Toshiba 21V53 User Manual

SERVICE MANUAL
PRINTED IN UK. 2005 C
COLOUR TELEVISION
21V53
TOSHIBA

Toshiba 21V53 Specifications

General

Brand	Toshiba
Model	21V53
Category	TV
Language	English

Summary

Service Menu Operations

Entering and Navigating the Service Menu

Steps to enter service menu and select parameters using remote control.

Using Colour Buttons for Adjustments

Explains color button functions like AVL, Picture Mode, V-Scan Disable, AGC/IF.

IF Adjustments

Details IF Coarse/Fine adjustments for general and L-prime.

IF Adjustments - Positive Systems

IF Positive Adjustment with L' Systems

Procedure for IF positive adjustment using SECAM-L pattern and specific settings.

Automatic Gain Control (AGC)

AGC Adjustment Procedure

Steps for AGC adjustment using RF signal and service menu parameters.

Vertical Linearity (VLIN)

VLIN Adjustment

Adjusting VLIN parameter to make the circle test pattern appear round.

Geometric Adjustments (50 Hz)

Vertical Size (VS1A) for 4:3

Adjusting vertical size for 4:3 aspect ratio using circle test pattern.

Vertical Size (VS1B) for 16:9

Adjusting vertical size for 16:9 aspect ratio using circle test pattern.

Geometric Adjustments (60 Hz)

Vertical Size (VS2A) for 4:3

Vertical Size (VS2B) for 16:9

White Balance Adjustment

White Point Adjustment (WR, WG, WB)

Adjusting RED, GREEN, BLUE strength in white using a Colour Analyzer.

Bias for RED (BR)

Adjusting the strength of RED in black for picture balance.

Picture Bias and Regulation

Bias for GREEN (BG)

Automatic RGB Peak Regulation (APR)

Tuner Settings

Thomson CTF 5510 Tuner Parameters

Explains parameters and settings for Thomson CTF 5510 tuner.

Option Bytes - Peripheral and Reception

Peripheral Options (OP1)

Reception Standard Options (OP2)

Option Bytes - Video

Video Options (OP3)

Option Bytes - TV Features and Channels

TV Features (OP4)

Channel Tables (OP5)

Option Bytes - Teletext

Teletext Options (TX1)