Sony KV-21FT1K - Service Manual

1
SERVICE MANUAL
FE-2
CHASSIS
MODEL COMMANDER DEST CHASSIS NO.
KV-21FT1B RM-887 French SCC-Q54A-A
KV-21FT1E RM-887 Spanish SCC-Q53A-A
MODEL COMMANDER DEST CHASSIS NO.
KV-21FT1K RM-887 OIRT SCC-Q51A-A
KV-21FT1U RM-887 UK SCC-Q52A-A
RM-889

Summary

SECTION 1 GENERAL

Switching On the TV and Automatically Tuning

Guides users through initial TV setup and automatic channel tuning process.

Introducing and Using the Menu System

Troubleshooting

Solutions for common picture and sound problems encountered with the TV.

SECTION 2 DISASSEMBLY

Rear Cover Removal

Procedure for safely removing the rear cover of the television set.

Chassis Removal and Refitting

Steps involved in removing and re-installing the main chassis assembly.

Service Position

Picture Tube Removal

Detailed instructions for safely removing the CRT picture tube, including anode cap handling.

SECTION 3 SET-UP ADJUSTMENTS

3-1. Beam Landing

Procedure for adjusting beam landing using a pattern generator and purity controls.

3-2. Convergence

Steps for adjusting horizontal and vertical convergence for optimal picture alignment.

Geometry Adjustment

YCH Adjustment

TLV Adjustment

Screen Corner Convergence

3-3. Focus Adjustment

Adjusting the flyback transformer focus control for sharp picture clarity.

3-4. Screen (G2), White Balance

Adjusting screen grid (G2) and white balance for accurate color reproduction.

SECTION 4 CIRCUIT ADJUSTMENTS

4-1. Electrical Adjustments

Performing electrical adjustments using the service remote commander.

Sub Brightness Adjustment

Sub Contrast Adjustment

Sub Colour Adjustment

Deflection System Adjustment

Tuner AGC Adjustment

4-2. TEST MODE 2

SECTION 5 DIAGRAMS

5-1. CIRCUIT BOARD LOCATION

5-3. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS

Provides schematic diagrams and printed wiring board layouts for service reference.

5-2. BLOCK DIAGRAMS (1)

Sony KV-21FT1K Specifications

General

Screen Size	21 inches
Display Technology	CRT
Aspect Ratio	4:3
Audio Output	Stereo
Inputs	Composite, RF
Audio	NICAM Stereo