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 Condential 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 Condential 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 Condential 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 Condential 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 specication 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 Condential 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 Denition I
PCBA Code Denition 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.