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LG 32LH500D Service Manual

LG 32LH500D
45 pages
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LED TV
SER
VICE MANUAL
MODEL : 32LH500B/32LH500D
43LH5000/43LH500T
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

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LG 32LH500D Specifications

General IconGeneral
Screen shapeFlat
Response time- ms
Display diagonal32 \
Display brightness- cd/m²
Display resolution1366 x 768 pixels
Native aspect ratio16:9
LED backlighting typeDirect-LED
Display diagonal (metric)80 cm
Motion interpolation technology-
3DNo
Annual energy consumption49 kWh
Tuner typeAnalog & digital
Digital signal format systemDVB-C, DVB-T2
RMS rated power12 W
Number of speakers2
DVI-D ports quantity0
USB 2.0 ports quantity1
Product colorBlack
Power consumption (standby)0.3 W
Power consumption (typical)33 W
Package depth142 mm
Package width808 mm
Package height512 mm
Package weight6800 g
Weight and Dimensions IconWeight and Dimensions
Depth (with stand)179.5 mm
Height (with stand)429 mm
Depth (without stand)77 mm
Width (without stand)727 mm
Height (without stand)428 mm
Weight (without stand)5000 g

Summary

Safety Precautions

General Servicing Safety Guidance

General advice for safe servicing, including isolation transformers and handling components.

Cold Check AC Leakage Current

Procedure for checking AC leakage current with the unit unplugged and chassis grounded.

Hot Check AC Leakage Current

Procedure for checking AC leakage current with the unit plugged in, using a resistor and capacitor.

Servicing Precautions

General Servicing Safety Rules

Basic safety rules for servicing, including unplugging power and using proper test equipment.

Handling Electrostatic Sensitive Devices (ES)

Techniques to prevent damage to sensitive electronic components from static electricity.

Safe Soldering Practices

Recommended practices for soldering, including iron temperature, solder type, and cleaning tips.

TV Specifications

Application Range and Models

Defines the range of LED TV models this specification applies to.

Test Requirements and Conditions

Outlines the conditions and procedures for testing the TV components and performance.

Performance and Safety Test Methods

Details the methods used for performance and safety testing of the TV.

Model General Specifications

Lists general specifications like input voltage, screen size, and connectivity for various models.

Adjustment Instructions

ADC and White Balance Adjustment Procedures

Details procedures for adjusting ADC and performing white balance calibration.

Software Upgrade Procedure

Firmware Upgrade Preparation

Steps to prepare a USB drive and copy the firmware file for software upgrade.

Firmware Upgrade Process

Procedures for plugging in the USB, initiating the upgrade, and verifying the version.

Block Diagram Overview

Exploded View Diagrams

Video error - No video/ Normal audio

Video error - No video/ No audio

Video error - Tuning fail

Video error - Color error

Video error - Vertical/Horizontal bar, residual image, light spot, external device color error

Power error - No power

Power error - Off when on, off while viewing, power auto on/off

Audio error - No audio

Audio error - Wrecked audio/ discontinuation/noise

Function error - Remote control & Local switch checking

Noise - Circuit noise, mechanical noise

Exterior defect - Exterior defect

Video error_No video/Normal audio

Video error_No video/ Audio

Video error_Vertical/Horizontal bar, residual image, light spot

Video error_Color error

Power error_No power

Power error_No Power - Input Voltage and ST-BY 5V Check

Power error_No Power - Method When Power is ON

Audio error_No audio /Normal video

Function error_ No response in remote controller

Video error_Color error - Check Test Pattern

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