5 Troubleshooting
Notes: 1. Before troubleshooting, setup the PC’s display as below.
•Resolution: 1280 x 1024
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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 | No |
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does proper DC 12V, 5V |
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appear at Pin 1, 2 and 7 of |
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CN105 seperately? |
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| Yes |
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| No |
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Does proper DC 5 V appear at |
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Pin 3 of IC115? |
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| Yes |
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Does proper DC 3.3 V appear at | No |
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Pin 3 of IC112? |
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| Yes |
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Does proper DC 2.5 V appear at | No |
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Pin 2 of IC116 and IC117? |
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Change power Adaptor.
Check IC115 and related circuit.
Check IC112 and related circuit.
Check IC116, IC117 and related circuit.
❇0V means power on state.
GH17LS/GH17ES |
