SyncMaster 770TFT
5-1
5 Troubleshooting
Notes:
1. Before troubleshooting, setup the PC’s display as below.
• Resolution: 1280 x 1024
• H-frequency: 64 kHz
• V-frequency: 60 Hz
2. If no picture appears, make sure the power cord is correctly connected.
3. Check the following circuits.
• No raster appears: Stand PCB, Main PCB
• 14V develop but no screen: Main PCB
• 14V does not develop: Main PCB
4. If you push and hold the EXIT button for more than 5 seconds, the monitor automatically turns back
to the factory preset.
5-1 No Power
Does proper DC 14 V appear at
DC jack connected to CN101?
Check Power Adaptor.
Yes
No
Does proper DC 5 V appear at
Pin 4 of IC101?
Check IC101 and related circuit.
Check Q103, Q105 and Q106.
Yes
No
Does proper 5 V - signal appear at
Pin 42 of IC501 (SW_REG_EN)?
Check IC501 and related circuit.
(CN102, Function Key)
Yes
No
Содержание SyncMaster 770TFT
Страница 2: ...Samsung Electronics Co Ltd September 1999 Printed in Korea Code No BN68 00097A ...
Страница 8: ...2 Product Specifications 2 4 SyncMaster 770TFT Memo ...
Страница 10: ...3 Disassembly and Reassembly 3 2 SyncMaster 770TFT Memo ...
Страница 14: ...Memo 4 Alignments and Adjustments 4 4 SyncMaster 770TFT ...
Страница 19: ...SyncMaster 770TFT 6 1 6 Exploded View and Parts List ...
Страница 20: ...6 Exploded View Parts List 6 2 SyncMaster 770TFT Memo ...
Страница 36: ...8 Block Diagrams 8 2 SyncMaster 770TFT Memo ...
Страница 38: ...9 Wiring Diagram 9 2 SyncMaster 770TFT Memo ...
Страница 39: ...10 1 SyncMaster 770TFT 10 Schematic Diagrams 10 1 Signal Input Part Schematic Diagram ...
Страница 42: ...10 Schematic Diagrams SyncMaster 770TFT 10 4 10 4 Micom Part Schematic Diagram ...