Acer PD721 Technical Information

Acer PD721Service GuideService CD P/N: N/AService guide files and updates are availableon the CSD web; for more information, please refer to http://cs

3 Chapter 1Product OverviewMain UnitmetI noitpircseD1lortnoClenaP2hctiwSrewoProtcennoCrewoP3stroPnoitcennoC4gniRsucoF5sneLmooZ6gniRmooZ7rekaepS8reviec

Chapter 1 4Panel ControlmetI noitpircseD1DELgninraWpmaL2DELgninraWerutarepmeT3emuloV4etuM5)ffO/nO(uneM6syeKtceleSlanoitceriDruoF7retnE8mooZ9cnys-eR01e

5 Chapter 1Connection PortsmetI noitpircseD1rotcennoCtupnI232SR2oediVroftupnIoiduA3rotcennoCtupnIoediVetisopmoC4rotcennoCtupnIoediV-S5IVDroftupnIoiduA

Chapter 1 6System Block DiagramD-SubOutputS-VideoVideoAudioDVID-SubMouseRS232InputSpeakerFront-EndBoardInter LockSwitchLVPSModuleIR ReceiverFanThermal

7 Chapter 1Main Board Block DiagramD-Sub outputAnalog InputDigital InputVideo DecoderMemoryImage ProcessMISThermal BoardLVPS ModuleDMD ModuleR.G.B.H.V

Chapter 1 8Thermal Board Block DiagramTHERMAL BOARD InterfaceFAN 1-4THERMALSWITCHTHERMALSENSORLM75MAINBOARDKEY PAD20P Connector toFormatter Board16P C

9 Chapter 1Formatter Block DiagramVCC2,VOFFSET,VBIASVERSET GENERATIONRESET ASICDMD0.7” XGADATAPATHFORMATTERDPF2ASDRAM BSDRAM AALLEGROMOTORCONTROLMICRO

Chapter 2 10Firmware UpgradeChapter 2This chapter provides the equipment needed, setup and upgrading procedure for Firmwareupgrade.Equipment Neededmet

11 Chapter 2Setup Procedure1. Connect RS232 to mini din 3P Cable to COM1 of PC and PD721.DFP PortCOM1Upgrading Procedure1. Execute “FlashUpgrader

Chapter 2 122. Click “Choose” button.123. Search <pwSDK.inf> file from PD721 F/W folder, then click “Open” button.PD721-V05-2002.08.13\PD721

II Revision HistoryPlease refer to the table below for the updates made on Acer Altos PD721 service guide.Date Chapter Updates

13 Chapter 24. Select “Serial” Port.5. Select “COM1” port.PD721-V05-2002.08.13PD721-V05-2002.08.13

Chapter 2 14126. Select Baud Rate to be “115200”, then click “Flash” button.7. Plug in the Power Cord to PD721, then press and hold on “Standby” k

15 Chapter 28. Downloading <Flasher.hex> and <Gui.hex> files.9. Keep on downloading <RomCode.hex> file.PD721-V05-2002.08.13PD721

Chapter 2 1610. After <Configdata.hex> file is downloaded, await starting up PD721 (about 2-3 seconds), then finish the upgrading proce

17 Chapter 3Machine Disassembly and ReplacementThis section provides disassembly procedures for PD721 Micro Portable XGA DLP Projector.Before you begi

Chapter 3 18Removing Top Cover Module, Keypad Board and Speaker1. Remove three screws and one long screw from Bottom Housing.2. Remove four screws bes

19 Chapter 3Keypad BoardSpeakerSpeaker Rubber LeftSpeaker Rubber Right5. Tear off Keypad Light Insulator, then remove four screws of Keypad Board and

Chapter 3 20Removing AV Module and Connector Board1. Turn over Bottom Housing and remove four screws from Bottom Housing.2. Unscrew two screws of Labe

21 Chapter 3Removing Lamp Ballast and Power Supply1. Remove two screws from LampHousing. Unplug one wire to Lamp.2. Tear of 3M Tape, unplug three wire

Chapter 3 22Removing Lamp Module and Thermal Board1. Turn over Bottom Housing and loosen two screws of Lamp Cover from Bottom Housingand take off Lamp

IIICopyrightCopyright © 2001 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, sto

23 Chapter 3Removing Fan Module and Front End Board1. Remove two screws from Fan Module and take off it.2. Unscrew four screws and one long screw of E

Chapter 3 241. Unscrew one hex screw from Engine Module.2. Unscrew three screws to remove Fan from Engine Module.3. Unscrew one screw to remove Fan.Re

25 Chapter 3Removing Engine ModuleEngine Module

Chapter 4 26TroubleshootingThis chapter provides technicians and people who have an electronic background a primarydescription about maintaining the p

27 Chapter 4Main ProcedureConnect Power cord, analogor digital signal and audiosignal, then turn power onStartIs Lamp light on ? A. PowerTroubleshooti

Chapter 4 28Power TroubleshootingIs LEDindicator OK?Lamp ReplacementCover assemblyOK?Reassembly lampReplacement CoverStartIs Fan working?NoYesNoNoYesY

29 Chapter 4Performance TroubleshootingStartHave image?Uniformity OK?Is color OK?Have garbagepattern?NoChangeM/BNoChangeDMD BoardYes NoChangeDMD Board

Chapter 4 30Function TroubleshootingColor Adjust Procedure :* Notice : PC shall run R.G.B. gray scale pattern.1. Power on. Press Up, Up, Left

31 Chapter 4Audio TroubleshootingRemote Control TroubleshootingCan hearsound?StartSound is clearwithout noise?YesYesChangeSpeakerChangeMain BoardEndCh

Chapter 4 32metI noitpircseD1 )rotareneGnrettaP&langiSoediVroloC(noituloserAGXhtiwCPMBI2)MACES/LAP/CSTN(metsys-itluMhtiwRCV3001-LCatloniMretemamor

IVConventionsThe following conventions are used in this manual:Screen messages Denotes actual messages that appear on screen.NOTE Gives bits and piece

33 Chapter 4noituloseR )zH(cnyS-V )zHK(cnyS-H ytilibitapmoC053x046075.13AGV053x046589.73AGV004x046075.13AGV004x046589.73AGV084x046065.13AGV084x046279.

Chapter 4 34noituloseR )zH(cnyS-V )zHK(cnyS-H ytilibitapmoC053x046075.13AGV053x046589.73AGV004x046075.13AGV004x046589.73AGV084x046065.13AGV084x046279.

35 Chapter 4Function Test Display PatternmetI tnetnoCtseT nrettaP noitacificepS krameR1&ycneuqerFgnikcarTeniLeniFerioM.esionyvawlausivetanimilE1er

Chapter 4 36 B. Color Pattern (Figure 5) Full White Pattern (Figure 6) Blue 180 Pattern (Figure 9)

37 Chapter 4Inspection Procedure.oN metI noitpircseD1TESERlenaprotcejorpehtnonottub"uneM"sserpesaelPesoohcnehtnoitcnuF"teseRyrotcaF&quo

Chapter 4 38.oN metI noitpircseD7yradnoceSrofkcehCsedoMyalpsiD:langistseTzH58/07@053*046-zH58/07@004*046-zH58/57/27@084*046-zH58/07@004*027-zH58/57/27

Chapter 5 39This chapter gives you FRU ( Field Replaceable Unit ) listing in global configuration of PD721.Refer to this chapter whenever ordering for

40 Chapter 5FRU ListPhoto Part Name Description P/NACCESSORYN/A REMOTE CONTROLLERACCESSORY REMOTE CONNTROLLER EZPRO 735(NEUTRAL)25.320VH.001N/A BAG W/

Chapter 5 41CABLESN/A Y CABLE MINI DIN 8P TO USB “A” TYPE/D-SUB 1.8MY CABLE MINI DIN 8P TO USB “A” TYPE/D-SUB 1.8M CARUSO50.720VH.001N/A CABLE W.A 24P

42 Chapter 5N/A ENGINE TO HEAT SINK WIRE 22AWGW.A ENGINE TO HEAT SINK EMI WIRE 22AWG EP75750.721VH.001N/A LPP TO VIDEO CABLE 1500MMCABLE RCA 1500MM LP

VPrefaceBefore using this information and the product it supports, please read the following general information.1. This Service Guide provides you wi

Chapter 5 43ZOOM RING BASE PC+ABSZOOM RING BASE PC+ABS EzPro 75542.720VH.003FOCUS RING PC+ABS CS-CT52AFOCUS RING PC+ABS CS-CT52A, 53A EP755 FOR ACER42

44 Chapter 5N/A CONNECTOR AV COVER PC+ABSCONNECTOR AV COVER PC+ABS CS-CT53A EP755 FOR ACER42.720VH.011N/A THERMAL BOARD STANDTHERMAL BOARD STAND PC+AB

Chapter 5 45N/A BACK IR COVER MODULEASSY BACK IR COVER MODULE EZPRO 75542.721VH.005N/A FRINT IR COVER MODULEASSY FRONT COVER MODULE EZPRO 75542.721VH.

46 Chapter 5N/A LVPS MODULE SUPPORT RUBBER 15*15*5.0TLVPS MODULE SUPPORT RUBBER 15*15*5.0T47.720VH.005ZOOM RING SILICONE RUBBERZOOM RING SILICONE RUBB

Chapter 5 47N/A SCREW PAN MECH M3*4 NISCREW PAN MECH M3*4 NI86.320VH.003N/A SCREW PAN MECH M2*4 BLACKSCREW PAN MECH M2*4 BLACK86.721VH.006N/A SCREW PA

VI

Table of ContentsChapter 1 System Introduction... 1Technical Specification...

1 Chapter 1Chapter 1System IntroductionTechnical SpecificationmetI noitpircseDyalpsiDPLDMTnoituloseR,)867x4201(AGXevitaNdesserpmoc)4201x0821(AGXSytili

Chapter 1 2metI noitpircseDsrotcennoCO/ItupnIretupmoC)troptupniVTDH/tnenopmoC/AGV(buS-DniP-51BDH1-rotcennoCIVD1-)IVDrof1,BUS-Dnip-51rof1(kcaJiniMoiduA