Acer PD723 Technical Information download pdf (Page 46)

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Chapter 4 40

Troubleshooting

This chapter provides technicians and people who have an electronic background a primary

description about maintaining the product. Moreover, you can get the appropriate operation to

solve some complicated problems of component repairing and professional problems.

The Troubleshooting section focus on the following precedures:

1. Power Troubleshooting

2. Performance Troubleshooting (Computer Signal)

3. Performance Troubleshooting (Video Signal)

4. Function Troubleshooting

5. Audio Troubleshooting

6. Remote Control Troubleshooting

Equipment Needed

Chapter 4

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1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 62 63

PD723 & PD725 1
Revision History 2
Copyright 3
Disclaimer 3
Conventions 4
System Introduction 7
Product Overview 8
Panel Control 9
Connection Ports 10
5 Chapter 1 11
Connecting the Projector 12
System Block Diagram 13
Firmware Upgrade 14
Installation Procedure 15
Chapter 2 10 16
EDID Upgrade 17
Setup Procedure 18
DDC Key-in Procedure 19
Chapter 2 14 20
B. Digital 21
PD723/PD725 22
081Y (PD723) / 081N (PD725) 22
Before You Begin 23
Chapter 3 18 24
Lamp Cover 24
Lamp Module 24
19 Chapter 3 25
Lift it then unscrew 25
Elevator Foot 25
Sensor Module 26
Keypad Board 27
FPC Cable 27
Chapter 3 22 28
Main Board Module 28
23 Chapter 3 29
Thermal Switch 29
Chapter 3 24 30
Wind Tunnel Module 30
Fan Guider Module 30
Lamp Driver Module 31
Chapter 3 26 32
27 Chapter 3 33
EMI Ground Plate 33
Chapter 3 28 34
Interrupt Switch Module 34
29 Chapter 3 35
Color Wheel 35
Photo Sensor Module 35
Chapter 3 30 36
Steamtight rubber 36
Axial Fan 90x25 36
31 Chapter 3 37
60x60x25 Lamp fan 37
Chapter 3 32 38
Optical Engine Module 38
Bottom Cover 38
For PD723 Use only : 39
For PD725 Use only : 40
Chapter 3 36 42
Focus Ring & Replace Ring 42
37 Chapter 3 43
Thermal Senor Board 43
Blower Fan 50x20 Module 43
Chapter 3 38 44
Rear cover 44
39 Chapter 3 45
Elevator Module 45
Troubleshooting 46
Main Procedure 47
Chapter 4 42 48
43 Chapter 4 49
Chapter 4 44 50
Function Troubleshooting 51
Audio Troubleshooting 51
Chapter 4 46 52
Equipment Needed 53
Test Condition 53
Compatible Modes 54
Analog : 55
Digital : 56
Function Test Display Pattern 57
- PC Signal 57
Chapter 4 52 58
53 Chapter 4 59
Video & Audio Signal 60
Inspection Procedure 61
Chapter 5 63

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