ViewSonic PJ755D - 2600 Lumens DLP Projector Service Manual
Xga portable dlp projector
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Also See for PJ755D - 2600 Lumens DLP Projector:
- Specifications (2 pages) ,
- User manual (32 pages)
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Summary of Contents for ViewSonic PJ755D - 2600 Lumens DLP Projector
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Page 1: Service Manual
Service Manual ViewSonic PJ755D-1 Model No. VS10412 XGA Portable DLP Projector (PJ755D-1_SM Rev. 1a Nov. 2004) ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583... -
Page 2: Revision History
Further, ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or changes. - Page 3 Preface This manual is prepared for the maintenance service for PJ755D 0.7” XGA DMD Projector. Main- tenance procedures described in this manual are intended to isolate faulty parts and replace them in the field. It also aims to serve as a guide in procuring replacement parts for this product. This manual is copyrighted and all rights are reserved.
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Page 4: Table Of Contents
Table of Contents Chapter 1 Introduction Product Highlight Optical Specification Electrical Specification Mechanical Specification Environment Compatible Modes Chapter 2 Disassembly of Procedure Disassemble Lamp Module and Elevator Foot Disassemble Top Cover and Keypad Board Disassemble Main Board Module, Wind Tunnel Module and Fan Guider Module Disassemble Lamp Driver Module, LVPS Module and Axial Fan 92*25 Module... - Page 5 Chapter 6 DDC Key-in Procedure Equipment Needed Setup Procedure EDID Upgrade Procedure Appendix A Exploded Overview Appendix B 7-12 Serial Number System Definition 7-12 Reader’s Response 7-13 PJ755D...
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Page 6: Chapter 1 Introduction
Automatically save adjustments for future use Lamp life timer Stereo speaker with 2 Watt x 2 amplifier Adaptive voltage control fan speed No obvious visible color variation on the whole display image in 100% white, 50% white and pure R/G/B color. ViewSonic Corporation PJ755D... -
Page 7: Optical Specification
- NTSC - M, 4.43 MHz / 3.58 MHz - PAL - B, D, G, H, I , M , N, 60 - SECAM - B, D, G, K, K1, L - HDTV - 1080i, 720p, 576i/p, 480i/p ViewSonic Corporation PJ755D... -
Page 8: Mechanical Specification
- 33 dB(A) ( Typical, Under 23+/-2 C; normal mode ) - 30 dB(A) (Typical, Under 23+/-2 C; Econo mode ) Altitude - Operating 0~2,500 ft, for 5°C~35°C 2,500~5,000 ft, for 5°C~30°C 5,000~10,000 ft, for 5°C~25°C - Storage 0~40,000 ft ViewSonic Corporation PJ755D... -
Page 9: Compatible Modes
1-6 Compatible Modes Analog ViewSonic Corporation PJ755D... - Page 10 ViewSonic Corporation PJ755D...
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Page 12: Chapter 2 Disassembly Of Procedure
Turn the unit to the bottom side. Remove Lamp Cover and unscrew three screws to pull out Lamp Module. Lamp Cover Lamp Module Step2: Unscrew two screws to detach Elevator Foot from Bottom Housing. Lift it up and then unscrew the screw Elevator Foot ViewSonic Corporation PJ755D... -
Page 13: Disassemble Top Cover And Keypad Board
Disassemble Top Cover and Keypad Board Step1: Unscrew eight screws and then turn the unit to the top side. Step2: Disconnect two connectors to remove Top Cover. ViewSonic Corporation PJ755D... - Page 14 Step3: Unscrew four screws to remove the keypad board, keypad button, IR cover and LED lens. Keypad Button Keypad Board LED Lens IR Cover ViewSonic Corporation PJ755D...
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Page 15: Disassemble Main Board Module, Wind Tunnel Module And Fan Guider Module
Disassemble Main Board Module, Wind Tunnel Module and Fan Guider Module Step1: Unplug thirteen connectors and unscrew four screws of the main board. Step2: Unscrew six hex screws of the rear cover to remove Main Board. Main Board Module ViewSonic Corporation PJ755D... -
Page 16: Disassemble Lamp Driver Module, Lvps Module And Axial Fan 92*25 Module
Unscrew five screws to remove the wind tunnel module and fan guider module. Wind Tunnel Module Fan Guider Module Disassemble Lamp Driver Module, LVPS Module and Axial Fan 92x25 Module Step1: Unscrew six screws and unplug one wire to remove the lamp driver module. Lamp Driver Module ViewSonic Corporation PJ755D... - Page 17 Pull up LVPS Module, unplug the wire and unscrew one screw to detach EMI Ground Plate from LVPS Module. LVPS EMI Ground Plate Step4: Unscrew two screws to remove Axial Fan 92x25 Module. Axial Fan 92x25 Module ViewSonic Corporation PJ755D...
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Page 18: Disassemble Color Wheel, Photo Sensor Board, Optical Engine
Unscrew five screws to remove Color Wheel. Color Wheel and Photo Sensor Board Step2: Unscrew one screw to reomove Color Wheel and Photo Sensor Board. Photo Sensor Board Color Wheel Step3: Unscrew six screws to remove Engine Module from Bottom Housing. ViewSonic Corporation PJ755D... - Page 19 Unscrew four screws to remove Bracket Plate, Insulation Mylar, DMD Board and DMD Chip. Step7: Separate Blower Fan 60x25 Module from Optical Engine Module and then detach Blower Fan 60x25 from the Silicon Rubber. DMD Board DMD Chip Insulation Mylar Bracket Plate Blower Fan 60x25 Silicon Rubber ViewSonic Corporation PJ755D...
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Page 20: Disassemble Rear Cover, Speaker, Blower Fan 50*20, Thermal Sensor Board, Interrupt Switch Module And Bottom Cover
Step3: Unscrew six screws to remove Blower Fan 50x20, Elevator Shading Mylar and Thermal Sensor Board. Step4: Unscrew two screws to remove Interrupt Switch Module. Blower Fan 50x20 Thermal Sensor Board Elevator Shading Mylar Interrupt Switch Module ViewSonic Corporation PJ755D... - Page 21 Step5: Pull the elevator up first and then press the button to remove the elevator module. ViewSonic Corporation 2-10 PJ755D...
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Page 22: Chapter 3 Troubleshooting
Chapter 3 Troubleshooting Equipment Needed PJ755D Projector VESA VGA Cable/VESA DVI Cable PC (Personal Computer) with analog and digital signal output. PJ755D Remote Controller ViewSonic Corporation PJ755D... -
Page 23: Main Procedure
Main Procedure Description ViewSonic Corporation PJ755D... - Page 24 ViewSonic Corporation PJ755D...
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Page 26: Function Test And Alignment Procedure
About 1.5~3m for functional inspection (The prosection distance has to base on the screen size till 60 inches) 30cm for external inspection. Screen Size : 60 inches diagonal (wide) Should be run-in for 2 hours after repair. In room temperature With cycled display colors (R,G,B,White) *Note 1 ViewSonic Corporation PJ755D... -
Page 27: Test Display Modes And Pattern
Test Display Modes & Pattern 4-4.1 Compatible Modes Analog ViewSonic Corporation PJ755D... - Page 28 Digital ViewSonic Corporation PJ755D...
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Page 29: Function Test Display Pattern
4-4.2 Function Test Display Pattern PC Signal & ViewSonic Corporation PJ755D... - Page 30 Figure 2.Gray Scale Pattern ViewSonic Corporation PJ755D...
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- Page 32 Video & Audio Signal ViewSonic Corporation PJ755D...
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Page 33: Inspection Procedure
If not, please return the unit to repair area. Dead pixel (Bright pixel) Test Signal:1024 x 768 @ 75Hz Test Pattern:Full black pattern Please check and ensure the unit is under the spec. If not, please return the unit to repair area. ViewSonic Corporation PJ755D... - Page 34 Test Pattern:Boundary frame pattern Please check and ensure the unit is under the spec. (The horizontal and vertical position of image should be adjustable to be the screen frame.) If not, please return the unit to repair area. ViewSonic Corporation PJ755D...
- Page 35 If not, please return the unit to repair area. Audio Please check and ensure the function of audio is work as well. (Volume,Treble,Bass,Mute) If not, please return the unit to repair area. 4-10 ViewSonic Corporation PJ755D...
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Page 36: Firmware Upgrade Procedure
Chapter 5 Firmware Upgrade Procedure Equipment Needed Software : Hardware : Hardware Setup Procedure Connecting RS232 Cable between PC and PJ755D Projector. Connecting Power Cord. RS232 Cable Mini Din 3pin Port ViewSonic Corporation P755D... -
Page 37: Firmware Program Installation Procedure
Firmware Program Installation Procedure Step1. Execute the “ ” program. ViewSonic Corporation PJ755D... - Page 38 ViewSonic Corporation P755D...
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Page 40: Equipment Needed
Chapter 6 EDID Procedure Equipment Needed 6-1.1 Hardware 6-1.2 Software Power Adapter DFP to DVI Cable VGA Cable P/N: 47.53402.004 P/N: 42.81702.001 P/N:42.53001.051 RS-232 Cable P/N: 42.55708.001 ViewSonic Corporation PJ755D... -
Page 41: Setup Procedure
Connect P3 of the fixture with DVI Port of PJ755D by the DFP to DVI cable. Step5. Connect P4 of the fixture with COM Port of PC by the RS232 Cable. Step6. Turn on the power of the fixture. COM1 DVI VGA ViewSonic Corporation PJ755D... - Page 42 Connect P2 of the fixture with VGA Port of PJ755D by the VGA Cable. Step4. Connect P3 of the fixture with DVI Port of PJ755D by the DVI cable. Step5. Connect P1 of the fixture with COM Port of PC by the RS232 Cable. ViewSonic Corporation PJ755D...
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Page 43: Edid Upgrade Procedure
EDID Upgrade Procedure ViewSonic Corporation PJ755D... - Page 44 Note ViewSonic Corporation PJ755D...
- Page 45 Pls refer to Appendix B for S/N format. ViewSonic Corporation PJ755D...
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Page 49: Appendix A
Appendix A Exploded Overview ViewSonic Corporation PJ755D... - Page 50 ViewSonic Corporation PJ755D...
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Page 60: Appendix B
EX: PDH044200007 This label “PDH044200007” represents Worldwide Model for Projector PJ755D, “04” means the unit was made in 2004 year. “42” means the unit was made on week 42. “00007” means the sequence code of the unit. 7-12 ViewSonic Corporation PJ755D... -
Page 61: Reader's Response
Are you satisfied with the PJ755D service manual? Do you have any other opinion or suggestion about this service manual? Reader’s basic data: After your finishing this form, please send it back to ViewSonic Co. Customer Service Dept. by fax: 909-839-7943. 7-13...