LG 34BL650 Service Manual
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LG 34BL650 Service Manual

Ips led monitor
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IPS LED MONITOR
SERVICE MANUAL
CHASSIS :
MODEL :
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO :
MFL62449374(1902-REV00)
LM80B
34BL650
Internal Use Only
34BL650-B

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Summary of Contents for LG 34BL650

  • Page 1 Internal Use Only IPS LED MONITOR SERVICE MANUAL CHASSIS : LM80B MODEL : 34BL650 34BL650-B CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL62449374(1902-REV00)

  • Page 2: Table Of Contents

    SERVICING PRECAUTIONS..............4 SPECIFICATIONS..................6 TIMING CHART ..................8 ADJUSTMENT ...................11 BLOCK DIAGRAM..................13 EXPLODED VIEW..................14 ASSEMBLE AND DISASSEMBLE............15 TROUBLE SHOOTING ................20 Copyright © 2017 LG Electronics. Inc. All right reserved. - 2 - LGE Internal Use Only Only for training and service purposes...

  • Page 3: Precaution

    CAUTION Please use only a plastic screwdriver to protect yourself from shock hazard during service operation. Copyright © 2017 LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes...

  • Page 4: Servicing Precautions

    Copyright © 2017 LG Electronics. Inc. All right reserved. - 4 - LGE Internal Use Only Only for training and service purposes...
  • Page 5 CAUTION: Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures. Copyright © 2017 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...

  • Page 6: Specifications

    DC 19V 2.1A,40W Adapter Checked EAY62850015 (Adapter) Color : Black, Weight : 0.439kg±10% Specification Checked Applying module list EAJ63850701 LM340WW1-SSC1 Copyright 2017 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 6 -...
  • Page 7 7) 6500K : Color Temperature Setting is 6500 K( if it’s not special specification) 8) Clock/Clock Phase : The Best Setting 9) Another Spec.: Product Specification Standard( LG(55)G1-1034 ) 10) Cosmetic Spec. : LCD Module IIS Spec. Copyright 2017 LG Electronics. Inc. All right reserved.

  • Page 8: Timing Chart

    2720 2560 181.25 2560 x 1080 V(Lines) 59.98 1111 1080 H(Pixels) 83.915 2720 2560 228.25 2560 x 1080 V(Lines) 74.99 1119 1080 Copyright 2017 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 9 Factory support mode Horizontal frequency Vertical frequency (Preset Mode) (KHz) (Hz) 480P 31.5 576P 31.25 720P 37.5 720P 1080P 56.25 1080P 67.5 Copyright 2017 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 10 HF min (kHz) 30kHz 30kHz 90kHz 30kHz 90kHz HF max (kHz) 90kHz 90kHz 90kHz 90kHz 90kHz Clock (MHz) 240MHz 250MHz 250MHz 240MHz 240MHz Copyright 2017 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...

  • Page 11: Adjustment

    #7) you can see Service Menu at the top left side and you can get information from it. 2. How to update the F/W (refer to Next Page) #1). Connect Mstar Jig to monitor and PC. Copyright 2017 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 12 *Please make sure that File Area option is selected. #5). After ISP is completed, do factory reset in the OSD main menu. Copyright 2017 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 12 -...

  • Page 13: Block Diagram

    (IC501_OP DC Jack (19V) LED Driver (IC 504) LED Driver (IC 503) From Scaler Audio AMP (IC700) Speaker (P700) Copyright 2017 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 13 -...

  • Page 14: Exploded View

    It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright 2017 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...

  • Page 15: Assemble And Disassemble

    Disassemble method Place the monitor’s screen face down on a soft cloth. Fig.1 Fig.2 Disassemble the Stand body with pulling down the button. Copyright 2017 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 16 Fig 3 Remove the Screw(4EA) and disassemble the back cover Fig 4 Disassemble the back cover (Latch Type) . Fig 5 Remove the Speaker (2EA)、Tape(2EA). Copyright 2017 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 17 Disassemble method Fig.6 Disassemble the FFC cable (2EA), cable(2EA). Fig.7 Disassemble the Screw (2EA). Copyright 2017 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 18 Disassemble method Fig.7 Disassemble the Metal frame assy . Fig.8 Disassemble the cabinet . Copyright 2017 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 19 Disassemble method Fig.9 Disassemble the main PCB and joy stick cover . Copyright 2017 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...

  • Page 20: Trouble Shooting

    IS IC504 PIN16(3.3V) CHECK IC504 IS IC407 PIN6(1.1V) CHECK IC407 IS IC202 PIN140,PIN141 PULSE CHECK CRYSTAL X200 CHECK IC202 Copyright 2017 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 20 -...
  • Page 21 2. Trouble in IC202 14.3MHz CHECK CONNECTION CHECK IC202 PIN79,PIN80 From HDMI to IC202 SCL/SDA Trouble in cable or LCD module Copyright 2017 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 21 -...
  • Page 22 CHECK PC,PC is going to CHECK the signal input the DPM mode CHECK signal cable CHECK signal cable DET pin connection Trouble in IC202 Copyright 2017 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 22-...

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