Optoma EX762 User manual
SERVICE MANUAL
Prepare: Check: Approved:
Date Revise Version Description
2010.05.24 V1.0 Initial Issue (Separate from EX615/EX612/EX540/EX762/
EX540I/EX542I/ES523ST/EW533 Service Manual V4.0)
2011.03.15 V2.0 Add EW762
EX762/EW762
Copyright March, 2011. All Rights Reserved.
Mina Amy
EX762/EW762 Condential I
Preface
This manual is applied to EX762/EW762 projection system. The manual gives you a brief
description of basic technical information to help in service and maintain the product.
Your customers will appreciate the quick response time when you immediately identify
problems that occur with our products. We expect your customers will appreciate the
service that you offer them.
This manual is for technicians and people who have an electronic background. Please
send the product back to the distributor for repairing and do not attempt to do anything that
is complex or not mentioned in the troubleshooting.
Notice: The information found in this manual is subject to change without prior notice. Any
subsequent changes made to the data herein will be incorporated in future edition.
EX762/EW762 Service Manual
Copyright Mar. 2011
All Rights Reserved
Manual Version 2.0
EX762/EW762 Condential II
EX762/EW762 Comparison List
Parts EX762 EW762
USER’S GUIDE 36.8FB01G001 36.8LM01G001
ENGINE MODULE 70.8FB22GR01 70.8LM14GR01
MAIN BOARD 80.8FB01G001 80.8LM01G001
IO COVER
MODULE 70.8EF44GR01 70.8LM16GR01
LAMP DRIVER 70.8FB21GR01 70.8LM13GR01
ROD MODULE 70.8EF42GR01 70.8LM15GR01
LAN MODULE BD 80.8EF07G001 80.8LM01G001
REMOTE 45.8EF01G001 45.8FR01G001
DMD 48.8CQ01G003 48.8EJ01G001
EX762/EW762 Condential III
Table of Content
Chapter 1 Introduction
Highlight 1-1
Compatible Mode 1-3
Chapter 2 Disassembly Process
Equipment Needed & Product Overview 2-1
Disassemble Lamp Cover Module 2-2
Disassemble Lamp Module 2-2
Disassemble Focus Ring 2-3
Disassemble Top Cover Module 2-3
Disassemble Keypad Board Module and Zoom Ring 2-4
Disassemble Top Shielding 2-5
Disassemble Main Board Module 2-5
Disassemble Daughter Board and Lan Module Board 2-8
Disassemble Engine Module 2-9
Disassemble Color Wheel Module 2-9
Disassemble DMD Chip and DMD Board 2-10
Disassemble Rod Module 2-10
Disassemble System Fan Module and Thermal Switch 2-11
Disassemble Speakers 2-12
Disassemble Blower 2-13
Disassemble Front IR Module 2-14
Disassemble LVPS Module and Interlock Switch 2-14
Disassemble Lamp Driver Module 2-15
Disassemble Security Bar Cap 2-15
Disassemble Bottom Shielding 2-16
Disassemble IO Cover 2-17
Rod Adjustment 2-18
EX762/EW762 Condential IV
Re-write Lamp Usage Hour 2-19
Chapter 3 Troubleshooting
LED Lighting Message 3-1
Main Procedure 3-2
Chapter 4 Function Test & Alignment Procedure
Test Equipment Needed 4-1
Service Mode 4-1
OSD Reset 4-1
Test Condition 4-2
Defect specication table 4-3
Test Inspection Procedure 4-3
Factory Fan RPM Reset 4-4
PC MODE 4-5
Video Performance 4-9
ADC Calibration 4-11
Optical Performance Measure 4-13
Network Function Test 4-15
Others 4-18
Chapter 5 Firmware Upgrade
Section 1: System Firmware Upgrade 5-1
Equipment Needed 5-1
DLP Composer Lite Setup Procedure 5-2
Setup Procedure 5-4
USB Driver Upgrade Procedure 5-4
Firmware Upgrade Procedure 5-5
EX762/EW762 Condential V
Section 2: 8051 Firmware Upgrade Procedure 5-8
Equipment Needed 5-8
NLINK Setup Procedure 5-9
Manley USB Driver Upgrade Procedure 5-11
8051 Firmware Upgrade Procedure 5-13
Section 3: Network Firmware Upgrade Procedure 5-15
Equipment Needed 5-15
Write Down Projector IP 5-16
Network Setting 5-17
PC Hardware Link 5-18
Chapter 6 EDID Upgrade
EDID Introduction 6-1
Equipment Needed 6-2
Setup Procedure (VGA) 6-3
EDID Key-In Procedure (VGA-1 & VGA-2) 6-4
Setup Procedure (HDMI) 6-6
EDID Key-In Procedure (HDMI) 6-7
Appendix A
Exploded Image I
Appendix B
Serial Number System Denition I
PCBA Code Denition II
EX762/EW762 1-1
Chapter 1
Introduction
No
1
2
6
1
7
11
12
4(f
16
1-1 Highlight
EX762/EW762 1-2
No
17
EX762/EW762
1-2 Compatible Mode
Computer Compatibility (Analog)
72
72
EX762/EW762
Computer Compatibility (Digital)
72
72
Note: If the Computer Compatibility supportive signal is different from User's Manual, please refer
to User's Manual.
EX762/EW762 Condential 2-1
Chapter 2
Disassembly Process
2-1 Equipment Needed & Product Overview
1. Screw Bit (+): 105
2. Screw Bit (+): 107
3. Screw Bit (-): 107
4. Hex Sleeves 5 mm
5. Tweezers
6. Projector
* Before you start: This process is protective level II. Operators should wear electrostatic chains.
* Note: - If you need to replace the Main Board, you have to record the Lamp Usage Hour.
- The disassembly process for EX762/EW762 is the same,we take EX762 as an example
here.
EX762/EW762 Condential 2-2
2-3 Disassemble Lamp
Module
1. Loosen 2 screws (as red circle) on the
Lamp Module.
2. Take off the Lamp Module.
2-2 Disassemble Lamp
Cover Module
1. Loosen 2 screws (as red circle) on the
Lamp Cover.
2. Disassemble the Lamp Cover Module.
EX762/EW762 Condential 2-3
2-4 Disassemble Focus Ring
1. Rotate the Focus Ring clockwise until
you cannot rotate any more (as red
arrow direction).
2. Pull out the Focus Ring.
Note: - When you assemble the Focus
Ring, ensure the 3 card slot (as green
square)placed in the 3 double-screw
bolt (as yellow circle) properly, and
the Focus Ring can be well adjusted.
2-5 Disassemble Top Cover
Module
1. Unscrew 2 screws (as red circle) from the
Bottom Cover.
2. Press two sides of the projector as the
blue arrows point.
3. Remove the Top Cover Module.
EX762/EW762 Condential 2-4
Note: - When you remove the Top Cover,
take care the connector (as yellow
square) of FPC cable which connect
Main Board and Keypad Board Module,
then unplug it from Keypad Board
Module.
- Avoid damaging by pulling keypad FPC
cable.
- Make sure the FPC cable plug into the
correct ports when assembling it.
2-6 Disassemble Keypad
Board Module and Zoom
Ring
1. Unscrew 4 screws (as blue circle) to
disassemble the Keypad Board Module
from the Top Cover Module.
2. Separate the Keypad from the Top
Cover Module.
3. Unscrew 3 screws (as red circle) to
disassemble the Zoom Ring.
Zoom Ring
Keypad
Keypad Board
EX762/EW762 Condential 2-5
2-8 Disassemble Main Board
Module
1. Unplug 1 connector (as green square) to
remove the FPC cable.
2. Unplug 8 connectors (as yellow square).
3. Unscrew 5 screws (as red circle) from
the Main Board Module.
2-7 Disassemble Top
Shielding
1. Tear off 2 EMI tapes (as green square).
2. Unscrew 12 screws (as red circle).
3. Disassemble the Top Shielding.
Top Shielding
FPC cable
EX762/EW762 Condential 2-6
4. Unscrew 1 screw (as blue circle) from
the IO Cover.
5. Unscrew 8 hex screws (as green circle)
from the IO Cover.
6. Unplug 1 connector (as orange square).
7. Separate the Main Board Module
and Main Board Shielding.
Note: - Make sure cables plug into the
correct ports when assembling the
unit.
Main Board Shielding
EX762/EW762 Condential 2-7
Please refer to the table as below for
details of each connector.
AG F E D C B
Item Male Connector
on Main Board The key feature Figure
A & G Speaker Compose of Red/Black Wire and
Black wire tube (2 pin)
B Lamp Driver Black wire tube (5 pin)
CSystem Fan Compose of Red/Yellow/Black
Wire (3 pin)
DPhoto Sensor Compose of Red/Black/White
Wire and Black wire tube (3 pin)
EBlower Compose of Black/Yellow/Red
Wire and Blue wire tube (3 pin)
F IR Compose of Black/Yellow/Red
Wire and Gray wire tube (3 pin)
EX762/EW762 Condential 2-8
2-9 Disassemble Daughter
Board and Lan Module
Board
1. Unscrew 2 screws (as green circle) to
disassemble the Daughter Board.
2. Unscrew 1 screw (as red circle) to
disassemble the Lan Module Board.
3. Unscrew 3 hex screws (as yellow circle)
from the Main Board Module.
Daughter Board Lan Module Board
EX762/EW762 Condential 2-9
2-10 Disassemble Engine
Module
1. Tear off the black mylar (as green square).
2. Unscrew 4 screws (as yellow circle) to
disassemble the Engine Module.
2-11 Disassemble Color
Wheel Module
1. Unscrew 2 screws (as red circle) to
disassemble the Color Wheel Module.
2. Unscrew 1 hex screw (as green circle).
3. Unscrew 1 screw (as blue circle) to
disassemble the Photo Sensor Board
from the Color Wheel Module.
Note: - Avoid touching the glass parts of
color wheel.
EX762/EW762 Condential 2-10
2-12 Disassemble DMD Chip
and DMD Board
1. Unscrew 2 screws (as red circle) to
disassemble the Heat Sink and DMD
Module.
2. Rotate the screw (as yellow circle)
clockwise to disassemble the DMD
Board and DMD Chip.
Note: - Avoid touching the DMD Chip when
you disassemble it.
- Found that the DMD Chip has scrapes
or dirt use of a magnifying glass, you
may use an electrostatic ion gun to
clean it.
- Pay attention to the xed position
when assembling the DMD Chip.
2-13 Disassemble Rod
Module
1. Unscrew 2 screws (as green circle) to
take off the Rod Spring.
2. Unscrew 1 screw (as yellow circle) to
take off the Rod Cover.
3. Remove the Rod.
Note: - Avoid touching the Rod when you
disassemble or assemble it.
- Please notice the Rod Module’s direction
when you assemble it (as picture A shown).
- Ensure left edge of Rod Module contact
with the Engine base’s blocks.
- Rod Spring must hook in the position as
picture B shown.
Rod cover
Rod spring
Rod
AB
Other manuals for EX762
2
This manual suits for next models
1
Table of contents
Other Optoma Projector manuals
Optoma
Optoma WU337 User manual
Optoma
Optoma Optoma TXR774 User manual
Optoma
Optoma EP725 User manual
Optoma
Optoma W307UST User manual
Optoma
Optoma ZK507-W User manual
Optoma
Optoma EH500 User manual
Optoma
Optoma TW610STi+ User manual
Optoma
Optoma HD20 User manual
Optoma
Optoma DC552 User manual
Optoma
Optoma UHD51A User manual
Optoma
Optoma Pico PK301+ User manual
Optoma
Optoma TW6000 User manual
Optoma
Optoma TX635-3D User manual
Optoma
Optoma EX762 User manual
Optoma
Optoma HD70 User manual
Optoma
Optoma Pico PK102 User manual
Optoma
Optoma W305ST User manual
Optoma
Optoma TX1080 User manual
Optoma
Optoma 515ST Series User manual
Optoma
Optoma EH503 User manual
