Sony TRINITRON KV-21RS50 User Manual

SERVICE MANUAL BA-3 chassis
MODEL
KV-21PM2
COMMANDER
RM-Y146
DE$T r
MX
CHASSIS NU.
SCC-J95G-A
KV-21PS2
RM-Y145
MX
SCC-J95H-A
KV-21R22
RM-Y146
E
SCC-J94Q-A
KV-21R22C
RM-Y146
E
SCC-J94M-A
KV-21RD2
RM-Y146
E
SCC-J94R-A
KV-21RS22C
RM-Y145
E
SCC-J94L-A
KV-21RS50
RM-Y145
E
SCC-J94P-A
KV-21RS50C
RM-Y145
E
SCC-J94N-A
KV-21SD2
RM-Y145
E
SCC-J94S-A

Sony TRINITRON KV-21RS50 Specifications

General

Screen Size	21 inches
Display Type	CRT
Aspect Ratio	4:3
Screen Type	Flat
Audio Output Mode	Mono
Remote Control	Yes
TV Standard	PAL/SECAM
Connectors	SCART
Inputs	Composite video

Summary

SECTION 1 GENERAL

Connecting the TV

Guide to connecting the television to various antenna types.

Using the Remote Control

SECTION 2 DISASSEMBLY

2-1. REAR COVER REMOVAL

2-2. A BOARD REMOVAL

2-4. PICTURE TUBE REMOVAL

Picture Tube Removal

Detailed steps for safely removing the CRT picture tube.

SECTION 3 SET-UP ADJUSTMENTS

3-1. BEAM LANDING

Adjusting the electron beam for proper picture alignment and purity.

3-2. CONVERGENCE

Aligning red, green, and blue electron beams for sharp color reproduction.

3-5. SETTING THE SERVICE ADJUSTMENT MODE

Procedure to access and navigate the TV's service menu.

3-6. WHITE BALANCE ADJUSTMENTS

SECTION 4 SAFETY RELATED ADJUSTMENTS

HV HOLD-DOWN CONFIRMATION AND READJUSTMENTS

Verifying and adjusting high voltage circuits for safety.

HOLD-DOWN OPERATION CONFIRMATION

Checking specific circuit operations under load.

HOLD-DOWN READJUSTMENT

B+ VOLTAGE CONFIRMATION AND ADJUSTMENT

Verifying and adjusting the main power supply voltage (B+).

SECTION 5 CIRCUIT ADJUSTMENTS

5-1. ELECTRICAL ADJUSTMENT BY REMOTE COMMANDER

Performing electrical alignments using the TV's remote control.

5-2. A BOARD ADJUSTMENTS