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LG 32LG5000-ZA Service Manual

LG 32LG5000-ZA
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LCD TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : LD84A
MODEL : 32LG5000 32LG5000-ZA
MODEL : 32LG5010 32LG5010-ZD
MODEL : 32LG5020 32LG5020-ZB
MODEL : 32LG5030 32LG5030-ZE
website:http://biz.LGservice.com
Internal Use Only

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LG 32LG5000-ZA Specifications

General IconGeneral
Screen Size32 inches
Display Format720p
Display TypeLCD
Aspect Ratio16:9
Brightness500 cd/m²
Response Time5 ms
HDMI Ports3
Sound Output10W x 2
Resolution1366 x 768
Viewing Angle178° (H) / 178° (V)
Input PortsComponent, Composite
Power Consumption150W

Summary

Safety Precautions

General Guidance

Safety guidelines for servicing the TV.

Leakage Current Cold Check

Procedure for checking AC leakage current.

Leakage Current Hot Check

Procedure for checking AC leakage current.

Servicing Precautions

General Servicing Precautions

Basic rules for safe TV servicing.

Electrostatically Sensitive Devices

Handling components sensitive to static electricity.

General Soldering Guidelines

Techniques for soldering electronic components.

Component Removal and Replacement

Procedures for replacing TV parts like ICs, transistors, and diodes.

Circuit Board Foil Repair

Methods for repairing damaged circuit board traces.

Specification

Application Range

Defines the scope of the specification.

Requirement for Test

Conditions for product testing.

Test Method

Procedures for product testing.

Module General Specification

Technical details of the LCD module.

Model General Specification

General specifications per model.

Component Video Input (Y, Pb, Pr)

Input signal specifications for component video.

RGB PC Input Mode

PC input signal specifications.

HDMI DTV Specifications

HDMI input specifications for DTV.

HDMI PC Specifications

HDMI input specifications for PC.

Adjustment Instruction

Designation

Defines service procedures and equipment.

Main PCB Check Process

Steps for checking the main circuit board.

USB Download Procedure

Instructions for updating TV software via USB.

ADC Process (PC and Component)

Adjusting analog-to-digital converter values.

Function Check (Display and Sound)

Verifying TV display and audio output.

Total Assembly Line Process

Adjustment Preparation

Conditions and equipment for assembly line adjustments.

DPM Operation Confirmation

Verifying display power management operation.

DDC EDID Write (RGB)

Writing EDID data for RGB input.

DDC EDID Write (HDMI)

Writing EDID data for HDMI input.

Serial Number (RS-232C)

Setting the TV's serial number via RS-232C.

EDID DATA

Information regarding EDID data.

Outgoing Condition Configuration

Final settings before shipping.

Internal Pressure Check

Safety check for internal pressure.

Troubleshooting

No Power

Diagnosing and resolving power issues.

No Raster

Troubleshooting display absence.

Unusual Display (TV/CATV Mode)

Diagnosing display issues from TV/CATV.

Unusual Display (DTV Mode)

Diagnosing display issues from DTV.

Unusual Display (AV1/AV2 SCART)

Diagnosing display issues from SCART inputs.

Unusual Display (AV3 SIDE AV)

Diagnosing display issues from AV3 input.

Unusual Display (Component Mode)

Diagnosing display issues from Component input.

Unusual Display (RGB Mode)

Diagnosing display issues from RGB input.

Unusual Display (HDMI 1/2/3 Mode)

Diagnosing display issues from HDMI inputs.

No Sound

Troubleshooting audio absence.

Block Diagram

Exploded View

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