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LG StudioWorks E700B User Manual

LG StudioWorks E700B
38 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.
MENU SELECT
MODEL: StudioWorks E700B (EB770G-EA)
StudioWorks E700S (EB770G-NA)
E700S (EB770G-NA)
E700S (EB770G-NA)
CHASSIS NO. : CA-109
FACTORY MODEL: EB770G
*( ) ID LABEL Model No.
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LG StudioWorks E700B Specifications

General IconGeneral
Screen Size17 inches
Display TypeCRT
Maximum Resolution1280 x 1024
Refresh Rate85 Hz
Horizontal Refresh Rate30 - 85 kHz
Vertical Refresh Rate50 - 160 Hz
Bandwidth110 MHz
Input Connector15-pin D-sub
Power Consumption80 W
Dimensions (WxHxD)16.7 x 15.5 x 16.1 inches
Aspect Ratio5:4
Panel TypeCRT
Viewable Size16 inches
Input SignalAnalog RGB
Input ConnectorsVGA (15-pin D-Sub)

Summary

SPECIFICATIONS

Picture Tube & Signal Characteristics

Details on the picture tube size, deflection angle, dot pitch, and signal input types.

Power Supply & Display Area Details

Information on power range, consumption, and active display area dimensions.

Environmental & Physical Specifications

Operating environment, dimensions, and weight of the monitor.

SAFETY PRECAUTIONS

Critical Component and X-Radiation Warnings

Warnings about replacing safety-critical parts and preventing X-radiation exposure.

Fire, Shock, and Implosion Protection

Precautions for fire hazards, electrical shock, and CRT implosion protection.

General Safety Guidelines and Tool Use

General safety advice, including tool usage and degaussing coil connection.

TIMING CHART

Video and Sync Signal Timing Parameters

Table detailing timing parameters for video and sync signals across different modes.

OPERATING INSTRUCTIONS

Monitor Controls and Indicators Overview

Identification of front and rear panel controls and indicators.

Front Panel Button Functions and Shortcuts

Explanation of the function of each button on the control panel.

WIRING DIAGRAM

Internal Component Wiring Layout Diagram

Visual representation of the internal wiring connections within the monitor.

DISASSEMBLY PROCEDURES

Back Cover and Chassis Removal Steps

Step-by-step guide for removing the monitor's back cover and main chassis.

BLOCK DIAGRAM

Monitor Functional Block Diagram Overview

High-level diagram illustrating the main functional blocks of the monitor.

BLOCK DIAGRAM DESCRIPTIONS

Power, X-Ray, and Micom Circuitry Explanations

Descriptions of power supply, X-ray protection, and microprocessor circuits.

Deflection, HV, and Timing Pulse Circuit Descriptions

Explanations for deflection, high voltage, and timing pulse generation circuits.

Blanking, Rotation, and Video Amplification Descriptions

Descriptions of blanking, image rotation, and video signal amplification circuits.

ADJUSTMENT PROCEDURES

General Adjustment Guidelines and Required Tools

Overview of pre-adjustment requirements, tools, and general steps.

Voltage and Preset Calibration Procedures

Procedures for adjusting B+ voltage, high voltage, and factory presets.

White Balance, EDID, and Focus Calibration

Steps for calibrating white balance, loading EDID data, and adjusting focus.

TROUBLESHOOTING GUIDE

No Power and No Character Troubleshooting

Diagnostic steps for 'No Power' and 'No Character' issues.

No Raster and Horizontal Deflection Issues

Troubleshooting for 'No Raster' and 'No Horizontal Deflection' faults.

Vertical Deflection and Linearity Troubleshooting

Diagnostic steps for vertical deflection and horizontal linearity problems.

OSD, DPM, and Degaussing Fault Diagnosis

Troubleshooting for OSD, DPM mode, and degaussing function failures.

Tilt/Rotation and H-Linearity Troubleshooting

Diagnostic steps for tilt/rotation and horizontal linearity issues.

EXPLODED VIEW AND PARTS LISTS

Component Layout Diagram

Diagram showing the physical arrangement of monitor components.

Exploded View Parts Identification

List of parts identified in the exploded view diagram.

Replacement Parts Catalog

Comprehensive list of replacement part numbers and descriptions.

IC PIN CONFIGURATIONS AND DATA SHEETS

Microcontroller S3P863A Pinout and Block Diagram

Pin configuration and internal block diagram for the S3P863A microcontroller.

Video Amplifier and Bias Clamp IC Details

Technical details for LM1269 video amplifier and LM2480 bias clamp ICs.

EEPROM, Deflection Booster, CRT Driver ICs

Data for EEPROM, TDA4866J deflection booster, and LM2469 CRT driver ICs.

TDA4857 Deflection Controller Details and Block Diagram

Pinout, features, and block diagram for the TDA4857 deflection controller.

SCHEMATIC DIAGRAM AND PCB LAYOUTS

Complete Monitor Schematic Diagram

The full circuit schematic for the color monitor.

Control and Main Board PCB Layouts

Layout diagrams for the printed circuit boards (component and solder sides).

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