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LG Flatron L1722P User Manual

LG Flatron L1722P
28 pages
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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. : CL-62
MODEL: L1722P (L1722PFM.AN**EF)
( ) **Same model for Service
http://www.wjel.net

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LG Flatron L1722P Specifications

General IconGeneral
Screen Size17 inches
Panel TypeTN
Resolution1280 x 1024
Aspect Ratio5:4
Brightness250 cd/m²
Contrast Ratio800:1
Response Time5 ms
Input ConnectorsVGA
Viewing Angle160° (horizontal)
InterfaceVGA

Summary

DVI-D Connector Pinout

DVI-D Pin Configuration

Details pin assignments and signals for the DVI-D connector.

Safety and Handling Precautions

Critical Safety Components

Highlights critical safety components requiring specific replacement parts.

LCD Module Handling Guidelines

Provides guidelines for safely handling the LCD module and backlight unit.

General Service Warnings and Cautions

Advises on electrical shock hazards and general service cautions.

Servicing Precautions and ESD Handling

General Servicing Guidelines

Outlines essential general precautions to follow before and during service.

ESD Device Handling Procedures

Details methods to prevent damage to ES devices from static electricity.

Component Replacement and Soldering Procedures

Soldering Techniques and Best Practices

Provides best practices for soldering, including tool usage and techniques.

Integrated Circuit (IC) Replacement

Step-by-step guide for removing and replacing integrated circuits (ICs).

Transistor Replacement Procedures

Methods for removing and replacing discrete transistors, including power types.

Diode, Fuse, and Resistor Replacement

Instructions for replacing diodes, fuses, and conventional resistors.

Printed Circuit Board (PCB) Repair

PCB Foil Repair Overview

Explains how heat can damage foil and provides guidelines for repair.

Jumper Wire Repair for IC Connections

Details using jumper wires to repair copper patterns at IC connections.

Jumper Wire Repair for Other Connections

Describes jumper wire repair for connections other than IC pins.

Video Signal Timing Specifications

Timing Chart by Video Mode

Details timing specifications for various video signal modes.

Monitor System Block Diagram

Block Diagram Overview

Visual representation of the monitor's main functional blocks and their connections.

Block Diagram Component Functions

Video Controller Functionality

Describes the function of the video controller, including signal amplification and conversion.

Power Supply Component Description

Details the power supply components, regulators, and voltage distribution.

MICOM and EEPROM Functionality

Outlines the MICOM part's role in control data, sync detection, and EEPROM storage.

LIPS Board: Diagram and Operation

LIPS Board Schematic

Schematic of the LIPS board, showing power conversion and signal flow.

LIPS Board Operation Details

Explains the function of each section of the LIPS board, from EMI components to signal collection.

Monitor EDID Adjustment Procedures

Windows EDID V1.0 User Guide

Guide for using Windows EDID V1.0 for monitor configuration.

EDID Port Setup

Instructions for setting up the communication port required for EDID operations.

EDID Data Read/Write

Procedures for reading, writing, and editing monitor EDID data using software.

Service OSD Menu and Cable Connection

Accessing the Service OSD

Step-by-step instructions to access the monitor's service OSD menu.

Service OSD Menu Features

Details the specific functions and adjustments available within the service OSD menu.

Test Cable Connection Diagram

Illustrates the correct cable connections for testing and servicing the monitor.

Troubleshooting Guide

No Power Issues

Diagnostic flowchart and waveforms for troubleshooting 'No Power' conditions.

Troubleshooting Guide

No Raster (LIPS Related)

Diagnostic steps for 'No Raster' issues specifically related to the LIPS power board.

Troubleshooting Guide

No Raster (GM5221 Related)

Diagnostic flowchart for 'No Raster' issues involving the GM5221 video controller.

Troubleshooting Guide

Trouble in DPM

Flowchart and waveforms for diagnosing 'Trouble in DPM' (Display Power Management).

Monitor Wiring Diagram

Wiring Diagram Details

Illustrates the internal wiring and connector assignments of the monitor.

Monitor Exploded View

Exploded View Component Layout

Diagram showing the monitor disassembled into its component parts.

Exploded View Parts List

Parts List: Numbers and Descriptions

Comprehensive list of part numbers and descriptions for monitor components.

Replacement Parts List

Capacitor Replacement Parts

Catalog of replacement capacitors with part numbers and specifications.

Diode Replacement Parts

Catalog of replacement diodes with part numbers and specifications.

Replacement Parts List

Integrated Circuit (IC) and Transistor Parts

Lists of replacement diodes, integrated circuits (ICs), and transistors.

Resistor Replacement Parts

Catalog of replacement resistors with part numbers and specifications.

Replacement Parts List

Resistor and Miscellaneous Component Parts

Details replacement resistors, miscellaneous parts, and inductor components.

Control Board and USB Board Parts

Lists components for the control board and USB board assemblies.

Monitor Schematic Diagrams

Scaler Circuit Schematic

Circuit diagram for the monitor's scaler component.

Monitor Schematic Diagrams

Power Supply Circuit Schematic

Circuit diagram detailing the monitor's power supply unit.

Monitor Schematic Diagrams

Connector Interface Circuit Schematic

Circuit diagram illustrating the monitor's connector interfaces and related components.

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