4 Troubleshooting
4 Troubleshooting
4-1 No Power
There is no light in the power indicator.
Does proper DC 14 V
1appear at Pin 5,6,7
of CN101?
Yes
Does proper DC 5V
2appear at Output of
IC203?
Yes
No
No
Check the IP Board.
Check the IC 203
| Does proper DC 3.3V | No |
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| appear at |
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3 |
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| Pin 4 of the IC403? |
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| Yes |
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| Does proper DC 2.5V | No |
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| appear at |
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4 |
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| Pin 3 of the IC301? |
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| Yes |
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| Does proper DC 1.8V | No | |||
5 | appear at | ||||
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Pin 2 of the IC304?
Yes
Check the IC 403.
Check the IC 301.
Check the IC 304.
Check IC201 and IC302.