LG RT-21FD90VQ - User Manual

COLOR TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : MC-049B
MODEL: RT-21FD90VQ/VT
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

Summary

SAFETY PRECAUTIONS

General Guidance

General servicing safety tips, handling components, and precautions.

X-RAY Radiation

Information on X-RAY radiation sources and protection measures.

AC Leakage Current Checks

Procedures for checking AC leakage current for safety.

SPECIFICATIONS

ADJUSTMENT INSTRUCTIONS

Application, Notes, and Focus Voltage

Purity & Convergence Adjustment

Details procedures for purity and convergence adjustments.

Screen & White Balance Adjustment

Guides on adjusting screen voltage and white balance.

BRIGHTNESS & DEFLECTION ADJUSTMENT

Sub Brightness Adjustment

Deflection Setting Data Adjustment

TROUBLE SHOOTING

Troubleshooting Flowcharts

Provides diagnostic flowcharts for common issues.

BLOCK DIAGRAM

System Block Diagram

REPLACEMENT PARTS LIST

Component Parts Listing

CIRCUIT DIAGRAM

MC-049 B Chassis Circuit Diagram

SERVICE SHEET

SVC Sheet Reference

LG RT-21FD90VQ Specifications