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LG FLATRON W2241S User Manual

LG FLATRON W2241S
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COLOR MONITOR
SERVICE MANUAL
Website:http://biz.LGservice.com
E-mail:http://www.LGEservice.com/techsup.html
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS NO. : LM73A
MODEL: W2241S(W2241S-BFT.A***P*)
( ) **Same model for Service
Internal Use Only
W2241S(W2241S-PFT.A***P*)
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LG FLATRON W2241S Specifications

General IconGeneral
BrandLG
ModelFLATRON W2241S
CategoryMonitor
LanguageEnglish

Summary

Specifications

LCD Characteristics

Key physical and electrical properties of the LCD panel.

Optical Characteristics

Visual performance metrics like viewing angle, luminance, and contrast.

Signal (Refer to the Timing Chart)

Details on video input signals, sync types, and frequencies.

Max. Resolution

Maximum supported display resolution and refresh rate.

Power Supply

Power input, consumption, and adapter specifications.

Environment

Operating temperature, humidity, and MTBF.

Dimensions (with Tilt)

Physical size of the monitor with the stand.

Weight (with Tilt)

Weight of the monitor with the stand.

Precautions

Warning for Safety-Related Components

Identifies critical safety components and replacement warnings.

Handling the LCD Module with Backlight Unit

Guidelines for safely handling the sensitive LCD module.

General Servicing Precautions

Essential safety rules for servicing the unit, including power and discharge.

Electrostatically Sensitive (ES) Devices

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

General Servicing Guidelines

Best practices for soldering, unsoldering, and handling components.

IC Remove/Replacement

Specific techniques for removing and replacing integrated circuits.

Circuit Board Foil Repair

Methods for repairing damaged copper traces on circuit boards.

Timing Chart

Disassembly

Block Diagram

Description of Block Diagram

Video Controller Part

Explains the function of the video signal processing circuitry.

Power Part

Details the power supply stages and voltage regulation.

MICOM Part

Describes the microcontroller and its control functions.

Adjustment

Port Setup

Steps to configure the serial port for software interaction.

EDID Read & Write

Procedure for reading and writing monitor identification data.

Service OSD

Accessing Service OSD

Instructions on how to enter the service mode menu.

Service OSD Menu Options

Summary of functions available within the service menu.

Troubleshooting Guide

1. No Power

Diagnostic steps for when the monitor does not turn on.

2. No Raster (OSD Not Displayed) - LIPS

Troubleshooting a blank screen issue related to the LIPS board.

3. No Raster (OSD Not Displayed) - Main

Troubleshooting a blank screen issue on the main board.

4. Trouble in DPM

Steps to diagnose issues related to the Digital Picture Mode (DPM).

Wiring Diagram

Exploded View

Exploded View Parts List

Schematic Diagrams

Main Board Schematics

Detailed circuit diagram for the main control board.

Power & Wafer Schematics

Circuit diagrams for the power supply and related components.

LIPS Schematics

Circuit diagram for the LIPS (Low-power Image Processing System) board.

Inverter Schematics

Circuit diagram for the backlight inverter circuitry.

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