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LG 32LC7R User Manual

LG 32LC7R
39 pages
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R
LCD TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : LP78A
MODEL : 32LC7R 32LC7R-ZA
MODEL : 32LC51 32LC51-ZA
MODEL : 32LC52 32LC52-ZC
website:http://biz.LGservice.com
www.freeservicemanuals.info
1/12/2013
Worldwide electronic heritage manuals
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LG 32LC7R Specifications

General IconGeneral
Screen Size32 inches
Resolution1366 x 768
Display TypeLCD
HDMI Ports2
Display Format720p
Contrast Ratio5000:1
Brightness500 cd/m²
Response Time8 ms
Component Video Input1
S-Video Input1
Composite Video Input1
Speakers2
Aspect Ratio16:9
Input PortsHDMI, Component, S-Video, Composite, PC
Sound Output20W
Viewing Angle178° (H) / 178° (V)
PC Input1 (D-Sub)
USB PortsNo
Audio Output20W (10W x 2)

Summary

LG LCD TV Service Manual

Safety Precautions

General Safety Guidance

General safety practices for servicing electronic equipment.

AC Leakage Current Checks

Procedures for cold and hot AC leakage current tests.

Servicing Precautions and Guidelines

General Servicing and Soldering Practices

Best practices for servicing and soldering electronic components.

Handling Electrostatic Sensitive Devices

Precautions for ES devices to prevent damage during handling.

Component Servicing Procedures

Component Removal and Replacement

Procedures for removing and replacing ICs, transistors, diodes, fuses, and resistors.

Circuit Board Foil Repair

Techniques for repairing damaged circuit board foil at connections.

Specifications

General LCD Module Specifications

Details specifications for LCD modules and testing requirements.

Model and Input Specifications

EU Model and Video Input Specifications

Lists EU model specs and component/RGB input resolutions.

HDMI Input Specifications

HDMI Input (DTV) Resolutions

Specifies resolutions supported for HDMI DTV input.

Adjustment Instructions

Adjustment Setup and Requirements

Defines application range, conditions, and requirements for adjustment.

Adjustment Items and Methods

Lists adjustment items and PCB assembly methods.

Software Program Download Methods

Method 1: PCB Assembly Download

Step-by-step guide for downloading software via PCB.

Software Program Download Method 2

AV Plate Assembly Download

Steps for downloading software via AV Plate Assy.

Software Program Download Method 3

SET Assembly Download

Steps for downloading software via SET.

Channel Memory Download

Channel Memory Download Procedure

Steps for downloading channel memory data.

Channel Memory Download Details

Channel Memory Download Steps

Detailed steps for downloading channel memory.

Adjustment Procedures and Options

Tool, Area Option, and Color Carrier Adjustment

Procedures for changing options and adjusting color carrier.

EDID/DDC Data Download and Specifications

Details EDID/DDC data and download process.

EDID Data Adjustment

EDID Data Setup and Adjustment Sequence

Steps for adjusting EDID data for analog and digital inputs.

White Balance Adjustment Setup

Equipment and Connections for White Balance

Required equipment and connections for white balance adjustment.

Manual White Balance and Option Data Adjustment

Manual White Balance Adjustment Steps

Detailed steps for manual white balance adjustment.

Shipping Option Data and Default Values

Inputting option data and default adjustment values.

Troubleshooting

No Power Troubleshooting Guide

Diagnostic steps for a unit with no power.

Troubleshooting: Protect Mode

Protect Mode Diagnostic Flow

Steps to diagnose and resolve protect mode issues.

Troubleshooting: Display Issues

No Raster and RF Display Issues

Diagnosing no raster and RF mode display problems.

Troubleshooting: AV and S-Video Display

AV and S-Video Display Issues

Diagnosing display problems in AV and S-Video modes.

Troubleshooting: SCART Display

SCART Display Issues

Diagnosing display problems in SCART modes.

Troubleshooting: Component and RGB Display

Component and RGB Display Issues

Diagnosing display problems in component and RGB modes.

Troubleshooting: No Sound

No Sound Diagnostic Guide

Steps to diagnose and resolve no sound issues.

Troubleshooting: HDMI Issues

HDMI Mode Diagnostic Steps

Steps to troubleshoot HDMI audio/video problems.

Block Diagram

Exploded View

Exploded View Parts List

Replacement Parts List

Capacitors Replacement Parts

Lists replacement part numbers for capacitors.

Replacement Parts List - Capacitors and Diodes

Capacitor and Diode Part Numbers

Lists replacement part numbers for capacitors and diodes.

Replacement Parts List - Diodes and ICs

Diode and IC Part Numbers

Lists replacement part numbers for diodes and ICs.

Replacement Parts List - ICs, Resistors, Transistors

IC, Resistor, and Transistor Part Numbers

Lists replacement part numbers for ICs, resistors, and transistors.

Replacement Parts List - Resistors

Resistor Part Numbers (Part 1)

Lists replacement part numbers for resistors.

Replacement Parts List - Resistors (Continued)

Resistor Part Numbers (Part 2)

Continues the list of replacement resistors.

Replacement Parts List - Resistors and Inductors

Resistor and Inductor Part Numbers

Lists replacement part numbers for resistors and inductors.

Replacement Parts List - Filters, Jacks, Switches, Accessories

Filter, Jack, Switch, and Accessory Part Numbers

Lists replacement part numbers for filters, jacks, switches, and accessories.

Schematic Diagrams

Input and Tuner Schematics

Schematics for SCART, analog inputs, UART, digital inputs, and tuner.

Schematic Diagrams (Continued)

Scaler, Audio, Power, and Decoder Schematics

Schematics for VCTP scaler, audio, power supply, and video decoder.

Panel and Sensor Schematics

Schematics for panel and sensors.

VCTP Scaler Schematic Details

VCTP Scaler Circuit Details

Detailed schematic for the VCTP scaler.

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