Daewoo DTQ-26S1FC User Manual

DAEWOO ELECTRONICS CO., LTD.
OVERSEAS SERVICE DEPT.
Service Manual
Color Television
CHASSIS
:
CN-200I/A
NTSC-M SYSTEM
MODEL
:
DTQ-26S1FC/FS/FSP(CN-200I)
DTQ-29S1FCN/FSN/FSP(CN-200I)
DTQ-26S1HC/HS/HSP(CN-200A)
DTQ-29S1HC/HS/HSP(CN-200A)
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Daewoo DTQ-26S1FC Specifications

General

Brand	Daewoo
Model	DTQ-26S1FC
Category	TV
Language	English

Summary

ELECTRICAL SPECIFICATIONS

CONTROL VIEW

Front Panel Controls and Terminals

Details the buttons, controls, and indicators on the front panel of the television.

Back Panel Connections

Describes the input terminals and external connections available on the rear of the television.

BLOCK DIAGRAM (CN-2001)

BLOCK DIAGRAM (CN-200A)

GENERAL ADJUSTMENTS

Vertical Height Adjustment

Procedure to adjust the vertical height of the picture display for optimal viewing.

Focus Adjustment

Steps to achieve a sharp and clear picture by adjusting the focus control.

RF AGC Adjustment

Procedure for adjusting the RF Automatic Gain Control for proper signal reception.

High Voltage Check

Instructions for checking the high voltage output to ensure safe operation.

X-Radiation Protection Circuit Test

Procedure to test the X-radiation protection circuit after servicing.

CRT Gray Scale Adjustment

Steps for adjusting the CRT's gray scale for accurate color reproduction.

Main B+(103V) Adjustment

Procedure to adjust the main B+ (103V) power supply voltage.

Sub-Brightness Adjustment

How to adjust the sub-brightness for optimal picture contrast and detail.

PICTURE IF/AFT ADJUSTMENTS

TROUBLE SHOOTING CHARTS

NO PICTURE TROUBLESHOOTING

NO SOUND TROUBLESHOOTING (CN-2001)

NO SOUND TROUBLESHOOTING (CN-200A)

CHANNEL DON'T STOP TROUBLESHOOTING

NO COLOR TROUBLESHOOTING

NO VERTICAL DEFLECTION TROUBLESHOOTING

ON SCREEN DISPLAY MALFUNCTION

REMOTE CONTROL MALFUNCTION

IC LC864616A(1701) PIN ASSIGNMENT

SEMICONDUCTOR DESCRIPTIONS

LA7674 Semiconductor Details

Provides pin connections and block diagram for the LA7674 VIF/SIF/VIDEO/CHROMA/DEFLECTION IC.

EXPLODED VIEW (DTQ-26S1FC/FS/FSP/HC/HS/HSP)

EXPLODED VIEW (DTQ-29S1FCN/FSN/FSP/HC/HS/HSP)

SCHEMATIC DIAGRAM (CN-200A)

SCHEMATIC DIAGRAM (CN-2001)

IA01(KSE684) BLOCK DIAGRAM