LG Flatron W1934S - User Manual

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Website:http://biz.LGservice.com
E-mail:http://www.LGEservice.com/techsup.html
COLOR MONITOR
SERVICE MANUAL
CHASSIS NO. :
MODEL: W1934S
(W1934S- SNI/W1934S-BNI.Axx*QP)
xx * means sales region and module type
(AxxIQP: INL 5ms, AxxQQP: CMO 5ms, AxxYQP: IVO 5ms)
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
*To apply the MSTAR Chip.

Summary

SPECIFICATIONS

POWER SUPPLY

SAFETY AND HANDLING PRECAUTIONS

GENERAL SAFETY WARNINGS

Critical warnings about electric shock and component handling.

LCD MODULE HANDLING GUIDELINES

Instructions for safely handling the LCD module and backlight.

SERVICING PRECAUTIONS

General Servicing Precautions

Electrostatically Sensitive Devices

Techniques to prevent damage to sensitive electronic components.

SOLDERING AND COMPONENT REPLACEMENT

Component Replacement Procedures

DISASSEMBLY PROCEDURE

ADJUSTMENT PROCEDURES

EDID Writing

SERVICE OSD OPERATIONS

SVC OSD Menu Features

TROUBLESHOOTING GUIDE

No Power; LED Off

Troubleshooting steps for a completely dead monitor.

Backlight Issues

Diagnostic flowchart for backlight not turning on.

Power Supply Issues

Troubleshooting for unstable DC output voltage or power.

Display Issues

Troubleshooting for black screen, white screen, or bad screen.

EXPLODED VIEW AND PARTS LIST

SCHEMATIC DIAGRAMS

DC to DC Conversion

Scaler and Inverter Circuits

Power Supply Circuit

LG Flatron W1934S Specifications

General

Screen Size	19 inches
Resolution	1440 x 900
Aspect Ratio	16:10
Brightness	300 cd/m²
Response Time	5 ms
Viewing Angle	170° (H) / 160° (V)
Panel Type	TN
Input	D-Sub