JVC AV-29MT16/Z User Manual

SERVICE MANUAL
COPYRIGHT © 2006 Victor Company of Japan, Limited
No.YA405
2006/7
FLAT COLOR TELEVISION
YA40520067
AV-21MT16/Z, AV-21MT36/Z,
AV-25MT16
/Z, AV-29MT16/Z,
AV-29MT36
/Z
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41
BASIC CHASSIS
CW2
[AV-21MT16/Z, AV-21MT36/Z] [AV-25MT16/Z] [AV-29MT16/Z, AV-29MT36/Z]
POWER
EXIT
CLOSED
CAPTION
VNR
ECO
CINEMA
SURROUND
BASS
RM-C1287
100+
COLOR

JVC AV-29MT16/Z Specifications

General

Brand	JVC
Model	AV-29MT16/Z
Category	TV
Language	English

Summary

Section 1 Precaution

1.1 Safety Precautions

General safety guidelines for service and product handling, emphasizing manufacturer recommendations.

Section 3 Disassembly

3.1 Disassembly Procedure [AV-21MT16/Z, AV-21MT36/Z]

Step-by-step instructions for disassembling specific models, covering rear cover, speakers, and boards.

3.3 Disassembly Procedure [AV-29MT16/Z, AV-29MT36/Z]

Disassembly steps for larger models, including chassis, AV terminal, control base, and speakers.

3.4 Replacement of Memory IC

3.4.2 Procedure for Replacing Memory IC

Instructions for replacing the memory IC, including power off/on and system constant settings.

3.5 Replacement of Chip Component

3.5.3 Replacement Steps

Detailed steps for removing and installing chip components, with cautions and soldering iron tips.

Section 4 Adjustment

4.1 Adjustment Preparation

Steps and equipment needed for performing adjustments using the remote or test equipment.

4.4 Adjustment Items

Comprehensive list of all adjustable parameters covering B1 voltage, IF, video, deflection, and audio circuits.

4.5 Adjustment Locations

4.6 Basic Operation in Service Menu

4.6.2 Basic Operation in Service Menu

Explains how to enter, select submenus, and set values within the Service Menu.

4.7 Adjustment Procedure

4.7.2 Focus Adjustment

Procedure for adjusting the focus VR on the HVT to achieve a clear picture.

4.7.3 IF Circuit Adjustments

Procedures for IF VCO check and DELAY POINT adjustment to eliminate noise.

4.7.4 Video Circuit Adjustments

4.7.6 Deflection Circuit Adjustments

4.7.8 Purity and Convergence

Purity Adjustment

Procedure for demagnetizing CRT and adjusting purity magnets and deflection yoke for proper convergence.

Dynamic Convergence Adjustment

Section 5 Troubleshooting

5.1 Self Check Functions

Overview of self-check functions, how abnormalities are detected, and power off indication.

Schematic Diagrams

Standard Circuit Diagram

Note on Using Circuit Diagrams

Explanation of symbols, abbreviations, and notations used in circuit diagrams.

Block Diagrams

[AV-21MT16/Z, AV-21MT36/Z, AV-25MT16/Z]

Overall system block diagram illustrating the interconnection of major functional units.

Circuit Diagrams

Main PWB Circuit Diagram [AV-21MT16/Z] (1/4), (2/4) Sheet 1

Detailed circuit diagram for the main PWB, covering specific sections.

Pattern Diagrams

Main PWB Pattern [AV-21MT16/Z, AV-21MT36/Z, AV-25MT16/Z]

Visual layout of components and traces on the main PWB for specific models.

Voltage Charts

[AV-21MT16/Z, AV-21MT36/Z, AV-25MT16/Z]

Table listing voltage measurements at key points on various PWB assemblies.

Waveforms

Main PWB-

Illustrations of typical waveforms measured on the main PWB for troubleshooting.

Parts List

Caution

Safety cautions for replacing parts, emphasizing the use of specified components.

[AV-21MT16/Z, AV-21MT36/Z]

Exploded View Parts List -1

Parts identification for the first exploded view of the TV chassis.

Exploded View Parts List -2 [AV-21MT36/Z]

Printed Wiring Board Parts List [AV-21MT16/Z]

Printed Wiring Board Parts List [AV-21MT36/Z]

[AV-25MT16/Z]

Exploded View Parts List -1

Parts identification for the first exploded view of the AV-25MT16/Z model.

[AV-29MT16/Z, AV-29MT36/Z]

Exploded View Parts List -1

Parts identification for the first exploded view of AV-29MT16/Z and AV-29MT36/Z.

Exploded View Parts List -2 [AV-29MT36/Z]

Printed Wiring Board Parts List [AV-29MT16/Z]

Printed Wiring Board Parts List [AV-29MT36/Z]