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. If you push and hold the EXIT button for more than 5 seconds, the monitor automatically turns back to the factory preset.
5-1-1 No Power
When Pin 6 of CN105 is 0V does proper DC 12V, 5V appear at Pin 1, 2 and 7 of CN105 seperately? Yes Does proper DC 5 V appear at Pin 3 of IC115? Yes Does proper DC 3.3 V appear at Pin 3 of IC112? Yes Does proper DC 2.5 V appear at Pin 2 of IC116 and IC117? No Check IC116, IC117 and related circuit. No No
�
