LG StudioWorks 700E User Manual

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.
MENU SELECT
MODEL: StudioWorks 700S (700BJ-AL**M, AL**B)
StudioWorks 700B (700BJ-AL**E)
StudioWorks 700E (700BJ-AL**A, AL**K)
CHASSIS NO. : CA-131
( ) **Same model for Service
*Same looking with new chassis.
Issue Date; 2003. 5.

LG StudioWorks 700E Specifications

General

Screen Size	17 inches
Viewable Image Size	16 inches
Max Resolution	1280 x 1024
Recommended Resolution	1024 x 768
Aspect Ratio	4:3
Panel Type	CRT
Horizontal Frequency	30-70 kHz
Vertical Frequency	50-160 Hz
Input Signal	Analog RGB
Input Connector	15-pin D-sub
Power Consumption	90W
Compliance	UL, CSA, FCC

Summary

Specifications

Picture Tube, Signal, and Power Specs

Details on the monitor's picture tube, signal inputs, and power supply specifications.

Display Area, Environment, and Dimensions

Information on display area, environmental conditions, and physical dimensions including weight.

Safety Precautions

Component Warnings and Servicing Safety

Highlights critical safety components, general servicing safety, and fire/shock hazard prevention.

Implosion and X-Radiation Safety

Discusses implosion protection, X-radiation prevention, and necessary precautions during service.

Timing Chart

Operating Instructions

Front Control Panel Functions

Explains the operation of the monitor's front control panel buttons and their functions.

Wiring Diagram

Disassembly Procedures

Cover and Chassis Removal

Step-by-step guide for removing the monitor's tilt/swivel, back cover, and main chassis assembly.

Block Diagram Overview

Block Diagram Description

Power, Protection, and Oscillation Circuits

Describes SMPS, X-ray protection, Micom, and horizontal/vertical oscillation circuits.

Deflection, Correction, and Video Circuits

Explains DC to DC converter, correction circuits, deflection outputs, and video amplifier functions.

Image Rotation and Blanking Circuits

Details the image rotation circuit and blanking/brightness control functions.

Adjustment Procedures

General Info, Degaussing, and Voltage Checks

Overview of adjustment needs, degaussing, and preliminary B+ voltage checks.

High-Voltage, Factory Mode, and White Balance

Procedures for adjusting high voltage, factory presets, and white balance settings.

Drive, EDID, and Focus Adjustments

Steps for adjusting drive signals, inputting EDID data, and performing focus adjustments.

Troubleshooting Guide

Power, Character, and Raster Issues

Flowcharts for diagnosing no power, no character, and no raster problems.

Deflection, Linearity, and OSD Issues

Flowcharts for troubleshooting horizontal/vertical deflection, linearity, and OSD problems.

DPM, Degaussing, and Tilt/Rotation Issues

Flowcharts for diagnosing DPM, degaussing, and tilt/rotation malfunctions.

Exploded View

Exploded View Parts List

Replacement Parts List

Pin Configuration

EEPROM and TDA4867J Pinouts

Details pin configurations and functions for M24C08 EEPROM and TDA4867J IC.

TDA4841PS Pinout and Block Diagram

Provides the pinout for the TDA4841PS IC and its associated block diagram.

Schematic Diagram

Printed Circuit Board Layouts

Control and Main Board Layouts

Shows component and solder sides of the monitor's control and main circuit boards.