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Acer PD726W PD726W Service Guide - Page 34

Remove Engine Module, DMD Board directly.

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7. Remove Engine Module No Procedure 1 (1) Unscrew 4 screws to remove the Engine Module. Photo (2) Take off the Mylar on the DMD Board directly. 2 Unscrew 5 screws to remove the Mylar. 3 (1) Unscrew 1 screw to remove the Color Wheel. (2) Unscrew 1 screw to remove the Photosensor Board. Note: It is suggested to use the Long Nose Pliers to fasten one side of the Color Wheel (with the photosensor Board) and unscrew 1 screw to separate the Color Wheel and Photosensor Board. Chapter 3 28

Section	Page
PD726 & PH730 Service Guide	1
Revision History	2
Copyright	3
Disclaimer	3
Conventions	4
Preface	5
Table of Contents	6
Ch1 System Introduction	7
Technical Speci.cation	7
Product Overview	9
Main Unit	9
Control Panel	10
Connection Ports	11
Connecting the Projector	12
Block Diagram	13
Ch2 Firmware & EDID Upgrade	14
Firmware Upgrade	14
Equipment Needed	14
Installation Procedure	15
DLP Composer Lite Setup Procedure	15
USB Driver Upgrade Procedure	17
Firmware Upgrade Procedure	19
EDID Upgrade	22
EDID Introduction	22
Equipment Needed	22
Setup Procedure	23
EDID Key-In Procedure	23
Ch3 Mechanical Disassembly & Reassembly	26
Equipment Needed	26
General Information	26
Mechanical Disassembly Procedure	27
1. Remove Lamp Module	27
2. Remove and disassemble Top Cover Module	28
3. Remove Main Board & Audio Board	30
4. Remove IO Cover and Side Covers (Speakers) / LVPS	31
5. Remove Thermal Switch / Light Cut / Air Duct	32
6. Remove Lamp Driver / Fan	33
7. Remove Engine Module	34
8. Remove Bottom Cover	36
Mechanical Reassembly Procedure	37
1. Assemble Bottom Cover	37
2. Assemble Engine Module	38
3. Assemble Fan / Lamp Driver	40
4. Assemble Air Duct / Light Cut / Thermal Switch	41
5. Assemble LVPS / IO Cover & Side Covers (Speakers)	42
6. Assemble Main Board & Audio Board	43
7. Assemble Top Cover Module	44
8. Assemble Lamp Module	46
Ch4 Troubleshooting & Function	47
Troubleshooting	47
Equipment Needed	47
LED Lighting Message	47
Main Procedure	48
Function Test & Alignment Procedure	50
Test Equipment	50
Test Condition	50
Guide to Entering Service Mode	50
Inspection Procedure	51
Ch5 Exploded Overview	55
EXPLODED OVERVIEW (D.C PD726)	55
ASSY ENGINE MODULE PD726	57
ASSY ENGINE BASE MODULE PD726	58
ASSY COLOR WHEEL MODULE PD726	60
ASSY OPTICAL ENGINE MODULE PD726	61
ASSY LAMP CHANGER MODULE PD726	63
ASSY TOP COVER MODULE PD726	64
ASSY BOTTOM HOUSING MODULE PD726	65
ASSY BOTTOM COVER MODULE PD726	67
ASSY LVPS MODULE PD726	68
ASSY LAMP DRIVER MODULE PD726	69
ASSY AXIAL FAN 92*25 MODULE PD726/PH730	70
ASSY BLOWER FAN 60x25 MODULE PD726	71
ASSY INTERRUPT SWITCH MODULE PD726	72
ASSY BLOWER FAN 50x20 MODULE PD726	73
ASSY LEFT COVER MODULE PD726	74
ASSY RIGHT COVER MODULE PD726	75
ASSY ROD MODULE PD726	76
ASSY RELAY LENS MODULE PD726	77
MANUAL LENS CAP MODULE PD726	78
ASSY MAIN-BD MODULE PD726	79
EXPLODED OVERVIEW D.C PH730	80
ASSY ENGINE MODULE PH730	82
ASSY ENGINE BASE MODULE PH730	83
ASSY COLOR WHEEL MODULE PH730	85
ASSY ROD MODULE PH730	86
ASSY OPTICAL ENGINE MODULE PH730	87
ASSY LAMP CHANGER MODULE PH730	89
ASSY TOP COVER MODULE PH730	90
ASSY LAMP DRIVER MODULE PH730	91
ASSY BOTTOM HOUSING MODULE PH730	92
MANUAL LENS CAP MODULE PH730	94
ASSY MAIN-BD MODULE PH730	95
ASSY RIGHT COVER MODULE PH730	96
ASSY BOTTOM COVER MODULE PH730	97
Appendix Serial Number De.nition System	98
I. Serial Number System De.nition	98
II. PCBA Code De.nition	99

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