Philips 21PT2327/69 User Manual

Published by WS 0764 BG CD Customer Service Printed in the Netherlands Subject to modification EN 3122 785 17130
©
Copyright 2007 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronic,
mechanical, photocopying, or otherwise without the prior permission of Philips.
Colour Television Chassis
TC8.1A
CA
H_17130_000.eps
240407
Contents Page
1. Technical Specifications, Connections, and Chassis
Overview 2
2. Safety Instructions, Warnings, and Notes 4
3. Directions for Use 5
4. Mechanical Instructions 6
5. Service Modes, Error Codes, and Fault Finding 8
6. Block Diagrams, Test Point Overview, and
Waveforms
Block Diagram Mono Carrier 15
7. Circuit Diagrams and PWB Layouts
Mono Carrier (A) 16 17-18
CRT Panel (B) 19 20
Side AV & I/O Panel (E) 21 21
8. Alignments 23
9. Circuit Descriptions, Abbreviation List, and IC Data
Sheets 28
Abbreviation List 33
10. Spare Parts List 34
11. Revision List 37

Philips 21PT2327/69 Specifications

General

Screen size	21 inches
Display Type	CRT
Aspect Ratio	4:3
Tuner	Analog
Sound Output	Mono
Model	21PT2327/69

Summary

Technical Specifications, Connections, and Chassis Overview

1.1 Technical Specifications

Covers display type, screen size, tuning system, and sound parameters.

1.2 Side and Rear Connections

Safety Instructions, Warnings, and Notes

2.1 Safety Instructions

Procedures and requirements for safe repair operations and component handling.

2.3 Warnings

Highlights specific hazards and critical precautions for service personnel.

2.4.5 Practical Service Precautions

Essential safety precautions for service personnel to avoid electrical shock hazards.

Mechanical Instructions

4.1 Set Disassembly

4.2 Assy / Board Removal

Procedures for removing internal assemblies and Printed Wiring Boards (PWBs).

Service Modes, Error Codes, and Fault Finding

5.1 Service Modes

5.2 Error Codes

5.3 Fault Finding

Troubleshooting guides and flowcharts for diagnosing and resolving common faults.

5.3.2 No Picture, No Sound, No Raster, B+ OK

Troubleshooting flowchart for specific fault: no picture, sound, raster, but B+ is OK.

5.3.3 No Picture, Raster and Sound OK

Troubleshooting flowchart for specific fault: no picture, but raster & sound are OK.

5.3.4 Picture OK, No Sound

Troubleshooting flowchart for specific fault: picture is OK, but no sound.

5.3.5 No Colour

Troubleshooting flowchart for specific fault: no colour displayed on the screen.

5.3.6 One Horizontal Line

Troubleshooting flowchart for specific fault: only one horizontal line is visible.

5.3.7 Some Waveforms:

5.3.8 Important Voltages Overview

Block Diagrams, Test Point Overview, and Waveforms

Block Diagram Mono Carrier

Circuit Diagrams and PWB Layouts

Mono Carrier

Circuit diagram for the main mono carrier Printed Wiring Board (PWB).

Layout Mono Carrier (Top Side)

CRT Panel

Layout CRT Panel (Top Side)

Alignments

8.1 General Information

8.2 Factory Mode (Service Menu, Service Mode)

8.2.4 Factory Mode Overview

8.2.5 Group List Overview

8.3 Alignment procedure

Step-by-step guide for performing various calibration alignments on the TV.