Optoma DV20 Manuale di istruzioni

SERVICE MANUAL

Prepared: Check: Approved:

Date Revise Version Description

2010.11.25

V1.0 Initial Issue

DV20

DV20 Condential

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

Manual Version 1.0

DV20 Condential 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 Condential 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

   SerialNumberSystemDenition     XII

   PCBACodeDenition      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 Condential 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 Condential 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 Condential 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 Condential 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)

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