LG 42PT350R-TD Service Manual

PLASMA TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : PP11K
MODEL : 42PT350R 42PT350R-TD
42PT351R 42PT351R-TC
North/Latin America http://aic.lgservice.com
Europe/Africa http://eic.lgservice.com
Asia/Oceania http://biz.lgservice.com
Internal Use Only
Printed in Korea
P/NO : MFL67002503 (1102-REV00)

LG 42PT350R-TD Specifications

General

Screen Size	42 inches
Display Type	Plasma
Resolution	1024 x 768
Aspect Ratio	16:9
Contrast Ratio	3, 000, 000:1
HDMI Ports	3
USB Ports	1
Power Consumption	220W
Viewing Angle	178°

Summary

Safety Precautions

General Guidance

Leakage Current Hot Check

Procedure for checking AC leakage current with the set powered on.

Leakage Current Cold Check

Procedure for checking AC leakage current with the set powered off.

Adjustment Instruction

Software Program Download

Download Method (MSTAR JIG)

Describes the download method using the MSTAR JIG.

Download Method (USB Memory Stick)

Details the software download process using a USB memory stick.

PCB Assembly Adjustment

Option Adjustment Following BOM

Power PCB Voltage Adjustment

Power PCB Adjustment Method

White Balance Adjustment

Required Equipment for White Balance

Auto White Balance Process

Describes the automated process for white balance adjustment.

Manual White Balance Process

Details the manual white balance adjustment using the remote control.

Circuit Diagram

Power Block Circuit Diagram

Repair Process: Troubleshooting Guides

Picture Problem: No Picture/Sound OK

Troubleshooting for no picture or sound.

Picture Problem: No Picture/No Sound

Flowchart for diagnosing no picture/no sound issues.

Picture Problem: Mal-discharge, Noise, Dark

Troubleshooting for mal-discharge, noise, and dark picture.

Picture Problem: Broken/Freezing

Troubleshooting for picture breaking or freezing.

Picture Problem: Vertical/Horizontal Bars

Troubleshooting for vertical/horizontal bar display issues.

Repair Process: Power Problems

No Power (Not Turn On)

Troubleshooting for no power issues.

Power Problem: Instant Turn Off

Troubleshooting for instant turn-off during operation.

Repair Process: Sound Problems

No Sound/Distortion

Troubleshooting for no sound or distorted sound.

Repair Process: General Functions

Remote Control Error

Repair Reference Data: Control Board Check

Repair Reference Data: Module Defects

Repair Reference Data: Module Connectors

Repair Reference Data: Power Board Voltage Check