GY17HS*/GY17HSS*/GY17HSG*
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: SMPS PCB, Main PCB
• 12V develop but no screen: Main PCB
• 12V does not develop: SMPS PCB
4. If you push and hold the “EXIT” button for more than 5 seconds, the monitor automatically returns
to the factory preset.
5-1 No Power
❇
0V means power on state.
When Pin 5 of CN101 is 0V
does proper DC 13V, DC 5V
appear at Pin 1, 2 and Pin 6, 7 of
CN101 separately?
Change IP board.
Yes
No
When Pin 3 of IC102 is
DC 5V does proper DC 3.3V
appear at Pin 4 of IC102?
Check IC102 and related circuit.
Yes
No
When Pin 5 of IC101 is
DC 3.3V does proper DC 5V
appear at Pin 2, 3 of IC101?
Check IC101 and related circuit.
No
Yes
When Pin 3 of IC103 is
DC 5V does proper DC 2.5V
appear at Pin 4 of IC103?
Check IC103 and related circuit.
No
❇
Summary of Contents for GY17HS Series
Page 18: ...5 Troubleshooting GY17HS GY17HSS GY17HSG 5 3 1 WAVEFORMS 2 3 4 5 6 ...
Page 20: ...6 2 GY17HSS 6 Exploded View Parts List 6 2 GY17HS GY17HSS GY17HSG ...
Page 21: ...6 3 GY17HSG 6 Exploded View Parts List GY17HS GY17HSS GY17HSG 6 3 ...
Page 41: ...8 Block Diagrams 8 2 GY17HS GY17HSS GY17HSG 8 2 GY17HSS GY17HSG ...