Optoma DV20 Manuel d'instructions
SERVICE MANUAL
Prepared: Check: Approved:
Date Revise Version Description
2010.11.25
V1.0 Initial Issue
DV20
Copyright Nov 2010. All Rights Reserved
DV20 Condential
I
Preface
This manual is applied to DV20 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 is not mentioned in the troubleshooting.
Note: 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.
DV20 Service Manual
Copyright Nov 2010
All Rights Reserved
Manual Version 1.0
DV20 Condential II
Table of Content
Chapter 1 Introduction
Highlight 1-1
Compatible Mode 1-2
Chapter 2 Disassembly Process
Equipment Needed & Product Overview 2-1
Disassemble Top Cover Module 2-2
Disassemble Speaker and Fan 2-4
Disassemble Main Board 2-4
Disassemble Audio Board and Format Board 2-5
Disassemble Engine Module 2-5
Chapter 3 Troubleshooting
Main Procedure 3-1
Chapter 4 Function Test & Alignment Procedure
Test Equipment Needed 4-1
Service Mode 4-1
System Reset 4-1
Test Condition 4-2
Test Inspection Procedure 4-3
Power and Led indicator 4-3
PC Mode 4-4
Video Performance 4-6
i-pod and iphone function test 4-7
Optical Performance Measure 4-7
DV20 Condential III
Others 4-9
Chapter 5 Firmware Upgrade
Equipment Needed 5-1
Firmware Upgrade Procedure 5-2
Chapter 6 EDID Upgrade
EDID introduction 6-1
Appendix A
Exploded Image I
Appendix B
SerialNumberSystemDenition XII
PCBACodeDenition XIII
DV20 1-1
Chapter 1
Introduction
No
1
2
3
""
7
8
9
10
11
12
13
1-1 Highlight
DV20 1-2
1-2 Compatible Mode
Computer compatibility
Compatibility V-Sync[Hz]
DV20 Condential 2-1
Chapter 2
Disassembly Process
2-1 Equipment Needed & Product Overview
1. Screw Bit (+): No.00
2. Screw Bit (+) :107
3. Screw Bit (-) :107
4. Hex Sleeves 5mm
5. DV20 Unit
* Before you start: This process is protective level II. Operators should wear electrostatic chains.
DV20 Condential 2-2
2-2 Disassemble Top Cover
Module
1. Unscrew 8 screws.(As red circles)
2. Unplug 3 cables.(As yellow squares)
3. Unplug the M/B to DOCK Board Cable
and M/B to Touchpad Board Cable.
M/B to DOCK Board Cable M/B to Touchpad Board Cable
DV20 Condential 2-3
4. Unscrew 2 screws(as blue circles) to
disassemble the touchpad holder,keypad
board and touchpad cover.
Touchpad Holder
Keypad Board
Touchpad Cover
5. Unscrew 4 screws and disassemble the
DOCK board.(As green circles)
6. Unscrew 1 screw and disassemble the
DOCK Spring.(As yellow circle)
DOCK Board
DV20 Condential 2-4
2-3 Disassemble Speaker
and Fan
1. Tear off the Mylar.(As red square)
2. Unscrew 4 screws(as red circles)
3. Unplug one cable and take out the
Speaker.(As yellow circle)
4. Unscrew 3 screws and take out the fan
and fan duct.
Note:The fan cable should be stuffed into
the gap when assemble the fan.
Fan Duct
Fan
Fan Cable
2-4 Disassemble Main Board
1. Unplug 4 cables.
a) 40P M/B TO FORMAT/B Cable
b) 20P M/B TO FORMAT/B Cable
c) 20P M/B to Audio/B Cable
d) 50MM M/B to Audio/B Cable
2. Unscrew 7 screws and then take out the
main board.(As red circles)
ab
cd
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