Samsung SyncMaster 743N User manual
LCD-Monitor
Chassis : LS17MYA / LS17MYB
LS19MYA / LS19MYB
Model :
743N / 743B
743NX
943N / 943B
SERVICEManual
TFT-LCD Monitor Contens
Refer to the service manual in the GSPN (see the rear cover) for the more information.
743N / 743B / 943N / 943B
1. Precautions
2. Product specications
3. Disassembly and Reassemble
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
7. Schematic Diagram
Contents
1. Precautions.............................................................................................................. 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 specications............................................................................................ 2-1
2-1. Feature & Specications................................................................................................. 2-1
2-2. Spec Comparison to the Old Models.............................................................................. 2-3
2-3. Accessories .................................................................................................................... 2-4
2-4. Accessories (Sold separately) ........................................................................................ 2-4
3. Disassembly and Assembly ................................................................................... 3-1
3-1. SIMPLE STAND Disassembly ........................................................................................ 3-1
3-2. HAS STAND Disassembly ...................................................................... 3-4
4. Troubleshooting ...................................................................................................... 4-1
4-1. Troubleshooting .............................................................................................................. 4-1
4-2. When the Power Does Not Turn On ............................................................................... 4-2
4-3. When the screen is blank (Analog)................................................................................. 4-4
4-4. When a blank screen is displayed (Digital)-743B / 943B only ....................................... 4-7
4-5. Faults and Corrective Actions....................................................................................... 4-10
4-6. Adjustment.................................................................................................................... 4-11
5. Exploded View & Part List ...................................................................................... 5-1
5-1.
SIMPLE STAND
Exploded View ...................................................................................... 5-1
5-2.
SIMPLE STAND
Parts List............................................................................................... 5-3
5-3.
HAS STAND
Exploded View............................................................................................ 5-8
5-4. HAS STAND
Parts List ................................................................................................. 5-10
6. Wiring Diagram........................................................................................................ 6-1
6-1. Wiring Diagram - Main Board ......................................................................................... 6-1
6-2. Wiring Diagram - IP Board.............................................................................................. 6-2
6-3. Connector Functions ...................................................................................................... 6-3
6-4. Cables ............................................................................................................................ 6-3
7. Schematic Diagram ................................................................................................. 7-1
7-1. 743N/943N -Circuit Descriptions .................................................................................... 7-1
7-2. 743N/943N Schematic Diagrams (Scaler Part) .............................................................. 7-3
7-3. Schematic Diagrams (Power Flowchart) ........................................................................ 7-4
7-4. Schematic Diagrams (IP Board) ..................................................................................... 7-5
7-5. Schematic Diagrams (Main PBA) .................................................................................. 7-3
GSPN (Global Service Partner Network)
Area Web Site
North America http://service.samsungportal.com
Latin America http://latin.samsungportal.com
CIS http://cis.samsungportal.com
Europe http://europe.samsungportal.com
China http://china.samsungportal.com
Asia http://asia.samsungportal.com
Mideast & Africa http://mea.samsungportal.com
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.
© 2007 Samsung Electronics Co.,Ltd.
All rights reserved.
Printed in Korea
P/N: BN82-00294A-00
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