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LG 42LG30R-MA User Manual

LG 42LG30R-MA
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TELEVISOR A LCD
MANUAL DE SERVICIO
ATENCIÓN
Antes de dar servicio al chasis, lea las PRECAUCIONES DE SEGURIDAD
en este manual.
CHASIS : LP81A
MODELO : 42LG30R 42LG30R-MA
website:http://biz.LGservice.com
Internal Use Only
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LG 42LG30R-MA Specifications

General IconGeneral
BrandLG
Model42LG30R-MA
CategoryLCD TV
LanguageEnglish

Summary

Safety Precautions

Safety Instructions

Detailed guidelines for safe operation and servicing of high-voltage TV equipment.

Product Safety Notice

Warning about component replacements affecting X-ray radiation safety and fire prevention.

Product Specifications

Application Range

Defines the models and chassis this specification sheet applies to.

General Specifications

Outlines testing conditions, test methods, and general TV parameters like screen size and resolution.

Power Consumption Details

Lists power consumption values for different screen sizes and modes (On, Stand-by).

LCD Module Specifications

Details LCD module dimensions, pixel pitch, and backlight types from various manufacturers.

Chrominance and Luminance Specifications

Provides detailed color coordinate and luminance data for different panel types.

Contrast Ratio and Luminance Variation

Specifies contrast ratio ranges and luminance variation for various panel models.

SET Optical Features

General Optical Performance

Details optical performance metrics like contrast ratio and luminance for different screen sizes and types.

Input Signal Specifications

Component Video Input Details

Lists resolutions, frequencies, and pixel clocks for component video inputs.

RGB Analog PC Input Details

Lists resolutions, frequencies, and pixel clocks for analog PC RGB inputs.

HDMI Input Signal Details

Lists PC and DTV resolutions and frequencies supported via HDMI input.

Adjustment Procedures

Application Range and Notices

Covers the scope of adjustments and important preliminary notices before proceeding.

PCB Assembly Adjustment

Details adjustment items for PCB assembly, including software download.

PCB Assembly Adjustment Method

Outlines the step-by-step method for adjusting PCB assembly using MSTAR software.

Software Program Download Steps

Provides detailed instructions for downloading firmware using the ISP Tool program.

ADC Process and Color Balance

Explains the ADC process, auto RGB color balance, and component input adjustments.

White Balance Adjustment

Purpose, Principle, and Modes

Explains the goals, principles, and modes for adjusting color temperature and white balance.

Manual White Balance Adjustment Procedure

Provides a sequential guide for performing manual white balance adjustments using a remote and analyzer.

Troubleshooting: Power Issues

No Power Symptom and Check Process

Guides users through diagnosing and resolving "no power" issues with a flowchart.

Troubleshooting: Display Issues (No Raster)

No Raster Symptom and Check Process

Provides a flowchart for troubleshooting scenarios where no image or raster is displayed.

Troubleshooting: Display Issues (RF Mode)

RF Mode Unusual Display Check Process

Details the troubleshooting steps for unusual display issues originating from RF mode reception.

Troubleshooting: Input Signal Display Issues

AV and S-Video Display Issues

Covers troubleshooting for display problems related to rear and side AV/S-Video inputs.

Component and RGB Display Issues

Addresses troubleshooting for display anomalies in component and RGB input modes.

Troubleshooting: Audio Issues (No Sound)

No Sound Symptom and Check Process

Outlines a flowchart for diagnosing and resolving audio output problems.

System Block Diagram

Main System Block Diagram

Presents a comprehensive overview of the TV's internal components and their interconnections.

Exploded View and Safety

Parts Identification and Safety Notice

Displays an exploded view of the TV for parts identification and includes a critical safety warning.

Input Circuit Schematics

Analog and Digital Input Schematics

Shows detailed schematics for various input interfaces like Component, AV, RS232C, PC, HDMI, and Panel Wafer.

Key Component Schematics

Tuner, Audio, USB, and MSTAR IC Schematics

Provides schematics for specific components including the tuner, audio amplifier, USB/MPEG decoder, and MSTAR main IC.

Memory and Power Supply Schematics

DDR Memory and Power Sections

Details the schematics for the DDR memory interface and the TV's power supply circuits.

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