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M
ANUAL
P
REFACE
This manual is prepared for the maintenance service for PV632AT 12.1" LCD Monitor.
Maintenance 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. This product may not, in whole or in
part, be copied, photocopied, translated or reduced to any electronic or machine readable form
without prior written consent except for copies retained by the purchaser for backup purpose.
This manual includes system overview, major system assembly, components' description, and
the "Troubleshooting" making explanations on how to detect errors. It also includes a flow chart for
checking or correcting faults.
No warranty or representation, either expressed or implied, is made with respect to this
documentation, its quality, performance, merchantability or fitness for particular purpose.
No event that the vendor will be liable for direct, indirect, special, incidental or
consequential damages arising out of the user or inability to use this product or documentation.
NOTICE :
The information found in this manual is subject to change without prior notice. Any
subsequent changes made to the data herein will be incorporated in further edition.
PV632AT Service Manual
Copyright March, 2001
All Rights Reserved
Manual Version 1.0
Document #554-G04-02A
P/N : 36.55404.001
PV632AT . &

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Summary of Contents for Optoma PanoView PV632AT

  • Page 1 ANUAL REFACE This manual is prepared for the maintenance service for PV632AT 12.1” LCD Monitor. Maintenance 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.
  • Page 2: Table Of Contents

    ERVICE Table of Contents Introduction 1-1 Product Highlight 1-2 Technical Specification 1-3 Environmental Requirements Mechanical Construction 2-1 Package Overview 2-2 Exploded Overview 2-3 Recommendaton Spare Parts List Procedure of Disassembly 3-1 Disassemble Stand Cover and Front Cover 3-2 Disassemble Panel and Adapter Plates 3-3 Disassemble Stand 3-4 Disassemble Main, Inverter, Control, Connector and Touch Boards The Function of Boards...
  • Page 3 ANUAL Panel Specification 6-1 General Specifications 6-2 Absolute Maximum Ratings 6-3 Optical Specifications 6-4 Display Quality 6-5 Dot Defects Function Test & Alignment Procedure 7-1 Test Equipment 7-2 Test Condition 7-3 Test Display Modes and Pattern 7-4 Function Test and Alignment Procedure 7-5 Hi-Pot &...
  • Page 4: Introduction

    ANUAL HAPTER Introduction This manual provides an integral information you need to maintain the LCD Monitor, and the manual is applied to the model of 12.1” TFT 800*600 Analog Color LCD Monitor. There are ten topics in this manual, and you can immediately identity the prob- lem through the manual.
  • Page 5: Product Highlight

    ERVICE 1-1 Product Highlight The major advanced features of this product are : 12.1” TFT color LCD panel Flexibility to adopt 12.1” panels from Toshiba/IBM Analog interface for plug and play convenience 250 cd/m higher brightness for Toshiba/150 cd/m brightness for IBM Support 800*600 SVGA resolution up to 85Hz Wide compatibility with 31-54KHz for horizontal scan Multi-function OSD user control...
  • Page 6: Technical Specification

    ANUAL 1-2 Technical Specification 1-2.1 LCD Module Toshiba LTM12C275C Screen Size 12.1” diagonal Dimension Outline 290(W)*220(H)*15(D) mm Active Area 246(W)*184.5(H) mm Technology TFT active matrix Display Pixels 800*600 Brightness 250 cd/m (typ.) Contrast Ratio 100 : 1 (min.) Number of Color 16.7 M colors Viewing Angle Horizontal : L/R : 10/20...
  • Page 7 ERVICE 1-2.2 Compatibility Input Signal Video Analog RGB, 0.7Vp-p Synchronization Separate Sync. Displayable Color 16.7 million colors simultaneous (by twobits FRC) Compatibility Range Video Bandwidth 56MHz (SVGA) Horizontal Frequency 31KHz ~ 54KHz (SVGA) Vertical Refresh 56Hz ~ 85Hz 1-2.3 Electrical Power Power Supply External AC/DC power adapter 2 pin/1 Ouput 12V/24W...
  • Page 8: Environmental Requirements

    ANUAL 1-3 Environmental Requirements 1-3.1 Temperature Operating C ~ 35 C (Neglect altitude) Non-Operating C ~ 60 C (For all altitude) 1-3.2 Humidity Operating 20% ~ 80% non-condensing Non-Operating 20% ~ 80% non-condensing 1-3.3 Altitude Operating 0 ~ +12,000 feet (3658 m) Non-Operating 0 ~ +40,000 feet (12193 m) 1-3.4...
  • Page 9 ERVICE Non-Operating Conditions : Sinusoidal Vibration : (1) 1.0g zero-to-peak. (2) 10 to 500Hz. (3) 0.5 octaves/minute in each axes. (4) One sweep is from 10 to 500 to 10Hz in each axis. Random Vibration : (1) 0.0082 g /Hz. (2) 10 to 500Hz.
  • Page 10: Mechanical Construction

    ANUAL HAPTER Mechanical Construction This section provides the package and exploded overview, replaceable parts list and recommendatiom parts list for the 12.1” LCD Monitor. You can place an order for correct parts in the recommendation parts list. PV632AT . 2-1 &...
  • Page 11: Package Overview

    ERVICE 2-1 Package Overview & 2-2 . PV632AT...
  • Page 12 ANUAL 2-1.1 Replacement Parts List i n i i n i s ' r PV632AT . 2-3 &...
  • Page 13: Exploded Overview

    ERVICE 2-2 Exploded Overview & 2-4 . PV632AT...
  • Page 14 ANUAL 2-2.1 Replacement Parts List " 1 r e t r e t l e i t 3 . r t n r e t & PV632AT . 2-5 &...
  • Page 15 ERVICE " 1 t 6 . t 6 . t 8 . t a l r t n & 2-6 . PV632AT...
  • Page 16 ANUAL 2-3 Recommendation Spare Parts List 2-3.1 Spare Parts List " 1 " 1 " " a r t n r e t Note : SW = Swap Spare Parts, CM = Consume Spare Parts. You can place an order for swap or consume spare parts to do replacement.
  • Page 17 ERVICE 2-3.2 Parts Illustration 48.53501.001 TFT LCD 12.1” 800*600 49.53101.001 Touch Panel ELO/12.1” 75.53501.403 ASSY Front Cover 49.53401.001 MISC Speaker 8V 1W 75.55401.001 ASSY Rear Cover 80.55401.021 PCBA Main Board & 2-8 . PV632AT...
  • Page 18 ANUAL 80.55402.001 PCBA Control Board 80.55403.011 PCBA CNNT Board 80.55404.001 PCBA Touch Board 80.55406.001 PCBA Inverter Board 47.55401.001 Adapter PV632AT . 2-9 &...
  • Page 19: Disassembly Procedure

    ANUAL HAPTER Disassembly Procedure This section provides disassembly procedures for 12.1” TFT 800*600 Analog Color LCD Monitor. 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.
  • Page 20: Disassemble Stand Cover And

    ERVICE 3-1 Disassemble Stand Cover and Front Cover Push the tab and remove Stand Cover. Unscrew six screws of Rear Cover. Stand Cover Rear Cover Turn the monitor over, take off Front Cover. Front Cover & 3-2 . PV632AT...
  • Page 21: Disassemble Panel And Adapter Plates

    ANUAL 3-2 Disassemble Panel and Adapter Plates Unscrew four screws of Adapter Plates and tear off EMI tape. Lift up Panel Module and unplug all the wires to remove LCD Panel Module. LCD Panel PV632AT . 3-3 &...
  • Page 22 ERVICE Unscrew two screws of two Speakers to remove Speakers from Adapter Plates. Unscrew four screws of Panel to take off Adapter Plates. Cut off the double tape around Touch Panel to separate Touch Panel from LCD Panel. Adapter Plate LCD Panel Touch Panel Adapter Plate...
  • Page 23: Disassemble Stand

    ANUAL 3-3 Disassemble Stand Take off two Hinge Caps. Unscrew four screws on Hinge to remove Stand. Rear Cover Hinge Cap Hinge Cap Stand Unscrew two screws to separate Hinge from Stand Chassis. Hinge Stand Chassis PV632AT . 3-5 &...
  • Page 24: Disassemble Main, Inverter, Control, Connector And Touch Boards

    ERVICE 3-4 Disassemble Main, Inverter, Control, Connector and Touch Boards Unscrew three screws of Inverter Board to remove Inverter Board. Unscrew four screws of Shielding Cover to remove Main Board and Cover. Unscrew two screws of Touch Board to remove Touch Board. Copper Shielding Cover Mylar...
  • Page 25 ANUAL Turn over Support Bracket and Rear Cover, then unscrew fou hex screws to remove two wires. Take off Switch. Switch Splay out Shielding Cover to remove Main Board. Main Board Shielding Cover PV632AT . 3-7 &...
  • Page 26: The Function Of Boards

    ANUAL HAPTER Function of Boards This section provides each connector location on boards, signal and function of each board. They will be useful for your detecting the defective boards. PV632AT . 4-1 &...
  • Page 27: Main Board

    ERVICE 4-1 Main Board 4-1.1 The Location of Connector 4-1.2 J3 : Inverter Connector r t n 4-1.3 J4 : Touch Power Connector & 4-2 . PV632AT...
  • Page 28 ANUAL 4-1.4 J2 : Interface Connector v i t v i t t f e t f e v i t t f e v i t t t u t t u " " + t t u " "...
  • Page 29 ERVICE 4-1.6 JP2 : LCD Panel Interface Connector i t c i t c i t c & 4-4 . PV632AT...
  • Page 30 ANUAL 4-1.7 J5 : VGA Connector l a t l a i l a i c i t PV632AT . 4-5 &...
  • Page 31: Touch Board

    ERVICE 4-2 Touch Board 4-2.1 The Location of Connector 4-2.2 JP2 : Touch Screen Connector a t l l a t i t i c i t i t i 4-2.3 JP3 : RS-232 Connector t t i & 4-6 . PV632AT...
  • Page 32: Connector Board

    ANUAL 4-3 Connector Board 4-3.1 The Location of Connector 4-3.2 JP1 : Speaker Connector t f e t i s t f e t i s 4-3.3 J3 : Audio/Power Connector v i t v i t t f e t f e v i t t f e...
  • Page 33: Control Board

    ERVICE 4-4 Control Board 4-4.1 The Location of Connector 4-4.2 J8 : Control Connector t t u t t u t f e t t u t t u & 4-8 . PV632AT...
  • Page 34: Inverter Board

    ANUAL 4-5 Inverter Board 4-5.1 The Location of Connector 4-5.2 a t l 4-5.3 a t l 4-5.4 r t n PV632AT . 4-9 &...
  • Page 35: Troubleshooting Procedure

    ANUAL HAPTER Troubleshooting Procedure 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. PV632AT .
  • Page 36: Troubleshooting

    ERVICE 5-1 Equipment Needed PV632AT PC (Personal Computer) with SVGA Card Screw Driver 5-2 Main Procedure Start Connect all of devices to PV632AT Power-on Is indicator A. Power Circuit LED light ? Troubleshooting B. Backlight Is Backlight on ? Troubleshooting Display C.
  • Page 37 ANUAL E. Audio Audio function ok ? Troubleshooting F. Touch Troubleshooting No Trouble Found PV632AT . 5-3 &...
  • Page 38 ERVICE 5-2.1 A. Power Circuit Troubleshooting Start Change AC/DC Adapter & retry power on Change Main Board & retry Change Connector Board & retry No Trouble Found & 5-4 . PV632AT...
  • Page 39 ANUAL 5-2.2 B. Backlight Troubleshooting Start Change Inveter & Retry Change Main Board & retry Change Backlight Module No Trouble Found PV632AT . 5-5 &...
  • Page 40 ERVICE 5-2.3 C. Performance Troubleshooting Start Change Is screen Change Main Board scrollig ? VGA Cable Change Change Change Is screen Inverter Main Board LCD Module flickering ? Board Is LCD Change line defective ? LCD Module Have Change Change bad uniformity ? Inverter Board LCD Module...
  • Page 41 ANUAL 5-2.4 D. Function Troubleshooting Start Change Is Control Change Control Board Menu working ? Main Board and Retry No Trouble Found PV632AT . 5-7 &...
  • Page 42 ERVICE 5-2.5 E. Audio Troubleshooting Start Make sure sound output Audio cable is ok? Change Change Have sound ? Connector Speaker Board Change Sound is broken? Speaker Volume is Change adjustable? Main Board No Trouble Found & 5-8 . PV632AT...
  • Page 43 ANUAL 5-2.6 F. Touch Troubleshooting Start Change RS232 Cable RS232 Cable connects well ? Is there any Remove Touch Driver of Touch Driver of other company in other brand computer? Change Change Touch has Re-load Touch Board Main Board response ? Touch Driver No Trouble Found PV632AT .
  • Page 44: Panel Specification

    ANUAL HAPTER Panel Specification This chapter provides the 12.1” LCD panel specification, including optical characteristics and dot defects. All information is for your reference. PV632AT . 6-1 &...
  • Page 45: General Specifications

    ERVICE 6-1 General Specifications . e t i t c i t c a r t ) t s i t c r t a . ) k i t a ) a t ) a t ) a t i l t ( ) .
  • Page 46: Optical Specifications

    ANUAL 6-3 Optical Specifications . n i C ] 0 1 a r t o i t , e t y t i , e t o t t c i t y t i o t t e t i o t t PV632AT .
  • Page 47: Display Quality

    ERVICE 6-4 Display Quality i t c i t c y t i l a t h t i i l f , k l e t i / s t n i t 6-5 Dot Defects l a t l a t r e t &...
  • Page 48: Function Test & Alignment Procedure

    ANUAL HAPTER Function Test and Alignment Procedure This chapter provides equipment, conditions, patterns, and procedure needed for Function Test and Alignment. It also includes compatible modes. All information is for your reference. PV632AT . 7-1 &...
  • Page 49: Test Equipment

    ERVICE 7-1 Test Equipment Color Video Signal & Pattern (or PC with SVGA resolution) Hi-pot & Grounding measurement Shadow gauge or Filter film of 2% and 5% 25X Monoscope or Blemish film 7-2 Test Condition Before function test and alignment, each LCD Monitor should be run-in and warmed-up for at least 12 hours with the following conditions: a).
  • Page 50: Test Display Modes And Pattern

    ANUAL 7-3 Test Display Modes and Pattern 7-3.1 Comatible Modes 7-3.2 Function Test Display Pattern e t I e t t c i f i t a & a r t / t s i t s . e l i t i l a t &...
  • Page 51 ERVICE Fine Line Morie Pattern (Figure 1) Gray Scale Pattern (Figure 2) Horizontal & Vertical Thickness Pattern (Figure 3) R. Color Pattern (Figure 4) G. Color Pattern (Figure 5) B. Color Pattern (Figure 6) & 7-4 . PV632AT...
  • Page 52: Function Test And Alignment Procedure

    ANUAL Full White Pattern (Figure 7) Dark Screen Pattern (Figure 8) 7-4 Function Test and Alignment Procedure 7-4.1 All Mode Reset Please press “ ” and “ ” functions on front bezel and trun on Power simultaneously and keep unreleased for 2 seconds. Then, the screen will show “ALL MODES RESET”. This action will allow you to erase all end-user’s setings and restore the factory defaults.
  • Page 53 ERVICE 7-4.4 Boundary Test Signal : 800*600@72Hz Test Pattern : Horizontal & Vertical Line Thickness Pattern v Check and see if the image boundary is within the screen frame. v If not, readjust by the following steps : (a) Select and enter “Position” function on OSD Main Menu. (b) Then, select and enter “Horizontal Position”...
  • Page 54: Hi-Pot & Grounding Test

    ANUAL 7-4.9 All Mode Reset After final QC step, we have to erase all saved changes again and restore the factory defaults. Please press “ ” and “ ” functions on front bezel and trun on Power simultaneously and keep unreleased for 2 seconds.
  • Page 55: Ddc Key-In Procedure

    ANUAL HAPTER DDC Key-in Procedure This chapter provides the related information about the necessary equipment, DDC Key-in procedure. The data is all for your reference. PV632AT . 8-1 &...
  • Page 56: Equipment Needed

    ERVICE 8-1 Equipment Needed PV632AT monitor Fixture for DDC Key-in RS232 Cable (P/N : 42.55708.001) Power Adapter (P/N : 47.53402.001) for Fixture VGA Cable (P/N : 42.54601.002) PC (Personal Computer) Power Adapter (P/N : 47.55401.001) for PV632AT monitor DDC Key-in Program One additional monitor for checking the program execution JP3 : to Power Adapter PV632AT monitor...
  • Page 57: Setup Procedure

    ANUAL VGA Cable (P/N : 42.54601.002) Adapter (P/N : 47.55401.001) 8-2 Setup Procedure Connect RS232 cable between P1 of Fixture and COM1 of PC. Plug Power Adapter (47.54302.001) into JP3 of Fixture. Connect VGA cable between PV632AT and P2 of Fixture. Connect PV632AT to Power Adapter.
  • Page 58 ERVICE 8-3 Upgrade Procedure Run <EDID 632A V2.EXE> program in the computer. & 8-4 . PV632AT...
  • Page 59 ANUAL Use Bar Code Reader or Keyboard to input S/N (serial number) and press “Enter” key on the keyboard to begin programming. After S/N is inputted, the successful picture is as the follows. (There is CheckSum value appearing beside VGA Success.) PV632AT .
  • Page 60: Firmware Upgrade Procedure

    ANUAL HAPTER Firmware Upgrade Procedure This Chapter provides the equipment needed, setup and upgrading procedure for Firmware upgrade. According to the instruction, you could finish FW upgrade sucessfully. PV632AT . 9-1 &...
  • Page 61: Equipment Needed

    ERVICE 9-1 Equipment Needed PV632AT monitor Fixture for Firmware Upgrade RS232 Cable (P/N : 42.55708.001) Power Adapter (P/N : 47.53402.001) for Fixture VGA Cable (P/N : 42.54601.002) PC (Personal Computer) Power Adapter (P/N : 47.55401.001) for PV632AT monitor Firmware Upgrade Program One additional monitor for checking the program execution P2 : to VGA cable PV632AT monitor...
  • Page 62: Setup Procedure

    ANUAL VGA Cable (P/N : 42.54601.002) Adapter (P/N : 47.55401.001) 9-2 Setup Procedure Connect RS232 cable between P1 of Fixture and COM1 of PC. Plug Power Adapter (47.54302.001) into JP3 of Fixture. Connect VGA cable between PV632AT and P2 of Fixture. Connect PV632AT to Power Adapter.
  • Page 63: Upgrade Procedure

    ERVICE 9-3 Upgrade Procedure Save <BIOS.EXE> and Firmware under the same folder. Run <Bios.exe> program in the computer. Select 1. Load BIN File and press “Enter” key on the keyboard, then it will show Open Files window. & 9-4 . PV632AT...
  • Page 64 ANUAL Key in file name and save path of Firmware below Open Files, then press “Enter” key. It will show Input file OK! and CheckSum value in the middle window to mean success. Select 3. Check Loader. Press “MENU” key of PV632AT monitor and power on the monitor at the same time. (If the procedure is right, the Power Indicate LED of PV632AT wouldn’t light.) Press “Enter”...
  • Page 65 ERVICE Select 2. Programming Press “MENU” key of PV632AT monitor and “Enter” key on the keyboard at the same time. (If the procedure is right, the value of Address would step up.) After finishing Firmware upgrad, check if CheckSum below Open Files is the same as the above one.
  • Page 66: Appendix

    10-1.1 Serial Number for LCD Display A BBB Y WW C D BEMO EEEE A = Optoma, B~Z = OEM Product code (ex: 554 = PV632AT) Y = Last number of the year (ex: 2000 - 0, 2001 - 1)
  • Page 67 ERVICE 10-1.2 Serial Number for PCBA Main Board L BB M Y M A1 AAAA L = LPP, M = LMT BB = Model code (ex:A4 = PV632AT..etc) M = Main board, A = A/V board, D = Driver board Last number of the year (ex: 2000 - 0, 2001 - 1) M = Month (Jan.~Sep.=1~9, Oct.~Dec.=X,Y,Z) A1 = version (A1~AZ, B1~BZ..)
  • Page 68 C. Do you have any other opinion or suggestion about this service manual? Reader’s basic data: : e l : l e : l i After your finishing this form, please send it back to Optoma Customer Service Dept. by fax: 886-3-563-5333 or E-mail to service@optoma.com.tw. Thanks :) PV632AT . 10-3 &...

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