Page 2 - Revision History
II Revision History Please refer to the table below for the updates made on Acer Altos PD721 service guide. Date Chapter Updates
Page 3 - Copyright; Disclaimer
III Copyright Copyright © 2001 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, i in any form or by any means, electronic, mechanical, magnetic, opti...
Page 4 - Conventions
IV Conventions The following conventions are used in this manual : Screen messages 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 act...
Page 5 - Preface
V 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 r...
Page 7 - Table of Contents; Chapter 1
Table of Contents Chapter 1 System Introduction........................................................................... 1 Technical Specification................................................................................................. 1 Product Overview.......................................
Page 8 - System Introduction; Technical Specification
1 Chapter 1 Chapter 1 System Introduction Technical Specification m e t I n o i t p i r c s e D y a l p s i D P L D M T n o i t u l o s e R , ) 8 6 7 x 4 2 0 1 ( A G X e v i t a N d e s s e r p m o c ) 4 2 0 1 x 0 8 2 1 ( A G X S y t il i b i t a p m o C r e t u p m o C d n a , c a M i , h s a o t n...
Page 10 - Product Overview; Main Unit
3 Chapter 1 Product Overview Main Unit m e t I n o i t p i r c s e D 1 l o r t n o C l e n a P 2 h c t i w S r e w o P r o t c e n n o C r e w o P 3 s t r o P n o i t c e n n o C 4 g n i R s u c o F 5 s n e L m o o Z 6 g n i R m o o Z 7 r e k a e p S 8 r e v i e c e R l o r t n o C e t o m e R 9 n o...
Page 11 - Panel Control
Chapter 1 4 Panel Control m e t I n o i t p i r c s e D 1 D E L g n i n r a W p m a L 2 D E L g n i n r a W e r u t a r e p m e T 3 e m u l o V 4 e t u M 5 ) f f O / n O ( u n e M 6 s y e K t c e l e S l a n o i t c e r i D r u o F 7 r e t n E 8 m o o Z 9 c n y s - e R 0 1 e c r u o S 1 1 y b d n a ...
Page 12 - Connection Ports
5 Chapter 1 Connection Ports m e t I n o i t p i r c s e D 1 r o t c e n n o C t u p n I 2 3 2 S R 2 o e d i V r o f t u p n I o i d u A 3 r o t c e n n o C t u p n I o e d i V e t i s o p m o C 4 r o t c e n n o C t u p n I o e d i V - S 5 I V D r o f t u p n I o i d u A 6 r o t c e n n o C t u p n...
Page 13 - System Block Diagram
Chapter 1 6 System Block Diagram D-Sub Output S-Video VideoAudio DVI D-Sub Mouse RS232 Input Speaker Front-End Board Inter Lock Switch LVPS Module IR Receiver Fan Thermal Board Thermal Sensor Formatter Board Module Lamp Ballast Module Keypad Photo Sensor LAMP Module Color Wheel Thermal Switch
Page 14 - ain Board Block
7 Cha pter 1 M ain Board Block Diagra m D-Sub output Analog Input Digital Input Video Decoder Memory Image Process MIS Thermal Board LVPS Module DMD Module R.G.B.H.Vsync Digital R.G.B dataH.VsyncSDASCLGCLK y (0-7)UV (0-7)GM-VHSGM-VVSGM-VPENGM-VCLK Standby out7 SecRESETMCLKDCLK KDS (0-3)KDR (0-2)ERRS...
Page 15 - Thermal Board Block; THERMAL BOARD Interface
Cha pter 1 8 Thermal Board Block Di agra m THERMAL BOARD Interface FAN 1-4 THERMAL SWITCH THERMAL SENSOR LM75 MAIN BOARD KEY PAD 20P Connector to Formatter Board 16P Connector 3P Connector *4 2P Connector 4P Connector *2 STB ECON KEY 7PIN ERR_OUT LAMPMISS POWER 15V, 5VA STANDBY ERR_OUT IR_ON
Page 16 - Formatter Block
9 Cha pter 1 Formatter Block D iagra m VCC2,VOFFSET,VBIAS VERSET GENERATION RESET ASIC DMD 0.7” XGA DATAPATH FORMATTER DPF2A SDRAM B SDRAM A ALLEGRO MOTOR CONTROL MICRO CONTROLLER CONTROL FPGA CONFIG/ SEQUENCE PROM CUST OMER INTERF ACE CONNECT OR VCC2 (DMD) VCC2 (ASIC) VOFFSET VBIAS VRESET +5V +12V ...
Page 17 - Firmware Upgrade; Chapter 2; Equipment Needed
Chapter 2 10 Firmware Upgrade Chapter 2 This chapter provides the equipment needed, setup and upgrading procedure for Firmware upgrade. Equipment Needed m e t I n o i t p i r c s e D e r a w t f o S e x a . e d o c t o o B x e h . e d o c t o o B x e h . a t a d g i f n o C x e h . i u G e x a . e d...
Page 18 - Setup Procedure; Connect RS232 to mini din 3P Cable to COM1 of PC and PD721.; Upgrading Procedure; Execute “FlashUpgrader MFC Application”.
11 Chapter 2 Setup Procedure 1. Connect RS232 to mini din 3P Cable to COM1 of PC and PD721. DFP Port COM1 Upgrading Procedure 1. Execute “FlashUpgrader MFC Application”.
Page 21 - Select Baud Rate to be “115200”, then click “Flash” button.
Chapter 2 14 1 2 6. Select Baud Rate to be “115200”, then click “Flash” button. 7. Plug in the Power Cord to PD721, then press and hold on “Standby” key on PD721 keypad (Note : The Firmware upgrade program will be stop if you havn’t hold the standby button.) PD721-V05-2002.08.13 PD721-V05-2002.08.13
Page 24 - Machine Disassembly and Replacement; separate them according to grouping.; Tool Needed; Chapter 3; General Information; Before You Begin; Turn off the power to the system and all peripherals.
17 Chapter 3 Machine Disassembly and Replacement This section provides disassembly procedures for PD721 Micro Portable XGA DLP 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 ele...
Page 25 - Removing Top Cover Module, Keypad Board and Speaker; Remove three screws and one long screw from Bottom Housing.
Chapter 3 18 Removing Top Cover Module, Keypad Board and Speaker 1. Remove three screws and one long screw from Bottom Housing. 2. Remove four screws beside Top Housing. 3. Lift up Top Housing and unplug three wires to Thermal Board, IR Cover Module and Speaker Board. Bottom Housing Top Housing IR C...
Page 27 - Removing AV Module and Connector Board; Unscrew four screws of Connector Board to remove it.
Chapter 3 20 Removing AV Module and Connector Board 1. Turn over Bottom Housing and remove four screws from Bottom Housing. 2. Unscrew two screws of Label Connector Module to remove Label Connector Module and remove two screws from Connector Cover Clamp. Take off Side Vent. Connector Cover Clamp Bot...
Page 28 - Removing Lamp Ballast and Power Supply; R e m o v e t w o s c r e w s f r o m L am p
21 Chapter 3 Removing Lamp Ballast and Power Supply 1. R e m o v e t w o s c r e w s f r o m L am p Housing. Unplug one wire to Lamp. 2. Tear of 3M Tape, unplug three wires and unscrew four screws of Ballast Bracket to remove Ballast Module. 3. Remove two screws fromPower Socket Bracket andtake off ...
Page 29 - Removing Lamp Module and Thermal Board; and take off Lamp Cover.
Chapter 3 22 Removing Lamp Module and Thermal Board 1. Turn over Bottom Housing and loosen two screws of Lamp Cover from Bottom Housing and take off Lamp Cover. 2. Loosen three screws of Lamp to remove Lamp. 3. Unplug seven cables from Thermal Board. 4. Remove one screw from Thermal Sensor Board. Un...
Page 30 - Removing Fan Module and Front End Board; Remove two screws from Fan Module and take off it.; Unscrew two screws to remove Front End Board from Engine.
23 Chapter 3 Removing Fan Module and Front End Board 1. Remove two screws from Fan Module and take off it. 2. Unscrew four screws and one long screw of Engine Module. 3. Unscrew two screws to remove Fan Module. Fan 4. Unscrew two screws to remove Front End Board from Engine. Front End Board
Page 31 - Removing Formatter Board
Chapter 3 24 1. Unscrew one hex screw from Engine Module. 2. Unscrew three screws to remove Fan from Engine Module. 3. Unscrew one screw to remove Fan. Removing Formatter Board Fan Engine Module 4. Unscrew two screws to remove Heat Sink. 5. Unscrew four screws to remove Formatter Board. 6. Unscrew t...
Page 32 - Removing Engine Module
Page 33 - Troubleshooting; Chapter 4
Chapter 4 26 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 Tr...
Page 34 - Main Procedure
27 Chapter 4 Main Procedure Connect Power cord, analogor digital signal and audiosignal, then turn power on Start Is Lamp light on ? A. Power Troubleshooting Yes No C. Function Troubleshooting Is function OK? No Is Image OK ? B. Image Performance Troubleshooting Yes No Yes No Fault Found Is Audio OK...
Page 35 - Power T
Cha pter 4 28 Power T rouble shooting Is LED indicator OK? Lamp Replacement Cover assembly OK? Reassembly lamp Replacement Cover Start Is Fan working? No Yes No No Yes Yes Yes Is Lamp lit? No Yes End Check power cord & input power voltage Supply AC Power Change DC-DC No Change Thermal BD Change ...
Page 36 - Performance Troubleshooting
29 Chapter 4 Performance Troubleshooting Start Have image? Uniformity OK? Is color OK? Have garbage pattern? No Change M/B No Change DMD Board Yes No Change DMD Board No Change Engine Module Change DMD Board Yes No Yes Yes No No Color Adjust Procedure * Note 1 Change M/B No Change DMD CHIP Change Ph...
Page 37 - Function Troubleshooting; Color Adjust Procedure :
Chapter 4 30 Function Troubleshooting Color Adjust Procedure : * Notice : PC shall run R.G.B. gray scale pattern. 1. Power on. Press Up, Up, Left button when the No Signal show on the screen.2. Choose Display Source3. Choose Color Wheel Index.4. Press Left or Right button to adjust. 4 ...
Page 38 - Audio Troubleshooting
31 Chapter 4 Audio Troubleshooting Remote Control Troubleshooting Can hear sound? Start Sound is clear without noise? Yes Yes Change Speaker Change Main Board End Change Spearker Change M/B No No No No Start End Replace the battery No Change Remote Controller Yes No Change IR Board No Change Main Bo...
Page 39 - Function Test and Alignment Procedure
Chapter 4 32 m e t I n o i t p i r c s e D 1 ) r o t a r e n e G n r e t t a P & l a n g i S o e d i V r o l o C ( n o i t u l o s e r A G X h t i w C P M B I 2 ) M A C E S / L A P / C S T N ( m e t s y s - i t l u M h t i w R C V 3 0 0 1 - L C a t l o n i M r e t e m a m o r h C 4 t o P - i H F...
Page 40 - Test Display Modes and Patterns; Compatible Modes
33 Chapter 4 n o i t u l o s e R ) z H ( c n y S - V ) z H K ( c n y S - H y t i l i b i t a p m o C 0 5 3 x 0 4 6 0 7 5 . 1 3 A G V 0 5 3 x 0 4 6 5 8 9 . 7 3 A G V 0 0 4 x 0 4 6 0 7 5 . 1 3 A G V 0 0 4 x 0 4 6 5 8 9 . 7 3 A G V 0 8 4 x 0 4 6 0 6 5 . 1 3 A G V 0 8 4 x 0 4 6 2 7 9 . 7 3 A G V 0 8 4 x...
Page 42 - Function Test Display Pattern
35 Chapter 4 Function Test Display Pattern m e t I t n e t n o C t s e T n r e t t a P n o i t a c i f i c e p S k r a m e R 1 & y c n e u q e r F g n i k c a r T e n i L e n i F e r i o M . e s i o n y v a w l a u s i v e t a n i m il E 1 e r u g i F 2 - e n t h g i r B / t s a r t n o C s s e ...
Page 44 - Inspection Procedure
37 Chapter 4 Inspection Procedure . o N m e t I n o i t p i r c s e D 1 T E S E R l e n a p r o t c e j o r p e h t n o n o t t u b " u n e M " s s e r p e s a e l P e s o o h c n e h t n o i t c n u F " t e s e R y r o t c a F " r e t n e o t s i h T . s k r o w t i f i e e s o t &#...
Page 46 - Chapter 5
Chapter 5 39 This chapter gives you FRU ( Field Replaceable Unit ) listing in global configuration of PD721. Refer to this chapter whenever ordering for parts to repair or for RMA ( Return Merchandise Authorization ). Please note that WHEN ORDERING FRU PARTS, you should check the most up-to-date inf...
Page 47 - FRU List
40 Chapter 5 FRU List Photo Part Name Description P/N ACCESSORY N/A REMOTE CONTROLLER ACCESSORY REMOTE CONNTROLLER EZPRO 735(NEUTRAL) 25.320VH.001 N/A BAG W/CUSHION INSIDE SOFT CASE SOFT CARRY BAG FOR ACER PD720 47.720VH.014 BOARD N/A PCBA THERMAL SENSOR BOARD PCBA THERMAL SENSOR BD EZPRO 730/735 ID...
