp OFF signal to turn
off the lamp.
Lamp Lid Detection Switch
Figure 2-19. Lamp Lid Detection Switch
SEIKO EPSON
2-16
Revision:B
EMP-S3
TH Board
The TH Board is attached to the Inner Exhaust Duct to detect the temperature of the lamp section. To prevent damage to the surrounding components from overheating, the power save controller on the MA board first provides a warning indication through the temperature indicator
LED, and stops the output of the ballast when the temperature rises above a given level.
TH Board
Figure 2-20. TH Board
Safety Switch
This is a backup overheating prevention switch mounted on the side of the Inner Exhaust Duct.
If overheating occurs around the Lamp Assy. due to problems with the exhaust fan, the lamp is
normally turned off by the TH Board to prevent overheating. The Safety Switch is provided as
a backup in case the TH Board and temperature detection circuit fail simultaneously. When the
temperature rises above a given level, the safety switch interrupts AC power to stop all regular
operations. Once the safety switch is activated, power cannot be switched on again until the
temperature falls below the given level.
Safety Switch
Figure 2-21. Safety Switch
SEIKO EPSON
2-17
Revision:B
EMP-S3
Thermistor and Temperature Sensor Operation
Analog/Digital converters in IC702 and IC703 (V850) on the MA board detect the temperatures of the Optical Engine and Power Supply sections by means of the two Lamp Thermistors
at intervals of 1 second. Based on the measurement results, the CPU controls fan operations
and power supply shutdown operations as necessary.
Table 2-4. Temperature Sensors
Condition
Warning Indicator
Meaning
Normal temperature
Off
Warning temperature
Flashes orange
Abnormal temperature
Steady red
Internal error
Flashes red
Normal operation in progress
If temperature rises any higher, projection
stops.
Overheating (no projection)
Problem with fans, thermistors or temperature detection circuit
See Section 2.8.2 for more information on fan operation, and Section 2.9 for more information
on the LED status indicators.
2.8.2 Fan Operation
There are four cooling fans inside the projector. These fans discharge heated air produced by
the Lamp Assy., power supply unit, and ballast unit.
Intake fan 1
Intake fan 2
Power Supply Fan
Exhaust Fan
Figure 2-22. Fan Locations
SEIKO EPSON
2-18
Revision:B
EMP-S3
PW164B
IC300
M62334
IC1001
I2C bus
AO1
AO2
AO3
AO4
Intake Fan 1
PW bus
FANDET0
PISCES2
IC501
FVALV
FANON1
Intake Fan 2
FANDET1
V850
IC702, 703
V850 bus
Exhaust Fan
FVAEXT
FANON2
FANDET2
P32
P33
P35
P36
P37
Power
Supply Fan
BGPA0
BGPB6
BGPB7
BGPB4
FVAPWR
FANON3
FANDET3
BGPD1
BGPD0
FANCTL2
FANCTL1
Figure 2-23. Fan Control Circuit Block
SEIKO EPSON
2-19
Revision:B
EMP-S3
Operation Control
The MA board is connected to the Lamp Thermistor. The driver CPU controls the operation of
the four fans, Intake fan 1, Intake fan 2, Exhaust fan and Power Supply fan, based on the temperatures detected by the thermistor.
The signals output by IC1100, the driver CPU on the MA board, are used to change the output
from the fan drive regulator circuit on the MA board in order to control Intake and Exhaust
fans. The feedback signals from the fans are used by the CPU to monitor the fan operation
(stopped or running) for any abnormalities. If the feedback signal indicates a condition that the
CPU does not expect, the CPU determines 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.
Fan Operation
† Standby Mode
Intake Fan (LV/G FAN):
Intake Fan (LV/R FAN):
Exhaust Fan:
Operates at a constant speed from power-on.
The rotating speed is adjusted according to preset
temperatures detected by the thermistor.
Turns on the power supply fan and starts to operate at low
speed when the thermistor detects temperatures higher than
a given level, and stops when the temperature becomes
lower than the level.
† When the Lamp is ON
The intake and exhaust fans start to operate at low speed 0.5 seconds before turning the lamp
on. After the lamp turns on, the fan operates at high speed or low speed based on the temperatures detected by the thermistor.
† During Cool-down
When the lamp is turned off, the fans operate for a few seconds to cool the projector.
SEIKO EPSON
2-20
Revision:B
EMP-S3
2.9 LED Indicators
The MA board has three LEDs that indicate the operating status of the projector.
The status indicators are located on the upper case unit.
Temp indicator
Lamp indicator
Power indicator
Figure 2-24. Status Indicator LEDs Location
The following tables show what the indicators mean and how to remedy any problem indicated.
† Power indicator lights red: Abnormal
On
Blink
Off
Indicator Status
Power
Red
Red
Red
Power
Red
Red
Power
Red
Red
SEIKO EPSON
Projector Status
Internal error
Problem and Remedy
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" section of the Safety Instructions/
World-Wide Warranty Terms booklet.
Fan related error Stop using the projector, disconnect the power cable
Sensor error
from the electrical outlet, and contact your dealer or the
nearest address provided in the "International Warranty
Conditions" section of the Safety Instructions/WorldWide Warranty Terms booklet.
Internal temper- The lamp will turn off automatically and projection will
ature error
stop. Wait for about 5 minutes. After about 5 minutes
(overheating)
the projector will switch to standby mode, so check the
following two points.
• Check that the air filter and air exhaust vent are
clear, and that the projector is not positioned against
a wall.
• If the air filters are blocked, clean or replace them.
If this does not solve the problem and the projector
continues to overheat or the indicators continue to
show a problem when the power is turned on, stop
using the projector, disconnect the power cable
from the wall outlet, and contact your dealer or the
nearest address provided in the "International Warranty Conditions" section of the Safety Instructions/World-Wide Warranty Terms booklet.
After checking, press the [Power] button to turn the
power back on.
2-21
Revision:B
EMP-S3
Indicator Status
Power
Red
Red
Projector Status
Problem and Remedy
Take out the lamp and check if it is broken.
If the lamp is not broken, put it back in and then turn
the power on. If the lamp still does not turn on, replace
it with a new lamp.
If this does not solve the problem, stop using the projector and disconnect the power cable from the electrical outlet. Then contact your dealer or the nearest
address provided in the "International Warranty CondiLamp timer fail- tions" section of the Safety Instructions/World-Wide
ure Lamp out
Warranty Terms booklet
If the lamp is broken replace it with a new lamp, or
contact your local dealer for further advice to. If
replacing the lamp yourself, be careful to avoid pieces
of broken glass. (Projection cannot be carried out until
the lamp is replaced.)
Check that the lamp and the lamp cover are securely
installed. If the lamp or lamp cover is not securely
installed, the lamp will not switch on.
† Lamp or Temp indicator flashes orange: Warning
On
Indicator Status
Power
Red
Projector Status
High-speed
cooling in
progress
Orange
Power
Orange
SEIKO EPSON
Lamp replacement notification
Blink
Off
Problem and Remedy
This is not an abnormality, but if the temperature rises
too high again, projection will stop automatically.
• Check that the air filters and air exhaust vent are
clear and that they are not up against a surface such
as a wall.
• If the air filters are clogged, clean or replace them.
Replace the lamp with a new one.
If you continue to use the lamp after it has passed the
replacement period, the possibility that the lamp may
break will increase. Replace the lamp with a new one
as soon as possible. The Power indicator status will
vary depending on the projector status at the time.
2-22
Revision:B
Chapter 3 Troubleshooting
EMP-S3
3.1 Before Carrying Out Troubleshooting
• If repairs involving the replacement of parts 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.
• All instructions and procedures listed in troubleshooting flowcharts should be carried out as
given.
• Follow the procedures given in Chapter 4 Disassembly and Assembly when replacing any
of the projector components.
• When checking the operation of the projector, always check that the connectors are connected securely before proceeding to other checks.
• In order to confirm proper operation, use AC power from a normal source and use 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
Quantity
Application/Other
Projection screen
1
Projecting images
Tape measure (3 m)
1
Measuring projection distances
Host computer
1
Transmitting audio and image data
USB mouse
1
Checking the operation of the mouse
Video equipment
1
Transmitting audio and image data
Multi meter
Double-sided tape
General tools
Measuring resistance values and voltages (AC/DC)
1
Short length Attaching parts
1 set
Tools and equipment listed in Section 4.1.2
3.1.2 Field Replacement Parts
Many of the components that comprise a service unit have each been adjusted in relation to
each other. Therefore, when replacing parts during troubleshooting or repair, do not disassemble service units in order to harvest and use constituent components. This is especially critical
for the components in the optical engine (Light Guide Unit, Prism Unit and Light Valves) and
the MA Board.
Carry out the safety tests after parts replacement is completed.
SEIKO EPSON
3-2
Revision:B
EMP-S3
3.2 Overview
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
• Check for any external abnormalities, such as a damaged case.
Internal Cable Check
• Remove the Upper Case unit and check the cable connectors on the MA Board.
Reconnect any loose cables as required.
Power Supply On/Off
• 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.
Image Display and Quality
• Carry out the following three steps.
1). Check and adjust the projector's Front Feet as appropriate for the projection position and distance.
2). Adjust the image using the Focus Ring.
3). Press the [Auto] button to optimize the display.
• Display input/output and image quality. Use the [Source] and [Enter] buttons to
change input.
Check the quality of input and output signals from Computer/Component Video, SVideo and CVBS sources.
Audio Output
• Check that there are audio inputs from Computer/Component Video, S-Video and
CVBS. Also check the operation of the [AV Mute] button.
Control Panel
• Test the operation of each button on the control panel.
Remote Control
USB Mouse
Other
SEIKO EPSON
• Test the operation of each button on the remote control.
• USB mouse operations using USB interface.
• Examine the unit for abnormal noise, image problems, unusual odors, and smoke.
3-3
Revision:B
EMP-S3
3.2.1 Exterior Check
START
Upper Case Unit
Control Panel
Projection Lens Unit
Lower Case
Air Filter
Lamp Lid Unit
Lamp Assy
Adjustable Front Foot Unit
Interface Connectors
AC Inlet
• There should be no damage, deformation or cracking due to external force.
• The Lower Case should be installed correctly.
• The remote signal receiver should be clean and free from foreign materials.
• The Upper Case should be correctly installed.
• No buttons should be stuck down.
• The Focus Ring should turn smoothly.
• The Lens should be clean and free from damage.
• There should be no damage, deformation or cracking due to external forces.
• The vent hole should be clean and free from any foreign materials.
• The Air Filter should be installed correctly.
• Remove the Air Filter from the Lower Case to check that it is clean
• The Intake Fan inside the Air Filter frame should be clean and free from foreign
materials.
• The Lamp Lid should be securely attached to the Lower Case.
• The Lamp Lid Detection Switch latch should be free from damage.
• The plastic frame should be free from any deformation, damage or discoloration
from heat. Remove the lamp inner unit to check.
• The power supply connector should be free from discoloration.
• The white glass surface of the lamp should be clean.
• Can the projection height be adjusted with the Foot Unit?
• The connectors and terminals should not be bent or discolored.
• The connectors and terminals should be free from foreign materials.
• The AC connectors should not be discolored.
• The AC source socket should be free from damage.
Air Filter/Lamp Assy
Installation
SEIKO EPSON
3-4
Revision:B
EMP-S3
3.2.2 Internal Cable Check
Turn off the power and disconnect the power cable before you begin the following connector
checks. See Figure 2-2 on page 2-3 for the location of the MA Board connectors.
START
Upper Case Unit
Removal
Control Panel
• MA Board CN903 (Lock-type connector)
Exhaust Fan
• MA Board CN1004
LAMP Themistor
• MA Board CN1001
RC Board
• MA Board CN620
Intake Fan 1, 2
Light Valve R/G/B
L/V Thermistor
Power Supply Ballast Unit
• MA Board CN1002, CN1003
• MA Board CN1300/CN1400/CN1500 (Lock-type connector)
• MA Board CN1000
• MA Board CN2000, CN901
Power Supply Fan
• MA Board CN1005
Lamp Lid Detection
Switch
• MA Board CN900
Lamp Fan
• MA Board CN1006
MA Board Removal
Speaker
• MA Board CN1701
MA Board Installation
Upper Case Unit
Installation
SEIKO EPSON
3-5
Revision:B
EMP-S3
3.2.3 Power Supply On/Off
START
Power cord connection
Is the
orange?
indicator lit
No
Replace the Power Supply
Ballast Unit
Yes
No
Press the [Power] button on
the control panel. Does the
indicator flash green?
Press the [Power] button
on the remote control.
Yes
Does the
indicator
flash green?
No
Replace tha Optical Engine
and the MA Board.
Yes
Reconnect or replace the
control panel.
To START
To START
Does the
indicator
flash green?
No
Refer to "2.9 LED Indicators" on page 2-21.
Yes
A
(To next page)
SEIKO EPSON
3-6
Revision:B
EMP-S3
(Continued from previous
page)
A
No
Replace the Optical Engine
and MA Board.
Is the lamp turned on?
Yes
Press the [Power] button
to turn the power off.
Does the
indicator
flash orange?
No
Replace the Optical Engine
and MA Board.
Yes
Does the
indicator
light orange after it flashes
for approx. 2 seconds?
No
Replace the Optical Engine
and MA Board.
Yes
Image Display and Quality
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. To determine this, check factors
such as output voltage, internal temperature, appearance of components, odors and smoke.
2. If the cause is judged to be an internal problem, replace the power supply unit. If the newlyreplaced 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. Eliminate the external factor
that is causing the problem.
3. If the power supply unit is recoverable but is not working properly, for example if high temperatures are causing the thermostat to shut down the power supply, or if the overcurrent
protection circuit has tripped, then there is no need to replace the power supply unit.
4. If the power supply unit is not recoverable and is not working properly, for example if an
overcurrent has repeatedly blown the fuse, replace the power supply unit.
SEIKO EPSON
3-7
Revision:B
EMP-S3
3.2.4 Image Display and Quality
C A U T IO N
„ The image quality can also be affected by condensation or 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 the power on.
No
Yes
Does an image appear on
the screen?
Yes
1. Adjust the height using
the front adjustable foot.
2. Press the [
] or [
]
button to correct distortion.
3. Adjust the focus with
the Focus Ring.
No
Yes
Is the lamp turned on?
Yes
Replace the Optical
Engine and MA Board
No
Does the image appear
clearer?
No
Replace the Lamp Assy.
Clean the Projection Lens.
Yes
Is the lamp turned on?
No
Yes
Does the image appear
clearer?
Replace the Optical
Engine and MA Board
No
Clean the areas around
the Light Valves.
Yes
Does the image appear
clearer?
No
Replace the Optical
Engine and MA Board
B
(To next page)
SEIKO EPSON
3-8
Revision:B
EMP-S3
(Continued from previous page)
B
C
Connect the host computer
to the Computer connectors and display an image.
Yes
Is the image quality good?
Connect external devices
to all the interfaces.
No
Yes
No
Does an image appear on
the screen?
Yes
No
Press the [Source] button
to change the display to
Computer.
Does an image appear on
the screen?
1. Press the [Menu] button.
2. Select the "Image" menu.
3. Adjust the brightness
and contrast.
Connect a source to the
interface to be checked.
Yes
Is the image quality good?
C
No
Yes
Replace the Optical
Engine and MA Board
Audio Output
No
Replace the computer
cable.
Does an image appear
on the screen?
Yes
No
Replace the Optical
Engine and MA Board
SEIKO EPSON
3-9
Revision:B
EMP-S3
3.2.5 Audio Output
START
Can the volume be adjusted?
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.
Is sound output from the built-in
speaker?
No
Replace the Optical Engine and
MA Board
Yes
Can the audio output be started and
stopped using the [AV Mute] button?
No
Yes
No
Replace the Optical Engine and
MA Board
Reconnect CN1701 on the MA board
Is sound output from the built-in
speaker?
Yes
Yes
Control Panel
No
Replace the audio cable.
Is sound output from the built-in
speaker?
Yes
No
Replace the speaker unit.
Is sound output from the built-in
speaker?
Yes
No
Replace the Optical Engine and
MA Board
SEIKO EPSON
3-10
Revision:B
EMP-S3
3.2.6 Control Panel
START
Does pressing the [Power] button turn
the power on and off?
No
Yes
Does pressing the [Menu] button display
the menu?
No
Yes
Does pressing the [Source] button switch
the input source?
No
Yes
Does pressing the [Help] button show the
explanation display?
No
Yes
Does pressing the [Enter] button change
the menu item?
No
Yes
] buttons
No
Does pressing the [TELE] or [WIDE] buttons change the image size?
No
Does pressing the [
] or [
correct keystone distortion?
Yes
Yes
Reconnect CN903 on the
MA board
Yes
Do all switches function
normally?
No
Replace the control panel.
Yes
Do all switches function
normally?
No
Replace the Optical Engine
and MA Board
Remote Control Operation
SEIKO EPSON
3-11
Revision:B
EMP-S3
3.2.7 Remote Control Operation
START
Yes
Can the power be turned
on and off using the
remote control?
Yes
Does the remote control
work 20 ft. (6 m) away
from the front or rear of
the projector?
Do all buttons operate
normally?
No
No
Yes
No
Replace the remote
control.
Replace the
remote control battery.
Replace the remote
control battery.
Yes
Do all buttons operate
normally?
Can the power be turned
on and off using the
remote control?
Yes
No
No
Replace the Optical
Engine and MA Board
Replace the remote
control.
Can the power be turned
on and off using the
remote control?
Does the remote control
work 20 ft. (6 m) away
from the front or rear of
the projector?
Yes
No
Replace the remote
control.
Does the remote control
work 20 ft. (6 m) away
from the front or rear of
the projector?
Yes
No
Yes
No
Replace the Optical
Engine and MA Board
Replace the Optical
Engine and MA Board
Other
SEIKO EPSON
3-12
Revision:B
EMP-S3
3.2.8 Other
START
Yes
Is the projector making abnormal noise?
No
Yes
Is the projector overheating?
No
Yes
Are there any image
problems?
No
Yes
Is there any abnormal
odor or smoke?
SEIKO EPSON
• Check for any objects 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.).
• Malfunction of the Lamp Thermistor or Safety Switch.
• Malfunctioning or dirty Exhaust Fan, Intake Fan or Power Supply Fan. Clean or
replace as necessary.
• Dirty air filter.
• Malfunction of the Optical Engine.
• Malfunction of Optical Engine
• Malfunctioning or dirty Light Guide Unit (lenses, mirrors, etc.).
• Dirty Projection Lens.
• Malfunctioning or dirty Light Valve. Replace the Optical Engine and MA Board
• Charring of cables due to excessive heat. Replace any damaged cables and resolve
the overheating problem.
• Dust burning due to heat. Make sure the air filter is not damaged, and check for
excessive heat.
3-13
Revision:B
Chapter 4 Disassembly/Assembly
EMP-S3
4.1 Overview
This chapter describes the procedures for disassembling and assembling the main components
of the EMP-S3 projector. Unless otherwise specified, reassembly is the reverse of the disassembly procedure. Read the precautions described in the next section before starting.
4.1.1 Precautions
Some procedures require specific precautions that must be followed, and those will be noted
throughout this chapter. Note the following precaution definitions:
WARNING
W A R N IN G
Procedures which, if not strictly observed, could result in personal injury are
described under the heading WARNING
CAUTION
C A U T IO N
CAUTION signals a precaution which, if ignored, could result in damage to
equip-ment.
REASSEMBLY
If assembly needs special attention or the procedure is different from the reversed
disassembly procedure, the correct procedure is described under the heading
REASSEMBLY.
CHECK POINT
C H E C K
P O IN T
Important tips for procedures are described under the heading CHECK POINT.
The precautions in the two lists below, WARNING and CAUTION, must always be followed
during disassembly and assembly. Before starting the disassembly work on this product, read
and follow these precautions.
SEIKO EPSON
4-2
Revision:B
EMP-S3
W A R N IN G
„ No work should be performed on the unit by persons unfamiliar with basic
safety measures as dictated for all electronics technicians in their line of work.
„ Remove any metallic objects such as wristwatches, shirt cuff buttons, rings
and tie pins which may pose a danger of coming into contact with the
projector.
„ Always wear gloves when disassembling and reassembling the projector.
„ Disconnect the power cord from both the projector and the electrical outlet.
„ If you need to work on the projector with power applied, strictly follow the
instructions in this manual. When the power supply cable must be connected,
use extreme caution in working on the power supply and other electronic
components.
C A U T IO N
„ Repairs on Epson product should only be performed by an Epson certified
repair technician.
„ Turn off the power for both the projector and the host computer before
disconnecting or connecting them.
„ Once all power has been turned off, disconnect any interface cables that are
still connected.
„ Use a vacuum cleaner to clean the air filter, interface panel and outer case.
„ Use only recommended tools for disassembly, assembly or adjustment of the
projector.
„ Always verify that the product has been unplugged from the AC power source
before disconnecting, removing, or replacing any cables or printed circuit
boards.
„ Use static discharge equipment such as anti-static wrist straps when accessing
internal components to protect sensitive electronic components and circuitry.
„ Do not use second source ICs or other components not approved by Epson.
They could cause damage to the Epson product or could void the Epson
warranty.
SEIKO EPSON
4-3
Revision:B
EMP-S3
4.1.2 Tools and Equipment
The tools and equipment in the following table will be needed. All are commercially available,
and should be made ready beforehand.
Table 4-1. Tools Needed
Name
Application
Phillips screwdriver No. 0
Disassembling the Focus ring
Disassembling the outer case and inner
components
Disassembling the rear foot and the
front foot
Removing the front foot
Removing the computer interface
Cleaning away dust
Cleaning away dust
Cleaning the projection lens
Cleaning the light valves and fans
Protection against sharp edges
Antislip and static protection
Anti-static protection
Securing cables
Phillips screwdriver No. 2 (20 cm)
Flathead screwdriver
Flathead precision screwdriver
Hexagonal box screwdriver (5 mm)
Brush
Vacuum cleaner
Lens cleaner
Air blower
Gloves
Grounding strap
Heat-resistant tape
4.1.3 Projector-Specific Service Precautions
C H E C K
P O IN T
The Optical Engine and Main (MA) Board are paired together as a single service
part. Neither is available separately. For service that requires the replacement of
either the MA Board or the Optical Engine, both components must be replaced
together.
The component parts of the Optical Engine require mechanical installation
positions to be adjusted in relation to each other. In addition, the control circuit
also has its own unique characteristics, such as display signal output drivers, that
differ from projector to projector. 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. The various correction values are set at the time of
shipment from the factory and are stored in ROM on the MA Board.
„ Always replace the Optical Engine and MA Board together as a matched pair.
„ Do not disassemble the Optical Engine.
„ Do not replace the component parts of the Optical Engine with parts from
other Optical Engines.
SEIKO EPSON
4-4
Revision:B
EMP-S3
Points to Note When Working
Detailed points to note are given in each section, so be sure to read each section thoroughly
before beginning the disassembly procedure. 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. 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 isopropyl alcohol.
• Optical engine removal
• Lamp inner unit removal
• 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.
SEIKO EPSON
4-5
Revision:B
EMP-S3
4.2 Projector Disassembly and Assembly
The general disassembly procedure for the EMP-S3 projectors is illustrated below. Except
where indicated separately, all reassembly should be carried out by following the disassembly
procedures in reverse. Detailed disassembly procedures for each component are given in Sections 4.2.1 to 4.2.19,
links to which are given in the flowchart below.
Projector
LID ASSY., LAMP
(4.2.2)
MODEL NAME PLATE;
PowerLiteS3
(4.2.1)
Lamp inner unit
(4.2.2)
LENS CAP UNIT
(4.2.3)
CASE, UPPER; AE
(4.2.7)
FOOT UNIT, FRONT
(4.2.5)
FRAME, AIR FILTER
(4.2.6)
AIR FILTER; A
(4.2.6)
SHEET, SHADING, SW1
(4.2.8)
PRINTED CIRCUIT
BOARD ASSEMBLY; SW_R1
(4.2.8)
FOOT RUBBER
(4.2.4)
PRINTED CIRCUIT
BOARD ASSEMBLY; MA_R1
(4.2.9)
FILTER, RC
(4.2.8)
CUSHION, UPPER
(4.2.8)
Optical engine and MAB set
(4.2.12)
PRINTED CIRCUIT
BOARD ASSEMBLY; RC_R1
(4.2.15)
SET, CASE, IF
(4.2.10)
CABLE SW
(4.2.8)
FILTER, RC
(4.2.10)
CABLE RCR; FIF
(4.2.15)
CUSHION, PS
(4.2.8)
SHEET, CASEUPPER
(4.2.8)
SHEET, SHADING, SW2
(4.2.10)
PLATE, MA
(4.2.11)
BUTTON, SW
(4.2.8)
FOCUS, RING
(4.2.13)
DUCT, INTAKE
(4.2.15)
fan80
(4.2.16)
KNOB, PROJECTION LENS
(4.2.13)
FAN,INTAKE
(BG0703-B044)
(4.2.15)
DUCT, EXHAUST, OUTER
(4.2.16)
PROJECTION LENS
(4.2.14)
FOOT, REAR
(4.2.4)
FAN,INTAKE
(BG0703-B044-00L-E1)
(4.2.15)
PRINTED CIRCUIT
BOARD ASSEMBLY; TH_R1
(4.2.17)
Cable Assy RC; FIF
(4.2.17)
Lamp Cover Detection Switch
(4.2.17)
DUCT, EXHAUST, INNER
(4.2.17)
POWER SUPPLY ASSY.
(4.2.18)
SHIELD PLATE, LAMP
(4.2.19)
CASE, LOWER
(4.2.19)
C H E C K
P O IN T
Part names indicated in the above flow and used in this chapter are simplified
names. See the “Part Names given in the SPI” table on the next page to know
their corresponding official names.
Figure 4-1.
SEIKO EPSON
4-6
Revision:B
EMP-S3
The table below shows the part names used in this chapter and their official names given in the
After Service Part List in the SPI (Service Part Information).
Table 4-2. Part Names given in the SPI
Official Name used in SPI
Names used this Chapter
MODEL NAME PLATE; PowerLiteS3
Lamp inner unit
LID ASSY., LAMP
LENS CAP UNIT
FOOT, REAR
FOOT RUBBER
FOOT UNIT, FRONT
FRAME, AIR FILTER
AIR FILTER; A
CASE, UPPER; AE
FILTER, RC
SHEET, SHADING, SW1
CUSHION, UPPER
CUSHION, PS
PRINTED CIRCUIT BOARD ASSEMBLY; SW_R1
BUTTON, SW
CABLE SW
SHEET, CASEUPPER
PRINTED CIRCUIT BOARD ASSEMBLY; MA_R1
SET, CASE, IF
FILTER, RC
SHEET, SHADING, SW2
PLATE, MA
Optical engine and MAB set
FOCUS, RING
KNOB, PROJECTION LENS
PROJECTION LENS
PRINTED CIRCUIT BOARD ASSEMBLY; RC_R1
DUCT, INTAKE
FAN,INTAKE (BG0703-B044)
FAN,INTAKE (BG0703-B044-00L-E1)
CABLE RCR; FIF
fan80
DUCT, EXHAUST, OUTER
Cable Assy RC; FIF
DUCT, EXHAUST, INNER
PRINTED CIRCUIT BOARD ASSEMBLY; TH_R1
Lamp Cover Detection Switch
POWER SUPPLY ASSY.
CASE, LOWER
SHIELD PLATE, LAMP
EMP-S3 Model Name Plate
Lamp Assy.
Lamp Lid Assy
Lens Cap Unit
Rear Foot
Foot Rubber
Front Foot Unit
Air Filter Frame
Air Filter, A
Upper Case
RC Filter
SW1 Light Shade Sheet
Upper Cushion
PS Cushion
SW Board Assy.
SW Button
SW Cable
Upper Case Sheet
MA Board Assy.
IF Case Set
RC Filter
SW2 Light Shade Sheet
MA Plate
Optical Engine
Focus Ring
Projection Lens Knob
Projection Lens Unit
RC Board Assy.
Intake Duct
Intake Fan
Intake Fan
Cable RCR, FIF
Fan 80
Outer Exhaust Duct
Cable Assy RC, FIF
Inner Exhaust Duct
TH Board Assy.
Lamp Cover Detection Switch
Power Supply Assy.
Lower Case
Lamp Shield Plate
SEIKO EPSON
4-7
Revision:B
EMP-S3
4.2.1 Removing the Model Name Plate
Remove the EMP-S3 Model Name Plate.
4.2.2 Removing the Lamp Lid Assy and Lamp Assy.
1. Remove the screw that secures the Lamp Lid Assy., and remove the Lamp Lid Assy.
2. Remove the two screws that secure the Lamp Assy, and remove the Lamp Assy.
Lamp Assy.
Lamp Lid Assy
Figure 4-2.
SEIKO EPSON
4-8
Revision:B
EMP-S3
4.2.3 Removing the Lens Cap Unit
1. Remove the string that attaches the Lens Cap Unit to the projector body to take off the Lens
Cap Unit.
Lens Cap Unit
Figure 4-3.
4.2.4 Removing the Rear Foot/Foot Rubber
1. Extend the legs of the Rear Foot as far as they will go.
2. Pull and rotate the Rear Foot to remove the Rear Foot.
3. Press a screwdriver or similar tool into the small slot beside the Rear Foot and pry the Foot
Rubber out of the projector Lower Case Unit.
Foot Rubber
Rear Foot
Figure 4-4.
SEIKO EPSON
4-9
Revision:B
EMP-S3
4.2.5 Removing the Front Foot Unit
1. Press a screwdriver or similar tool into the small slot beside the Front Foot Unit, and take
out the Front Foot Unit.
Front Foot Unit
Figure 4-5.
4.2.6 Removing the Air Filter Frame and Air Filter, A
1. Slide the Air Filter Frame in the direction of the arrow with your fingers, and remove the
Air Filter Frame.
2. Remove the Air Filter, A from the Air Filter Frame.
Air Filter, A
Frame, Air Filter
Figure 4-6.
SEIKO EPSON
4-10
Revision:B
EMP-S3
4.2.7 Removing the Upper Case
1. Remove the 7 (C.B.P-TITE, 3x10, F/ZB-3C) screws that secure the Upper Case Unit.
Figure 4-7.
2. Carefully lift the front of the Upper Case taking care not to pull the one cable connected to
the Upper Case.
Upper Case
CN903
Figure 4-8.
SEIKO EPSON
4-11
Revision:B
EMP-S3
3. Unlock connector CN903 on the MA Board and then disconnect the Control Panel Cable.
Locked
CN903
Unlocked
Figure 4-9.
SEIKO EPSON
4-12
Revision:B
EMP-S3
4.2.8 Removing the RC Filter, Upper Cushion, PS Cushion,
SW1 Light Shade Sheet, SW Board Assy, SW Cable, and Upper Case Sheet
1. Detach the RC Filter from the Upper Case.
2. Detach the Upper Cushion from the Upper Case.
3. Remove the PS Cushion from the Upper Case.
4. Remove the SW1 Light Shade Sheet from the SW Board Assembly.
5. Remove the 4 (C.C.P-TITE, 3x6, F/ZN-3C) screws to remove the SW Board Assembly.
6. Unlock connector H179 and disconnect the SW Cable.
7. Remove the SW Button.
8. Remove the Upper Case Sheet from the Upper Case.
SHEET, SHADING, SW1
SW Cable
SW Board Assy.
RC Filter
SW Button
PS Cushion
Upper Cushion
Figure 4-10.
SEIKO EPSON
4-13
Revision:B
EMP-S3
C A U T IO N
„ When attaching the Upper Case Sheet to the Upper Case, follow the
instruction below.
1). Attach the two sheets to the positions indicated in the figure below with
their precut side facing downward.
Upper Case Sheet
Figure 4-11.
2). Fold the sheets along the edges of the Upper Case and attach them firmly
to the backside of the case so as not to form any clearance or wrinkles.
Upper Case Sheet
Figure 4-12.
SEIKO EPSON
4-14
Revision:B
EMP-S3
C A U T IO N
„ After connecting the SW Cable, aslant to fold and secure it with a piece of heat
resistant tape as shown in the figure. Make sure that the fold is kept 1 cm away
from the SW Board Assy.
PRINTED CIRCUIT BOARD
ASSEMBLY; SW_R1
1cm
Heat-Resistant Tape
cable sw
Figure 4-13.
SEIKO EPSON
4-15
Revision:B
EMP-S3
4.2.9 Removing the MA Board Assy.
1. Unlock the connectors of the Light Valve R/G/B connection cables.
Light Valve R
Locked
Light Valve B
Unlocked
Light Valve G
Figure 4-14.
2. Disconnect the Light Valve R/G/B connection cables and 9 cable connectors that are
connected to the MA Board.
CN1002 CN1003 CN620
CN901
CN2000
CN1004
CN900
CN1005
CN1001
Light valve connectors
Figure 4-15.
SEIKO EPSON
4-16
Revision:B
EMP-S3
3. Remove the (C.C., 3x6, F/ZN-3C) screw to remove the MA Board Assy.
MA Board Assy.
Figure 4-16.
C A U T IO N
„ When installing the MA Board Assy., pay attention to the followings.
1). As the cable of the Intake Fan 2 is long, press the cable into the clearance
between the Power Supply Fan Assembly and the Intake Fan 2.
Tuck down the cable of the RCR Cable, FIF downward so as not to
disturb the installation.
Intake Fan 2 Cable
RCR Cable, FIF
Figure 4-17.
SEIKO EPSON
4-17
Revision:B
EMP-S3
C A U T IO N
2). Route the Power Supply Fan Cable as shown in Figure 4-18, and press into
the cable under the MA Board as far as it will go.
Power Supply Fan Cable
Figure 4-18.
3). Route the cable of the Intake Fan 1 as shown in Figure 4-19.
Intake Fan 1 Cable
Figure 4-19.
SEIKO EPSON
4-18
Revision:B
EMP-S3
C A U T IO N
4). Route the power cord as shown in Figure 4-20, and secure the cable with a
heat-resistant tape. Gently squeeze the Power Supply Ballast Cable into the
Power Supply Unit.
Heat-Resistant Tape
Power Cord
Power Supply Ballast Cable
Figure 4-20.
SEIKO EPSON
4-19
Revision:B
EMP-S3
4.2.10 Removing the IF Case Set, RC Filter and SW2 Light Shade Sheet
1. Remove the SW2 Light Shade Sheet from the IF Case Set.
2. Remove the 2 (C.B.P-TITE, 3x10, F/ZB-3C) screws that secure the IF Case Set, disconnect
the Speaker Cable from connector CN1701 on the MA Board, and remove the IF Case Set
from the MA Board Assy.
3. Remove the Remote Control (RC) Filter from the IF Case Set.
Speaker Cable
MA Borad Assy.
RC Filter
SW2 Light
Shde Sheet
IF Case Set
CN1701
Figure 4-21.
SEIKO EPSON
4-20
Revision:B
EMP-S3
4.2.11 Removing the MA Plate
1. Remove the 2 (C.B.P-TITE, 3x10, F/ZB-3C) screws that secure the RCA connector, the
(C.B.P-TITE, 3x10, F/ZB-3C) screw that secures the USB connector, and the 4 (HSH 4-40)
screws that secure D-sub 15 Pin connectors.
2. Remove the 2 (C.C., 3x6, F/ZN-3C) screws that secure the MA Plate to the MA Board, and
remove the MA Plate from the MA Board Assembly.
MA Board Assy.
MA Plate
HSH 4-40 Screws
Figure 4-22.
SEIKO EPSON
4-21
Revision:B
EMP-S3
4.2.12 Removing the Optical Engine
1. Remove the 4 (C.B.P-TITE, 3x10, F/ZB-3C) screws that secure the Optical Engine, and
remove it.
Screw
Screw
Screw
Screw
Figure 4-23.
4.2.13 Removing the Focus Ring and Projection Lens Knob
1. Remove the 4 (C.P.TYPE1 B- TITE- A., 2x6, F/ZB- 3C) screws that secure the Ring, and
remove the Ring from the Projection Lens Unit.
2. Remove the Projection Lens Knob from the Ring.
Optical Engine
Projection Lens Knob
Focus Ring
Figure 4-24.
SEIKO EPSON
4-22
Revision:B
EMP-S3
4.2.14 Removing the Projection Lens Unit
1. Remove the 4 (C.P.(S-P1), 3x10, F/ZN-3C) screws that secure the Projection Lens Unit, and
remove the Projection Lens Unit from the Optical Engine.
2. Remove the (H.N.-3, F/ZN-3C) screw nut from the Optical Engine.
Optical Engine
Projection Lens Unit
Figure 4-25.
SEIKO EPSON
4-23
Revision:B
EMP-S3
4.2.15 Removing the RC Board Assy, Cable RCR, Safety Switch, Intake Duct,
Intake Fan (BG0703-B044), and Intake Fan (BG0703-B044-00L-E1)
1. Remove the RC Board Assy (Printed Circuit Board Assy, RC_S2), and disconnect the
Cable RCR, FIF from the RC Board Assembly.
2. Remove the (C.C.P-TITE, 3x8, F/ZN-3C) screw that secures the Safety Switch, and remove
the Safety Switch from the Inner Exhaust Duct.
3. Remove the 5 (C.B.P-TITE, 3x10, F/ZB-3C) screws that secure the Intake Duct to remove
it.
4. Remove the 4 (C.B.P-TITE, 3x35, F/ZN-3C) screws that secure the Intake Fans, and
remove the Intake Fans (BG0703-B044 and BG0703-B044-00L-E1).
Intake Fan
(BG0703-B044-00L-E1)
Intake Duct
Intake Fan
(BG0703-B044)
RC Board Assy.
Safety Switch
Cable RCR, FIF
Figure 4-26.
SEIKO EPSON
4-24
Revision:B
EMP-S3
C A U T IO N
„ Route the AC Inlet Cable as shown in the figure below, and secure the ferrite
core on the tab of the Lower Case.
Ferrite core
Figure 4-27.
SEIKO EPSON
4-25
Revision:B
EMP-S3
4.2.16 Removing the Exhaust Fan Assy, Fan 80, and Outer Exhaust Duct
1. Remove the (C.B.P-TITE, 3x10, F/ZB-3C) screw that secures the Exhaust Fan Assy and
remove it.
Exhaust Fan Assy
Figure 4-28.
C A U T IO N
„ When installing the cable of both the Lamp Lid Detection Switch and the
Exhaust Fan, route them as shown in Figure 4-29.
Lamp Lid Detection Switch Cable
Exhaust Fan Cable
Figure 4-29.
SEIKO EPSON
4-26
Revision:B
EMP-S3
C A U T IO N
„ When installing the Ballast Cable, route the cable and move the ferrite core
into the position as shown in Figure 4-30.
Ballast Cable
Ferrite Core
Figure 4-30.
2. Remove the 2 (C.B.P-TITE, 3x30, F/ZN-3C) screws that secure Fan 80, and remove the
Outer Exhaust Duct from the Exhaust Fan Assy.
Outer Exhaust Duct
Fan 80
Figure 4-31.
SEIKO EPSON
4-27
Revision:B
EMP-S3
4.2.17 Removing the TH Board Assy, Cable Assy RC,
Lamp Cover Detection Switch, and Inner Exhaust Duct
1. Remove the (C.C.P-TITE, 2x12, F/ZN-3C) screw that secure the Lamp Cover Detection
Switch, and remove the Lamp Cover Detection Switch from the Inner Exhaust Duct.
2. Remove the (C.C.P-TITE, 3x8, F/ZN-3C) screw that secures the TH Board Assy (Printed
Circuit Board Assy, TH_S2), and remove the TH Board Assy from the Inner Exhaust Duct.
3. Remove the Cable Assy RC, FIF from the TH Board Assy.
4. Remove the (C.C.P-TITE, 3x8, F/ZN-3C) screw that secures the Lamp Connector, and
remove the Lamp Connector from the Inner Exhaust Duct.
5. Remove the 2 (C.B.P-TITE, 3x10, F/ZB-3C) screws to remove the Inner Exhaust Duct.
Cable Assy RC; FIF
TH Board Assy.
Lamp Connector
Lamp Cover
Detection Switch
Inner Exhaust Duct
Figure 4-32.
SEIKO EPSON
4-28
Revision:B
EMP-S3
4.2.18 Removing the Power Supply Assy.
1. Remove the heat-resistant tape that secures the Power Supply Cable.
2. Remove the 1 screws that secure the Plate Power Supply Cable, and remove the Plate Power
Supply Cable.
3. Remove the Ballast Shield Plate.
4. Remove the 4 (C.B.P-TITE, 3x10, F/ZB-3C) screws that secure the Power Supply Assy.
and remove the Power Supply Assy.. Extra caution is required as one of the screws is
located underneath the Insulation Plate Ballast.
Ballast Shield Plate
Plate Power Supply Cable
Isulation
Plate Ballast
Power Supply Unit
Figure 4-33.
SEIKO EPSON
4-29
Revision:B
EMP-S3
4.2.19 Removing the Lamp Shield Plate and Lower Case
1. Remove the Lamp Shield Plate from the Lower Case.
Lamp Shield Plate
Lower Case
Figure 4-34.
SEIKO EPSON
4-30
Revision:B
Chapter 5 Appendix
EMP-S3
C A U T IO N
The contents of this chapter are for use only by Epson Authorized Servicers, and
are not to be disclosed to others without the express written consent of Epson.
5.1 AS (After Service) Menu
The AS (After Service) menu provides information and settings that are not displayed on the
standard menu.
5.1.1 How To Display the AS (After Service) Menu
Press the Menu button on either the remote control or the projector's control panel for at least 5
seconds. Within 4 seconds after pressing the Menu key, hit these buttons in order shown below
to display AS menu.
Esc → Esc → Tele → Wide
„ When the video source is Computer, RGB-Video, YCbCr, YPbPr, the following screen
appears.
XXXXXXXXXXXXXX
Input Signal
Frequency
Sync Mode
Detected Comp Mode
Total Operation Time
Lamp Operation Time
Lamp Op. Time (H/L)
Lamp Replacement
Lamp ON
Cool Down Complete
Fatal Error
:
:
:
:
:
:
:
:
:
:
:
:
:
:
Engine Type
: XXXXXXXX
Sync Polarity
XXXXXXXXXXXXXXXXXX
H ---.---KHz
V ---.---Hz
H --------V ---------------------XXXXXXXXXXXXXX
65535H
65535H
65535H/65535H
65535Times
65535Times
65535Times
T99 L99 I99
The last four digits show the PW
firmware version.
The last four digits show the Easy
MP firmware version.
The last four digits show the Y43
firmware version.
P 0Z00023041XV111
O --------------------J 0Z1XV100
SEIKO EPSON
• Fatal Error: Abnormal termination
counter
Displays the number of times of each
of the following abnormal terminations.
T: Temperature problem
L: Lamp problem
I: Internal problem
(Same as for S-Video and Video)
5-2
Revision:B
EMP-S3
„ When the video source is S-Video or Video, the following screen is displayed.
XXXXXXXXXXXXXX
Video Signal
Total Operation Time
Lamp Operation Time
Lamp Op. Time (H/L)
Lamp Replacement
Lamp ON
Cool Down Complete
Fatal Error
:
:
:
:
:
:
:
:
:
----------------------------------65535H
65535H
65535H/65535H
65535Times
65535Times
65535Times
T99 L99 I99
Engine Type
: XXXXXXXX
The last four digits show the PW
firmware version.
The last four digits show the Easy
MP firmware version.
The last four digits show the Y43
firmware version.
P 0Z00023041XV111
O 0Z3030WWV100
J 0Z1XV100
5.1.2 Initializing (Resetting) the AS Menu Values
There are three levels of initialization that can be used to reset the projector usage history values stored in EEPROM.
1. Clearing the Basic Lamp Information
While the AS menu is being displayed, simultaneously press the [Source] and [ ] keys for
10 seconds.
2. Clearing All the Lamp Information
While the AS menu is being displayed, simultaneously press the [Source] and [
10 seconds.
Item
Clearing the Lamp Information
No Change
Reset to 0H
Lamp Operation Time
Reset to 0H
Reset to 0H
Lamp ON
Reset to 1
Reset to 1
Lamp Replacement
Add 1 to the
current value
Reset to 0
Cool Down Complete
Reset to 0
Reset to 0
Fatal Error (3 items)
No Change
Reset to 0
Number of Lights-out
(This item is not
displayed.)
Reset to 0
Reset to 0
5-3
keys for
Clearing All the Lamp
Information
Total Operation Time
SEIKO EPSON
]
Revision:B
EMP-S3
5.1.3 Software DIP Switches
Some software DIP-switch settings are only accessible from the AS menu. To display the DIPSW Setting Menu, do the following operation.
1. Press Menu button on the remote control for at least 5 seconds.
2. Within 4 seconds after releasing the Menu button, hit these buttons in order shown below.
Esc → Esc → Tele → Wide
The following sub-menu is displayed.
Switch On or Off, as necessary
DIP-SW
No
BIT
Function
Default
Setting
Setting Value
Note
SW1
0
(reserved)
-
-
-
1
Select USB key code
1
2
DSR ON/OFF
1
0: OFF, 1: ON
-
3
E-Zoom ON/OFF at
start-up
0
0: OFF, 1: ON
-
4
(reserved)
-
-
-
5
(reserved)
-
-
-
6
Volume gauge display
ON/OFF
(reserved)
1
0: OFF, 1: ON
-
-
-
-
7
SEIKO EPSON
5-4
0: ↑, ↓,
1: PageUp,
PageDown
-
Revision:B
EMP-S3
DIP-SW
No
BIT
Function
Default
Setting
Setting Value
Note
SW3
SW4
SW6
0
Time to sleep mode
0
-
Configurable by 5
minutes, 1-255
minutes
Default: 30 Minutes
1
Time to sleep mode
1
-
-
2
Time to sleep mode
1
-
-
3
Time to sleep mode
1
-
-
4
Time to sleep mode
1
-
-
5
Time to sleep mode
0
-
-
6
Time to sleep mode
0
-
-
7
Time to sleep mode
0
-
-
0
(reserved)
-
-
-
1
(reserved)
-
-
-
2
0
0: OFF, 1: ON
-
3
Lamp noise analysis
mode
(reserved)
-
-
-
4
(reserved)
-
-
-
5
(reserved)
-
-
-
6
(reserved)
-
-
-
7
(reserved)
-
-
-
0
(reserved)
-
-
-
0: OFF (Displays at
once)
1: ON (Displays
black background)
Select whether to
display black
background or to
display an image.
1
Imaging mask ON/OFF
when the lamp is on.
1
2
(reserved)
-
-
-
3
1
0: OFF, 1: ON
-
1
0: OFF, 1: ON
-
5
Power button ON/OFF
when locking the buttons.
EMP Monitor standby
mode ON/OFF
(reserved)
-
-
-
6
(reserved)
-
-
-
7
(reserved)
-
-
-
4
In order to affect a DIP-SW setting change, turn off the Power button and cool down. The
new settings are in effect as soon as cool-down is complete.
SEIKO EPSON
5-5
Revision:B
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