Epson | EMP-1815 | Service manual | Epson EMP-1815 Service manual

Data Projector
Service Manual
EMP-1825/
EMP-1815/
EMP-1810
EMP-1825/EMP-1815/EMP-1810
CONFIDENTIAL
INTRODUCTION
This Service Manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of the EMP-1825/1815/1810. This information is intended for the experienced repair technicians, and attention should be given to the precautions on the preceding pages.
This manual consists of four chapters and Appendix.
Chapter 1
PRODUCT DESCRIPTIONS
Provides a general overview and basic specifications, specifications of controls, interfaces, consumable supplies, and after service parts.
Chapter 2
OPERATING PRINCIPLES
Describes the configuration of each mechanism, theory of operations of the basic mechanisms and controls in this product.
Chapter 3
TROUBLE SHOOTING
Describes the step-by-step procedures of the trouble shooting.
Chapter 4
DISASSENBLY & ASSEMBLY
Describes the step-by-step procedures for disassembling and assembling the components.
Chapter 5
ADJUSTMENT
Describes the step-by-step procedures for adjusting the functions after replacing the
specific parts.
Chapter 6
APPENDIX
Provides maintenance information (After service menu etc.) required for servicing the
product.
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 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.
Copy right © 2007 SEIKO EPSON CORPORATION.
SEIKO EPSON
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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.
History
Date
Detail of change
Rev.A
2006.12.27
First Release
Rev.B
2007.4.13
P4-17 Change in SW cable forming
Rev.C
2007.11.30
All pages Additional information added for EMP-1825.
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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
Symbol
Meaning
Danger
Indicates an extremely hazardous operation which, if
ignored or operated incorrectly, could result in serious
or fatal personal injury.
Warning
Indicates a potentially hazardous operation which, if
ignored or operated incorrectly, could result in serious
or fatal personal injury.
Caution
Indicates a potentially hazardous operation which, if
ignored or operated incorrectly, could result in minor
injury or damage to equipment.
Prohibited
Matter
Indicates a prohibited action or operation in repair and
maintenance performance.
Instruction
Indicates a compulsory action or operation that must be
carried out in repair and maintenance performance.
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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 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.)
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.
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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 contact the anti-static case containing the new one to the metal part of this
product before taking it out.
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.)
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.
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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 Specifications........................................................................................... 1-3
1.3 External Views ......................................................................................... 1-4
1.4 Dimensions for Ceiling Mount .................................................................. 1-6
Chapter 2 Theory of Operation
2.1 Internal Components................................................................................ 2-2
2.2 Hardware Overview ................................................................................. 2-3
2.2.1 Electrical Circuit Components ....................................................... 2-4
2.2.2 Optical Engine ............................................................................... 2-6
2.3 Temperature Control................................................................................ 2-7
2.3.1 Sensors and Switches................................................................... 2-7
Chapter 3 Troubleshooting
3.1 Before Carrying Out Troubleshooting ...................................................... 3-2
3.1.1 Troubleshooting Tools and Equipment.......................................... 3-2
3.2 Basic Information on Troubleshooting ..................................................... 3-3
3.2.1 LED Indicators............................................................................... 3-3
3.2.2 Cable Connection and Projector’s Status...................................... 3-6
3.3 Troubleshooting ....................................................................................... 3-9
3.3.1 Basic Checking Flowchart ............................................................. 3-9
3.3.2 Abnormality Check ...................................................................... 3-10
3.3.3 Exterior Check............................................................................. 3-11
3.3.4 Connection Check ....................................................................... 3-12
3.3.5 Power ON/OFF & Initialization Check ......................................... 3-14
3.3.6 Image Display & Quality Check................................................... 3-15
3.3.7 Audio I/O’s Check........................................................................ 3-17
3.3.8 Lens Shutter’s Operation Check ................................................. 3-18
3.3.9 Control Panel’s Operation Check ................................................ 3-19
3.3.10 RC & Projector’s Operation Check.............................................. 3-20
3.3.11 Wireless/Wired LAN’s Operation Check (EMP-1825/1815 only). 3-21
Chapter 4 Disassembly/Assembly
4.1 Overview .................................................................................................. 4-2
4.1.1 Precautions ................................................................................... 4-2
4.1.2 Precautions which must be taken when servicing......................... 4-3
4.1.3 Safety precautions......................................................................... 4-3
4.1.4 Tools and Equipment .................................................................... 4-4
4.1.5 Precautions for Optical Engine and Main (MA) Board................... 4-5
4.2 Projector Disassembly and Assembly...................................................... 4-6
4.3 Removing Exterior Parts/Components................................................... 4-10
4.3.1 Removing the AS Lamp Unit ....................................................... 4-10
4.3.2 Removing the Air Filter Assy. ...................................................... 4-11
4.3.3 Removing the Front Foot Unit/Rear Foot/Rubber Foot ............... 4-12
4.3.4 Removing the IF-IM Case/Upper Case Unit AJ........................... 4-13
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4.4 Removing the Engine/Boards ................................................................ 4-20
4.4.1 Removing the Optical Engine and MAB (1) (MA Board Assy.) ... 4-20
4.4.2 Removing the Inner Exhaust Duct B/TH Board Assy. ................. 4-40
4.4.3 Removing the Optical Engine and MAB (2) (Optical Engine)...... 4-42
4.5 Removing Other Main Parts................................................................... 4-46
4.5.1 Removing the Inner Exhaust Duct A/Exhaust Fan Assy. ............ 4-46
4.5.2 Removing the PS Fan/PS Ballast Assy./Speaker ....................... 4-48
4.5.3 Removing the PS Ballast Assy.(2) (Filter Board Unit)/Lamp Fan 4-51
4.5.4 Removing the Intake Fan/PBS Fan/AC Cable/RC Board Assy... 4-54
4.5.5 Removing the Ballast Filter Assy./Security Bar/Lower Case....... 4-58
Chapter 5 Adjustment
5.1 Overview .................................................................................................. 5-2
5.1.1 Required Adjustment List .............................................................. 5-2
5.1.2 Required Equipment/Tools............................................................ 5-2
5.2 Adjustment (Calibration) .......................................................................... 5-3
5.2.1 G-Sensor’s Zero Point Adjustment................................................ 5-3
5.2.2 Inspection Procedure .................................................................... 5-3
5.2.3 CMOS Image Sensor Calibration .................................................. 5-4
5.2.4 Inspection Procedure .................................................................... 5-8
Chapter 6 Appendix
6.1 AS (After Service) Menu .......................................................................... 6-2
6.1.1 How To Display the AS (After Service) Menu ............................... 6-2
6.1.2 Initializing (Resetting) the AS Menu Values .................................. 6-5
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Chapter 1 Product Specifications
EMP-1825/EMP-1815/EMP-1810
CONFIDENTIAL
1.1 Product Features
The EMP-1825/1815/1810 is a portable data projector in a compact body and with the following features.
1.1.1 Features of the Projector
† EMP-1825/1815/1810 Common Features
„ Quick Setup
This feature corrects distortion in the projected image by a simple one-touch operation.
Images can be corrected and matched to the size of the screen to simplify preparations.
„ The A/V mute slide makes it easy to project and store
The A/V mute slide simplifies stopping and resuming projection. You can stop/resume
projection simply by closing/opening the A/V mute slide.
„ No need to cool down (Instant Off)
You can detach the projector's power cable soon after the power is off.
„ Ample protect functions
•Password Protect
By setting a password, you can control and restrict who can use the projector.
•Operation Lock
Setting this function effective can prevent someone from changing the projector’s settings without permission in a situation such as the use in an event, or in a school.
† EMP-1825/1815 Features
„ Wireless LAN fitted as standard equipment
„ Wired LAN terminal mounted
„ Enhanced Network function (EMP-1825)
Faster processing speed than EMP-1815 improves networking performance.
„ USB display
Simply by connecting a USB cable to your computer, you can project images on your
computer’s display.
„ Presentations without a computer
Simply by connecting the USB storage device containing the presentation data, you can
make the presentation without a computer.
„ Multi-screen display
You can project each virtual display set on the computer by using two or more projectors.
You can use it to make file operations and arrangements for the virtual displays while
projecting only the virtual displays.
EMP-1810
EMP-1825/1815
CF card slot
Wireless LAN unit
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1.2 Specifications
MODEL
Specification
of main parts
LCD
Size
EMP-1825/1815
EMP-1810
0.8-inch with MLA
D5
Projection
Lens
Lamp
Brightness
(Color mode:
Game,
Zoom: Wide)
Pixel number
786,432 dots (1024 x 768) x 3
Native Resolution
XGA
Aspect ratio
4:3
Type
Manual zoom / Manual focus
Zoom ratio
1-1.6
Type
210W UHE
Life
2500H(High Bright)/3000H(Low Bright)
High Brightness Mode
3500 ANSI lumens
Low Brightness Mode
2700 ANSI lumens
Sound output
5W Monaural
Card Slot
CF x 1 (3.3V)
Operating Temperature
5°C to 35°C <41°F to 95°F> (20% - 80% humidity)
/Thermal shut down: T > 45°C
5×C to 35 ×C <41×F to 95×F> (over 1500 m / 4921 ft: with High altitude
mode, High brightness) (20% - 80% humidity, unfrozen)
Operating Altitude
0 m to 2286 m <0 ft to 7500 ft>
(over 1500 m / 4921 ft: with High altitude mode)
Start-up period
about 10 seconds (warm-up period: 30 seconds)
Cool-down period
Instant off
Power Supply Voltage
100 - 240 V AC +/10%, 50/60 H
Power
Consumption
100-120V
Area
(JAPAN,
USA,
etc.)
Lamp On
306 W
Standby (Network On)
12 W
Standby (Network Off)
2.6 W
220-240V
Area
(Europe,
etc.)
Lamp On
286W
Standby (Network On)
12 W
Standby (Network Off)
4.6 W
Rated Voltage & Current
Fan Stop
Dimension
100 - 240 V AC 3.4 - 1.5 A 50/60 Hz
Standby & Network Standby
Exclude Feet (D x W x H)
257 x 345 x 86 mm
Maximum Dimension (D x W x H)
257 x 345 x 95 mm
Weight
Fan Noise
N/A
Approx. 6.9 lbs. / 3.1 kg
High Brightness mode
37 dB
Low Brightness mode
32 dB
SEIKO EPSON
1-3
Approx. 6.5 lbs. / 2.9 kg
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CONFIDENTIAL
1.3 External Views
78.1 13.8
137.8
40
181.1
117
11.9
119
72.2
100.8
148
257
135
59
112
18 56.5
345
33.2 34.4
29.1
4.8
47.1
8.8
95.3
86.5
21.4
90
50
115
127
61.6
6.2
80
12
98
M4x9-3
Unit: mm
Figure 1-1. External Dimensions (mm)
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3.07 0.54
5.43
1.57
7.13
4.61
0.47
4.69
2.22
2.84
3.97
5.83
10.1
5.31
2.32
4.41
0.71
13.6
1.31 1.35
1.15
0.19
1.85
0.35
3.75
3.41
0.84
3.54
1.97
4.53
5.0
2.43
2.44
3.15
0.47
3.86
M4x9-3
Unit: inch
Figure 1-2. External Dimensions (inch)
SEIKO EPSON
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1.4 Dimensions for Ceiling Mount
15.5
26.5
50
7
160
19
73
14
Ø
80
141.5
5°
25°
30
52
5°5°
51.5 21.5
100.5
63.5
153.5
117
140
191.5
Unit: mm
Figure 1-3. Dimensions for Ceiling Mount (cm)
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0.61
1.04
2.87
1.9
0.28
5
0.5
6.3
0.75
7
Ø
3.15
5.57
2.5
6.04
4.61
5°
25°
1.18 2.05
5°5°
2.03 0.85
3.96
5.51
7.54
Unit: inch
Figure 1-4. Dimensions for Ceiling Mount (inch)
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Chapter 2 Theory of Operation
EMP-1825/EMP-1815/EMP-1810
CONFIDENTIAL
2.1 Internal Components
The main components that make up the projecter are shown in the figure below.
Upper Case
EMP-1825/1815
Wireless LAN
Control Panel
MA Board Assy.
IM Board Assy.
Lamp Unit
Exhaust Fan
TH Board
(Lamp Thermistor)
Optical Engine
Safety Switch
Lamp Fan
PS Ballast
Assy.
PBS Fan
PS Fan
Intake Fans
Figure 2-1.
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2.2 Hardware Overview
The hardware of this projector consists of the optical block and the electrical circuit
components. The overview of the hardware and functions is shown below.
IS Board
USB Board
IM Board
Wireless LAN
Module
Photo
Interrupter
Control Panel
IS Board
Wired LAN
MA Board
EMP-1810
EMP-1825/1815
Monitor Out
Computer1
L/V(G)
Drive Signal
(CN2000)
Computer2
L/V(R)
Drive Signal
(CN1900)
CVBS
S-Video
L/V(B)
Drive Signal
(CN2100)
EX fan
Safety
SW
Lamp Lid
Detection
SW
RC Board
PBS Fan
L/V
Thermistor
Optical Engine
Lamp
TH Board
Intake Fan A
Intake Fan B
PS Ballast
P/S Fan
Lamp Fan
Figure 2-2.
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2.2.1 Electrical Circuit Components
The components and their functions are explained below.
Component name
The circuit board that controls the whole system and functions of the projector.
The main functions are listed below.
• Degitally processes the input data from the external devices.
• Generates the drive signals of the L/V (R/G/B).
• Controls the external I/O interface.
• Drives and controls the Lamp.
• Monitors the sensors’ input and controls the internal temperature with the
fans (fan drive control).
MA Board
PS Ballast
Assy.
Function
PS Unit
Generates and supplies the DC power used in each components from the AC
input.
Ballast Unit
Generates the power supply to drive the Lamp from the DC power supplied
from the PS Unit.
Control Panel
The control part of the projector located on the Upper Case. Various buttons for
each functions are mounted on the panel.
RC Board
Receives the IR signal from the remote controler. Mounted at the front and the
back of the projector.
Fans
P/S Fan
Ventilates the PS Ballast Assy.
Lamp Fan
Ventilates the Lamp.
EX Fan
Exhausts the heated air generated inside the projector to the outside.
PBS Fan
Ventilates the PBS of the Light Guide Unit.
Intake Fan A/B
Take in fresh air and ventilate the L/V.
TH Board (Lamp
Thermistor)
The thermal detection sensor for the Lamp mounted on the Inner Exhaust Duct
around the lamp. , The fans are controled based on the detected thermal data
together with the one from L/V Thermistor explained below.
The temperature around the Lamp exceeds the specified level, the “High Temp
Warning” is issued. If the temperature continues to rise, the projecctor issues
the “High Temp. Error” message with LED indicators and stop the Ballast Unit,
and shuts off the power supply to the Lamp.
L/V Thermistor
The thermal detection sensor for L/V mounted on the POP of the Optical
Engine. The fans are controled based on the detected thermal data together with
the one from Lamp Thermistor explained above. (The function of the thermistor and the warning signs are the same as the Lamp Thermistor above.
Safety Switch
Functions as the safety device in the case of the loss of temperature control due
to the failure of the thermistors. This is a detection switch for the prevension of
overheating, and is mounted on the side of the Inner Exhaust Duct. If the internal temperature exceeds the specified level, the switch cuts off the AC power
supply. The power supply cannot be activated until the internal temperature
drops below the certain level.
Lamp Lid
Detection Switch
Detects the status of the cover for the lamp replacement. If the Lamp Lid
opens, the power supply to the Lamp is cut off. In such a case, the power supply cannot be activated.
Sensors
Lens Shutter Detection Sensor
(Photo Interrupter)
SEIKO EPSON
The sensor using a photo interrupter to detect the status of the Lens Shutter.
The “Closed” status is detected when the protrusion of the shutter for detection
blocks the detection light inside the sensor. On the “Closed” Status:
the solid black is displayed.
the audio output switches to the A/V mute mode.
the Lamp turns to the Low Brightness mode.
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EMP-1825/EMP-1815/EMP-1810
L/V (R/G/B)
Photo Interrupter
P/S Fan
CN1305
CN1202
CN1204
Intake Fan B
CN1303
PS Ballast (SCI)
(EMP-1800 only)
CN500
IS Board
CONFIDENTIAL
PS Ballast (Power)
CN2200
CN1203
Control Panel
CN2400
L/V Thermistor
Intake Fan A
CN1301
CN1306
Speaker
Lamp Fan
CN1302
CN1300
CN1201
CN1900
CN1304
CN2100
TH Board
Lamp Lid Detection SW
EX Fan
IM Board
CN502 (EMP-1825/1815 only)
CN2000
PBS Fan
CN1205
CN1307
RC Board
Figure 2-3. Control Circuit Connecting Diagram
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CONFIDENTIAL
2.2.2 Optical Engine
The Optical Engine consists of the Lamp Unit, the Light Guide Unit, the POP (Panel-onPrism) Unit, and the projection lens.
Focus Ring
Zoom Ring
ProjectionLens
POP Assembly
(Prism Unit + L/V(R/G/B))
Light Gu ide U nit
Figure 2-4. Optical Engine
Component
Name
Lamp Unit
Function/Other
An UHE-210W high-intensity discharge lamp is used as the light source.
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).
Light Guide
Unit
Multi Lens Alley
Diffuses the light from the lamp to provide uniform illumination.
Polarizer (PBS)
Polarizes the light and remove the U/V component harmful to the
L/V.
Dichroic Mirrors
Disperse the polarized light into the R/G/B spectrums.
The heart of the Optical Engine. Consists of the L/V (R/G/B) and the Prism Unit.
POP Unit
Projection
lens
SEIKO EPSON
Light Valve (L/V)
Controls the intensity of the distributed components of the RGB
light.
Prism Unit
Integrates the RGB light
Sends the integrated light onto the screen. Two adjustment rings are mounted: the Zoom
Ring to scale the projected image, and the Focus Ring to focus the lens.
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2.3 Temperature Control
The internal temperature of this projector is monitored by the sensors (the Lamp thermistor, L/
V thermistor) in order to protect the projector from internal overheat, which may cause unsafe
state or damage to the projector. The fans’ revolutions are controled according to the detected
temperature data. The fans’ revolutions are altered by changing the driving voltage based on
the detected data. In this way, the ventilation level is optimaized and the internal temperature is
kept stablized.
2.3.1 Sensors and Switches
The fans and sensors mounted in this product, and the routes of air flow are shown below.
Lamp (Heat source)
PBS Fan
POP (Susceptible to heat)
EX Fan
TH Board
Lamp Fan
LV
Thermistor
PS Ballast
(Heat source)
Intake Fans
P/S Fan
Figure 2-5.
Part Name
Function
Intake Fan A/B
Take in fresh air from the intake duct (with Air Filter) located in the bottom of
the projector, and supply it to the Light Valves R/G/B.
P/S Fan
Ventilates the circuit boards of the PS Ballast Assy.
Lamp Fan
Ventilates the inside of the Lamp Unit.
PBS Fan
Ventilates the PBS (Polarizer) of the Optical Engine.
EX Fan
Exhausts the heated air generated inside the projector to the outside.
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Chapter 3 Troubleshooting
EMP-1825/EMP-1815/EMP-1810
CONFIDENTIAL
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
Projection screen
Tape measure (3 m)
Host computer
USB mouse
Video equipment
Multi meter
Double-sided tape
General tools
SEIKO EPSON
Quantity
1
1
1
1
1
1
Short
length
1 set
Application/Other
Projecting images
Measuring projection distances
Transmitting audio and image data
Checking the operation of the mouse
Transmitting audio and image data
Measuring resistance values and voltages (AC/DC)
Attaching parts
Tools and equipment listed in Section 4.1
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CONFIDENTIAL
3.2 Basic Information on Troubleshooting
This section describes basic information needed when executing the troubleshooting.
3.2.1 LED Indicators
The control panel has three LEDs that indicate the operating status of the projector.
Power indicator
Lamp indicator
Temp indicator
Figure 3-1 LED Indicators
The following tables show what the indicators mean and how to remedy any problem
indicated.
† Power indicator lights red: Abnormal
ON
Table 3-2. LED Indicator Status (Error)
Indicator Status
Red
Red
Projector
Status
Red
Internal Error
SEIKO EPSON
Blink
OFF
Problem and Remedy
[Status]
Abnormality is detected from any of the following elements on
the MA board.
• ROM Error
• RAM Error
• I2C Error
• DR Status Error
• Sub System ROM Error
• Sub System Communication Error
[Remedy]
Disconnect the AC cable once, and reconnect it, then turn the
power on. If the same error occurs, replace the Optical Engine
and MAB set because the MA board is broken. (refer to 4.4.1
"Removing the Optical Engine and MAB (1) (MA Board
Assy.)" (p. 20) / 4.4.3 "Removing the Optical Engine and MAB
(2) (Optical Engine)" (p. 42))
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Table 3-2. LED Indicator Status (Error)
Indicator Status
Red
Red
Projector
Status
Problem and Remedy
Fan Error
Sensor Error
[Status]
Abnormality is detected from any of the fans or the sensors
mounted on the projector. (Fan’s abnormality: irregular revolution/disconnection, Sensor’s abnormality: irregular value
detected/disconnection)
[Remedy]
Check the connections between the fans/sensors and the MA
board. If the same error occurs after improvement, replace the
Optical Engine and MAB set because the MA board is broken.
(refer to 3.2.2 "Cable Connection and Projector’s Status" (p. 6)
/ 4.4.1 "Removing the Optical Engine and MAB (1) (MA
Board Assy.)" (p. 20) / 4.4.3 "Removing the Optical Engine
and MAB (2) (Optical Engine)" (p. 42))
High Temp Error
(overheating)
[Phenomenon]
The lamp turns off automatically, and the projection stops. Left
the projector for 5 minutes untouched, it switches to the
standby mode.
[Status]
The internal temperature rises over the specified level. (The TH
sensor detects overheating.)
(refer to 3.3.2 "Abnormality Check" (p. 10))
[Remedy]
Check the Air Filter’s condition (dirt accumulation, clogging)
When clogging or the like is found, clean/replace the filter.
(refer to 4.3.2 "Removing the Air Filter Assy." (p. 11))
Red
Red
Lamp problem
Lamp failure
Lamp cover is
open
[Status]
Abnormality occurs to the lamp and the ignition/illumination
processes fail, or the Lamp Lid is not securely closed.
[Remedy]
Check the following one by one. After checking and improving, turn on the power again and check if the same error occurs
again.
• Whether the Lamp Lid is securely fixed. Check the Lamp
Lid, and fix it securely if it is loose/open.
• Whether the lamp is securely fixed. Check the lamp and fix it
securely if it is loose.
• Whether the lamp is broken/damaged. Take out and check the
lamp for damage. If the lamp is not cracked: Re-fit the lamp
and turn on the power. If the error continues, replace the lamp
with a new one. If the lamp is broken/damaged, replace it
with a new one.
(refer to 4.3.1 "Removing the AS Lamp Unit" (p. 10))
• The Air Filter’s condition (dirt accumulation, clogging)
When clogging or the like is found, clean/replace the filter.
(refer to 4.3.2 "Removing the Air Filter Assy." (p. 11))
When using the projector at an altitude of 1500 m or more, set
"High Altitude Mode" to "On"
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† Lamp or Temp indicator flashes orange: Warning
ON
Blink
OFF
Varies according to the projector status
Table 3-3. LED Indicator Status (Warning)
Indicator Status
Red
Projector
Status
Problem and Remedy
High Temp Warning
(This is not an abnormality. However, if the temperature rises
too high again, projection stops automatically.)
• Check that the air filter and air exhaust vent are clear, and
that the projector is not positioned against a wall.
• If the air filter is clogged, clean or replace it.
(refer to 3.3.2 "Abnormality Check" (p. 10) / 4.3.2 "Removing
the Air Filter Assy." (p. 11))
Replace Lamp
Replace it with a new lamp.
If you continue to use the lamp after the replacement period has
passed, the possibility that the lamp may explode increases.
Replace it with a new lamp as soon as possible. (refer to 4.3.2
"Removing the Air Filter Assy." (p. 11))
Orange
Orange
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3.2.2 Cable Connection and Projector’s Status
The projector’s status when disconnection occurs somewhere is described below.
When some irregular status is seen, refer to the following table and check the doubted connectors are securely connected. If there is a disconnection or a loose connection, connect it firmly.
(For the procedure to remove the Upper Case, refer to 4.3.4 "Removing the IF-IM Case/Upper
Case Unit AJ" (p. 13))
CN1202
(EMP-1810 only) CN500
CN1303
CN1301
CN2200
CN1305
CN2400
CN1203
CN1204
CN1306
CN1300
CN1302
CN1201
CN1304
CN2100
CN1900
CN502
(EMP-1825/1815 only)
CN2000
CN1307
CN1205
Figure 3-2 Connectors on the MA board
Table 3-4. Mal-connection and the Projector’s Status
Connection
(Common to EMP-1825/1815/1810)
MA board
Status
Connected to
CN1900
Optical Engine (L/V(R))
The power can turn on and the projection starts. But the
projected image is all red or magenta (with a red frame).
CN2000
Optical Engine (L/V(G))
The power can turn on and the projection starts. But the
projected image is all green or cyan (with a green
frame).
CN2100
Optical Engine (L/V(B))
The power can turn on and the projection starts. The
projected image is all blue, but this error cannot be easily found since the default window is the same color.
Check the color of the menu window.
CN2200
PS Ballast (PS)
Even if the AC cable is connected, the power indicator
is not lit. The power button does not work. (the same
status as CN1203 Control Panel)
CN2400
Speaker
The power can turn on and the projection starts normally. But no sound is output from the speaker even if
the audio input is applied.
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Table 3-4. Mal-connection and the Projector’s Status
Lamp Lid Detection SW
The power can turn on and the projection starts, but
instantly the projector changes to the Lamp Error mode.
(refer to 3.2.1 "LED Indicators" (p. 3)) The power turns
off after a certain period of cooling. But the error message continues to be on.
CN1202
PS Ballast (SCI)
The power can turn on and the power indicator blinks,
but the lamp is not ignited, so no image is projected.
After a while, the projector changes to the Lamp Error
mode. (refer to 3.2.1 "LED Indicators" (p. 3)) The
power turns off after a certain period of cooling. But the
error message continues to be on.
CN1203
Control Panel
Even if the AC cable is connected, the power indicator
is not lit. The power button does not work. (the same
status as CN2200 PS Ballast (PS))
Photo Interrupter
The power can turn on and the projection starts normally. But even if the lens shutter is closed, the projection continues fully and the lamp keeps on. The AV
mute function does not work when the shutter is closed,
so the sound continues to be on. If the shutter kept
closed, it may be deformed or damaged, so be careful.
• Note: The control of AV Mute from the Remote Controller is effective.
CN1205
RC board
The power can turn on and the projection starts normally. But the control from the rear does not function.
The control from the front is still effective, so if the
RC’s signal reflects from the screen, the control from
the rear might be effective. When checking, send the
signal to the back of the projector only. Otherwise, this
error can be easily slipped over, so be careful.
• Note: The setting of the RC receivers (active/inactive)
is available from the menu. So, check the setting of
the corresponding receiver before applying the remedy.
CN1300
TH board
CN1301
L/V thermistor
CN1302
Intake Fan A
CN1303
Intake Fan B
CN1304
Exhaust Fan
CN1305
P/S Fan
CN1306
Lamp Fan
CN1307
PBS Fan
CN1201
CN1204
The power can turn on and the projection starts, but
instantly the projector changes to the Fan/Sensor Error
mode. (refer to 3.2.1 "LED Indicators" (p. 3)) The
power turns off after a certain period of cooling. But the
error message continues to be on.
Connection (EMP-1810 only)
MA board
CN500
IS board
Connected to
IS board
Connected to
CN10
MA board
SEIKO EPSON
Status
The power can turn on and the projection starts normally. If the [QuickSetup] button is pressed, the Quick
Setup function does not work, instead, the message that
the measurement of Quick Setup is unavailable and ask
to check the setting of the projector is displayed.
The control from the rear does not function. The control
from the front is still effective.
• (Note: The setting of the RC receivers (active/inactive) is available from the menu. So, check the setting
of the corresponding receiver before applying the
remedy.
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Table 3-4. Mal-connection and the Projector’s Status
Connection (EMP-1825/1815 only)
MA board
CN502
IM board
Connected to
IM board
Connected to
CN1303
MA board
CN801
USB board
CN1300
IS board
IS board
CN10
SEIKO EPSON
Connected to
IM board
Status
The power can turn on and the projection starts normally. On the bottom left, the message that EasyMP is
starting continues to be displayed for a few minutes. But
the menu button works normally. Then, the message that
something happens to EasyMP and ask to press [?] for
help is displayed.
The power can turn on and the projection starts normally. If the projector is connected to the network with
the wireless LAN unit, the projector cannot be recognized. But if the wireless LAN unit is not used, this error
can be slipped over, so be careful.
The power can turn on and the projection starts normally. If the [QuickSetup] button is pressed, the Quick
Setup function does not work, instead, the message
"The measurement of Quick Setup cannot be done.
Please check the setting of the projector." is displayed.
The control from the rear does not function. The control
from the front is still effective.
• (Note: The setting of the RC receivers (active/inactive) is available from the menu. So, check the setting
of the corresponding receiver before applying the
remedy.
3-8
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EMP-1825/EMP-1815/EMP-1810
CONFIDENTIAL
3.3 Troubleshooting
Following the Basic Checking Flowchart below, check the trouble and refer to the flowchart
corresponding to it (the charts are provided from the next page).
C A U T IO N
If the Optical Engine and MAB set and/or the IS board assy. is/are replaced as the
remedy, be sure to refer to the Chapter 5 "Adjustment" (p. 1) and make the
corresponding adjustment.
3.3.1 Basic Checking Flowchart
Start
Abnormality Check
Exterior Check
࡮Abnormality Check
Check for abnormality such as noises, smell and disturbance.
࡮Exterior Check
Check the exterior for damage or the like.
࡮Connection Check
Cable Connection
Power ON/OFF
Judging from the status, presume the connector with mal-connection.
Removing the Upper Case and check the connection on the MA board
and other boards (improve the connection if needed.)
࡮Power ON/OFF & Initialization Check
Connect the AC cable and turn the power ON.
Check the operation of initialization until the message
"No signal." is displayed.
Check the operation of turning the power OFF."
Image Display/Quality
࡮Image Display & Quality Check
Check the quality of image and I/O signals of
each visual I/O terminal.
Audio Input/Output
࡮Audio I/O's Check
Check the operation of each audio input terminal
and the [A/V Mute] button.
Lens Shutter
࡮Lens Shutter's Operation Check
Check the operation while sliding it.
Check the Mute function while shutting
it when projecting an image.
Control Panel
Remote Control
USB Mouse
Wireless/Wired LAN
(EMP-1825/1815 only)
࡮Control Panel's Operation Check
Check the operation and the function
of each button of Control Panel.
࡮RC & Projector's Operation Check
Check the operation and the function
of each button of Remote Control.
࡮USB mouse's Operation Check
Check the operation of USB mouse through
USB interface.
࡮Wireless/Wired LAN's Operation Check
Check the operation between the projector
and the computer on each LAN.
Flowchart 3-1 Basic Checking Flowchart
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CONFIDENTIAL
3.3.2 Abnormality Check
START
Yes
Any abnormal noises?
࡮Check the fans for any foreign objects around them.
࡮The cause might be a malfunction of the power supply unit
(pulse transformer vibration, etc.).
No
Yes
Overheated?
࡮Check the thermistors and Safety Switch for malfunction.
࡮Check the fans for dirt or abnormality.
࡮Check the Air Filiter for dirt.
࡮Check the Optical Engine for malfunction.
No
Yes
Any visual abnormality?
࡮Check for Malfunction of Optical Engine.
࡮Check for dirt/deformation on: Light Guide Unit,
Projection Lens, Light Valves.
No
Yes
Any abnormal smell or
anything burning?
࡮Check for burn on the cables from heat.
࡮Check for burn of dust from heat.
Flowchart 3-2 Abnormality Check
SEIKO EPSON
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CONFIDENTIAL
3.3.3 Exterior Check
START
Upper Case
࡮Any damage/deformation/cracking due to external forces?
࡮Fixed to Lower Case correctly?
࡮Any foreign object/dirt on IR receiver?
࡮Any foreign object/dirt on the vents?
Lens Shutter
Control Panel
Projection Lens
Lamp Lid
Lamp Unit
Install
Lamp Unit
Lower Case
࡮Fixed to Upper Case correctly?
࡮Work smoothly?
࡮Fixed to Upper Case correctly?
࡮Any stuck buttons?
࡮Buttons work smoothly?
࡮Forcus/Zoom rings work smoothly?
࡮Any dirt/scratches on the lens?
࡮Fixed to Upper Case correctly?
࡮Any damage on the latch?
(Check for it with the lid removed.)
࡮Any burn/deformation on the frame?
(Check for it with the lamp removed.)
࡮Any deformation/discoloration on the connector?
࡮Any dirt on the glass surface?
࡮Any damage/deformation/cracking due to external forces?
࡮Any foreign object/dirt on the vents?
Front/Rear Foot
࡮Front Foot work smoothly to adjust height?
࡮Any Foot Rubber detached?
AC Inlet
࡮Any deformation/discoloration on the connector/terminals?
࡮Any damage on the socket?
IF connectors
࡮Any deformation/discoloration on the connectors/terminals?
࡮Any foreign objects on the connectors/terminals?
Air Filter
࡮Fixed to the Lower Case correctly?
࡮Any dirt on the filter? (check for it with the filter removed.)
࡮Any dirt on Intake Fans?
Install
Air Filter
For more information, refer to 4.3.1 "Removing the AS Lamp Unit" (p. 10) / 4.3.2 "Removing the Air Filter Assy." (p. 11)
Flowchart 3-3 Exterior Check
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CONFIDENTIAL
3.3.4 Connection Check
C A U T IO N
Before starting the checking work, be sure to turn off the power and detach the
AC cable. (refer to 3.2.2 "Cable Connection and Projector’s Status" (p. 6))
Start
Remove
Upper Case
Control Panel
࡮MA board CN1203 (Lock-type connector)
Photo Interrupter
࡮MA board CN1204
EX Fan
࡮MA board CN1304
TH board
࡮MA board CN1300
L/V thermistor
࡮MA board CN1300
RC board
࡮MA board CN1205
Intake Fan A,B
Light Valve R/G/B
࡮MA board CN1302‫ޔ‬CN1303
࡮MA board CN1900/CN2000/CN2100 (Lock-type connector)
To Next Page
For more information, refer to 4.3.4 "Removing the IF-IM Case/Upper Case Unit AJ" (p. 13) /
4.4.1 "Removing the Optical Engine and MAB (1) (MA Board Assy.)" (p. 20)
Flowchart 3-4 Connection Check (1)
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CONFIDENTIAL
From previous
page
PS Ballast
࡮MA board CN2200‫ޔ‬CN1202
P/S Fan
࡮MA board CN1305
Lamp Lid
Detection SW
࡮MA board CN1201
Lamp Fan
࡮MA board CN1306
Speaker
࡮MA board CN2400
(EMP-1825/1815's case)
IM board
࡮MA board CN502
(EMP-1810p's case㧕
Remove
MAboard
IS board
࡮MA board CN500
IS board
࡮IM board CN1300
MA board
࡮IM board CN1303
USB board
࡮IM board CN801
Install
MA board
Install
Upper Case
Flowchart 3-5 Connection Check (2)
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CONFIDENTIAL
3.3.5 Power ON/OFF & Initialization Check
Start
Connect AC cable
1.When pressing [Power] button on Control Panel,
does
indicator flash green, then light green?
2.Does the lamp illuminate?
3.Does indicator flash orange for approx. 2 seconds,
then light orange?
NG
1. Re-connect MA board
CN1203 correctly.
NG
2. Replace Control Panel
NG
3. Replace PS Ballast Assy.
NG
4. Replace Optical Engine
and MAB set.
If PS Ballast does not work well,
apply the remedy from the top (1).
If it does not work, go on to the
next remedy.
For more information, refer to 4.3.4.1. "Removing the Control Panel E/Lamp Lid Detection Switch" (p.
15) / 4.5.2 "Removing the PS Fan/PS Ballast Assy./Speaker" (p. 48) / 4.4.1 "Removing the Optical
Engine and MAB (1) (MA Board Assy.)" (p. 20) / 4.4.3 "Removing the Optical Engine and MAB (2)
(Optical Engine)" (p. 42)
Flowchart 3-6 Power ON/OFF & Initialization Check
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CONFIDENTIAL
3.3.6 Image Display & Quality Check
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
1.Set the projector on
an even workbench.
2. Press [Power] button
to turn the power ON.
No
Replace Lamp.
Does Lamp illuminate?
Yes
1.Is the image projected?
2.Is the value of auto
keystone correction "0"?
Is the message "No
signal" displayed
on the bottom left?
No
No
Make G-Sensor's adjustment
(refer to Ch.5 Adjustment.)
Replace Optical Engine
and MAB set.
Yes
1. Adjust the height with Front Foot.
2. Adjust the size of image with Zoom Ring.
3. Adjust keystone with the Keystone] buttons.
4. From menu, select [Position], and adjust it.
5. Adjust the focus with Focus Ring.
To next page
Flowchart 3-7 Image Display & Quality Check (1)
SEIKO EPSON
3-15
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EMP-1825/EMP-1815/EMP-1810
CONFIDENTIAL
From previous
page
Is the image vivid?
No
1. Clean Projection
Lens.
Yes
NG
2. Clean the periphery
of L/V.
Connect PC to the
computer terminal,
and project an image.
If the image is not vivid
enough, apply the remedy
from the top (1). If it does
not work, go on to the next
remedy.
No
Is the image projected?
1. Replace the cable.
Yes
NG
Press [Source Search]
button, and switch to
the corresponding source.
2. Replace Optical Engine
and MAB set.
If the image is not projected,
apply the remedy from the
top (1). If it doesnot work,
go on to the next remedy.
1. Press [Menu] button.
NG
2. Select [Image].
Quality check
3. Adjust Brightness, Contrast, etc.
OK
Check all the interfaces for the same
items according to the same procedure.
For more information, refer to 4.3.1 "Removing the AS Lamp Unit" (p. 10) / 4.4.1 "Removing
the Optical Engine and MAB (1) (MA Board Assy.)" (p. 20) / 4.4.3 "Removing the Optical
Engine and MAB (2) (Optical Engine)" (p. 42)
Flowchart 3-8 Image Display & Quality Check (1)
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CONFIDENTIAL
3.3.7 Audio I/O’s Check
Start
1. Input PC input to audio I/F.
2. Press [Source Search] button
and switch to the corresponding
souce.
3. Output sound from the Speaker.
1. Re-connect MA board
CN2400 correctly.
NG
1. Does the sound output from
Speaker?
2. Replace Speaker
NG
NG
2. Is the volume control effective?
3. With [A/V Mute] button,
is the function of stopping
/resuming the sound effective?
3. Replace Optical Engine and
MAB set.
If the sound I/O do not work well,
apply the remedy from the top (1).
If it doesnot work, go on to the next remedy.
For more information, refer to 4.5.2 "Removing the PS Fan/PS Ballast Assy./Speaker" (p. 48) /4.4.1
"Removing the Optical Engine and MAB (1) (MA Board Assy.)" (p. 20) / 4.4.3 "Removing the Optical Engine and MAB (2) (Optical Engine)" (p. 42)
Flowchart 3-9 Audio I/O’s Check
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CONFIDENTIAL
3.3.8 Lens Shutter’s Operation Check
Start
1. Replace the corresponding cable.
NG
Does AV Mute function start/stop,
when closing/opening the shutter?
NG
2. Replace Photo Interrupter.
NG
3. Replace Optical Engine and MAB set.
If theAV Mute does not work correctly, apply the
remedy from the top (1). If it doesnot work, go on
to the next remedy.
For more information, refer to 4.3.4.2. "Removing the Lens Shutter B/Lens Shutter A/Photo Interrupter" (p. 18) / 4.4.1 "Removing the Optical Engine and MAB (1) (MA Board Assy.)" (p. 20) / 4.4.3
"Removing the Optical Engine and MAB (2) (Optical Engine)" (p. 42)
Flowchart 3-10 Lens Shutter’s Check
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CONFIDENTIAL
3.3.9 Control Panel’s Operation Check
Start
1. Does pressing [Power] button turn the power on/off?
2. Does pressing [Menu] button display the menu window?
3. Does pressing [Source Search] button change input sources?
4. Does pressing [Help] button display the help window?
5. By pressing [Enter] button, is the selected item effective?
6. By pressing the keystone buttons, is the adjustment effective?
7. By pressing [ESC] button, is the current status canceled?
OK
NG
8. By pressing [QuickSetup] button,
is the function effective?
1. Re-connect MA board
CN502 correctly.
NG
NG
2. Replace Control Panel.
1. Make two adjustments
referring to Ch5 Adjustment.
NG
NG
3. Replace Optical Engine
and MAB set.
2. Replace IS board Assy.
If replacing IS board Assy, make
the same adjustment as the remedy 1
again. If it does not work, replace
Optical Engine and MAB set, and
make the same adjustment again.
If the buttons does not work correctly,
apply the remedy from the top (1).
If it doesnot work, go on to the next
remedy.
For more information, refer to 4.3.4.1. "Removing the Control Panel E/Lamp Lid Detection Switch"
(p. 15)/4.4.1 "Removing the Optical Engine and MAB (1) (MA Board Assy.)" (p. 20)/4.4.3 "Removing the Optical Engine and MAB (2) (Optical Engine)" (p. 42)/4.4.1.2. "Removing the SB Assy. IM*1
(IS Board Assy.*2)/IM Board Assy.*3 /CF Slot Assy.*3/USB Board Assy.*3" (p. 29)
Flowchart 3-11 Control Panel’s Operation Check
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CONFIDENTIAL
3.3.10 RC & Projector’s Operation Check
Start
1. By pressing [Power] button on Remote Controller,
Is turning the power on/off effective ?
2. Do all the buttons work properly?
3. Is the control effective approx. 6m away from
the front/back of the projector?
NG
1. Select [Remote Receiver]
from the menu, set all the
receivers active.
NG
2. Replace the batteries of
the controller.
NG
3. Replace the controller.
NG
4. Replace Optical Engine
and MAB set.
If the buttons does not work correctly,
apply the remedy from the top (1).
If it doesnot work, go on to the next
remedy.
For more information, refer to 4.4.1 "Removing the Optical Engine and MAB (1) (MA Board
Assy.)" (p. 20) / 4.4.3 "Removing the Optical Engine and MAB (2) (Optical Engine)" (p. 42)
Flowchart 3-12 RC & Projector’s Operation Check
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3.3.11 Wireless/Wired LAN’s Operation Check (EMP-1825/1815 only)
Start
Is Easy MP window displayed?
1. Is the connected-to-network simbol
displayed on PC's monitor?
NG
2. Is the projector recognized on PC's
EMP monitor?
NG
1. Restart the projector.
1. Re-set Wireless LAN correctly.
NG
NG
2. Re-configure the Easy MP
farmware by download it again.
2. Re-configure the network
with Easy MP.
NG
NG
3. Check the setting of EMP
monitor on PC again.
NG
4. Replace Wireless LAN.
NG
5. Replace USB board Assy.
NG
6. Replace Optical Engine
and MAB set.
Apply each remedy above from the top. If it does not work, go on to the next remedy.
For more information, refer to 4.4.1.2. "Removing the SB Assy. IM*1 (IS Board Assy.*2)/IM
Board Assy.*3 /CF Slot Assy.*3/USB Board Assy.*3" (p. 29) / 4.4.1 "Removing the Optical
Engine and MAB (1) (MA Board Assy.)" (p. 20) / 4.4.3 "Removing the Optical Engine and
MAB (2) (Optical Engine)" (p. 42)
Flowchart 3-13 Wireless/Wired LAN’s Operation Check (EMP-1825/1815 only)
SEIKO EPSON
3-21
Revision:C
Chapter 4 Disassembly/Assembly
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.1 Overview
This chapter describes the procedures for disassembling and assembling the main components
of the EMP-1825/1815/1810 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
equipment.
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.
SEIKO EPSON
4-2
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.1.2 Precautions which must be taken when servicing
The precautions given below must be always observed whenever you disassemble/reassemble
the projector to maintain the quality. Make sure to also observe the WARNING and CAUTION
precautions given in each section describing disassemble/reassemble procedure of each unit or
component in this chapter.
„ When the projector is disassembled, the dust in and around parts such as the fans and air fil-
ter 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 assembly 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.
4.1.3 Safety precautions
For safety purpose, and to protect the product from damage, the precautions given below must
always be observed.
1. Disconnect the power cable from both the projector and the electrical outlet.
2. Disconnect any interface cables from the projector.
3. Always wear gloves when disassembling and reassembling the projector.
4. Use static discharge equipment such as anti-static wrist straps when accessing internal
components to protect sensitive electronic components and circuitry.
5. 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.
6. Before disassembling the projector, make sure to clean any dust or dirt on the air filter,
interface section and outer case using a vacuum cleaner or other method.
SEIKO EPSON
4-3
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.1.4 Tools and Equipment
The table below lists the tools and equipment required for servicing the projector. All are
commercially available, and should be made ready beforehand.
Table 4-1.
Name
Qty.
Application
Phillips screwdriver No. 0 (8cm)
1
Disassembling the focus ring and the zoom
ring
Phillips screwdriver No. 1 (10cm)
1
Disassembling the outer case and inner components
Phillips screwdriver No. 2 (10cm)
1
Disassembling the outer case and inner components
Flathead screwdriver
1
Disassembling the rear foot and the front foot
Hexagonal box screwdriver (5 mm)
1
Removing the computer interface
Tweezers
1
Removing the FPC cable
Heat-resistant tape
q.s.*
Securing cables
Brush
1
Cleaning away dust
Vacuum cleaner
1
Cleaning away dust
Lens cleaner
q.s.*
Air blower
1
Gloves
1
Anti-static wrist band
1
Cleaning the projection lens
Cleaning the light valves and fans
* q.s.: sufficient quantity
SEIKO EPSON
4-4
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.1.5 Precautions for Optical Engine and Main (MA) Board
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.
C A U T IO N
„ Always replace the Optical Engine and MA Board together as a matched pair.
„ Do not disassemble the Optical Engine. Special jigs are required for
reinstalling the optical components in the engine, such as POP Assy.,
condenser lens, mirrors. Reassembling the Optical Engine without using the
jigs are strictly prohibited.
„ Do not remove the upper guide cover of the Optical Engine. Doing so may
contaminate the internal components with dust or dirt attached to the Optical
Engine and adversely affect the image quality.
Only removing these
screws is permitted.
Figure 4-1.
SEIKO EPSON
4-5
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.2 Projector Disassembly and Assembly
The general disassembly procedure for the EMP-1825/1815/1810 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 4.3 "Removing Exterior Parts/Components" to 4.5 "Removing
Other Main Parts", links to which are given in the flowchart below.
C A U T IO N
Do not reassemble the Optical Engine.
START
4.3.1 Removing the AS Lamp Unit (p. 10)
4.3.2 Removing the Air Filter Assy. (p. 11)
4.3.4.1 Removing the Control Panel E/
Lamp Lid Detection Switch (p. 15)
4.3.3 Removing the Front Foot Unit/Rear
Foot/Rubber Foot (p. 12)
4.3.4.2 Removing the Lens Shutter B/Lens
Shutter A/Photo Interrupter (p. 18)
4.3.4 Removing the IF-IM Case/Upper
Case Unit AJ (p. 13)
4.4.1 Removing the Optical Engine and
MAB (1) (MA Board Assy.) (p. 20)
4.4.1.1 Removing the IF Board Assy. (p. 28)
4.4.2 Removing the Inner Exhaust Duct B/
TH Board Assy. (p. 40)
4.4.1.2 Removing the SB Assy. IM*1 (IS
Board Assy.*2)/IM Board Assy.*3 /CF Slot
Assy.*3/USB Board Assy.*3 (p. 29)
4.4.3 Removing the Optical Engine and
MAB (2) (Optical Engine) (p. 42)
4.4.3.1 Removing the Focus Ring/Zoom
Ring (p. 45)
4.5.1 Removing the Inner Exhaust Duct A/
Exhaust Fan Assy. (p. 46)
Treat the parts within the broken line as a
single part “Optical Engine and MAB.”
4.5.2 Removing the PS Fan/PS Ballast
Assy./Speaker (p. 48)
4.5.3 Removing the PS Ballast Assy.(2)
(Filter Board Unit)/Lamp Fan (p. 51)
4.5.4 Removing the Intake Fan/PBS Fan/
AC Cable/RC Board Assy. (p. 54)
C H E C K
P O IN T
4.5.5 Removing the Ballast Filter Assy./
Security Bar/Lower Case (p. 58)
„ The procedures are described with EMP-1815 otherwise specified.
„ The part names above and in this chapter are simplified. See the “Part Names
given in the SPI” table on the next page for the corresponding official names.
Figure 4-2.
SEIKO EPSON
4-6
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
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
Optical Engine and MAB
LAMP UNIT FOR AS
CASE,LOWER
filter,ballast
AIR FILTER ASSY.
FILTER,RC
CABLE RCR;FIF
FOOT,REAR
FOOT RUBBER
FOOT UNIT,FRONT
HOLDER,PS
FAN ASSY,EXHAUST
SHEET,FAN PROTECTION;FIF
CUSHION,INTAKE FAN;A
PRINTED CIRCUID BOARD ASSEMBLY;RC
DUCT,INTAKE
FAN,INTAKE;A
FAN,INTAKE;B
SHEET,INTAKE FAN
PLATE NUT;M2
DUCT,PS
FAN,PS
POWER SUPPLY BALLAST ASSY
FAN,LAMP
SHIELD PLATE,LAMP
DUCT,LAMP
Sheet_BS,FIF
DUCT,EXHAUST,INNER;A
DUCT,EXHAUST,INNER;B
PRINTED CIRCUIT BOARD ASSEMBLY;TH_R1
CABLE TH;FIF
FOCUS RING
ZOOM RING
CASE,IF,IM
PLATE,IF,IM
SPEAKER
SEIKO EPSON
4-7
Optical Engine
AS Lamp Unit
Lower Case
Ballast Filter
Air Filter Assy.
RC Filter
Cable RCR FIF
Rear Foot
Rubber Foot
Front Foot Unit
PS Holder
Exhaust Fan Assy.
Fan Protection Sheet FIF
Intake Fan Cushion A
RC Board Assy.
Intake Duct
Intake Fan A
Intake Fan B
Intake Fan Sheet
M2 Plate Nut
PS Duct
PS Fan
PS Ballast Assy.
Lamp Fan
Lamp Shield Plate
Lamp Duct
BS Sheet FIF
Inner Exhaust Duct A
Inner Exhaust Duct B
TH Board Assy.
TH Cable FIF
Focus Ring
Zoom Ring
IF-IM Case
IF-IM Plate
Speaker
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
Table 4-2. Part Names given in the SPI
Official Name used in SPI
Names used this Chapter
SWITCH,LAMP LID DETECT
PLATE,USB FASTEN
PRINTED CIRCUIT BOARD ASSEMBLY;US
SHEET,IF,SHADE
EMI,SUPPRESSOR
SHIELD,PLATE,IM
CASE,UPPER,ASSY;AJ
CASE UNIT,UPPER;AJ
SHEET,CASE UPPER
CUSHION,COVER PRJ LENS;B
SHEET,SHADE;IM
LENS,LED
PLATE,NUT;M3
PHOTO INTERRUPTER
CABLE,SW
SHUTTER,LENS;A
SHEET,SHUTTER LENS
SHUTTER,LENS;B
SPRING,SHUTTER
LID,LAMP,AS
S.C.B.SCREW,3X6,F/NI
LID,CASE UPPER
CUSHION;LED
SHEET,USB,SHADE
SHEET,SHADE;L
GASKET;B
CONTROL PANEL;E
Model Name Plate
DUMMY CARD,CF
SLOT,CF, ASSY.
LABEL,IF
SHEET,SENSOR
PRINTED CIRCUIT BOARD ASSEMBLY;IM_S2
PRINTED CIRCUIT BOARD ASSEMBLY;IF_S2
PRINTED CIRCUIT BOARD ASSEMBLY;IS_S2
PRINTED CIRCUIT BOARD ASSEMBLY;IS_S2
PRINTED CIRCUIT BOARD ASSEMBLY;USB_S2
FFC,SENSERBOARD,IM
SEIKO EPSON
4-8
Lamp Lid Detection Switch
USB Fastening Plate
USB Board Assy.
IF Shade Sheet
EMI Suppressor Sheet
IM;2 Shield Plate
Upper Case Assy. AJ
Upper Case Unit AJ
Upper Case Sheet
PJ Lens Cushion B
Shade Sheet IM
LED Lens
M3 Plate Nut
Photo Interrupter
SW Cable
Lens Shutter A
Lens Shutter Sheet
Lens Shutter B
Shutter Spring
AS Lamp Lid
Upper Case Lid
Cushion LED
USB Shade Sheet
Shade Sheet L
Gasket B
Control Panel E
Model Name Plate
Dummy CF Card
CF Slot Assy.
IF Label
Sensor Sheet
IM Board Assy.
IF Board Assy.
SB Board Assy. IM
IS Board Assy.
USB Board Assy.
SB-IM FFC Cable
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
Table 4-2. Part Names given in the SPI
Official Name used in SPI
Names used this Chapter
CABLE,MA-IM
CABLE,USB
PLATE,CF
PLATE,IM,FASTEN
SHEET,SHADE,CFSLOT
SHEET.SHADE,USB
COVER,DUCT,EX,INNER;B
SHEET,SHADE;LG
FILTER BOARD UNIT
PLATE,ACINLET,FASTEN
DUCT,PBS
EMI,SUPPRESSOR;E
SEIKO EPSON
MA-IM Cable
USB Cable
CF Plate
IM Fastening Plate
CF Slot Shading Sheet
USB Shading Sheet
Cover Inner EX Duct B
LG Shading Sheet
Filter Board Unit
AC Inlet Fastening Plate
PBS Duct
EMI Suppressor E
4-9
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.3 Removing Exterior Parts/Components
4.3.1 Removing the AS Lamp Unit
1. Loosen the screw (SCREW,LAMP;3X6) that secures the AS Lamp Lid, and remove the AS
Lamp Lid.
2. Remove the screw (SCREW,LAMP;3X6) from the AS Lamp Lid.
3. Loosen the two screws that secure the AS Lamp Unit and remove the AS Lamp Unit.
AS Lamp Unit
AS Lamp Lid
SCREW,
LAMP;3X6
Figure 4-3.
4. (EMP-1825/1815 only)
Push the button on the right of the CF Card Slot, and remove the Dummy CF Card.
5. (EMP-1825/1815 only)
If the Wireless LAN Unit is mounted, remove the screw that secures the Wireless LAN Unit
and remove the Wireless LAN Unit.
Wireless LAN Unit
Dummy CF Card
Screw
Figure 4-4.
SEIKO EPSON
4-10
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.3.2 Removing the Air Filter Assy.
1. Pull the tab of the Air Filter Assy. in the direction of the arrow with your finger, and remove
the Air Filter Frame.
Air Filter Assy.
tab
Figure 4-5.
SEIKO EPSON
4-11
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.3.3 Removing the Front Foot Unit/Rear Foot/Rubber Foot
„ 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 4-6.
„ Removing the Rear Foot/Rubber Foot
1).Pull and rotate the Rear Foot to remove the Rear Foot.
2).Press a screwdriver or similar tool into the small slot beside the Rear Foot and pry out the
Rubber Foot from the projector Lower Case Unit.
Rubber Foot
Rear Foot
Figure 4-7.
SEIKO EPSON
4-12
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.3.4 Removing the IF-IM Case/Upper Case Unit AJ
„ Removing the IF-IM Case
1).Remove the four screws (C.B.SCREW,3X6,F/NI) that secure the IF-IM Case, and
remove the IF-IM Case.
2).Remove the IF Label from the IF-IM Case.
IF-IM Case
IF Label
Figure 4-8.
„ Removing the Upper Case Unit AJ
3).Remove the eight screws (C.B.P-TITE SCREW,3X10,F/ZB-3C) that secure the Upper
Case Unit AJ from the bottom.
Figure 4-9.
SEIKO EPSON
4-13
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4).Remove the screw (C.B.P-TITE SCREW,3X10,F/ZB-3C) that secures the Upper Case
Unit AJ from the top.
5).Remove the M3 Plate Nut from the Upper Case Unit.
6).Lift the Upper Case Unit carefully. (Three cables are connected to the MA Board. So, be
careful not to lift the case too much to avoid the damage to the three connector cables.)
Upper Case
M3 Plate Nut
Figure 4-10.
C A U T IO N
When connecting the cable to CN1203, be sure to lock the connector.
7).Disconnect the two connector cables from the connectors CN1201 and CN1204 on the
MA Board, and unlock the connector CN1203 and disconnect the Control Panel Cable.
CN1203
Locked
Unlocked
CN1204
CN1201
Figure 4-11.
SEIKO EPSON
4-14
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.3.4.1. Removing the Control Panel E/Lamp Lid Detection Switch
1. Remove the Control Panel E from the Upper Case Unit AJ.
2. Remove the screw (C.C.B-TITE SCREW,2X12,F/ZN-3C) that secures the Lamp Lid
Detection Switch, and remove the Lamp Lid Detection Switch from the Upper Case Unit
AJ.
3. Remove the following parts from the Upper Case Unit AJ.
• Upper Case Sheet
• PJ Lens Cushion B
• Sensor Sheet
• LG Shading Sheet
• Ferrite Core
• LED Lens (* EMP-1825/1815 only)
• LED Cushion (* EMP-1825/1815 only)
Upper Case Sheet
LG Shading Sheet
Lamp Lid Detection Switch
PJ Lens Cushion B
Cushion LED*
Ferrite Core
LED Lens*
Control Panel E
Figure 4-12.
SEIKO EPSON
4-15
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ When reassembling the Upper Case, attach the parts below to the specified
places according to the standard.
• PJ Lens Cushion B
Horizontally: the center between the red lines.
Vertically: aligning it to the guide.
• Upper Case Sheet
Attach the sheet matching it to the Upper Case’s rib’s shape.
• L/G Shade Sheet;A
Horizontally: align it to the rib (red-lined)
Vertically: align it to the edge of the hollow for Control Panel (blue-lined).
PJ Lens Cushion B
Upper Case Sheet
L/G Shade Sheet;A
Figure 4-13.
SEIKO EPSON
4-16
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ Secure the SW cable and the ferrite core of the Control Panel to the Upper
Case with heat-resistant tape according to the standard below.
• Red lines: 4.5cm ± 5mm in between.
• Blue lines: attach the ferrite core in the center between the lines.
• Green lines: the same length as the Control Panel.
SW cable
Figure 4-14.
• Fold the SW Cable outward at 90 degrees between the Wireless LAN socket and
the rib shown in (1), then fold back the cable inward at 180 degrees aligning it
with its right edge as shown in (2).
• Secure the fold with heat resistant tape as shown in (3).
LAN Socket
Rib
Tape
(1)
(2)
(3)
Figure 4-15.
• No caught cables, or floating case is allowed.
• Connect the following connectors.
SEIKO EPSON
Connector No.
Connected to
CN1201
Lamp Lid Detection SW
CN1203
Control Panel
CN1204
Photo Interrupter
4-17
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.3.4.2. Removing the Lens Shutter B/Lens Shutter A/Photo Interrupter
1. Remove the screw (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secures the Lens Shutter B,
and remove the Lens Shutter B from the Upper Case Unit AJ together with the Lens Shutter
A and the Photo Interrupter.
2. Remove the Lens Shutter A and the Shutter Spring from the Lens Shutter B.
3. Remove the Photo Interrupter from the Lens Shutter B
4. Remove the SW Cable from the Photo Interrupter.
5. Remove the Lens Shutter Sheet from the Lens Shutter A.
Lens Shutter A
Shutter Spring
Lens Shutter B
Lens Shutter Sheet
SW Cable
Photo Interrupter
Figure 4-16.
SEIKO EPSON
4-18
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ When attaching the Lens Shutter Sheet to the Lens Shutter, follow the
standard below.
• Align the sheet to the red lines.
• Protrusion: 0mm (outside)/ within 1mm (inside)
Lens Shutter Sheet
Lens Shutter
Figure 4-17.
„ After replacing the Photo Interrupter, always perform operation check as
described below.
1). Turn the power on with the Lens Shutter open.
2). After confirming that the blue image (default) is displayed, close the Lens
Shutter as shown below. If the image turns black, there is no problem with
the parts or the connection.
Lens Shutter
Figure 4-18.
SEIKO EPSON
4-19
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.4 Removing the Engine/Boards
4.4.1 Removing the Optical Engine and MAB (1) (MA Board Assy.)
1. Unlock the connectors of the Light Valve R/G/B connection cables.
Light Valve B
Locked
Light Valve R
Unlocked
Light Valve G
Figure 4-19.
C A U T IO N
„ When connecting the R/G/B Light Valve cables, be sure to insert the R/G/B Light
Valve cables securely into the connectors to the end. If there is a loose connection
(a half-way/slant connection), it may cause short-circuiting, or malfunction, and
which may result in damage to or overheating of the ICs on the cables.
„ Be sure to lock the connectors when reassembling.
2. Disconnect the R/G/B Light Valve cables and the 13 connector cables that are connected to
the MA Board from the board.
CN1202
(EMP- 1810 only)
CN500
CN2200
CN1305
CN1303
CN1301
CN2400
CN1203
CN1204
CN1302
CN1306
CN1300
Light Valves
CN1201
CN1304
CN502
(EMP-1825/1815 only)
CN1307
CN1205
Figure 4-20.
SEIKO EPSON
4-20
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
3. Remove the nine screws (C.C.SCREW,3X6,F/ZN-3C) that secure the MA Board Assy.
4. Remove the screw (C.P.(S-P1)SCREW,4X6,F/ZN-3C) that secures the MA Board Assy.’s
GND.
5. Remove the screw (C.B.SCREW,3X6,F/NI) that secures the USB terminal, and remove the
MA Board Assy.
6. Remove the following parts from the MA Board Assy.
• EMI Suppressor; C
• Heat Sink;A x 3
• Heat Sink;PW
• PJ Lens Cover Cushion x2
Heat Sink;A
MA Board Assy.
Heat Sink;PW
C.B.SCREW,
3X6,F/NI
EMI Suppressor; C
C.P.(S-P1)SCREW,
4X6,F/ZN-3C
Figure 4-21.
SEIKO EPSON
4-21
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ When reassembling the MA board, attach the following parts as shown below.
1). Attach the EMI suppressor; C first, then attach the Heat Sink; PW on it.
2). Align the Heat Sink; A as shown in the figure below.
EMI suppressor; C
Heat Sink; PW
Heat Sink; A
Figure 4-22.
SEIKO EPSON
4-22
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ Attach the IF Shade Sheet as shown in the figure below.
IF Shade Sheet
Figure 4-23.
„ <EMP-1810 only>
Attach the LAN Shade Sheet to the USB Terminal as shown in the figure below.
USB Terminal
LAN Shade Sheet
LAN Shade Sheet
Figure 4-24.
SEIKO EPSON
4-23
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ When installing the MA Board Assy., be sure to place the red-circled parts
coming inside of the metal parts as shown in the figures below.
OK
NG
Figure 4-25.
SEIKO EPSON
4-24
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ When connecting the cables to the MA Board Assy., route the cables as
follows.
2
4
1
3
5
6
7
8
9
10
11
12
14
13
Figure 4-26.
No
SEIKO EPSON
Connected to
No
Connected to
1
RC Board
8
PS Ballast (PS)
2
PBS Fan
9
PS Fan
3
IM Board
10
PS Ballast (Ballast)
4
Exhaust Fan
11
Intake Fan (R)
5
TH board
12
IS Board
6
Lamp Fan
13
L/V thermistor
7
Speaker
14
Intake Fan (L)
4-25
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
• (1), (2), (3)’s Routing
1). Do not route the cables inside the red-line.
1
2
3
Figure 4-27.
• (4), (5), (6), (7), (8)’s Routing
1). Do not route the cables inside the red-line.
2). Twist (4) around (5) clockwise before connecting it.
3). Secure (8) tightly to the PS’s frame with heat-resistant tape at the green
square.
4). Do not route the cables over the blue-lined part.
4
5
6
7
8
Figure 4-28.
SEIKO EPSON
4-26
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
• (8), (9), (10), (11)’s Routing
1). Route (8) through the loops of (9), (10), (11) before connecting it.
2). Do not route the cables outside the red line.
8
11
10
9
Figure 4-29.
• (12), (13), (14)’s Routing
1). Press down the top of (12)’s loop in the direction of the arrow to avoid the
interference with the Lens Shutter.
2). Do not route (13) outside the red line.
14
13
12
Figure 4-30.
SEIKO EPSON
4-27
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.4.1.1. Removing the IF Board Assy.
1. Remove the IF Shade Sheet from the MA Board Assy.
2. Remove the eight screws (Screw, HSH 4-40) that secure the D Sub15pin terminals and the
two screws (C.B.P-TITE SCREW,3X8,F/ZB-3C) that secure the RCA terminals and Sterminal.
3. Remove the screw (C.C.SCREW,3X6,F/ZN-3C) that secures the IF Board Assy.
4. Remove the two screws (C.C.SCREW,3X6,F/ZN-3C) that secure the IF-IM Plate, and
remove the IF-IM Plate together with the IF Board Assy. from the MA Board Assy.
MA Board Assy.
IF-IM Plate
IF Shade Sheet
Screw, HSH 4-40
IF Board Assy.
Screw, HSH 4-40
C.B.P-TITE SCREW,
3X8,F/ZB-3C
Figure 4-31.
SEIKO EPSON
4-28
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.4.1.2. Removing the SB Assy. IM*1 (IS Board Assy.*2)/IM Board Assy.*3
/CF Slot Assy.*3/USB Board Assy.*3
NOTE *1: EMP-1825/1815’s Case/*2: EMP-1810’s Case/*3: EMP-1825/1815 only
„ Removing SB Assy. IM (IS Board Assy.)
1).Disconnect the SB-IM FFC Cable from the connector on the SB Assy. IM (IS Board
Assy.).
2).Remove the two screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the SB Fixing Plate, and remove the SB Fixing Plate together with the SB Assy. IM (IS Board
Assy.) from the Lower Case.
3).Remove the two screws (C.B.P-TITE SCREW,2.5X6,F/ZN-3C) that secure SB Assy. IM
(IS Board Assy.), and remove the SB Assy. IM (IS Board Assy.) from the SB Fixing
Plate.
• Removing Conduction Plate; SB (EMP-1810 only)
In Step 3, remove the Conduction Plate; SB at the same time.
SB Fixing Plate
C.B.P-TITE SCREW,
2.5X6,F/ZN-3C
SB Assy. IM
(IS Board Assy.)
EMP-1810 only
Conduction Plate; SB
C.B.P-TITE SCREW,
2.5X6,F/ZN-3C
Figure 4-32.
SEIKO EPSON
4-29
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
„ Removing the IM Board Assy. (EMP-1825/1815 only)
4).Remove the screw (C.C.SCREW,3X6,F/ZN-3C) that secures the IM Board Assy.
5).Remove the three screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the IM
Board Assy. and remove the IM Board Assy.
6).Disconnect the MA-IM Cable from the connector (CN1302) on the IM Board Assy.
7).Disconnect the SB-IM FFC Cable from the connector (CN1300) on the IM Board Assy.
8).Disconnect the USB Cable from the connector (CN30) on the USB Board Assy.
C.C.SCREW,3X6,F/ZN-3C
IM Board Assy.
MA-IM Cable
SB-IM FFC Cable
CN1300
CN1302
CN30
USB Cable
Figure 4-33.
SEIKO EPSON
4-30
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
9).Remove the two screws (C.C.SCREW,3X6,F/ZN-3C) that secure the CF Plate, and
remove the CF Plate together with the USB Board Assy. and CF Slot Assy.
(to Removing the USB Board Assy./CF Slot Assy. (EMP-1825/1815 only) (p. 38))
10).Remove the screw (C.C.SCREW,3X6,F/ZN-3C) that secures the IM Fastening Plate,
and remove the IM Fastening Plate.
11).Remove the IM Shield Plate from the IM Board Assy.
12).Remove the USB Cable from the connector (CN801) on the IM Board Assy.
13).Remove the CF Slot Shading Sheet from the IM Board Assy.
14).Remove the Connector Shading Sheet from the IM Shied Plate.
15).Remove the following parts from the IM Board Assy.
• Gasket 5x5 x 3 (1)
• Gasket 10x10 x 2 (2)
• LAN Shading Sheet
• USB Shading Sheet;B
• EMI Suppressor* x 2 (EMP-1815’s case)
LAN Shading Sheet
IM Board Assy.
EMI Suppressor*
EMI Suppressor*
USB Cable
CN801
USB Shading Sheet; B
(2)
CF Plate
(1)
Connector Shading Sheet
(1)
(1)
CF Slot Shading Sheet
(2)
IM Shied Plate
IM Fastening Plate
Figure 4-34.
SEIKO EPSON
4-31
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
„ Removing EMI Suppressor/EMI Suppressor E (EMP-1825’s case)
C A U T IO N
„ In EMP-1825’s case, seven EMI Suppressor and two EMI Suppressor E are
attached on the back of the IM Board Assy. Refer to Figure 4-37 (p. 33) for
attaching locations.
„ When replacing the IM Board Assy., refer to the instructions on the next page
and attach EMI Suppressor and EMI Suppressor E to the specified locations.
16).Remove the seven EMI Suppressors from the back of the IM Board Assy.
17).Remove the two EMI Suppressor E in the same manner.
IM Board Assy.
EMI Suppressor E
EMI Suppressor
Figure 4-35.
„ Removing MA Shield Plate/Shield Plate Fasten (EMP-1810 only)
1).Remove the two screws (C.C.SCREW,3X6,F/ZN-3C) that secure the Shield Plate Fasten, and remove the Shield Plate Fasten.
2).Remove the screw (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secures the MA Shield
Plate, and remove the MA Shield Plate.
Shield Plate Fasten
MA Shield Plate
C.B.P-TITE SCREW,
2.5X10,F/ZN-3C
Figure 4-36.
SEIKO EPSON
4-32
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ (EMP-1825 only) When replacing IM board Assy., attach EMI suppressors
(x9) following the instructions below aligning them with the markings and
covering the wiring marked with pink.
(1): Align it with the right sides of IC A, B and left sides of IC G and CF slot.
(2): Align it with the top of (1) and IC B, and left side of CF slot.
(3): Align it with the left side of (2) and top of FPC opening (1) covering all IC E and
lower left of IC C.
(4): Align it with the left side of (3) and bottom of FPC opening (2).
(5): Attach it over (3) and (4) covering IC D and E.
(6): Align it with the bottom side of (4).
(7): Attach it over the left side of (6) covering the lower half of IC F.
(8): Fold the shaded area at the edge and attach it to the back.
(9): Align it with the bottom of IC A and left of (8), then fold the shaded area at the
edge and attach it to the back.
D
(5)
C
FPC opening(2)
E
(3)
(4)
(2)
FPC opening(1)
CF Slot
(6)
F
B
(1)
(7)
G
A
(8)
(9)
IC
Marking
EMI Suppressor
(5)
(3)
(2)
(4)
(6)
(7)
(1)
(8)
(9)
Completed image
Figure 4-37.
SEIKO EPSON
4-33
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ (EMP-1815 only) When reassembling the IM Board Assy., follow the
standard below.
• Attach the EMI Suppressor Sheets (x2) aligning them to the red-lined standard
(allowed protrusion: 1mm outside from the lines).
Figure 4-38.
SEIKO EPSON
4-34
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ (EMP-1815/1825 only) After the CF Shading Sheet is installed as shown
below, attach the Gasket (x2) to the circled places through the holes.
CF Shading Sheet
Gasket 5x5 (L=10)
Figure 4-39.
„ (EMP-1815/1825 only) Attach the USB Shading Sheet; B and the LAN
Shading Sheet as shown below aligning on the IM Board’s surface. Attach the
Gaskets as shown in the figure below.
Gasket 5x5 (L=10)
USB Shading Sheet; B
Gasket 10 x10 (L=10)
LAN Shading Sheet
Figure 4-40.
„ (EMP-1815/1825 only) Before installing the IM Shield Plate, attach the BS
Sheet FIF, IM Shading Sheet, Connector Shading Sheet according to the redlined standard as shown in the figure below.
IM Shading Sheet
BS Sheet FIF
Connector Shading Sheet
Figure 4-41.
SEIKO EPSON
4-35
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ (EMP-1815/1825 only) After installing the IM Shield Plate and the IM
Fastening Plate to the IM Board Assy., attach the Gasket to the specified place
shown below in the direction of the arrow upward.
IM Shield Plate
IM Fastening Plate
Gasket 10 x 10 (L=10)
Figure 4-42.
„ (EMP-1815/1825 only) When installing the IM Board Assy., be careful about
the following direction.
• Route the Cables from the RC board and the PBS Fan as shown in the figure
below.
Figure 4-43.
SEIKO EPSON
4-36
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
• Set the bead core and the ferrite core of the USB cable as shown in the figure
below.
USB cable’s core
Bead core
Figure 4-44.
• Attach the Conduction Plate; Fan of the USB Board Assy contacting with the
metal part of the Intake Fan.
Conduct Plate; Fan
Intake Fan
Metal part
Figure 4-45.
SEIKO EPSON
4-37
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
„ Removing the USB Board Assy./CF Slot Assy. (EMP-1825/1815 only)
16).Remove the two screws (C.C.SCREW,3X6,F/ZN-3C) that secure the USB Board Assy.
from the CF Plate, and remove the USB Board Assy and Conduction Plate; Fan.
17).Remove the USB Shading Sheet from the USB Board Assy.
18).Remove the two screws (C.B.SCREW,3X8,F/ZB-3C) that secure the CF Slot Assy.
from the CF Plate, and remove the CF Slot Assy.
Conduction Plate; Fan
USB Board Assy.
USB Shading Sheet
CF Plate
C.B.SCREW,
3X8,F/ZB-3C
CF Slot Assy.
Figure 4-46.
SEIKO EPSON
4-38
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ (EMP-1815/1825 only) When reassembling the USB Board Assy., attach the
USB Shading Sheet drawing out the connector’s ribs from the hole as shown
in the figure.
USB Shading Sheet
Figure 4-47.
„ (EMP-1815/1825 only) When installing the Conduction Plate; Fan, follow the
standard below
• Align it at an angle of 25°±5° from the bottom of the board as shown in the
figure below.
Conduction Plate; Fan
Figure 4-48.
SEIKO EPSON
4-39
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.4.2 Removing the Inner Exhaust Duct B/TH Board Assy.
1. Remove the screw (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secures the Cover Inner
EX Duct B, and remove the Cover Inner EX Duct B from the Inner Exhaust Duct B.
2. Remove the screws (x2: C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the Inner
Exhaust Duct B, and remove the Inner Exhaust Duct B.
3. Remove the TH Board Assy. from the Inner Exhaust Duct B.
Cover Inner EX Duct B
Inner Exhaust Duct B
TH Board Assy.
Figure 4-49.
SEIKO EPSON
4-40
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ When installing the Inner EX duct B, set the Safety Switch into the notch of
the duct as shown in the figure below.
Safety Switch
Figure 4-50.
SEIKO EPSON
4-41
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.4.3 Removing the Optical Engine and MAB (2) (Optical Engine)
1. Remove the LG Shading Sheet.
2. Remove the four screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the Optical
Engine, and remove the Optical Engine.
LG Shading Sheet
Optical Engine
Figure 4-51.
SEIKO EPSON
4-42
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ When installing the Optical Engine, follow the directions below.
1). Route the cable of the L/V thermistor as shown below.
2). Attach the LG Shading Sheet aligning the red-circled parts as shown in
the figure below.
LG Shading Sheet
L/V thermistor
Figure 4-52.
3). Set the bead core between the Intake Fan and the Optical Engine.
Intake Fan
Bead core
LG Shading Sheet
Figure 4-53.
SEIKO EPSON
4-43
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
When sending the replaced Optical Engine and MAB set to the repair center, be
sure to send all the parts listed below.
Table 4-3. Components of Optical Engine and MAB set
Part name
qt.
Optical Engine
1
1
1
1
1
3
1
1
1
2
MA Board Assy.
IF Board Assy.
IF Plate
IF Shading Sheet
Heat Sink; A
EMI Suppressor Sheet;C
Heat Sink; PW
LG Shading Sheet
PJ Lens Cover Cushion
LAN Shading Sheet
(EMP-1810 only)
SEIKO EPSON
4-44
1
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.4.3.1. Removing the Focus Ring/Zoom Ring
1. Remove the three screws (C.P.TYPE3 B-TITESCREW,1.7X4,F/ZB-3C) that secure the
Focus Ring, and remove the Focus Ring.
2. Remove the three screws (C.P.TYPE3 B-TITESCREW,1.7X4,F/ZB-3C) that secure the
Zoom Ring, and remove the Zoom Ring.
Optical Engine
Zoom Ring
Focus Ring
Figure 4-54.
SEIKO EPSON
4-45
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.5 Removing Other Main Parts
4.5.1 Removing the Inner Exhaust Duct A/Exhaust Fan Assy.
1. Remove the screw (C.C.SCREW,3X6,F/ZN-3C) that secures the Lamp Connector, and
release the Lamp Connector from the Inner Exhaust Duct A.
2. Remove the three screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the Inner
Exhaust Duct A, and remove the Inner Exhaust Duct A while drawing out the Safety Switch
from the hole of the Inner Exhaust Duct A.
3. Remove the Exhaust Fan Assy. from the Inner Exhaust Duct A.
Lamp Connector
C.C.SCREW,
3X6,F/ZN-3C
Exhaust Fan Assy.
Inner Exhaust Duct A
Safety Switch
Figure 4-55.
SEIKO EPSON
4-46
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ When installing the Inner EX Duct; A, set the Safety Switch through the hole
as shown in the figure below.
Safety Switch
hole
Figure 4-56.
SEIKO EPSON
4-47
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.5.2 Removing the PS Fan/PS Ballast Assy./Speaker
„ Removing the PS Fan
1).Remove the two screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the PS
Duct, and remove the PS Duct together with the PS Fan from the Lower Case.
2).Remove the PS Fan from the PS Duct.
3).Remove the two BS Sheet FIFs from the PS Duct.
„ Removing the PS Ballast Assy.
4).Remove the screw (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secures the Lamp cable.
5).Remove the screw (C.P.(S-P1)SCREW,4X6,F/ZN-3C) that secures the PS Ballast Assy.’s
GND.
6).Remove the two screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the PS Ballast Assy.
7).Disconnect the AC cable from the connector on the PS Ballast Assy., and remove the PS
Ballast Assy.
„ Removing the Speaker
1).Remove the two screws (C.C.SCREW,3X6,F/ZN-3C) that secure the Speaker, and
remove the Speaker from the PS Ballast Assy.
C.C.SCREW,
3X6,F/ZN-3C
PS Ballast Assy.
PS Fan
Speaker
AC cable
BS Sheet FIF
C.P.(S-P1)
SCREW,4X6,
F/ZN-3C
Lamp cable
PS Duct
Figure 4-57.
SEIKO EPSON
4-48
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ When reassembling the PS Duct, attach the BS Sheet FIF (x2) according to the
standard shown in the figure below.
BS Sheet FIF
Figure 4-58.
SEIKO EPSON
4-49
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ Follow the procedure below to install the PS Ballast Assy.
1). Route the Lamp Cable (igniter not-attached side) as shown below.
hooks
Figure 4-59.
2). Route the Lamp cable (igniter attached side) through the groove indicated
by the red box in the figure below. Make sure that the Lamp cable is not
routed under the PS Board.
Lamp cable
Figure 4-60.
SEIKO EPSON
4-50
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.5.3 Removing the PS Ballast Assy.(2) (Filter Board Unit)/Lamp Fan
„ Removing the Filter Board Unit
1).Remove the two screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the AC
Inlet Fastening Plate.
2).Disconnect the AC Cable from the connector on the Filter Board Unit, and unlock the
three hooks and remove the Filter Board Unit together with the AC Inlet Fastening Plate.
3).Remove the screw (C.P.(S-P1)SCREW,4X6,F/ZN-3C) that secures the AC Inlet’s GND
cable.
4).Remove the two screws (C.B.SCREW,3X8,F/ZB-3C) that secure the AC Inlet, and
remove the AC Inlet Fastening Plate.
5).Remove the screw that secures the Filter Board Unit’s GND, and remove the Filter Board
Unit.
„ Removing the Lamp Fan
6).Remove the two screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the Lamp
Duct, and remove the Lamp Duct together with the Lamp Fan from the Lower Case.
7).Remove the Lamp Fan from the Lamp Duct.
8).Remove the two BS Sheet FIF from the Lamp Duct.
BS Sheet FIF
Lamp Duct
Lamp Fan
AC Cable
BS Sheet FIF
C.C.SCREW,
3X6,F/ZN-3C
AC Inlet
Fastening
Plate
C.P.(S-P1)
SCREW,4X6,
F/ZN-3C
hooks
Filter Board Unit
AC Inlet’s
GND cable
AC Inlet
Figure 4-61.
SEIKO EPSON
4-51
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ When installing the Filter Board Unit, make sure to observe the following
points.
• The black cable must cross over the white cable.
• The fuse holder must not contact with the cable
Fuse holder
Filter Board Unit
Figure 4-62.
„ Before installing the Lamp Duct, attach the BS sheets to the Lamp Duct. Make
sure to align the sheets’ corners with the corners indicated by the red lines in
the figure (within an error of ± 1 mm).
Lamp Duct
Figure 4-63.
SEIKO EPSON
4-52
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ After installing the Lamp Fan, make sure that the AC cable and the PBS Fan
cable are properly fastened at the three points indicated by the red circles in
the figure.
Figure 4-64.
SEIKO EPSON
4-53
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.5.4 Removing the Intake Fan/PBS Fan/AC Cable/RC Board Assy.
„ Removing the Intake Fan
1).Remove the six screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the Intake
Duct, and remove the Intake Duct from the Lower Case.
2).Remove the two Fastening Plate A from the Intake Duct.
3).Remove the four screws (two each: C.B.P-TITE SCREW,3X12,F/ZN-3C) that secure the
two Intake Fans from both the sides of the Intake Duct, and remove the Intake Fans.
4).Remove the two Intake Fan Sheet (one each) from the Intake Fans.
5).Remove the two BS Sheet FIF (one each) from the Intake Duct.
„ Removing the PBS Fan/AC Cable
6).Remove the screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secures the PBS Duct,
and remove the PBS Duct together with the PBS Fan from the Lower Case.
7).Remove the CB Relay Cable from the PBS Fan.
8).Remove the Ferrite Core of the AC Cable from the fastening hole on the Lower Case,
and remove the AC Cable.
9).Remove the Intake Fan Cushion A from the Lower Case.
„ Removing the RC Board Assy.
1).Remove the RC Board Assy. from the Lower Case.
2).Remove the TH Cable FIF from the RC Board Assy.
Intake Fan
Fastening Plate A
Intake Fan
Sheet
CB Relay Cable
Lamp Fan
(PBS Fan)
PBS Duct
Intake Fan
Intake Fan
Sheet
Intake Fan
Cushion A
TH Cable FIF
C.B.P-TITE
SCREW,3X12,
F/ZN-3C
Intake Duct
RC Board Assy.
AC Cable
Figure 4-65.
SEIKO EPSON
4-54
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ Follow the procedure below to install the AC cable.
1). Make sure that the ferrite core is inserted all the way into the slot of the
Lower Case.
2). Route the AC cable as shown below.
Figure 4-66.
„ Before installing the Intake Fan, attach the Intake Fan Sheet to the fan. Make
sure to align the arc of the sheet with the arc of the fan where the fan cable
comes out.
Intake Fan Sheet
Figure 4-67.
SEIKO EPSON
4-55
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ Follow the procedure below to install the PBS Fan.
1). Attach the Intake Fan Cushion A as shown below.
Intake Fan Cushion A
Figure 4-68.
2). Route the cable of the PBS Fan as show below. Be careful not to let the
cable go upper side from the red line shown in the figure.
PBS Fan
Figure 4-69.
SEIKO EPSON
4-56
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
3). Install the PBS Fan to the Lower Case retaining the cable routed at Step 2.
Figure 4-70.
SEIKO EPSON
4-57
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
4.5.5 Removing the Ballast Filter Assy./Security Bar/Lower Case
1. Remove the Ballast Filter Assy. from the Lower Case.
2. Remove the Lower Shield Plate from the Lower Case.
3. Remove the two screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the Security
Bar Cover, and remove the Security Bar Cover and the Security Bar from the Lower Case.
4. Remove the two gaskets (5x5L=10) from the Lower Shield Plate.
5. Remove the following parts from the Lower Case.
(a) BS Sheet FIF
Lower Shield Plate
Ballast Filter Assy.
Security Bar Cover
Lower Case
Security Bar
(a)
Figure 4-71.
SEIKO EPSON
4-58
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ Make sure to observe the following points to install the Lower Case.
• Attach the four gaskets aligning their corners with their respective reference red
lines (within an error of ± 0.5 mm).
2
1
3
4
Reference lines for 1 and 2
Reference lines for 3
Reference lines for 4
Figure 4-72.
SEIKO EPSON
4-59
Revision:C
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
„ Before installing the Lower Shield Plate, attach the two gaskets to the plate.
Make sure to align the gaskets’ corners with the corners of the plate indicated
by the red lines.
Gasket 5 x 5 (L=10)
Figure 4-73.
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„ Install the Lower Shield Plate to the Lower Case as shown below.
Figure 4-74.
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Chapter 5 Adjustment
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
5.1 Overview
This chapter describes the adjustment procedures required after repairing or replacing certain
parts.
5.1.1 Required Adjustment List
The adjustment required after repair work is listed below.
Table 5-1. Adjustment (Calibration)
Adjustment Item
Adjustment name
G-Sensor’s Zero
Point Adjustment
Purpose
Method
To reset abnormal G-Sensor’s Zero
Point to adjust the Auto Keystone
Correction function.
• Judgment Process
1. Set the projector on an even
workbench in the standard status, (refer to 5.2.1 "G-Sensor’s
Zero Point Adjustment" (p. 3))
and turn on the power.
In the case that the correction value in the
judgment is other than "0," execute the
adjustment setting the projector on an even
workbench. Start from the menu using the
menu button on the control panel. (refer to
5.2.1 "G-Sensor’s Zero Point Adjustment"
(p. 3))
2. Check the correction value in the
CMOS
Image Sensor
Calibration
To adjust the "Quick Setup"
function, when replacing the IS
Board Assy, or the Optical Engine
and MAB set.
Execute the adjustment in a darkroom
equipped with a screen setting the projector
according to the specified standard.
5.1.2 Required Equipment/Tools
The adjustment procedures require the following equipment and tools.
Table 5-2. Required Equipment/Tools
Adjustment name
G-Sensor’s Zero
Point Adjustment
Required
Equipment
Workbench
• Having a flat even surface.
• The inclination to the forward/backward/left/right is within
0.5°. (Measure the value using a level.)
Darkroom
• The environment where no external light shines on the CMOS
Image Sensor.
• There are no strongly reflective things in front of the projector, such as a desk or a fixing metal or the like.
Screen
• Must be more than 70 inch and over.
• Must be a white matt coated screen.
• No distortion or no dirt on the screen.
• No foreign materials (tape or some reflective things) within
the projected image (with Zoom Ring set to Wide) and in the
outside of 40 cm left/right and 5cm above/below. (refer
toFigure 5-1)
Workbench
• There must be over 50 cm from the floor level to the setting
position of the projector. (refer to Figure 5-2)
• No inclination. (standard: allowed inclination within 2° to the
forward/backward/Left/Right)
• The projection distance must be within 100 cm ± 2 cm. (Projection distance: the distance between the projector and the
screen.)
CMOS Image Sensor
Calibration
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Requirements
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CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
5.2 Adjustment (Calibration)
This section describes the procedures of the adjustment (Calibration).
5.2.1 G-Sensor’s Zero Point Adjustment
The procedure of the G-Sensor’s Zero Point Adjustment is explained below.
† Purpose
To reset abnormal G-Sensor’s Zero Point to adjust the Auto Keystone Correction function,
in the case that the G-Sensor’s Zero Point has been set wrong for some reasons.
† Setting Environment
Set the projector on an even workbench.
• Adjust the workbench as even as possible; the allowed inclination to the forward/backward/left/right is within 0.5°. (Measure the value using a level.)
† Procedure
1. Check all the feet are set in the standard status. (Front Foot x 1 /Rear Foot x 2)
• "Standard Status" means that all the feet are stowed fully to the end.
2. Keep pressing both the [Help] and [Source Search] buttons for five seconds.
• The Zero Point Adjustment is executed.
• When this adjustment has been successfully finished, a beep sounds once.
5.2.2 Inspection Procedure
After finishing the adjustment, check if the "Auto Keystone Correction" function works
properly.
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CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
5.2.3 CMOS Image Sensor Calibration
The procedure of the CMOS Image Sensor Calibration is described below.
† Purpose
To adjust the "Quick Setup" function, when replacing the IS Board Assy, or the Optical
Engine and MAB set.
† Setting Environment
• Use a darkroom with the environment where no external light shines on the CMOS
Image Sensor.
• Use a white matt coated screen in the size of 70 inch and more.
• Use a screen without distortion or dirt.
• No foreign materials (tape or some reflective things) within the projected image (with
Zoom Ring set to Wide most) and in the outside of 40 cm left/right and 5cm above/
below. (refer to Figure 5-1)
Screen
50mm and more
400mm and more
Projected Image
w/ Zoom Ring
set to Wide most
(Full screen)
439mm
400mm and more
585mm
50mm and more
Figure 5-1.
• Do not input any visual signal. (Adjust the projector without any signals.)
• There must be no strongly reflective things in front of the projector, such as a desk or a
fixing metal or the like. In the case that there are such things, be sure to cover them
somehow such as covering them with a blackout curtain.
• Set the projector with all the feet fully stowed onto the even workbench with no inclination (standard: allowed inclination within 2° forward/backward/Left/Right)
• Set the projector straight to the screen. (set the axis of the projectinon lens perpendicular
to the screen; allowed horizontal slant within 2°. To adjust the slant level with the projected image on the screen, adjust the difference of the length of the left side and the right
side within 5mm.)
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EMP-1825/EMP-1815/EMP-1810
• There must be over 50 cm from the floor level to the setting position of the projector.
(refer to Figure 5-2)
• The projection distance must be within 100 cm ± 2 cm. (Projection distance: the distance
between the projector and the screen.)
Screen
Measure distance
between PJ's
frontmost and screen
100cm±2cm
100cm
2cm
Figure 5-2.
† Procedure
1. Set the projector according to the requirement written above.
2. Turn on the power and wait 5minutes until the Lamp’s illumination is stabilized.
3. Adjust the focus of the projected image with the Focus Ring.
4. On the Control Panel, press both the [Help] and [QuickSetup] buttons for 5 seconds.
• A big "W (representing "Wide")" is displayed on the screen. [Pause Window 1]
Figure 5-3. Pause Window 1
5. Adjust the Zoom Ring manually to the Wide side to the end.
6. Adjust the focus of the projected image with the Focus Ring.
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EMP-1825/EMP-1815/EMP-1810
7. Press the [QuickSetup] button once.
• The calibration at the Wide position starts.
• When the calibration has been successfully finished, the image changes to a big "C (representing "Center") automatically. [Pause Window 2]
Figure 5-4. Pause Window 2
• If the Zoom Ring is not set to the end of the Wide side, the image returns to the "W"
(Pause Window 1) automatically.
• If this calibration has been failed, the [Unsuccessful Termination] window is displayed.
(refer to [Unsuccessful Termination] window (p. 7))
8. Adjust the Zoom Ring manually to the center position as shown in the figure below.
Focus Ring
W
T
Zoom Ring
Figure 5-5. The Center position of the Zoom Ring
9. Adjust the focus of the projected image with the Focus Ring.
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EMP-1825/EMP-1815/EMP-1810
10.Press the [QuickSetup] button once.
• The calibration at the Center position starts.
• When the calibration has been successfully finished, the image changes to a big "T (representing "Tele") automatically. [Pause Window 3]
Figure 5-6. Pause Window 3
• If the Zoom Ring is not set to the Center position, the image returns to the "C" (Pause
Window 2) automatically.
• If this calibration has been failed, the [Unsuccessful Termination] window is displayed.
(refer to [Unsuccessful Termination] window (p. 7))
11.Adjust the Zoom Ring manually to the Tele side to the end.
12.Adjust the focus of the projected image with the Focus Ring.
13.Press the [QuickSetup] button once.
• The calibration at the Tele position starts.
• When the calibration has been successfully finished, the [Successful Finish] window is
displayed.
• If the Zoom Ring is not set to the Tele position, the image returns to the "T" (Pause Window 3) automatically.
• If this calibration has been failed, the [Unsuccessful Termination] window is displayed.
„ [Successful Finish] window
A beep sounds and a blue image with "No siganal" message is displayed.
• Press any button to finish the calibration. (No change on the projected image.)
„ [Unsuccessful Termination] window
Three beeps sound and a red image with "No signal" message is displayed.
• Press any button to quit the calibration. ([Unsuccessful Termination] window is cleared.)
C A U T IO N
„ If the calibration fails, go back to the Step 3 and make adjustment once again.
The case that the setting environment has a problem is also presumed, check
the environment again, too.
„ In the case of [Unsuccessful Termination] or canceling, the successfully
finished data before quitting are stored.
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EMP-1825/EMP-1815/EMP-1810
5.2.4 Inspection Procedure
After finishing the adjustment, check if the "QuickSetup" function works properly.
(For the details of the procedure of "QuickSetup" refer to the Users Manual of this product.)
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Chapter 6 Appendix
EMP-1825/EMP-1815/EMP-1810
C A U T IO N
CONFIDENTIAL
The contents of this chapter are for use only by Epson Authorized Services, and
are not to be disclosed to others without the express written consent of Epson.
6.1 AS (After Service) Menu
This menu provides information and settings that are not displayed on the standard menu.
6.1.1 How To Display the AS (After Service) Menu
1. Press the [Menu] button either on the remote control or on the projector's control panel for at
least 5 seconds.
2. Within 4 seconds after pressing the [Menu] button, hit these buttons in order shown below.
[Esc] → [Esc] → [Right] → [Left]
AS Menu is displayed. (The items vary according to the input source.)
„ The video source’s case. (Component, PC, HDMI, or D input (Page 1))
XXXXXXXXXX
Input Signal
: XXXXXXXXXXXXXXXX
Frequency
: H ---.---KHz/ V ---.---Hz
Sync Polarity
: H ---/ V ---Sync Mode
: ---Detected Comp Mode : XXXX
Total Operation Time : 0H
Lamp Op. Time (C)
: 0H
(H/M/L) : 0H/ ----H/ 0H
Lamp Replacement
: 0Times
Lamp ON/Lamp OFF
: 0Times/ 0Times
Cool Down Completed : 0Times
Destination
: XXXX
Engine Type
: XXXXXX
P 0Z00023041XV111
O 693021WWHAG1
J 0Z1XV100
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Source
The last four digits show the PW firmware version.
The last four digits show the Sub-system’s firmware version.
Revision:C
EMP-1825/EMP-1815/EMP-1810
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„ S-Video/ Video’s case. (Page 1)
XXXXXXXXXXXXXX
Video Signal
: ----------Total Operation Time : 0H
Lamp Op. Time (C)
: 0H/ 0H
(H/M/L) : 0H/ -----H/ 0H
Lamp Replacement
: 0Times
Lamp ON/Lamp OFF
: 0Times/ 0Times
Cool Down Completed : 0Times
Destination
: XXXXXXXX
Engine Type
: XXXXXX
P 0Z00023041XV111
O 693021WWHAG1
J 0Z1XV100
Source
The last four digits show the PW firmware version.
The last four digits show the Sub-system’s firmware version.
„ Easy MP’s case. (Page 1)
Easy MP
Input Signal
: ---(---)
Frequency
: H ---.---kHz / V ---.---Hz
Sync Polarity
: H ---- / V ---Sync Mode
: ---Detected Comp Mode : ---Total Operation Time :
0H
Lamp Op. Time (C)
:
0H
(H/M/L) :
0H / 0H / 0H
Lamp Replacement
:
0Times
Lamp ON/LampOFF
:
0Times / 0Times
Cool Down Completed :
0Times
Destination
: XXXXXXXX
Engine Type
: XXXXXXX
P 0Z00023041XV111
O 693021WWHAG1
J 0Z1XV100
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Source
The last four digits show the PW firmware version.
The last four digits show the Sub-system’s firmware version.
Revision:C
EMP-1825/EMP-1815/EMP-1810
CONFIDENTIAL
„ Error Log Window (Page 2)
While the AS menu is displayed, the Error Log Window can be displayed by pressing the
[Right] button. To go back to the AS menu, press the [Left] button.
Error
Log
Error
Count
CD TOT (h:m:s)
(h :m:s) LOT (h:m:s)
: CF 00005 3627 00009 4657
: FN 00005 3404 00008 3534
: LC 00005 0516 00008 4246
: LF 00004 4221 00007 3451
: LF 00004 4221 00007 3451
: TH00 FN01 SE00 LE00 LF02
: ID00 LC01 EC00 CF01 AI00
POT (h:m:s) ST
00000 0223 01
00000 0001 02
00000 1441 01
00000 0000 02
00000 0000 02
RA00 RO00 II00
RS00 RP00
Terms
Last 5 error logs:
Latest on top
Error Count
Control Data 1
Control
:
Item
Control Data 2
LOT
Contents
Error Code
Total Operation Time
Lamp Operation Time
POT
Time after Lamp is ON
h: 5-digit number (00000-65535)
Over 65535: “65535” (Not cleared to “0.”)
m: 2-digit number (00-59)
s: 2-digit number (00-59)
ST
PJ (Projector)’s status
Acquired data of PWR? of the ESC/VP21 command
CD
TOT
Error Log
1C1D 73717497
Representation
Two alphabets
• The last 5 error logs are displayed (the latest on top). None is displayed if there’s no error.
• In the case of the above window, the latest error is “Cinema Filter Error” (TOT: 5 hours 36
minutes 27 seconds, LOT: 9 hours 46 minutes 57 seconds, POT: 0 hours 2 minutes 23 seconds, PJ’s status: Lamp ON).
• The 2nd latest error is “Fan Error” (TOT: 5 hours 34 minutes 4 seconds, LOT: 8 hours 35
seconds 34 minutes, POT: 0 hours 0 minutes 1 second, PJ’s status: Warming up).
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Item
TH
FN
SE
LE
LF
RA
RO
Error Count
(times)
II
ID
LC
EC
CF
AI
RS
RP
Control
Control
data 1
Control
data 2
CONFIDENTIAL
Contents
Representation
Internal overheat
Fan error
Thermistor error
Lamp burnt out
Lighting failure
Internal error (RAM)
Internal error (ROM)
2-digit number (00-99)
Internal error (I2S)
Over 99: “99”
Internal error (DR)
(Not cleared to “0.”)
Lamp cover open
Connection failure to Electrical double
layer capacitor
Cinema Filter error
Auto IRIS error
Sub system ROM error
Sub system error (PW error)
Acquired data of TEMP? of the
Thermal data of each thermistor
ESC/VP21 command
Acquired data of TEMP? of the
Voltage of each fan
ESC/VP21 command
6.1.2 Initializing (Resetting) the AS Menu Values
The operational procedures and the values of initialization of the AS Menu are shown below.
Clearing the Log
Information
Operation
Press [Right] for more
Press [Down] and
Press [Up] and [Source]
than 5 sec., then within 3
[Source] for 10 sec.
for 10 sec. during
sec. press [Select] for 2
during displaying Page 1/
Item
sec. during displaying
displaying Page 1/Page 2.
Page 2.
Page 2.
Total Operation Time No Change
Reset to 0H
No Change
Lamp Operation Time
Reset to 0H
Reset to 0H
No Change
(C/H/M/L)
Lamp ON
Reset to 1
Reset to 1
No Change
Lamp OFF
Reset to 0
Reset to 0
No Change
Add 1 to the
Lamp Replacement
Reset to 0
No Change
current value
Cool Down Complete Reset to 0
Reset to 0
No Change
Spacing
Error Log
No Change
No Change
(Status of acquiring none)
Error Count
No Change
No Change
Reset to 0
Control
No Change
No Change
No change
Type
SEIKO EPSON
Clearing the Lamp
Information
Clearing the AS
Information
6-5
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