TFT-LCD TV
Chassis GBD26KS GBD32KS GBD40KS GBD32KS
Model LA26R71B LA32R71B LA40R71B LA32R71W

SERVICE

Manual

Feature

- Luxurious Slim Design - Supreme Picture Quality - Supreme Sound Quality - Supreme Convenience Quality - Convenience for Users
Copyright 2006 by Samsung Electronics Co., Ltd. All rights reserved. This manual may not, in whole or in part, be copied, photocopied, reproduced, translated, or converted to any electronic or machine readable form without prior written permission of Samsung Electronics Co., Ltd. LA26R71B / LA32R71B / LA40R71B / LA32R71W Service Manual First edition March 2006. Printed in Korea. ii
Trademarks Samsung is the registered trademark of Samsung Electronics Co., Ltd. LA26R71B / LA32R71B / LA40R71B / LA32R71W and Macmaster Cable Adapter are trademarks of Samsung Electronics Co., Ltd. Macintosh and Power Macintosh are trademarks of Apple Computer, Inc. All other trademarks are the property of their respective owners.

Contents

1. Precautions 1-1-1 Safety Precautions 1-1 1-2 Servicing Precautions 1-2 1-3 Static Electricity Precautions 1-2 1-4 Installation Precautions 1-3
2. Product specifications 2-2-1 Fashion Feature 2-1 2-2 LA26R71B Specifications 2-2 2-3 LA32R71B / LA32R71W Specifications 2-3 2-4 LA40R71B Specifications 2-4 2-5 Spec Comparison 2-5 2-6 Option Specification 2-6
3. Alignments and Adjustments 3-3-1 Service Instruction 3-1
3-2 How to Access Service Mode 3-2 3-3 Factory Data 3-3 3-4 Service Adjustment 3-9 3-5 Software Upgrade 3-12

4. Troubleshooting

4-1 First Checklist for Troubleshooting 4-1 4-2 Checkpoints by Error Mode 4-2
5. Exploded View and Parts List 5-5-1 LA26R71B Exploded View 5-1 5-2 LA26R71B Parts list 5-2 5-3 LA32R71B Exploded View 5-3 5-4 LA32R71B Parts list 5-4 5-5 LA32R71W Parts list 5-4 5-6 LA40R71B Exploded View 5-5 5-7 LA40R71B Parts list 5-6
6. Electrical Parts List 6-6-1 LA26R71B Parts List 6-1 6-2 LA32R71B Parts List 6-19 6-3 LA40R71B Parts List 6-35 6-4 LA32R71W Parts List 6-52

7 7. Block Diagram 7-1

8. Wiring Diagram 8-8-1 LA26R71B / LA32R71B / LA40R71B / LA32R71W Wiring Diagram 8-1 8-2 Main Board Layout 8-2 8-3 PIN characteristic 8-3 8-4 Power Board Layout 8-6
9. Schematic Diagrams 9-9-1 Power_Sound Schematic Diagram 9-1 9-2 Jack Schematic Diagram 9-2 9-3 Micom Schematic Diagram 9-3 9-4 SVP-PX/PX-Power/LBE-Option Schematic Diagram 9-4 9-5 Application Schematic Diagram 9-5
10. Operating Instructions and Installation10-10-1 Front 10-1 10-2 Connection Panel 10-2 10-3 Remote control 10-5 10-4 Installing the Stand 10-6 10-5 Installing the Wall Mount Kit 10-6
1 11. Disassembly and Reassembly 11-1 11-1 Disassembly 11-1 11-2 Reassembly 11-5
12. PCB Diagram 12-12-1 26" Main PCB Diagram 12-1 12-2 32", 40" Main PCB Diagram 12-2 12-3 26" SMPS board 12-3 12-4 32" SMPS board 12-4 12-5 40" IP Board 12-5
13. Circuit Descriptions 13-13-1 Block description 13-1 13-2 Main Block 13-3 13-3 SMPS Board 13-4
14. Reference Infomation 14-1 14-1 Technical Terms 14-1 14-2 Pin Assignments 14-4 14-3 Timing Chart 14-6 14-4 Panel Description 14-10
- This Service Manual is a property of Samsung Electronics Co., Ltd. Any unauthorized use of Manual can be punished under applicable International and/or domestic law.
Samsung Electronics Co.,Ltd. 416, Maetan-3Dong, Yeongtong-Gu, Suwon City, Gyeonggi-Do, Korea, 443-742 Printed in Korea P/N : BN82-00139H-01 URL : http://itself.sec.samsung.co.kr/