Aiwa TV-CN143 User Manual

SERVICE MANUAL
DATA
COLOR TELEVISION
TV-CN143 NH
S/M Code No. 09-003-415-9S1
SUPPLEMENT
• This Service Manual contains the additional information “NOTICES BEFORE
REPAIRING”, “DISASSEMBLY INSTRUCTIONS” and “ADJUSTMENT” for the
model TV-CN143 (NH).
If requiring the other information, see Service Manual of TV-CN143 (NH),
(S/M Code No. 09-99B-415-9R1).

Aiwa TV-CN143 Specifications

General

Display Type	Color
Audio Output	Mono
Display Size	14 inches
Type	CRT
Inputs	RF

Summary

Safety and Repair Notices

Repairing Guidelines

To make the best use of this equipment, make sure to obey the following items when repairing (or mending).

Servicing and Checking Notes

When servicing and checking on the TV, note the followings.

Disassembly Procedures

Rear Cabinet Removal

Remove the rear cabinet in the direction of the arrow.

High-Voltage Cap Removal

Includes cautions and steps for removing the anode cap from the CRT.

Anode Cap Reinstallation

Cautions and procedures for reinstalling the anode cap onto the CRT.

Component Removal

NK Circuit Board Removal

Procedure for removing the NK C.B. (PWB, NK).

Main Circuit Board Removal

Procedure for removing the MAIN C.B. (PWB, MAIN).

Adjustment Procedures

Setup and Precautions for Adjustment

Covers signal setup, aging, degaussing, and general precautions before adjusting.

CRT Adjustment

Details beam landing, convergence, and focus adjustments for the CRT.

Electrical Adjustment

Procedures for adjusting components on the Main and NK circuit boards.

Menu Screen Adjustment

Guides for adjusting various settings via the menu screen, like H POS, V POS, V SIZE.

Tuner Adjustment

Procedures for adjusting VCO and SIF coils for tuner performance.

IIC Bus Data Setting

Instructions for setting IIC bus data using the jig remote controller and service mode.