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LG 32UN880 Service Manual
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LG 32UN880 Service Manual

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LED MONITOR
SERVICE MANUAL
CHASSIS :
MODEL :
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL69413828 (2006-REV00)
Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means),
publication, modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you
have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual.
The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service
Manual.
Copyright © 2020 LG Electronics Inc. All rights reserved. Only training and service purposes.
LM20K
32UN880
32BN88U
32UN88A
32UN880-BA
32BN88U-BA
32UN88A-WA

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Summary of Contents for LG 32UN880

  • Page 1 Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual. The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service Manual.

  • Page 2: Table Of Contents

    CONTENTS CONTENTS ....................2 SAFETY PRECAUTIONS ................ 3 SPECIFICATION ..................4 BLOCK DIAGRAM ................... 7 EXPLODED VIEW ..................8 TROUBLE SHOOTING GUIDE ..............9 - 2 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 3: Safety Precautions

    When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer. - 3 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 4: Specification

    Request to regulation team Not applied Accessory Box P/No Specification 31.5” UHD MODULE (BOE) EAJ65651301 (ZBD) Checked Applying module list MV315QUM-N20 EAJ65651302 (Non-ZBD) EAJ65651401 (Korea Market) - 4 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 5 Checked Resolution Single Recommen 3840×2160 @ 60Hz Max. 3840×2160 @ 60Hz USB –C Checked Recommen 3840×2160 @ 60Hz Input Voltage 19.5V / 10.8A Checked - 5 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 6 User Manual Temperature : 0°C ~ 40°C Checked operating Environment Humidity : Less than 80% Checked Condition Storage Temperature : -20°C ~ 60°C Checked - 6 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 7 8H / 6H / 4H / Off Checked DisplayPort Version 1.4 / 1.2 / 1.1 Checked HDMI ULTRA HD Deep Color On / Off Checked - 7 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 8 On / Off Checked OSD Size Small / Large Checked Information Checked Total Power On time, Resolution Reset to Initial Settings Yes / No Checked - 8 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 9 3840 297.00 3840 x 2160 V(Lines) 2222 2160 H(Pixels) 133.32 4000 3840 533.25 3840 x 2160 V(Lines) 2222 2160 7)  Recommended Timing  - 9 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 10 7)  Recommended Timing (HDMI2.0) , HDMI ULTRA Deep Color : ON  HDMI Video input Factory support Horizontal Vertical mode frequency frequency (Preset Mode) (KHz) (Hz) 480P 31.5 720P 1080P 67.5 2160P - 10 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 11: Block Diagram

    BLOCK DIAGRAM - 11 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 12: 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 © LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 13: Trouble Shooting Guide

    Recheck Voltage Level (10V) Check IC404 Output Replace IC404 & Voltage Level (1.1V) Recheck Replace IC407 & Check IC407 Output Recheck Voltage Level (1.8V) - 13 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 14 Replace LED Driver IC (P600/P602 - 1,2,3,4,5,6) Check Panel Power 10V (IC600) Replace IC600 & Check IC600 Output 10V Recheck Replace T-con Board or Module - 14 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 15 Damage or Open Connector Check JK100 , JK101 for Replace the Connector proper connection or Damage Check IC200 I2C Signal Replace the IC200 (#1,2,155,156) - 15 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 16 Check DP Cable for Damage or Open Connector Check JK102 for proper Replace the Connector connection or Damage Check IC200 AUX Signal Replace the IC200 (#54,55) - 16 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.

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