LG 24LM530S-PU User Manual

P/NO :
CHASSIS :
MODEL :
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
SERVICE MANUAL
Copyright © 2020 LG Electronics Inc. All rights reserved. Only training and service purposes.
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.
P/NO : MFL70446513 (2003-REV00)
24LM530S 24LM530S-PU
LB70B
LED TV

LG 24LM530S-PU Specifications

General

Brand	LG
Model	24LM530S-PU
Category	LED TV
Language	English

Summary

Safety Precautions

Important Safety Notice

Key safety warnings and precautions for servicing the chassis.

General Servicing Guidance

AC Leakage Current Checks

Servicing Precautions

General Servicing Precautions

Essential precautions before and during receiver servicing operations.

Electrostatic Discharge (ESD) Prevention

Component Replacement Procedures

Software Update Procedure

Trouble Shooting Guide Overview

Video Error Troubleshooting: No Video/Normal Audio

No Video, Normal Audio Diagnostics

Diagnostic steps for issues with no video but normal audio.

Video Error Troubleshooting: No Video/No Audio

No Video, No Audio Diagnostics

Troubleshooting guide for cases with no video and no audio.

Video Error Troubleshooting: Tuning Failures

Tuning Failures and Picture Freezing Resolution

Steps to diagnose and fix tuning failures or frozen images.

Video Error Troubleshooting: Color Issues

Color Error Diagnosis and Resolution

Procedure to identify and resolve color display issues.

Video Error Troubleshooting: Display Artifacts

Display Artifacts and External Input Color Resolution

Troubleshooting for bars, spots, and external device color problems.

Power Error Troubleshooting: No Power

No Power Issue Diagnosis and Resolution

Diagnostic steps for when the TV does not turn on.

Power Error Troubleshooting: Intermittent Power

Intermittent Power Cycling Resolution

Troubleshooting for unexpected power cycling or auto turn-off.

Audio Error Troubleshooting: No Audio

No Audio with Normal Video Diagnostics

Steps to diagnose and fix audio problems with normal video.

Audio Error Troubleshooting: Distortion/Noise

Audio Distortion and Noise Resolution

Troubleshooting for distorted, discontinuous, or noisy audio.

Function Error Troubleshooting: Remote/Switches

Remote and Local Control Functionality Check

Diagnosing problems with the remote control and physical buttons.

Function Error Troubleshooting: External Devices

External Device Recognition Error Resolution

Troubleshooting steps for when external devices are not detected.

Noise Troubleshooting: Circuit/Mechanical

Circuit and Mechanical Noise Resolution

Identifying and resolving circuit or mechanical noises.

Detailed Video Diagnosis: Backlight Check

Backlight Visual Inspection

Detailed Video Diagnosis: LED Voltage

LED Backlight Voltage Measurement

Detailed Video Diagnosis: Tuner Signal

Tuner Input Signal Strength Checking

Detailed Video Diagnosis: LVDS Cable

LVDS Cable Check and Replacement

Detailed Video Diagnosis: Test Patterns

Test Pattern Adjustment and Analysis

Detailed Power Diagnosis: Standby LED

Standby LED Status Check

Detailed Power Diagnosis: Input Voltage

Checking Power Input Voltage

Detailed Power Diagnosis: Power Modes

Power Off Mode Analysis Procedure

Detailed Function Diagnosis: Remote Control

Remote Control Operation and IR Cable Check

Detailed Audio Diagnosis: Settings/Speaker

Audio Settings and Speaker Connection Check