LG 47LG5000 User Manual

LCD TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : LD84D
MODEL : 47LG5000
47LG5000-ZA
website:http://biz.LGservice.com
Internal Use Only

LG 47LG5000 Specifications

General

Brand	LG
Model	47LG5000
Category	LCD TV
Language	English

Summary

SAFETY PRECAUTIONS

IMPORTANT SAFETY NOTICE

Crucial safety information and warnings for servicing.

General Guidance

Leakage Current Hot Check

Procedure for checking AC leakage current during servicing.

General Servicing Precautions

General Servicing Precautions

Electrostatically Sensitive (ES) Devices

Guidelines for handling sensitive electronic components.

General Soldering Guidelines

IC Remove/Replacement

IC Remove/Replacement

Detailed procedure for removing and replacing IC components.

Small-Signal Discrete Transistor Removal/Replacement

Steps for removing and replacing small-signal transistors.

Power Output, Transistor Device Removal/Replacement

Method for removing and replacing power transistors and heat sinks.

Diode Removal/Replacement

Steps for removing and replacing diodes, including polarity.

Fuse and Conventional Resistor Removal/Replacement

Procedure for replacing fuses and resistors.

Circuit Board Foil Repair

Techniques for repairing damaged circuit board copper foil.

ADJUSTMENT INSTRUCTION

3. Main PCB check process

Software Update and ADC Process

• USB DOWNLOAD

3.1 ADC Process

Detailed steps for Analog-to-Digital Converter (ADC) process adjustments.

Function Check and Assembly Process

3.2 Function Check

4. Total Assembly line process

Outlines the complete process for assembly line adjustments.

Data Writing and Serial Number Setting

4.3 DDC EDID Write (RGB 128Byte)

Process for writing DDC EDID data for RGB input.

4.4. DDC EDID Write (HDMI 256Byte)

Process for writing DDC EDID data for HDMI input.

4.5. Serial number (RS-232C)

Procedure for writing the serial number via RS-232C.

EDID DATA Tables

4.5 EDID DATA

Contains EDID data tables for HDMI and Analog RGB inputs.

Adjusting the White Balance

5.4 RS-232C Command used for the automatic adjustment

Lists RS-232C commands for automatic white balance adjustment.

White Balance Reference and Country Options

6.3 Reference (White Balance adjustment coordinate and White balance)

9. GND and resisting pressure test

TROUBLESHOOTING

TV/CATV doesn't display

Troubleshooting flowchart for TV/CATV display issues.

DTV doesn't display

AV1/2/3 doesn't display

Component doesn't display

RGB PC doesn't display

HDMI doesn't display