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LG Flatron W2234S User Manual

LG Flatron W2234S
39 pages
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Website:http://biz.LGservice.com
E-mail:http://www.LGEservice.com/techsup.html
COLOR MONITOR
SERVICE MANUAL
CHASSIS NO. :
MODEL:
W2234S
(W2234S-
SNI/W2234S-BNI.Axx*QP)
xx * means sales region and module type
(AxxIQP: INL 5ms, AxxVQP: AUO 5ms)
CAUTION
BEFORE SERVICING THE UNIT,
READ THE
SAFETY PRECAUTIONS
IN THIS MANUAL.
*To apply the MSTAR Chip.
1
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LG Flatron W2234S Specifications

General IconGeneral
Screen Size22 inches
Resolution1680 x 1050
Aspect Ratio16:10
Panel TypeTN
Brightness300 cd/m²
Contrast Ratio1000:1
Response Time5 ms
ConnectivityD-Sub, DVI-D
InputVGA
Viewing Angle170° (H) / 160° (V)

Summary

Specifications

Safety Precautions

Critical Safety Components & Handling

Identifies critical safety components and safe handling of the LCD module.

Electrical Shock Hazard Warnings

Warnings regarding high voltage and precautions during servicing.

General Servicing Precautions

Repair and Soldering Techniques

Block Diagram Overview

Adjustment and EDID Writing

Service OSD Menu

Troubleshooting Guide

No Power or LED Off Issues

Diagnostic steps for when the monitor fails to power on.

Troubleshooting Display Issues

Backlight and DC Output Problems

Troubleshooting steps for backlight failures and unstable DC output voltages.

Troubleshooting Screen Faults

DC Output Instability

Steps to diagnose and resolve issues with unstable DC output voltage.

Troubleshooting Backlight Failures

Backlight Turn On/Off Issues

Diagnostic procedures for backlight turning on and off intermittently.

Troubleshooting Screen Display

Black Screen and MCU Failures

Steps to diagnose black screen issues, MCU failures, and inverter faults.

Troubleshooting Display Conditions

White Screen and LVDS Signal Issues

Troubleshooting for white screen, VLCD, and LVDS signal problems.

Troubleshooting Screen Defects

Bad Screen and Crystal Circuit Faults

Procedures for diagnosing bad screen, crystal, and connection issues.

Schematic Diagrams

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