4. Troubleshooting
4-2. When the Power Does Not Turn On
Symptom | - When turning on the Power button after connecting the power cable, the LED at the front of the | |||||||||||
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| - When turning on the Power button after connecting the power cable, the LED at the front of the | |||||||||||
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| monitor does not operate. | ||||||||||
Major checkpoints | - Check the IP board power fuse and the IP board output power. | |||||||||||
| - Check the connections for the IP board and the Main board inside the monitor. | |||||||||||
| - Check the Main board power part and also check whether there is any abnormal output at any of | |||||||||||
| the other output terminals. | |||||||||||
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| CN 600 | ||||||||||
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| IC 601 |
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| IC 602 | ||||
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| Yes |
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| Check the connection status for | ||
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| the function assy. |
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| Is DC 5V measured at pins 5, 6 of the | No |
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| CN600 connector when pins 3, 4 are | Replace the IP board. | |||
| 0V? |
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| Yes |
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| IIs DC 3.3V measured at pin 3 of IC601 | No | Check the circuits related to | ||
Diagnostics |
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| IC601. | ||
when pin 1 is DC 5V? |
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| Yes |
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| Is DC 1.8V measured at pin 2 of IC602 | No | Check the circuits related to | ||
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| IC602. | ||
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| when pin 3 is DC 5V? |
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| Yes |
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| Check and replace the IP board. |
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Caution
Make sure to disconnect the power before working on the IP board.