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LG Flatron W1946S User Manual

LG Flatron W1946S
22 pages
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C
OLOR MONITOR
SERVICE MANUAL
W
ebsite:http://biz.LGservice.com
C
AUTION
B
EFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS NO. : L
M84K
MODEL:
(
) **Same model for Service
Internal Use Only
W1946S(W1946S-BFW)
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LG Flatron W1946S Specifications

General IconGeneral
BrandLG
ModelFlatron W1946S
CategoryMonitor
LanguageEnglish

Summary

PRODUCT SPECIFICATIONS

LCD and Optical Characteristics

Details LCD panel type, resolution, viewing angles, luminance, and contrast ratios for optimal display performance.

Signal and Resolution

Specifies video input signal types, sync signal formats, and the monitor's maximum supported display resolution.

Power, Environment, Dimensions & Weight

Outlines power supply requirements, operating temperature/humidity ranges, and physical dimensions including weight.

SAFETY PRECAUTIONS

Component Safety Warnings

Highlights critical safety components and warns against unauthorized modifications to prevent hazards.

LCD Module Handling

Provides essential guidelines for the safe handling and mounting of the LCD module to prevent damage.

SERVICING PRECAUTIONS

General Servicing Practices

Outlines fundamental safety rules and procedures to be followed before and during equipment servicing.

Electrostatic Discharge (ESD) Protection

Details methods and precautions for handling sensitive electronic components to prevent ESD damage.

REPAIR PROCEDURES

General Soldering Guidelines

Provides instructions for using soldering irons, maintaining tips, and ensuring clean solder joints.

Component Removal & Replacement

Covers procedures for safely removing and replacing ICs, transistors, diodes, fuses, and resistors.

CIRCUIT BOARD REPAIR

Copper Pattern Repair at IC Connections

Method for repairing damaged copper traces connected to IC pins using jumper wires.

Copper Pattern Repair at Other Connections

Technique for fixing damaged copper traces at non-IC connections using jumper wires.

TIMING CHART

DISASSEMBLY GUIDE

BLOCK DIAGRAM

BLOCK DIAGRAM DESCRIPTIONS

Video Controller Part Description

Explains the function of the video signal processing unit, including scaler and LVDS transmitter.

Power Part Description

Details the voltage regulators, power conversion, and inverter operation for the backlight lamps.

MICOM Part Description

Describes the microcontroller unit, its memory, and H/V sync signal processing.

LIPS BOARD POWER OPERATION

Primary Power Stages

Covers EMI components, input rectification, filtering, and energy transfer circuits of the power board.

Secondary Power Stages

Details output rectification, isolation, and signal collection feedback mechanisms for stable power.

ADJUSTMENT

Port Setup

Instructions for configuring the system port necessary for executing adjustments and software.

EDID Configuration

Guide for reading and writing Extended Display Identification Data (EDID) for display compatibility.

SERVICE OSD MENU

OSD Functionality

Details various service functions accessible via the On-Screen Display menu, including initialization and calibration.

TROUBLESHOOTING GUIDE

No Power Issues

Diagnostic flowchart and checks for troubleshooting when the monitor fails to power on.

NO RASTER ISSUES

No Raster (OSD Not Displayed) - LIPS

Troubleshooting steps for no display output originating from the LIPS (power) board.

No Raster (OSD Not Displayed) - Main

Troubleshooting steps for no display output originating from the main control board.

DPM TROUBLESHOOTING

DPM Specific Issues

Diagnostic steps for resolving problems related to the Digital Picture Mode (DPM) functionality.

EXPLODED VIEW

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