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Copyright Trademarks
2006 by Samsung Electronics Co., Ltd. Samsung is the registered trademark of Samsung
Electronics Co., Ltd.
All rights reserved.
LE26R71B/LE26R72B/LE32R71B/LE32R72B/
This manual may not, in whole or in part, be copied, LE37R72B/LE40R71B/LE40R72B and Macmaster
photocopied, reproduced, translated, or converted to any Cable Adapter are trademarks of Samsung Electronics
electronic or machine readable form without prior Co., Ltd.
written permission of Samsung Electronics Co., Ltd.
Macintosh and Power Macintosh are trademarks of
LE26R71B/LE26R72B/LE32R71B/LE32R72B/
Apple Computer, Inc.
LE37R72B/LE40R71B/LE40R72B Service Manual
All other trademarks are the property of their respective
First edition March 2006.
owners.
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 LE26R71B / LE26R72B Specifications ............................................................................................................... 2-2
2-3 LE32R71B / LE32R72B Specifications ............................................................................................................... 2-3
2-4 LE37R72B Specifications................................................................................................................................. 2-4
2-5 LE40R71B / LE40R72B Specifications ............................................................................................................... 2-5
2-6 Spec Comparison .......................................................................................................................................... 2-6
2-7 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 ....................................................................................................................................... 3-6
3-5 Software Upgrade .......................................................................................................................................... 3-9
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 LE26R71B Exploded View .............................................................................................................................. 5-1
5-2 LE26R71B Parts list ....................................................................................................................................... 5-2
5-3 LE26R72B Exploded View .............................................................................................................................. 5-3
5-4 LE26R72B Parts list ....................................................................................................................................... 5-4
5-5 LE32R71B Exploded View .............................................................................................................................. 5-5
5-6 LE32R71B Parts list ....................................................................................................................................... 5-6
5-7 LE32R72B Exploded View .............................................................................................................................. 5-7
5-8 LE32R72B Parts list ....................................................................................................................................... 5-8
5-9 LE37R72B Exploded View .............................................................................................................................. 5-9
5-10 LE37R72B Parts list .................................................................................................................................... 5-10
5-11 LE40R71B Exploded View ........................................................................................................................... 5-11
5-12 LE40R71B Parts list .................................................................................................................................... 5-12
5-13 LE40R72B Exploded View ........................................................................................................................... 5-13
5-14 LE40R72B Parts list .................................................................................................................................... 5-14
6. Electrical Parts List .............................................................................................................................................6-1
6
6-1 LE26R71BX/BWT Parts List ........................................................................................................................... 6-1
6-2 LE26R72BX/XEC Parts List ........................................................................................................................... 6-20
6-3 LE32R71BX/XEC Parts List ........................................................................................................................... 6-34
6-4 LE32R72BX/XEC Parts List ........................................................................................................................... 6-49
Contents
6-5 LE37R72BX/XEC Parts List ........................................................................................................................... 6-63
6-6 LE40R71BX/XEH Parts List ........................................................................................................................... 6-77
6-7 LE40R72BX/BWT Parts List ........................................................................................................................... 6-92
7. Block Diagram ...................................................................................................................................................7-1
7
8. Wiring Diagram ...................................................................................................................................................8-1
8
8-1 LE26R71B/LE32R71B/LE40R71B/LE26R72B/LE32R72B/LE37R72B/LE40R72B 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
9-1 Power_Sound Schematic Diagram ..................................................................................................................... 9-1
9-2 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 Installation.....................................................................................................................10-1
1
10-1 Front ...................................................................................................................................................... 10-1
10-2 Connection Panel ....................................................................................................................................... 10-2
10-3 Remote control .......................................................................................................................................... 10-4
10-4 Installation the Stand ................................................................................................................................. 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
12-1 26" Main PCB Diagram .............................................................................................................................. 12-1
12-2 32", 40" Main PCB Diagram ...........................................................................................................................12-2
12-3 26" SMPS ................................................................................................................................................ 12-3
12-4 32" SMPS ................................................................................................................................................ 12-4
12-5 40" IP Board ............................................................................................................................................. 12-5
13. Circuit Descriptions .............................................................................................................................................13-1
1
13-1 Block description ....................................................................................................................................... 13-1
13-2 Main Block ................................................................................................................................................ 13-3
13-3 SMPS Board ............................................................................................................................................. 13-3
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