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LG 22LD310 Service Manual
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LG 22LD310 Service Manual

Chassis : lp92a
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LCD TV
SERVICE MANUAL
CHASSIS : LP92A
MODEL : 22LD310
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL62298301 (1002-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
22LD310-TA
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in Korea

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Summary of Contents for LG 22LD310

  • Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LCD TV SERVICE MANUAL CHASSIS : LP92A MODEL : 22LD310 22LD310-TA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL62298301 (1002-REV00) Printed in Korea...

  • Page 2: Table Of Contents

    SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION ............... 8 BLOCK DIAGRAM ................. 12 EXPLODED VIEW .................. 13 SVC. SHEET ....................Copyright © 2010 LG Electronics. Inc. All right reserved. - 2 - LGE Internal Use Only Only for training and service purposes...

  • Page 3: Product Safety

    An other abnormality exists that must be corrected before the receiver is returned to the customer. Copyright © 2010 LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes...
  • Page 4 Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed to prevent potential shock reasons prior to applying power to the Copyright © 2010 LG Electronics. Inc. All right reserved. - 4 - LGE Internal Use Only...
  • Page 5 CAUTION: Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures. Copyright © 2010 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...

  • Page 6: Specification

    Outline Dimension, Unit : mm (Maker : LGD) 116.5 x 349.5 x RGB Pixel Pitch, Unit : mm 2CCFL Backlight Assembly Coating Copyright © 2010 LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 SDTV 576P 1280*720 44.96 59.94 74.176 HDTV 720P 1280*720 60.00 74.25 HDTV 720P 1280*720 37.5 50.00 74.25 HDTV 720P Copyright © 2010 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...

  • Page 8: Adjustment Instruction

    4) Read and write bin file. Click “(1)Read” tab, and then load download file (XXXX.bin) by clicking “Read”. Filexxx.bin Filexxx.bin Filexxx.b Copyright © 2010 LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
  • Page 9 “0xAA”, we adjust once more. 4) We can confirm the ADC values from “0x06~0x0B” addresses in a page “0xBC”. Copyright © 2010 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
  • Page 10 5.2.1. Connecting diagram of equipment for measuring (For Automatic Adjustment) * LP92A Support I2C Interface For ADC/DDC Adjustment. Copyright © 2010 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
  • Page 11 Dynamic Colour : Off (If you miss the upper condition, the coordinates of W/B can be lower than the spec.) Copyright © 2010 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...

  • Page 12: Block Diagram

    BLOCK DIAGRAM Copyright © 2010 LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only Only for training and service purposes...

  • Page 13: Exploded View

    X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...
  • Page 14 2009/08/20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. INPUT Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 15 2009/08/20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LVDS/IR Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 16 2009/08/20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. HDMI/RGB Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 17 2009/08/20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. TUNER Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 18 2009/08/20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. AUDIO Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 19 MARIA8 THE CRITICAL COMPONENTS IN THE THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. SYMBOL MARK OF THE SCHEMETIC. Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 20 2009/08/20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. POWER Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 22 Audio S/W HDMI SW Analog Inputs Digital Inputs Analog Inputs Digital Inputs RS232C HDMI 1,2&3* RF/AV/COMPONENT HDMI RF/AV/COMPONENT /RGB/S-Video /RGB/S Video Option LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 23 X (Only Support AV Audio Output) Hotel Speaker Out Optional Optional HDMI Component 2EA(22”:1EA) S-Video RGB_PC Optional RS 232 RS-232 (26/32/37/42/47LG3R:Must) USB (Function) USB(D/L SVC) Tuner LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 24 Sound Mode 하위 위치함 Clear Voice Not Support Input Input List appearance in vertical box Input List appearance in vertical box Available Not Available LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 25 L ft to the Left-end & Right RED LED On PLUG USB Cable PLUG USB Cable RGB(D-Sub) Cable to VSC(H5 TV) LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 26 After finishing Installation, this window will be disappeared. 4. Execute Setup.exe in DB07-6 driver directory.(The location of directory can be different.) Double Click ! bl Cli k ! LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 27 (6-2) Click ! (6-3) Click ! (6 4) Cli k ! (6-4) Click ! (6 5) Cli k ! (6-5) Click ! LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 28 8. Make a ISP_tool.exe short cut to desktop. (8-1) Right Click ! (8-2) Fix the cursor to send(N) ! (8-3) Click “Make a short cut to desktop” ! LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 29 IC701, IC702, IC704,Q705 Part Part. Pass Pass Change IC701, IC702, IC704 Fail Check LED Assy Change LED Assy Pass Check P201 Connector LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 30 Check Output of Q705 Change Q705 Fail Pass Check LVDS Cable k LVDS C bl Change Module M d l Fail LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 31 Repeat [A], & [B] Process Check the Input/Output Re-soldering or Of IC604 Change the defect part Fail Pass Repeat [A], & [B] Process LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 32 Repeat [A], & [B] Process Pass Re-soldering or Check the Input/Output Change the defect part Of L402,L403 Fail Pass Repeat [A], & [B] Process LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 33 Change the defect part Pass Change Speaker Check The Speaker Fail Fail Pass Check The Speaker Wire Check The Speaker Wire LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

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