Download Print this page

Acer PH112 Service Manual

Service guide
Hide thumbs

Advertisement

Quick Links

Acer PH-112
Service Guide
Service guide files and updates are available
on the CSD web; for more information,
please refer to
http://csd.acer.com.tw
100% Recycled Paper

Advertisement

loading

  Summary of Contents for Acer PH112

  • Page 1 Acer PH-112 Service Guide Service guide files and updates are available on the CSD web; for more information, please refer to http://csd.acer.com.tw 100% Recycled Paper...
  • Page 2 Copyright Copyright © 2003 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.
  • Page 3 Conventions The following conventions are used in this manual s t i c i f c i f s i l...
  • Page 4 ACER-AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFER ENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and service of customer machines.
  • Page 5: Table Of Contents

    Table of Contents Chapter 1 System Introduction Technical Specification .......................1 Lamp Specification......................2 System Block Diagram .......................6 Optics Conceptual Drawing....................7 Chapter 2 Firmware Update Setup Tool / Equipment.......................8 Upgrading Procedure ......................8 Chapter 3 Machine Dissassembly and Replacement General Information ......................11 Disassemble Lamp Module....................12 Disassemble IO Cover &...
  • Page 6 Table of Contents Chapter 4 Trouble shooting Video Signal troubleshooting.....................31 Operation FunctionTroubleshooting..................34 Power SourceTroubleshooting..................35 Function Test and Alignment....................36 Equipment Needed....................36 Test Condition......................36 Test Display Modes and Patterns ..................37 Compatible Modes ....................37 Function Test Display Pattern..................38 Chapter 5 Connector Information Introduction...........................40 Main Board.........................
  • Page 7: Chapter 1 System Introduction

    Chapter 1 System Introduction Technical Specification Item Description Display Type Single Chip DLP Projector Lamp Type 200 W User Replaceable Lamp Brightness 1600 Lumen Contrast Ratio 2000 : 1(Full on / off) (Min) Resolution(Pixels) 854 x 480 Uniformity Optical Compensation Light Tunnel Focal Length 20.2 ~ 24.2 mm...
  • Page 8: Lamp Specification

    Lamp Specification 1.Product Scope The product is a lamp system consisting of a short arc burner in a reflector, and a lamp driver. Lamp type UHP 200W-150W 1.0 Driver type EUC 200V/01 T opValue 2. SYSTEM SPECIFICATIONS 2.1 Driver conditions See driver specifications for more information EUC 200V/01 * If the lamp voltage is below 35V continued over 90s, the driver shuts down.
  • Page 9 It is known that asymmetric cooling after switching the lamp off, can lead to ignition failure in the next attempt due to condensed mercury on 1 of the electrodes. Therefore Philips advises to build in multiple attempts (max. 5 for safety reasons) to start the lamp.
  • Page 10 3 LAMP SPECIFICATIONS 3.1 Dimensions Reflector type E19 3 Average lamp life and lumen maintenance (on test & operational conditions see 4.4 and based upon a large sample population) When driven at 200W on ballast type EUC 200V/01 and temperature conditions are fulfilled (AN 2002-002) >...
  • Page 11 4 INSTRUCTION FOR USE - To replace the lamp, the power should be switched off. - The burning position is horizontal ± 20°. - Never touch the burner or reflector mirror with bare hands. If bare hands have touched it, it should be cleaned with a lint free towel before installing the lamp. - The lamp should be operated on the lamp driver as mentioned in paragraph 1.
  • Page 12: System Block Diagram

    System Block Diagram Chapter 1...
  • Page 13: Optics Conceptual Drawing

    Optics-Conceptual Drawing Chapter 1...
  • Page 14: Setup Tool / Equipment

    Chapter 2 Firmware Upgrade This chapter provides the equipment needed, setup and upgrading procedure for Firmware upgrade. Setup Tool / Equipment 1. Computer 2. USB Cable (see right picture) 3. Power Coard Upgrading Procedure 1. Connect Download Cable to projector 2.
  • Page 15 3. Press Power and Menu button together and connect the power cord into the projector . Than release these 2 bottoms . 4. Click the Start Download button and then start to burning of program . 5. Completion of Burning than remove Power Cord and Burning Cord . Chapter 2...
  • Page 16: Chapter 3 Machine Dissassembly And Replacement

    Chapter 3 Machine Disassembly and Replacement This section provides disassembly procedures for PH112 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 electronically outlet. Moreover, when you disassemble the projector, be sure to put the screws in a safe place and separate them according to grouping.
  • Page 17: General Information

    General Information Before You Begin Before proceeding with the disassembly procedure, make sure that you do the following: 1. Turn off the power to the system and all peripherals. 2. Unplug the AC adapter and all power and signal cables from the system. 3.
  • Page 18: Disassemble Lamp Module

    Disassemble Lamp Module Loosen two screws of Lamp Cover Remove Lamp Cover Loosen two screws of Lamp Module . Grasp the lamp handle and pull out Lamp Module p.s Related notice of replace lamp pls refer to the Lamp Specification section . Note:Unplug all the cord before disaddembling the Projector.
  • Page 19: Disassemble Io Cover & Top Cover

    Disassemble IO Cover & Top Cover Loosen 4 screws of IO cover. Remove IO cover Loosen 2 screws of Back Cover P2038-1550-00 P2035-4510-99 82035-2510-00 *2 Loosen the 2 screws of Top Cover. Lift up Top Cover directly (Be careful there is a internal wire connect with the main board) 01635-B730-00 *2 01635-D360-00 *2 01635-B730-00 *2...
  • Page 20: Disassemble Speaker

    Disassemble Speaker Loosen the screws of Speaker. Life up Speaker. 01635-362 *2 02413-0016-00 02591-0014-00 Disassemble Front Cover Loosen the 2 screws of Front Cover. Lift up Front Cover directly(Be careful there are three internal wires connect with the main board) 01635-B730-00 *2 Chapter 3...
  • Page 21: Disassemble Front Fan

    Disassemble Front Fan Lift up the Front f Fan Set from front cover directly. Chapter 3...
  • Page 22: Disassemble Front Ir Board & Ir Cover

    Disassemble Front IR Board & IR Cover P3634-7650-00 P2034-4520-98 01635-3610-00 02595-0029-00 P2447-5100 Chapter 3...
  • Page 23: Disassemble Video Io

    Disassemble Video IO Loosen the screws of Back Cover Loosen back cover. Remove the Video IO. 01635-3610-00 *2 Chapter 3...
  • Page 24: Disassemble Main Board

    Disassemble Main Board Loosen the four screws of Main Board Unplug all wires on the board (Main Board PIN location of connectors pls refer to Chapter 5 ) Remove Main Board 01635-3660-00 *4 01635-3660-00 P3635-0560-00 Chapter 3...
  • Page 25: Disassemble Ballast Module & Back Ir

    Disassemble Ballast Module & Back IR Lossen the screw of Back IR board. Remove the Back IR board Lossen the six screws of Ballast Module Unplug all wires on Ballast Module (Ballast Board PIN location of connectors pls refer to Chapter 5 ) Remove the Ballast Module.
  • Page 26: Disassemble Optical Engine

    Disassemble Optical Engine Lossen the four screws of Optical Engine Remove the Optical Engine . 01635-A010-00 *4 Chapter 3...
  • Page 27: Disassemble Back Cover

    Disassemble Back Cover Loosen the screw of AC Inlet & remove the ring. Remove the Back Cover. P5844-0007 4. 01635-A080-00 3. 01635-7050-00 Chapter 3...
  • Page 28: Disassemble Back Ir Cover, Ac Outlet

    Disassemble Back IR Cover, AC Outlet Take out the AC Inlet. Take out the Back IR Cover. 02595-0028-00 P2034-4640-00 P2034-4530-98 Chapter 3...
  • Page 29: Disassemble Power Module

    Disassemble Power Module Unplug the wire. Loosen the five screws of Power Module Remove the Power Module. 02595-0063-00 01635-3610-00 *5 Chapter 3...
  • Page 30: Disassemble Mylar & Ground Plate

    Disassemble Ground Plate & Mylar Lift up the Groung Plate. Then lift up the Mylar. 3. P2038-0520-00 2. P2035-0500-00 Chapter 3...
  • Page 31: Disassemble Heatsink & Dmd Board

    Disassemble Heatsink & DMD Board Loosen the four screws of Heatsink. Tear off the EMI Pad Remove the Heatsink. (Do not Suggest to tear off Thermal Pad and DMD Pad on Heatsink unless they are damaged) Lift up the DMD Board. 83034-040 01635-C01 *4 P1638-106*2...
  • Page 32: Disassemble Dmd Assembly & Dmd

    Disassemble DMD Assembly & DMD Lift up the DMD Assembly Lift up the DMD P1636-701 02093-0007-00 right angle to right angle 02475-0003-10 DMD Assembly Chapter 3...
  • Page 33: Disassemble Thermal Board

    Disassemble Thermal Board Loosen the screw of Thermal Board Remove the Thermal Borad 01635-3530-00 P2235-0000-00 Chapter 3...
  • Page 34: Disassemble Optical Engine Fan

    Disassemble Optical Engine Fan Loosen the three screws of Fan Remove the Optical Engine Fan P1638-102 stick on top of joint and can not protrude this side 02394-0011-00 P1643-0020 P0335-101 *3 screw the two screws first Chapter 3...
  • Page 35: Chapter 4 Trouble Shooting

    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 Troubleshooing section focus on below items: Video Signal Troubleshooting Operation Function Troubleshooing Power Source Troubleshooting...
  • Page 36: Video Signal

    Video Signal Video Computer No Signal No Signal Check Check Turn on Turn on Source Source Source Source Replace Check Replace Cable Check Cable Cable Cable Change to Video Change to Computer Computer Mode Video Mode Mode Mode Input Input Change Main Change Main Board...
  • Page 37 Fail to light up No Volume Look up user Replace cable Check Check manual ,and or connect the Top cover’s cable LED indication follow indica- cable back tive action Check Speaker Check Speaker Connector Replace Lamp Lamp Become loose Connector Check Check Replace Ther-...
  • Page 38 Color Missing On Screen C/W Cable Check Cable Connector Connector Check Replace Cable Cable Check Main Change Main Board Board Change Optical Engine Chapter 4...
  • Page 39 Operation Function: Remote Control Button Failure Failure Replace cable Check Check Replace Battery or connect the Top cover’s cable Battery cable back Level Check Check Replace Remote Remote Replace Button Control Button Control Check Check Replace IR Replace Keypad Keypad Replace Main Main Board...
  • Page 40 Power Source: No Power Source Fan failure After After Turning On Turning On Check Check Replace Lamp Fan Connector Lamp Cover Cover or Become loose Connector Switch Reassembly Check Check Replace Replace Inner Inner Power Cord Power Cord Wires Wires Check Replace Check...
  • Page 41: Function Test And Alignment

    Function Test and Alignment Equipment Needed Test Condition Chapter 4...
  • Page 42: Test Display Modes And Patterns

    Test Display Modes and Patterns Compatible Modes , ) + ) - ( , ) - , ) - ) - ( , ) + Chapter 4...
  • Page 43: Function Test Display Pattern

    Function Test Display Pattern " " " " r " " " " " " " " " " " " 12 squares Pattern (Figure 1) 800 flicker Pattern (Figure 2) Chapter 4...
  • Page 44 Full Black Pattern (Figure 3) Full White Pattern (Figure 4) Black and White Word Pattern (Figure 5) 256RGB Pattern (Figure 6) Gray Pattern (Figure 7) Boundary Frame (Figure 8) Chapter 4...
  • Page 45: Chapter 5 Connector Information

    Chapter 5 Connector Information Introduction This section provides each connector location on boards, signal and function of each board. They will be useful for your detecting the defective boards. Main Board Summarize C o n n e c t o r Description C N 1 C N 2...
  • Page 46 The Locations of Connectors CN1 , CN7 : IR P I N # D e s c r i p t i o n IR 0 G N D + 3 . 3 V CN3 , CN4 , Cn5 : FAN P I N # D e s c r i p t i o n P W M...
  • Page 47 CN2 : Keypad Control P I N # D e s c r i p t i o n G N D G N D S P _ R + S P _ R + S P _ R - S P _ R - S P _ L + S P _ L +...
  • Page 48 J2 :Thermal P I N # D e s c r i p t i o n + 3 . 3 V S C L S D A G N D J3 , J15 : Video & S-Videop IN P I N # D e s c r i p t i o n C O M P V ID A G N D...
  • Page 49 CON1 : D_SUB P I N # D e s c r i p t i o n V - R e d V - G r e e n V-Blue A G N D A G N D A G N D A G N D + 5 V D S U B _ D e t e c t...
  • Page 50 J9 : Power Supply P I N # D e s c r i p t i o n + 5 V _ S T B Y G N D G N D + 5 V + 5 V G N D + 1 3 .
  • Page 51 JP4 : FirmWare Debug P I N # D e s c r i p t i o n G N D G N D T M S I T D O 1 _ O U T S Y S R S T Z T R S T Z T D I T M S 2...
  • Page 52: Power Board

    Power Board Summarize C o n n e c t o r D e s c r i p t i o n C N 1 0 1 A C Inout C N 2 0 1 + 3 8 0 V O u t p u t C N 3 0 1 DC Output The Locations of Connectors...
  • Page 53 CN201 : +380V Output P I N # D e s c r i p t i o n + 3 8 0 V G N D CN301 :DC Output P I N # D e s c r i p t i o n + 5 V _ S T B Y G N D G N D...
  • Page 54: Ballast Board

    Ballaster Board Summarize C o n n e c t o r D e s c r i p t i o n P o w e r i n p u t S C I & F l a g C o n n e c t i o n t o l a m p The Locations of Connectors X1 : Power input...
  • Page 55: Fru(Fieldreplaceable Unit) List

    For whatever reasons a part number change is made, it will not be noted on the printed Service Guide. For Acer AUTHO- RIZED SERVICE PROVIDERS, Acer office may have a DIFFERENT part number code from those given in the FRU list of this printed Service Guide.
  • Page 56: Fru List

    FRU List a l l Chapter 6...
  • Page 57 Chapter 6...
  • Page 58 i s t l n I l n I Chapter 6...
  • Page 59 a l l a l l Chapter 6...