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LG Flatron W2284F User Manual

LG Flatron W2284F
25 pages
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COLOR MONITOR
SERVICE MANUAL
Website:http://biz.LGservice.com
CAUTION
BEFORE SERVICING THE UNIT,
READ TH
E SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS NO. : LM 84D
MODEL: W2284F(W2284F-PFT.K***A**)
( ) **Same model for Service
Internal Use Only
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LG Flatron W2284F Specifications

General IconGeneral
Screen Size22 inches
Resolution1680 x 1050
Panel TypeTN
Aspect Ratio16:10
Brightness300 cd/m²
Contrast Ratio1000:1
Dynamic Contrast Ratio10000:1
Response Time5 ms
ConnectivityVGA, DVI-D
Viewing Angles170° horizontal, 160° vertical

Summary

Monitor Specifications Overview

LCD Panel Characteristics

Details panel type, active display area, pixel pitch, size, and color depth.

Optical Characteristics

Specifies viewing angles by contrast ratio, luminance, and contrast ratio.

Signal Input Specifications

Defines signal types, voltage levels, and input impedance for video signals.

Maximum Resolution

States the display's maximum supported analog and digital resolutions.

Power Supply Details

Outlines power adaptor input, consumption, and LED color states.

Operating Environment

Lists operating temperature, relative humidity, and MTBF for the unit.

Physical Dimensions

Provides the width, depth, and height of the monitor with tilt/swivel.

Weight Specifications

Specifies the net and gross weight of the monitor unit.

Signal Connector Pin Assignment

DVI-D Digital Connector

Details the pinout configuration for the DVI-D digital interface connector.

Safety Precautions

Safety-Related Components

Highlights critical components for safety and warns against unauthorized modifications.

Handling LCD Module

Provides guidelines for safely handling the LCD module and preventing damage.

Servicing Precautions

General Servicing Precautions

Lists essential safety practices before and during receiver servicing operations.

Electrostatically Sensitive Devices

Explains precautions for handling ESD-sensitive components to prevent damage.

General Soldering Guidelines

Details proper techniques, tools, and materials for soldering electronic components.

Component Removal and Replacement

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

Circuit Board Foil Repair

IC Connection Foil Repair

Step-by-step guide for repairing printed circuit board foil patterns at IC connections.

Other Connection Foil Repair

Method for repairing foil patterns at non-IC connections using jumper wires.

Timing Chart

Disassembly Procedure

Block Diagram Overview

Block Diagram Component Descriptions

Video Controller Part

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

Power Supply Part

Describes the power regulators, 12V inverter, and power conversion for ICs.

Microcontroller (MICOM) Part

Details the MICOM, EEPROM, control data, and sync signal distinction.

LIPS Board Block Diagram

Power Operation Description

Explains the functional blocks of the LIPS power board, from EMI components to signal collection.

Adjustment Procedures

EDID Read and Write

Guide for managing EDID data using WinEDID software for monitor configuration.

Service OSD Menu

Service OSD Options

Lists and describes functions like CLEAR ETI, Auto Color, AGING, NVRAM INIT, and R/G/B adjustments.

Troubleshooting Guide

No Power Issues

Troubleshooting steps for when the monitor does not power on or indicator is off.

No Raster or OSD Display

Diagnosing problems where the screen is blank or OSD is not visible, covering LIPS and Main circuits.

DPM Troubleshooting

Steps to resolve issues related to the DPM function, checking sync pulses and PC modes.

Exploded View Parts List

Schematic Diagrams

Scaler Circuit Schematic

Detailed schematic for the display scaler IC (TSUM058CWHJ) and related components.

Wafer Circuit Schematic

Schematic diagram for the wafer section, including EEPROM and interface components.

DC-DC and Power Supply Schematic

Schematic of the power supply circuits, including DC-DC converters and voltage regulators.

Control Key Circuit Schematic

Schematic detailing the user control buttons (Key 0, Key 1) and their interface.

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