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Acer AT2635B Service Manual
Acer AT2635B Service Manual

Acer AT2635B Service Manual

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Acer AT2635B LCD TV
Service Guide
Service guide files and updates are available on
the ACER/CSD web. For more information,
please refer to http://csd.acer.com.tw
PRINTED IN CHINA

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Summary of Contents for Acer AT2635B

  • Page 1 Acer AT2635B LCD TV Service Guide Service guide files and updates are available on the ACER/CSD web. For more information, please refer to http://csd.acer.com.tw PRINTED IN CHINA...
  • Page 2: Revision History

    Revision History Please refer to the table below for the updates of LCD TV AT2635B service guide. Date Chapter Updates 2007/10/22 Chapter 1 ~ 3 1st edition 2007/10/31 Chapter 1 ~ 4 Add chapter 3...
  • Page 3 Copyright Copyright®2006 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...
  • Page 4 Any Acer Incorporated software described in this manual is sold or licensed “as is”. Should the programs prove defective following their purchase, the buyer (and not Acer Incorporated, its distributor, or its dealer) assumes the entire cost of all necessary servicing, repair, and any incidental or consequential damages resulting from any defect in the software.
  • Page 5: Screen Messages

    Conventions The following conventions are used in this manual. SCREEN MESSAGES Denotes actual messages that appear on screen. Gives bits and pieces of additional information related to NOTE the current topic. Alerts you to any damage that might result from doing WARNING or not doing specific actions.
  • Page 6 DIFFERENT 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 7 Chapter 1 System Specification Specification LCD Panel Max. resolution: 1366 x 768 12 CCFTs Backlight system Display area: 26 inches Display color: 16.7 M colors Input Signal: 1-ch LVDS Contrast ratio: 800:1 ( Typical ) Brightness: 500 Cd/m² ( Typical ) Response Time: 6.5 ms ( Typical ) Viewing angle: 88°...
  • Page 8 Mechanical VESA mounting holes Compatibility Multi-Sound system NICAM FM Stereo ( A2 ) Power Source Input voltage: 90 ~ 264 V, 47 ~ 63 Hz Input current: 220Vac/0.87A Power consumption: 190 Watts Stand-by: 1 Watts Max. Remote controllers Multi-function remote controller Speaker Internal speaker: 5 W x 2 stereo, volume adjustable...
  • Page 9 System Block & Wiring Diagram OUTPUT PANEL 1366x768 INPUT Bidirectional TPA3100D2 Amplifier +12V 5VSB DAC Audio R/L BUFR MT8291 ADC & DAC SCART-RGB Audio SCART-YUV Audio Single LVDS Audio IIS IO_SW2 FBx2 ARDx2 MT5131 YPbPr-SCART DEMON MT5371 YPbPr-AV3 IO_SW1 Scale Y/C1 Y/C2 TV_CVBS...
  • Page 10: Remote Control

    Remote Control Key Functions Remote Function description Remark (for R/C for Europe Key Functions cardreader) Power Power On/Off Display Display Channel and Input Source Mute Mute On/Off TV Turner SCART SCART1/SCART2 Chapter1...
  • Page 11 Composite/Component/HDMI1/HDMI2 Sleep Sleep Timeer Off 15/30/45/60/90/120 Wide Scaling Mode ( 4:3 /16:9 /Panorama /Letterbox ) Menu Open Menu or leave Menu Four way direction key Navigate up in the OSD or next (sub)page in teletext mode Navigate down in the OSD or pevious (sub) page in teletext down mode left...
  • Page 12 Temporarily holds the current teletext page if TEXT on Hold Froze the picture if TEXT off Zoom page toggle 1X/2X Size Page select by Up-arrow and Down-arrow Teletext Turn teletext mode on/off Subtitle Show subtitle on the screen Colour button to operate the teletext Colour button to operate the teletext Colour button to operate the teletext Colour button to operate the teletext...
  • Page 13: Hardware Specification And Configuration

    Hardware Specification and Configuration Electro/Optical Model AT2635B Panel specification Resolution(pixels) 1366x768 Brightness(min.) 500 cd/m² Contrast ratio(min.) 800:1(Typ.) Display color 16.7 M Viewing angle 160(H)/160(V) Response(typ.) 6.5ms Power supply Input 90-264 V, 47-63 Hz Max. power Consumption 190W Power saving Mechanical Dimensions(WxHxD mm) 692.9*531.6*201...
  • Page 14: Firmware Specifications

    Service Port ISP through D-Sub Audio system Speaker 5 W x 2 Firmware Specifications Preset Mode for VGA Input 16 factory pre-set modes for VGA inputs are saved during the manufacturing process. Please press "Volume-" + "Channel+" + "POWER" to enter the LCD TV factory mode. Preset mode Pixel Format Hor.
  • Page 15: Performance Specifications

    unintentionally entering of a power saving state during display resolution and timing mode changes. During the period of delay, the LED shall indicate green color and OSD will show “ NO VGA CONNECTION “. Transition from any power saving state to another can be instantaneous. The recovery from Off-state requires no manual power on.
  • Page 16 Display Area, Phase, Center and Tilt Display Area: 32 inches diagonal H-Phase: Less than 1.5mm V-Center: Less than 1.5mm Tilt: Less than 1.5mm, but non-active area must be larger than zero for four sides Max. Brightness The brightness should exceed 350 Cd/m while set both of contrast and brightness to max.
  • Page 17: Overall Dimensions

    Once hot plug occurs, at the very first time, the initial current should be limited at 2.3 amps or lower when power off on. Current will stay below 50m amps at AC 120 volts while power on off, then ramp up to full power ( about 2.3 amps at AC 120 volts ) within 5 seconds when power-up signal is triggered.
  • Page 18: Environmental Requirements

    Environmental Requirements This display shall meet the following environmental requirements under normal operating conditions. Operating 25° ± 5° for Purity, White Point, Mis-convergence, Luminance measurements and White uniformity measurement Operating temperature: 0°C to 35°C Operating humidity: 10 % to 90 % ( non-condensing ) Storage and Shipping Storage temperature: -20°C to 60°C...
  • Page 19: Vibration Test

    Shipping temperature: -20°C to 60°C Storage humidity: 10 % to 90 % ( non-condensing ) Shipping humidity: 10 % to 90 % ( non-condensing ) Altitude Units tested at an altitude up to 12,000 feet must operate at normal conditions without exhibiting abnormal behavior such as arcing or shutdown.
  • Page 20 might affect vibration performance, a minimum of 2 units shall be demonstrated to meet the requirements of specification. Drop Test The packaged display shall be capable of passing drop test as specified in following specification without any measurable degradation in performance or detectable mechanical or cosmetic damage. Dropping way: 1 corner, 3 edges, 6 flats Dropping Height: follow the below table...
  • Page 21 provided that the power-on Default State is that disabling writing. The serial number fields in the EDID must contain a unique identifying numbers among units of the same model. EDID Table is defined as below: For VGA input: For HDMI input (Optional) Chapter1...
  • Page 22: Machine Disassembly And Replacement

    Machine Disassembly and Replacement General Information This chapter contains step-by-step procedures on how to disassemble the AT2635B series for maintenance and troubleshooting. To disassemble the TV, you need the following tools: Wrist grounding strap and conductive mat for preventing electrostatic discharge...
  • Page 23 1. Release 2pcs screws and take off base. 2. Release 8pcs screws from rear cover. 3. Release 7pcs screws from rear cover and take off it. 4. Release 8pcs screws from joint. 5. Release 3pcs screws from shielding. 6. Release 7pcs screws from sheilding. Chapter2...
  • Page 24 7. Release 3pcs screws from Power/B and LVDs 8. Release 4pcs screws from Power/B and GND cable and disconnect the cables. cable, then take off it. 10. Release 2pcs screws from GND cable and 9. Release 7pcs screws from Main/B. take off it.
  • Page 25 15. Release 2pcs screws from IR/B. 16. Release 3pcs screws from Button/B. 18. Release 5pcs screws from panel and take off 17. Release 5pcs screws from GND cables. bezel. 19. Release 4pcs screws from right brackets and take off them. 20.
  • Page 26 21. Disconnect all cables. Chapter2...
  • Page 27: Troubleshooting

    Chapter 3 Troubleshooting Use the following procedure as a guide for Acer LCD TV AT2635B series problems. Note: The diagnostic tests are intended to test this model. Non-Acer products, prototype cards, or modified options could occur false errors and invalid system responses.
  • Page 28 TV NO PICTURE ISSUE Start Connect with AC power code and RF Upload F/W cable To switch on Power Power button LED Replace color with red Power Board Replace On/Off LED to Swap test fixture LED to switch button show red Power Board bright board...
  • Page 29 POOR PICTURE QUALITY Start Connect with AC power code and RF Upload F/W cable or other source signal Press Power On/Off Button to LED color show green Picture right Swap the test Check the LVDS Poor picture fixture cable is well Main Board Replace Poor picture...
  • Page 30 NO TV SIGNAL ISSUE Start Connect with AC power code and RF Upload F/W cable Press Power On/Off Button to LED color show green No TV signal Swap test fixture No signal Tuner Board Replace broken Main Board Replace Tuner Board Chapter3...
  • Page 31 Chapter3...
  • Page 32: Fru (Field Replaceable Unit) List

    Acer office to order FRU parts for repair and service of customer machines. Note: To scrap or to return the defective parts, you should follow the local government ordinance or regulations on how to dispose it properly, or follow the rules set by your regional Acer office on how to return it.
  • Page 33 PARTS PART NAME DESCRIPTION TVE PART NO. ACER PART NO. Accessory REMOTE 25.M6707.001 REMOTE CONTROL EURT54B009 GP DQ754B00901 BATTERY BATTERY LR03GW/2SK (ALKALINE 1.5V) GP AHDALR03006 23.M480E.002 BOARD MAIN/B FV2E M/B ASSY(FOR FV6A)AUO GP 21FV2EMB063 55.M7407.001 IO/B FV2E IO/B ASSY GP 23FV2EIB009 55.M6707.002...
  • Page 34 MISCELLANEOUS GASKET RIGHT GASKET RIGHT AU CX(GBCX6003,REV3A) GP GBCX6003015 47.M26V7.002 GASKET UP GASKET UP R/L CMO HV9(GBHV9002,REV3A) GP GBHV9002013 47.M26V7.003 47.M7407.002 GASKET TUNER GASKET 15X15 TUNER IV6(GBIV6E01,R3A)GP GBIV6E01011 SCREW SCREW SCREW M4.0*4-I(NYLOK) GP MM40040ICI1 86.M11V7.001 SCREW SCREW T3*8-B(BNI) GP MT30080BJ20 86.M08V7.007 SCREW SCREW F3.0*6-B(NI)GP...
  • Page 35: Exploded Parts List

    Exploded parts list ITEM DESCRIPTION TVE PART NO. ACER PART NO. FV2E M/B ASSY(FOR FV6A)AUO GP 21FV2EMB063 55.M7407.001 IV2E IR/B ASSY GP 23IV2EIB012 55.M6707.003 IV2 KEYPAD/B ASSY GP 23IV2EKB001 55.M6707.004 FV6E FRONT BEZEL ASSY GP 32FV6EFB006 60.M6707.002 JL9J REAR-COVER ASSY GP 37JL9RCSA01 60.M26V7.002...
  • Page 36 CABLE ASSY HV9 GND(1P/1P,2A) GP DD0HV9TH108 50.M26V7.004 GASKET RIGHT AU CX(GBCX6003,REV3A) GP GBCX6003015 47.M26V7.002 CONDUCTIVE TAPE IV6(JXIV6E01,R3A)GP JXIV6E01011 LENS IV4E(EBIV4E01,REV3A) GP EBIV4E01013 60.M6707.004 AV3 BEZEL DUMMY JL9(EBJL9002,REV3A) GP EBJL9002011 47.M6707.009 GASKET 15X15 TUNER IV6(GBIV6E01,R3A)GP GBIV6E01011 SCREW T3*12-P(BNI)(WASHER)GP MS30120PJ67 86.M6707.001 SCREW M4.0*12-R ALLEN HEADER BLACK GP MS40120R002 LVDS MYLAR IV6(FCIV6E01,R3A)GP FCIV6E01011...

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