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LG 42PX3RVA-ZC User Manual

LG 42PX3RVA-ZC
36 pages
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PLASMA TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : MF-056C
MODEL : 42PX3RVA
42PX3RVA-ZC
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html
PR
VOL
MENUTV/AV OK
All manuals and user guides at all-guides.com
all-guides.com

Questions and Answers:

LG 42PX3RVA-ZC Specifications

General IconGeneral
Screen Size42 inches
Display TypePlasma
Resolution1024 x 768
Aspect Ratio16:9
Contrast Ratio10000:1
Brightness1500 cd/m²
HDMI Ports1
Component Video Inputs2
Viewing Angle160°
InputsHDMI, Component, Composite

Summary

SAFETY PRECAUTIONS

Important Safety Notice

Identifies special safety-related characteristics of parts and the need for correct replacement.

General Guidance

Provides essential advice for safe servicing, including isolation transformers and handling specific components.

Leakage Current Hot Check

Details the procedure for measuring AC leakage current with the set plugged in.

Leakage Current Cold Check

Describes how to check leakage current with the set unplugged and jumpered.

DESCRIPTION OF CONTROLS

Remote Control Key Functions

Explains the functions of various buttons on the remote control for operating the TV.

FRONT PANEL CONTROLS

Front Panel Control Details

Details the location and function of the TV's front panel buttons and indicators.

BACK PANEL CONTROLS

Back Panel Connector Details

Describes the various input/output connectors and ports located on the back panel.

DISPLAYABLE MONITOR SPECIFICATIONS

RGB/HDMI Mode Specifications

Lists displayable resolutions and corresponding horizontal/vertical frequencies for RGB/HDMI modes.

ACCESSORIES

Wall Mounting Instructions

Provides guidance on securing the TV assembly to a wall for stability.

Optional Extras

Mentions optional accessories available for purchase and potential modifications.

SPECIFICATIONS

Application Range

Defines the scope of application for the specified chassis and TV model.

Test Conditions and Methods

Details test conditions, methods, and general technical specifications for the TV.

Model Specification

Lists detailed specifications for the 42PX3RVA-ZA model, including broadcasting and input systems.

ADJUSTMENT INSTRUCTIONS

Application Object and Specifications

Specifies the target chassis and the conditions required for adjustments.

Channel Memory Setup

Provides step-by-step instructions for setting up channel memory using LGIDS software.

POWER PCB ASSY VOLTAGE ADJUSTMENTS

Va and Vs Voltage Adjustment

Details the procedure for adjusting Va and Vs voltages using a DMM and specific test patterns.

EDID/DDC DOWNLOAD

EDID Data Download Procedure

Explains how to download EDID data for Analog-RGB and Digital (HDMI) connections.

AUTO AV(CVBS) COLOR BALANCE

Requirements and Equipment

Lists requirements and necessary equipment for performing AV color balance adjustments.

Auto RGB Color Balance Method

Describes the method for automatically adjusting RGB color balance using specific test patterns.

ADJUSTMENT OF WHITE BALANCE

Required Equipment and Setup

Specifies equipment and connection diagrams needed for white balance adjustment.

White Balance Adjustment Procedure

Details the step-by-step process for manual and automatic white balance adjustments.

AUTO COMPONENT COLOR BALANCE

Equipment and Method

Outlines the required test equipment and the procedure for auto component color balance.

DEFAULT VALUES IN ADJUSTMENT MODE

Auto Color Balance Defaults

Shows the default hex values for auto color balance adjustments (Component/RGB).

White Balance Defaults

Displays the default hex values for white balance adjustments.

TROUBLESHOOTING GUIDE

Power Board Voltage Output Issues

Provides a flowchart for diagnosing voltage output problems on the power board.

SONY POWER BOARD STRUCTURE

Sony Power Board Layout

Illustrates the physical layout and pin assignments of the Sony power board.

SANKEN POWER BOARD STRUCTURE

Sanken Power Board Layout

Details the physical arrangement and pin connections of the Sanken power board.

TROUBLESHOOTING - NO POWER

Symptom and Diagnosis

Describes symptoms of no power and provides a troubleshooting flowchart.

TROUBLESHOOTING - PROTECT MODE

Symptom and Diagnosis

Explains symptoms of protect mode and provides a diagnostic flowchart for resolution.

TROUBLESHOOTING - NO RASTER

Symptom and Diagnosis

Details symptoms of no raster and offers a troubleshooting flowchart for diagnosis.

TROUBLESHOOTING - SCREEN DISPLAY ISSUES

OSD Display Problems

Addresses issues where the On-Screen Display (OSD) does not appear correctly.

Specific Input Mode Display Problems

Covers scenarios where specific input modes (RF, AV, Component, HDMI) do not display correctly.

TROUBLESHOOTING - NO SOUND

Symptom and Diagnosis

Describes symptoms of no sound output and provides a troubleshooting flowchart.

BLOCK DIAGRAM

System Block Diagram

Presents a high-level overview of the TV's internal components and their interconnections.

EXPLODED VIEW

Component Breakdown Diagram

Shows an exploded view of the TV's internal components with reference numbers.

EXPLODED VIEW PARTS LIST

Component Parts Identification

Lists all parts shown in the exploded view with their part numbers and descriptions.

REPLACEMENT PARTS LIST

Component Replacement Parts

Provides a comprehensive list of replaceable parts, categorized by component type (IC, Transistor, Diode, etc.).

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