PD723 & PD725 Service Guide Service guide files and updates are available on the AIPG/CSD web; for more information, please refer to http://csd.acer.com.
Revision History Please refer to the table below for the updates made on PD723 & PD725 service guide.
Copyright Copyright © 2004 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of Acer Incorporated. Disclaimer The information in this guide is subject to change without notice.
Conventions The following conventions are used in this manual: IV Screen Message Denotes actual messages that appear on screen. NOTE Gives bits and pieces of additional information related to the current topic. WARNING Alerts you to any damage that might result from doing or not doing specific actions. CAUTION Gives precautionary measures to avoid possible hardware or software problems. IMPORTANT Reminds you to do specific actions relevant to the accomplishment of procedures.
Preface Before using this information and the product it supports, please read the following general information. 1. This Service Guide provides you with all technical information relating to the BASIC CONFIGURATION decided for Acer's "global" product offering. To better fit local market requirements and enhance product competitiveness, your regional office MAY have decided to extend the functionality of a machine (e.g. add-on card, modem, or extra memory capability).
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Chapter 1 System Introduction Technical Specification Item Dimensions (WxHxD) Weight Model P D 725 Inner dimension 335 x 250 x 100 (mm) P D 723 Inner dimension 330 x 269 x 100 (mm) P D 725 Approx. 8 lbs P D 723 Approx. 7.
Product Overview Main Unit Item Chapter 1 Description 1 Remote Control Receiver 2 Zoom Lens 3 Elevator Button 4 Elevator Foot 5 Focus Ring 6 Zoom Ring 7 Power Socket 8 Connection Ports 9 Control Panel 2
Panel Control Item 3 Description 1 Temp Indicator LED 2 Power Indicator LED 3 Lamp Indicator LED 4 Power / Standby 5 Source 6 Four Directional Select Keys 7 Display Mode 8 Keystone Correction 9 Re-sync 10 Menu Chapter 1
Connection Ports Item Chapter 1 Description 1 DVI-I Input Connector (PC Digital and Analog signal / HDTV / HDCP / Component Video Input) 2 VGA Connector (PC Analog Signal / HDTV / Component Video Input) 3 USB Input Connector 4 RS232 Input Connector 5 Monitor Loop-through Output Connector 6 Component Video Input Connector 7 S-Video Input Connector 8 Composite Video Input Connector 9 Audio Input Connector 10 Audio Output Connector 4
Remote Control with Mouse Function & Laser Pointer Item 5 Description 1 IR LEDS 2 Power 3 Sync 4 Keystone Correction 5 Display Format 6 Laser Button 7 Laser Pointer 8 Laser Indicator LED 9 A/V Mute 10 Freeze 11 Display Mode 12 Mouse 13 Mouse Right Click 14 Mouse Left Click 15 Page Up / Page Down 16 Page Scrolling 17 Zoom In / Zoom Out 18 Four Directional Select Keys 19 OK (Enter) 20 Source Lock 21 Menu 22 VGA Source 23 DVI-I Source 24 Component Video Source
Connecting the Projector 9 8 7 3 Item Chapter 1 Description 1 DVI to D-Sub Cable 2 VGA Cable 3 Composite Video Cable 4 3 RCA Component Cable 5 S-Video Cable 6 Audio Cable Jack / Jack 7 USB Cable 8 DVI to DVI Cable (Optional Accessory) 9 RS232 Cable (Optional Accessory) 6
System Block Diagram 7 Chapter 1
Chapter 2 Firmware Upgrade This chapter provides the equipment needed, setup and upgrading procedure for Firmware upgrade. Equipment Needed Item Description Config.hex Flasher.hex FlashUpgrader.exe Software Gui.exe Pixelware.inf Romcode.hex Power Cord Cable RS232 To Mini Din 3 Pin Hardware PC or Laptop PD723/725 Projector Setup Procedure 1. Connect RS232 Cable between PC and PD723/725 Projector.
Installation Procedure 1. Execute the “FlashUpgrader.exe” program. 2. 3. 4. Click “Choose” toget the file directory. Select file and open it. Select the Serial port in Connection field, COM1 : in COM Port field and 115200 in Baud Rate field. 1 C:\Firmware\Acer\PD723\v3.
5. Click “Flash” to start the firmware upgrade procedure and keep press the projector’s power button immediately until download “gui.hex” to 10%. C:\Firmware\Acer\PD723\v3.0\New Folder Flash C:\Firmware\Acer\PD723\v3.0\New Folder 6. After downloading all files, enter the service mode to check the F/W version. *Note Note : Chapter 2 Press “Power”, “Up”, “Down”, “Right” button, and then enter the service mode to check the F/W version.
EDID Upgrade This chapter provides the equipment needed, setup and upgrading procedure for EDID upgrade. Equipment Needed Item Description PC or Laptop (OS : Windows 98 / ME) EDID Fixture DFP to DVI Cable Power Adapter Hardware RS-232 Cable VGA Cable Power Cord DDC Driver PD723/725 EDID Fixture P/N:80.00001.001 DFP to DVI Cable P/N: 42.81702.001 VGA Cable P/N:42.53001.051 Power Adapter P/N: 47.53402.004 RS-232 Cable P/N: 42.55708.
Setup Procedure 1. Connect Power Adapter with fixture. 2. Make sure the JP1 and JP5 is close and JP2 is open. 3. Connect P2 of the fixture with VGA Port of PD723/725 by the VGA Cable. 4. Connect P3 of the fixture with DVI Port of PD723/725 by the DFP to DVI Cable. 5. Turn on the power of the fixture.
DDC Key-in Procedure A. Analog 1. 2. 3. Execute PD723 or PD725 EDID_B program. Make sure the COM port is connecting ok. Choose the “Analog” to do the Analog DDC procedure.
4. Key-in S/N into the blank beside Barcode, and then press “Enter” key on the keyboard to begin programming. 081Y25189315601 081Y (PD723) / 081N (PD725) PD723/PD725 5. After finishing the above action, “PASS” message will appear on the screen.
B. Digital 1. 2. Make sure the COM port is connecting ok. Choose the “Digital” to do the Digital DDC procedure. 081Y (PD723) / 081N (PD725) PD723/PD725 3. Key-in S/N into the blank beside Barcode, and then press “Enter” key on the keyboard to begin programming.
4. After finishing the above action, “PASS” message will appear on the screen.
Chapter 3 Machine Disassembly and Replacement This section provides disassembly procedures for PD723/725 Micro Portable XGA DMD Projector. Before you begin any of these procedures, be sure to turn off the power, computer system, and other attached devices; then disconnect the power cable from the electrical outlet. Moreover, when you disassemble the projector, be sure to put the screws in a safe place and separate them according to their category.
The Front Side The Rear Side Disassemble Lamp Module and Elevator Foot 1. Turn unit to bottom side. Remove Lamp Cover and unscrew three screws to pull out Lamp Module.
2. Unscrew two screws to detach the Elevator Foot from Bottom Housing.
Disassemble Top Cover, Front Cover, Keypad Board and IR Sensor Module 1. Unscrew eight screws and then turn the unit to the top side to lift Top Cover. 2. Unplug three wires to separate Top Cover from the main unit.
3. Unscrew 4 screws to remove Keypad and Keypad Board.
Disassemble Main Board Module and Thermal Switch 1. 2. Unplug nine connectors and unscrew four screws. Unscrew six hex screws from Rear Cover to remove Main Board.
3. Unscrew one screw to remove Thermal Switch.
Disassemble Fan Guider Module, Wind Tunnel Module, Lamp Driver Module, LVPS and Interrupt Switch Module 1. 2. Unscrew three screws to separate Fan Guider Module and Wind Tunnel Module from Bottom Housing. Unscrew two screws from Wind Tunnel Module to remove Fan Guider Module.
3. Unscrew six screws, unplug one wire and one connector to remove Lamp Driver Module.
4. Unsrew three screws and unplug one wire to remove LVPS.
5. Unscrew two screws to remove EMI Ground Plate and separate the cables.
6. Unscrew two screws to remove Interrupt Switch Module.
Disassemble Color Wheel Module, Axial Fan 90x25 Module, Lamp Fan 60x60x25 and Optical Engine Module 1. Unscrew two screws to remove Color Wheel Module.
2. Unscrew two screws to remove Axial Fan 90x25 Module.
3. 4. Unscrew two screws to remove 60x60x25 Lamp Fan. Pull two side outward to disassemble 60x60x25 Lamp Fan.
5. Unscrew four screws to remove Engine Module from Bottom Cover.
For PD723 Use only : 6. Tear off EMI tape to separate Wind Guider Cover Mylar from Engine Module. Wind guider cover mylar 7. Unscrew four screws to remove DMD Heatsink.
For PD725 Use only : 7. Unscrew four screws to remove DMD Heatsink Module. Unscrew four screws to remove DMD Heatsink Cover. Unscrew three screws to separate 45x45x9 Dish Fan from DMD Heatsink AL.
Disassemble DMD Board and DMD CHIP 1. Unscrew four screws to remove Bracket Plate, Insulation Mylar, DMD Board. Bracket Plate Insulation Mylar DMD Board 2. Separate DMD chip from Engine Module.
3. Unscrew three screws to remove Focus Ring & Replace Ring.
Disassemble Blower Fan 50x20, Thermal Sensor Board, Interrupt Switch Module, Bottom Cover and Rear Cover 1. Unscrew one screw to remove Thermal Senor Board. Thermal Senor Board 2. Unscrew three screws to remove Blower Fan 50x20 Module.
3. Unscrew one screw and separate Rear Cover from Bottom Cover by pressing four tenons.
4. Unscrew three screws and press the tenon to remove Elevator Module.
Chapter 4 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.
Main Procedure Power Troubleshooting 41 A. Is LED Indicator OK? Check the Power cord and AC power outlet. Check the Keypad cable has broken or not. Check if all the wires are well connected inside. Check the Ballast. Check the Main board. Check the Keypad board. B. Is Fan Working After Press Power/Standby Button? Check the Keypad cable has broken or not. Check if fan wire is well connected. Check the Thermal board. Check the Main board. Check the Fan. C.
Performance Troubleshooting (Computer Signal) Chapter 4 A. Have Image? Ensure the Signal cable and Source work as well. Check that can OSD Menu show on the screen. Check the Main board. Check the DMD board. B. Have Garbage Pattern? Ensure the Signal cable and Source work as well. Check the Main board. Check the DMD board. C. Uniformity OK? Ensure the Projection screen without dirty. Ensure the Projection lens is clean. Ensure the Brightness is within spec.
G. Have Line Bar? Adjust the frequency selection in OSD Menu. Press the Menu button to check that have Line bar show on the OSD Menu. (Check the DMD chip and DMD board. If the Line bar also show on the OSD Menu) Ensure that there is no dust on the DMD Contact housing module. Re-assembly for DMD module. Check the Main board. H. Have Noise? Ensure the Signal cable and Source is work as well. Adjust the Tracking selection in OSD Menu.
Chapter 4 C. Is Color OK? Do the “Factory Reset” of the engineering mode. Ensure the signal cable work as well. Check the color temperature setting of OSD menu. (Check the main board if the setting of color temperature is under default) Check the color setting of OSD menu. Ex : “Saturation”, “Tint” and “Sharpness” setting of OSD menu. D. Is Image Flicker? Ensure the signal cable work as well.
Function Troubleshooting A. OSD Does Not Show up. Check the Keypad cable and ensure there is no broken issue on the cable. Use Keypad to test again. (Replace the Keypad board if the Unit works fine with the new Keypad board.) Use the Remote control for the OSD function test. (Check the Keypad board and Keypad cable if the Remote control works as well) Check the Main board. B. Function Cannot Be Adjust. Check the Keypad cable and ensure there is no broken issue on the cable. Use Keypad to test again.
Remote Control Troubleshooting A. Chapter 4 Remote Controller No Function. Check the Laser function of Remote controller. (Replace the battery if there is no Laser output from the Remote controller.) Use a known Remote controller for the function test. (Replace the Remote controller if the new Remote controller works fine with the Unit.) Check the Main board if the Unit works fine with a known good Remote controller.
Function Test and Alignment Procedure Equipment Needed Item Description 1 IBM PC with XGA resolution (Color Video Signal & Pattern Generator) 2 DVD player with component video (Y, Pb, Pr) and Multi-system (NTSC / PAL / SECAM) 3 HDTV Tuner or Source (480i/p, 576i/p, 720p, 1080i) 4 Minolta CL-100 5 Quantum Date 802B or Chorma 2327 Test Condition Item Description 1 Circumstance Brightness : 1.) Dark room less than 10 lux for functional inspection. 2.
Test Display Modes and Patterns Compatible Modes Analog : Chapter 4 Compatibility Resolution V-Sync(Hz ) H-Sync(KHz ) VGA 640 x 350 70 31.5 VGA 640 x 350 85 37.9 VGA 640 x 400 85 37.9 VGA 640 x 480 60 31.5 VGA 640 x 480 72 37.9 VGA 640 x 480 75 37.5 VGA 640 x 480 85 43.3 VGA 720 x 400 70 31.5 VGA 720 x 400 85 37.9 SVGA 800 x 600 56 35.2 SVGA 800 x 600 60 37.9 SVGA 800 x 600 72 48.1 SVGA 800 x 600 75 46.9 SVGA 800 x 600 85 53.
Analog : 49 Compatibility Resolution V-Sync(Hz ) H-Sync(KHz ) MAC 19" 1024 x 768 75 60.24 MAC 1152 x 870 75.06 68.68 MAC G4 640 x 480 60 31.35 MAC G4 640 x 480 120 68.03 MAC G4 1024 x 768 120 97.09 i MAC DV 640 x 480 117 60 i MAC DV 800 x 600 95 60 i MAC DV 1024 x 768 75 60 i MAC DV 1152 x 870 75 68.49 i MAC DV 1280 x 960 75 75 i MAC DV 1280 x 1024 85 91.
Digital : Chapter 4 Compatibility Resolution V-Sync(Hz ) H-Sync(KHz ) VGA 640 x 350 70 31.5 VGA 640 x 350 85 37.9 VGA 640 x 400 85 37.9 VGA 640 x 480 60 31.5 VGA 640 x 480 72 37.9 VGA 640 x 480 75 37.5 VGA 640 x 480 85 43.3 VGA 720 x 400 70 31.5 VGA 720 x 400 85 37.9 SVGA 800 x 600 56 35.2 SVGA 800 x 600 60 37.9 SVGA 800 x 600 72 48.1 SVGA 800 x 600 75 46.9 SVGA 800 x 600 85 53.7 XGA 1024 x 768 60 48.4 XGA 1024 x 768 70 56.
Function Test Display Pattern - PC Signal Item Pattern Fine Line Moire Specification Eliminate visual wavy noise by Rsync, Frequency or Tracking selection. Remark 1 Frequency & Tracking 2 32 Gray Scale / Gray level should be Contrast/Brightne64 RGBW distinguishable and without color ss abnormal issue. scale Figure 2,3 3 R, G, B and White R, G, B and Color White Color Performance Each R, G, B color should be normal without color abnormal issue.
Chapter 4 52
53 Chapter 4
Video & Audio Signal Item Test Content 1 Composite Video The input signal has to display without color abnormal. 2 S-Video The input signal has to display without color abnormal 3 Component Video The input signal has to display without color abnormal. 4 HDTV The input signal has to display without color abnormal. 5 Audio The audio should be output without noise. The audio selection of OSD should be functionally.
Inspection Procedure N o. Item Description 1 Elevator Function 1.) Please check and ensure the function of elevator is work as well. 2.) If not, please return the unit to repair area. 2 Keypad Function (Including Remote Control) 1.) Please check and ensure the control function of keypad is work as well. 2.) If not, please return the unit to repair area. Clock and Clock phase - Test Signal:1024 x 768 @ 75Hz - Test Pattern:Fine Line Moire Pattern 1.
N o. 8 9 10 11 Item Description Blemish (Bright) - Test Signal:1024 x 768 @ 75Hz - Test Pattern:Full black and Gray 30 patterns 1.) Please check and ensure the unit is under the spec. (The bright blemish should not be able to see under Gray 30 pattern) 2.) If not, please return the unit to repair area. Blemish (Dark) - Test Signal:1024 x 768 @ 75Hz - Test Pattern:Full white and Blue 60 patterns 1.) Please check and ensure the unit is under the spec.
Chapter 5 FRU (Field Replaceable Unit) List This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of PD723 & PD 725. Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). IMPORTANT: Please note WHEN ORDERING FRU PARTS, that you should check the most up-to-date information available on your regional web or channel. For whatever reasons a part number change is made, it will not be noted in the printed Service Guide.
