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LG CT-29Q90IP User Manual

LG CT-29Q90IP
43 pages
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COLOR TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : MC-006A
MODEL:CT-29Q90IP
MODEL:CF-29F96IP
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html
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LG CT-29Q90IP Specifications

General IconGeneral
BrandLG
ModelCT-29Q90IP
CategoryTV
LanguageEnglish

Summary

Safety Precautions

General Guidance

Important safety advice and procedures for servicing the TV.

X-RAY Radiation

Information on X-ray radiation protection during servicing.

Leakage Current Checks

Procedures for checking AC leakage currents for safety.

Specifications

System Specifications

Details on video input, IF frequencies, tuning, audio, and features.

Description of Controls

Remote Control Overview

Explanation of remote control buttons and functions.

Front Panel Controls

Description of TV's front panel buttons and sockets.

Remote Control Functions

Details on specific remote control button functions.

Battery Installation

Instructions for installing remote control batteries.

Side Panel Controls

Description of TV's side panel sockets.

Disassembly Instructions

Disassembly Precautions

Safety notes and picture tube handling caution before disassembly.

Component Removal Steps

Procedures for removing chassis, speakers, and CPT.

Adjustment Instructions

Adjustment Safety and Equipment

Safety precautions and required test equipment for adjustments.

Focus and Screen Voltage Adjustment

Procedures for adjusting picture focus and screen voltage.

White Balance and Deflection Adjustment

Steps for adjusting white balance and deflection data.

Vertical Adjustment Parameters

Details on adjusting vertical parameters.

Option Adjustment

Option Adjustment Details

Guide to adjusting TV options via SVC mode.

Troubleshooting

No Power Troubleshooting

Diagnostic flowcharts for no power issues.

No Raster or Picture Issues

Troubleshooting for no raster or picture problems.

VM Function Issues

Troubleshooting guide for the VM function.

Channel Reception Issues

Troubleshooting for channel reception issues.

PIP/Double Window Issues

Troubleshooting for Picture-in-Picture malfunctions.

No Center Speaker Sound

Diagnosing missing center speaker audio.

No Woofer Speaker Sound

Diagnosing missing woofer audio.

No Teletext Functionality

Troubleshooting steps for non-functional teletext.

Vertical Deflection Problems

Diagnostic procedures for vertical deflection issues.

Picture Distortion

Steps to fix picture barrel distortion.

No Front Speaker Sound

Troubleshooting for missing front speaker audio.

No Headphone Jack Sound

Diagnosing no sound from the headphone jack.

Wiring Diagram

Wiring Connections Overview

Diagrams showing wiring connections between boards.

Exploded View

TV Component Layout

Exploded view of external and internal TV components.

Exploded View Parts List

Parts Identification

List of components with location numbers and descriptions.

Replacement Parts List

ICs and Diodes

Part numbers and descriptions for integrated circuits and diodes.

Transistors

Part numbers and descriptions for transistors.

Capacitors

Part numbers and descriptions for capacitors.

Capacitors (Continued)

Additional capacitor part numbers and descriptions.

Capacitors (Continued)

Further capacitor part numbers and descriptions.

Capacitors (Continued)

Additional capacitor part numbers and descriptions.

Coils, Transformers, Connectors

Parts list for coils, transformers, and connectors.

Connectors and Resistors

Part numbers and descriptions for connectors and resistors.

Resistors

Part numbers and descriptions for resistors.

Resistors (Continued)

Additional resistor part numbers and descriptions.

Resistors (Continued)

Further resistor part numbers and descriptions.

Spark Gaps, Filters, Crystals, Accessories

Parts list for spark gaps, filters, crystals, and accessories.

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