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LG Flatron L222WS User Manual

LG Flatron L222WS
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COLOR MONITOR
SERVICE MANUAL
E-mail:http://www.LGservice.com/techsup.html
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
MODEL: L222WS
(L222WS-SNQ/BNQ.AxxAQP.
xx:sales marketing, Mstar scaler, CPT Module)
*To apply the MSTAR Chip.
http://www.wjel.net
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LG Flatron L222WS Specifications

General IconGeneral
BrandLG
ModelFlatron L222WS
CategoryMonitor
LanguageEnglish

Summary

Monitor Specifications

LCD Panel Characteristics

Detailed technical specifications of the Liquid Crystal Display panel.

Optical Performance Specs

Visual performance metrics including viewing angles and contrast ratio.

Video Signal Input Specs

Input signal types, voltage levels, and impedance for video input.

Maximum Display Resolution

The highest display resolution supported by the monitor.

Power Supply Details

Input voltage range and power consumption details.

Operating Environment Specs

Operating temperature, humidity, and MTBF ratings.

Physical Dimensions and Weight

Physical size and weight of the monitor with stand.

General Safety and Handling

Critical Component Safety Warnings

Critical component identification for safety and hazard prevention.

High Voltage Shock Precautions

Precautions against high voltage and electrical shock during servicing.

LCD Module Handling Guidelines

Guidelines for safe handling and mounting of the LCD module.

Service Operation Safety Cautions

General cautions for service operations, including tool usage.

Detailed Servicing Precautions

General Servicing Procedures

Fundamental procedures for safe and effective servicing of the unit.

Handling ESD Sensitive Devices

Techniques to prevent damage to sensitive electronic components from static discharge.

Component Repair and Replacement

Soldering/Unsoldering Techniques

Procedures for proper soldering and unsoldering of electronic components.

IC, Transistor, Diode Replacement

Step-by-step guide for replacing integrated circuits, transistors, and diodes.

Fuse & Resistor Replacement

Methods for safely removing and replacing fuses and resistors.

Circuit Board Repair Techniques

Copper Trace Repair (IC Connections)

Repairing damaged copper traces on circuit boards near IC pins.

Copper Trace Repair (Other)

Repairing damaged copper traces on circuit boards at general connections.

Monitor Timing Chart

Disassembly Procedures

Monitor Unit Disassembly

Illustrated steps for disassembling the main monitor unit.

Monitor Stand Disassembly

Illustrated steps for detaching the monitor stand.

System Block Diagrams

Main System Block Diagram

Overview of the monitor's main functional blocks and connections.

Power Supply Block Diagram

Diagram illustrating the power supply circuitry and its components.

Block Diagram Explanations

Video Controller Part Explained

Explanation of the video signal processing and conversion functions.

Power Part Explained

Details on power conversion, distribution, and regulation circuits.

MICOM Part Explained

Description of the microcontroller unit and its control functions.

LIPS Board Operations

LIPS Board Block Diagram

Functional block diagram of the LIPS board.

LIPS Board Operation Explained

Explanation of the operational principles of the LIPS board components.

Monitor Adjustment Procedures

Port Setup for Adjustment

Steps for setting up communication ports required for monitor adjustment.

EDID Read/Write Utility

Instructions for using the EDID utility to manage display information.

Service Mode Operations

SVC OSD Menu Options

Description of special service menu options for advanced adjustments.

Troubleshooting Guide

No Power Troubleshooting

Diagnostic steps for when the monitor does not power on.

No Raster Display Troubleshooting (LIPS)

Steps to diagnose display issues related to the LIPS board.

No Raster Display Troubleshooting (MSTAR)

Steps to diagnose display issues related to the MSTAR scaler.

DPM Troubleshooting

Diagnostic steps for Digital Power Management (DPM) issues.

Power Supply Troubleshooting

Troubleshooting guide for power-related failures and voltage checks.

Raster and Lamp Troubleshooting

Diagnosing backlight and display raster problems.

Diagrams and Parts Lists

Wiring Diagram

Schematic showing electrical connections and component layout.

Exploded View

Visual representation of the monitor's components in an assembled state.

Exploded View Parts List

List of all parts shown in the exploded view with reference numbers.

Replacement Parts List

Comprehensive list of replaceable parts for the monitor.

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