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TFT-LCD TV
Chassis GJA26SEU
GJA32SEU
GJA37SEU
GJA40SEU
GJA46SEU
Model LE26S81BX
LE26S86BD
LE32S81BX
LE37S81BX
LE40S81BX
LE46S81BX
SERVICE Manual
TFT-LCD TV Fashion Feature
- Luxurious Slim Design
- Supreme Picture Quality
- Supreme Sound Quality
- Supreme Convenience Quality
- Convenience for Users
Copyright Trademarks
2007 by Samsung Electronics Co., Ltd. Samsung is the registered trademark of Samsung
Electronics Co., Ltd.
All rights reserved.
LE26S81BX/LE32S81BX/LE37S81BX/LE40S81BX /
This manual may not, in whole or in part, be copied, LE46S81BX and Macmaster Cable Adapter are
photocopied, reproduced, translated, or converted to any trademarks of Samsung Electronics Co., Ltd.
electronic or machine readable form without prior
written permission of Samsung Electronics Co., Ltd. Macintosh and Power Macintosh are trademarks of
Apple Computer, Inc.
LE26S81BX/LE32S81BX/LE37S81BX/LE40S81BX /
LE46S81BX Service Manual All other trademarks are the property of their respective
owners.
First edition June 2007.
Printed in Korea.
ii
Contents
1. Precautions .........................................................................................................................................................1-1
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 ..........................................................................................................................................2-1
2
2-1 Fashion Feature ............................................................................................................................................. 2-1
2-2 LE26S81BX Specifications .............................................................................................................................. 2-2
2-3 LE32S81BX Specifications .............................................................................................................................. 2-3
2-4 LE37S81BX Specifications .............................................................................................................................. 2-4
2-5 LE40S81BX Specifications .............................................................................................................................. 2-5
2-6 LE46S81BX Specifications .............................................................................................................................. 2-6
2-7 Spec Comparison .......................................................................................................................................... 2-6
2-8 Option Specification ....................................................................................................................................... 2-7
3. Alignments and Adjustments .................................................................................................................................3-1
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 ....................................................................................................................................... 3-12
3-5 Software Upgrade ....................................................................................................................................... 3-15
4. Troubleshooting ................................................................................................................................................4-1
4
4-1 First Checklist for Troubleshooting .....................................................................................................................4-1
4-2 Checkpoints by Error Mode .............................................................................................................................. 4-2
5. Exploded View and Parts List .................................................................................................................................5-1
5
5-1 LE26S81BX Exploded View.............................................................................................................................. 5-1
5-2 LE26S81BX Parts list .................................................................................................................................... 5-2
5-3 LE32S81BX Exploded View.............................................................................................................................. 5-3
5-4 LE32S81BX Parts list .................................................................................................................................... 5-4
5-5 LE37S81BX Exploded View.............................................................................................................................. 5-5
5-6 LE37S81BX Parts list .................................................................................................................................... 5-6
5-7 LE40S81BX Exploded View.............................................................................................................................. 5-7
5-8 LE40S81BX Parts list .................................................................................................................................... 5-8
6. Electrical Parts List .............................................................................................................................................6-1
6
6-1 LE26S81BX Parts List .................................................................................................................................... 6-1
6-2 LE32S81BX Parts List ................................................................................................................................. 6-22
6-3 LE37S81BX Parts List ................................................................................................................................. 6-38
6-4 LE40S81BX Parts List ................................................................................................................................. 6-55
7. Block Diagram ...................................................................................................................................................7-1
7
Contents
8. Wiring Diagram ...................................................................................................................................................8-1
8
8-1 LE26S81BX / LE32S81BX / LE37S81BX / LE40S81BX / LE46S81BX 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 .............................................................................................................................................9-1
9
10. Operating Instructions and Installation.....................................................................................................................10-1
1
10-1 Front ...................................................................................................................................................... 10-1
10-2 Connection Panel ....................................................................................................................................... 10-2
10-3 Remote control .......................................................................................................................................... 10-4
10-4 Installing the Stand .................................................................................................................................... 10-5
10-5 Installing the Wall Mount Kit ........................................................................................................................ 10-5
11. Disassembly and Reassembly ..............................................................................................................................11-1
1
11-1 Disassembly ............................................................................................................................................. 11-1
11-2 Reassembly ............................................................................................................................................. 11-5
12. PCB Diagram ...................................................................................................................................................12-1
1
13. Circuit Descriptions .............................................................................................................................................13-1
1
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 ............................................................................................................................................. 14-7
14-4 Panel Description .................................................................................................................................... 14-11
Samsung Electronics Co.,Ltd.
- This Service Manual is a property of 416, Maetan-3Dong, Yeongtong-Gu, Suwon City,
Samsung Electronics Co., Ltd. Gyeonggi-Do, Korea, 443-742
Any unauthorized use of Manual can be Printed in Korea
punished under applicable International P/N : BN82-00184A-00
and/or domestic law. URL : http://itself.sec.samsung.co.kr/