Indication |
Test/Procedure |
Reference |
---|---|---|
No AC Fans are not turning No LEDs |
Check incoming AC power.
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|
Check keyswitch setting. | ||
Check AC distribution unit switch
|
See Figure 11-2. |
|
No DC or yellow LED is lighted
|
Check system front panel LEDs or clock+ board LEDs.
|
See Table 9-1. |
|
Check PCMs.
| |
|
Check peripheral power supply.
|
|
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Check CPU/Memory+ boards.
|
|
|
If clock+ board is faulty, system operation/diagnostics may be erratic.
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System error messages
|
Check LEDs on: --Front panel --Clock+ board --Peripheral power supply --PCMs --CPU/Memory+ boards --I/O+ boards |
See Chapter 9, Troubleshooting Overview.
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