LG 24BA750 Service Manual
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LG 24BA750 Service Manual

LG 24BA750 Service Manual

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LED MONITOR
SERVICE MANUAL
SERVICE MANUAL
MODEL :
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL70761136(2406-REV00)
P/NO :
24BA750
CONFIDENTIAL

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Summary of Contents for LG 24BA750

  • Page 1 CONFIDENTIAL LED MONITOR SERVICE MANUAL SERVICE MANUAL MODEL : 24BA750 CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : P/NO : MFL70761136(2406-REV00)

  • Page 2: Table Of Contents

    CONTENTS CONTENTS ....................2 SPECIFICATION ..................3 SAFETY PRECAUTIONS ................6 BLOCK DIAGRAM ................... 7 EXPLODED VIEW ..................8 TROUBLE SHOOTING GUIDE .............. 9...

  • Page 3: Specification

    SPECIFICATION * Provided accessory: #8/#9 , it’s different marketing request.
  • Page 5 2. Signal Timing (Resolution) 2.1. Signal (Video & Sync)

  • Page 6: Safety Precautions

    SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the 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.

  • Page 7: Block Diagram

    BLOCK DIAGRAM...

  • Page 8: Exploded View

    EXPLODED VIEW IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the 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.

  • Page 9: Trouble Shooting Guide

    TROUBLE SHOOTING GUIDE 8.a. Trouble shooting Guide : No Power Check the Replace PSU board 19 Voltage Level Check the 5V_Standby Replace 5V_STANDBY DCDC IC (LED Driver IC) Voltage Level Check the 3.3V_Scaler Replace 3.3V_Scaler DCDC IC Voltage Level Check the 0.95V_VDD Voltage Replace 0.95V_Scaler DCDC IC Check the 1.5V_DDR Voltage Replace 1.5V_DDR DCDC IC...
  • Page 10 8.b. Trouble shooting Guide : No Screen on Module Back Light On? Check the LED Driver Voltage Replace LED Driver IC Check the Panel Voltage Replace PANEL_POWER DCDC IC or Scaler IC Check FFC Cable for Damage Replace FFC Cable or open connector Replace the Module...
  • Page 11 8.c. Trouble shooting Guide : No video – HDMI Check input signal format. Is it supported? Check HDMI cable for Damage Replace HDMI cable or open connector Check HDMI connector for Replace Connector Damage or open connector Check I2C signal(5V swing) Replace Scaler IC Replace PCBA...
  • Page 12 8.c. Trouble shooting Guide: No video – DP Check input signal format. Is it supported? Check DP cable for Damage or Replace DP cable open connector Check HDMI connector for Replace Connector Damage or open connector Check AUX signal(3.3V swing) Replace Scaler IC Replace PCBA...
  • Page 13 Trouble shooting : No Video – USB-C Check input signal format. Is it supported? Check USB-C cable for Damage or Replace USB-C cable open connector Check USB-C connector for Replace Connector Damage or open connector Check PD power 20V,15V, 9V or 5V Replace PMIC Replace PCBA...

This manual is also suitable for:

27ba750-b

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