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Daewoo DTQ-14N3FC User Manual

Daewoo DTQ-14N3FC
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Service Manual
Color Television
DAEWOO ELECTRONICS CO., LTD.
CHASSIS
:
CN-115I
NTSC-M SYSTEM
MODEL
:
DTQ-14N2FC/FS/FSP
DTQ-20N2FC/FS/FSP
DTQ-14J2FC/FS/FSP
DTQ-20J2FC/FS/FSP
DTQ-14N3FC/FS/FSP
DTQ-20N3FC/FS/FSP
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Daewoo DTQ-14N3FC Specifications

General IconGeneral
BrandDaewoo
ModelDTQ-14N3FC
CategoryTV
LanguageEnglish

Summary

PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO - VIDEO PRODUCTS

SAFETY CHECKS

Safety checks to be performed after correcting the original service problem.

FIRE & SHOCK HAZARD

Precautions regarding fire and electrical shock hazards during servicing.

X-RADIATION

Guidelines and precautions related to X-radiation emission from the picture tube.

IMPLOSION

Safety precautions concerning the picture tube's implosion protection system.

TIPS ON PROPER INSTALLATION

Recommendations for safe and proper installation of the television receiver.

CONTROL VIEW

Overview of Your Equipment

General introduction to the TV's controls, buttons, and terminals.

Your TV's Front Panel

Description of the controls and indicators on the front panel of the TV.

Your TV's Back Panel

Details about the antenna terminal and connections on the back panel.

IMPORTANT SERVICE NOTES

X-RAY RADIATION PRECAUTION

Specific precautions and checks for X-ray radiation protection.

SAFETY PRECAUTION

General safety warnings and precautions for service personnel.

PRODUCT SAFETY NOTICE

Information on special safety-related characteristics of parts.

SERVICE NOTES

General notes and procedures for servicing the equipment.

BLOCK DIAGRAM

GENERAL ADJUSTMENTS

GENERAL

Basic adjustments for optimal receiver performance upon installation.

VERTICAL HEIGHT ADJUSTMENT

Procedure for adjusting the vertical height of the picture.

FOCUS ADJUSTMENT

Steps to adjust the focus for a sharp picture.

RF AGC ADJUSTMENT

How to adjust the RF Automatic Gain Control for optimal reception.

HIGH VOLTAGE CHECK

Procedure for checking the high voltage output of the receiver.

X-RADIATION PROTECTION CIRCUIT TEST

Testing the X-radiation protection circuit after service.

CRT GRAY SCALE ADJUSTMENT

Adjusting the gray scale for accurate color reproduction.

MAIN B+(103V) ADJUSTMENT

Procedure for adjusting the main B+ voltage.

SUB-BRIGHTNESS ADJUSTMENT

Adjusting the sub-brightness for proper picture blooming.

CONVERGENCE MAGNET ASSEMBLY POSITIONING

Mechanical positioning of convergence magnets and yoke.

COLOR PURITY ADJUSTMENT

Adjusting color purity for accurate color display.

CENTER CONVERGENCE ADJUSTMENT

Adjusting convergence magnets for proper picture centering.

CIRCUMFERENCE CONVERGENCE ADJUSTMENT

Adjusting the deflection yoke for circumference convergence.

PICTURE IF/AFT ADJUSTMENTS

Alignment procedures for the Picture IF and AFT circuits.

TROUBLE SHOOTING CHARTS

NO POWER

Troubleshooting flowchart for no power condition.

NO PICTURE

Troubleshooting steps for a television with no picture display.

NO SOUND

Troubleshooting flowchart for issues with no sound output.

CH DON'T STOP

Troubleshooting steps for channel selection not stopping.

NO COLOR

Troubleshooting guide for the absence of color in the picture.

NO VERTICAL DEFLECTION

Steps to troubleshoot missing vertical deflection in the picture.

ON SCREEN DISPLAY DOES NOT OPERATE

Troubleshooting for the On-Screen Display functionality.

REMOTE CONTROL DOES NOT OPERATE

Steps to diagnose and fix remote control issues.

DESCRIPTION OF SEMICONDUCTORS

PIN ASSIGN OF IC LC864616A(1701)

EXPLODED VIEW DTQ-14N2FC

SCHEMATIC DIAGRAM

PARTS LIST DTQ-14N2FC

OPTION LIST CN-115I MODEL LINE-UP

OPTION LIST CN-115I MODEL LINE-UP (Cont.)

CN-115I AV OPTION

ENGINEER NOTE

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