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LG 22LS2100 Service Manual

LG 22LS2100
32 pages
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Printed in KoreaP/NO : MFL67620302 (1208-REV00)
CHASSIS : LD93Q
MODEL : 22LS2100 22LS2100-MA
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
LED LCD TV
SERVICE MANUAL
North/Latin America http://aic.lgservice.com
Europe/Africa http://eic.lgservice.com
Asia/Oceania http://biz.lgservice.com
Internal Use Only

Other manuals for LG 22LS2100

Questions and Answers:

LG 22LS2100 Specifications

General IconGeneral
Screen Size22 inches
Resolution1366 x 768
Display TypeLCD
Aspect Ratio16:9
Brightness250 cd/m²
Contrast Ratio1000:1
Response Time5 ms
HDMI Ports1
USB Ports1
Weight3.5 kg
Refresh Rate60 Hz
Sound Output5W x 2
InputsHDMI, USB, Composite

Summary

Safety Precautions

General Guidance

Provides general safety guidelines for servicing the TV.

AC Leakage Current Checks

Details procedures for checking AC leakage current in the set.

Servicing Precautions

General Servicing Precautions

Covers essential precautions for safe and effective servicing of the TV.

Electrostatically Sensitive Devices

Explains handling procedures for ESD-sensitive components to prevent damage.

General Soldering Guidelines

Provides best practices for soldering components on the circuit board.

Specification

Specification Overview

Outlines the application range, testing requirements, and methods for specifications.

General Specification & RGB-PC Details

Details general specifications including RGB-PC and TV input modes.

RGB Input (PC) Specifications

Specifies parameters for RGB input signals and resolutions.

HDMI Input Specifications

Specifies parameters for HDMI input signals and resolutions.

Adjustment Instruction

Application and Designation

Defines the application scope and designations for the adjustment instructions.

ADC Calibration Procedures

Details ADC calibration steps, including PC input adjustments.

PCB Assembly Adjustment Items

Covers PCB assembly adjustments like Input Tool-Option and Area Option.

Software Program Download

Details procedures for downloading software using Method 1 and Method 2.

EDID and HDCP Key Management

Explains how to check EDID data and write HDCP keys.

White Balance Check

Details the procedure for checking white balance using color coordinates and temperature.

Functionality Check

Verifies input and signal items for display and sound functionality.

Trouble Shooting

Power Troubleshooting

Provides a flowchart for diagnosing and resolving 'No Power' issues on the main PCBA.

Screen Troubleshooting

Details troubleshooting steps for 'No Raster', 'Abnormal/No Screen' across different inputs.

Sound Troubleshooting

Provides flowcharts for diagnosing and resolving 'No Sound' issues for all sources.

Block Diagram

Exploded View

Schematic Diagram

LVDS/IR Schematic

Schematic diagram for LVDS and IR components.

HDMI/RGB Schematic

Schematic diagram for HDMI and RGB interfaces.

TUNER Schematic

Schematic diagram for the TV tuner module.

AUDIO Schematic

Schematic diagram for the audio processing circuitry.

POWER Schematic

Schematic diagram illustrating the power supply circuits.

Driver Schematic

Schematic diagram for the display driver circuitry.

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