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LG StudioWorks 710S User Manual

LG StudioWorks 710S
35 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.
MODEL:
StudioWorks 710E
(710BK-AL**A)
StudioWorks 710S
(710BK-AL**M, AL**B)
StudioWorks 710B
(710BK-AL**E)
CHASSIS NO. : CA-131
( ) **Same model for Service
*Same looking with new chassis.
Issue Date; 2003. 11.
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LG StudioWorks 710S Specifications

General IconGeneral
Screen Size17 inches
Viewable Image Size16.0 inches
Maximum Resolution1280 x 1024
Refresh Rate75 Hz
Aspect Ratio4:3
Panel TypeCRT
Horizontal Scan Rate30 - 70 kHz
Vertical Scan Rate50 - 160 Hz
Bandwidth110 MHz
Input SignalAnalog RGB
Input Connectors15-pin D-sub
Power Consumption85W (typical)
Weight16 kg

Summary

Safety Precautions

X-Radiation Prevention

The only potential source of X-radiation is the picture tube. Basic precaution is to keep high voltage at factory level.

Operating Instructions

Description of Block Diagram

Adjustment Procedures

Adjustment: B+ Voltage Check

Procedure to check and verify B+ voltage using a cross hatch pattern at Mode 4.

Adjustment: High-Voltage Level

Procedure to adjust high voltage to 25.8kV±0.1 kVdc using specific alignment commands.

Troubleshooting Guide

No Power Troubleshooting

Diagnostic flow for issues where the monitor has no power, checking fuse, voltage, and ICs.

No Character Troubleshooting

Diagnostic flow for missing display characters, checking IC302, IC303 signals, and CRT socket.

No Raster Troubleshooting

Diagnostic flow for missing raster, checking power indicator, G1 voltage, and CDT heat voltage.

No Horizontal Deflection Troubleshooting

Diagnostic flow for no horizontal picture, checking Q706, B+ voltage, FBT, and Q705 waveform.

Horizontal Linearity Troubleshooting

Diagnostic flow for unbalanced horizontal linearity, checking IC401, Q711-Q716, and L703.

No Vertical Deflection Troubleshooting

Diagnostic flow for no vertical picture, checking IC601, IC701 signals and voltages.

OSD Troubleshooting

Diagnostic flow for OSD issues, checking IC302 voltage and waveform, and peripheral circuits.

DPM Troubleshooting

Diagnostic flow for Display Power Management (DPM) failures, checking IC401 signals and DPM table.

No Degaussing Troubleshooting

Diagnostic flow for degaussing failure, checking IC401, Q953, P902, and RL901.

No Tilt (No Rotation) Troubleshooting

Diagnostic flow for tilt/rotation issues, checking IC401, voltage lines, and Q503 emitter.

Schematic Diagram

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