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IBM-AUSTRIA - PC-HW-Support 30 Aug 1999 |
Checking the AC Adapter (2600-310/310D/310E/310ED)
Checking the AC Adapter
You are here because the computer fails only when the AC Adapter
is used.
If the power-on indicator does not turn on, make sure of the following:
- Power cord is not damaged.
- Power cord is securely connected to the AC Adapter and AC power outlet.
If the above check does not solve the problem, replace the AC Adapter.
If the power-on indicator of the AC Adapter is on, then proceed to the next step.
- Unplug the AC Adapter cable from the computer and
measure the output voltage at the plug of the AC Adapter cable.
| Pin |
Voltage (Vdc) |
| 1 |
+19.0 to +20.5 |
| 2 |
Ground |
- Replace the system board.
- If the problem is still not corrected, go to 'Undetermined Problems'
- If the voltage is not correct, go to the next step.
- Unplug the AC Adapter cable from the ac power outlet and wait
five minutes or longer to allow the over-voltage protection circuit
to be fully discharged and initialized.
- Plug the AC Adapter cable into the ac power outlet.
- Measure the output voltage of the AC Adapter.
- If the voltage is still not correct, replace the AC Adapter.
NOTE: An audible noise from the
AC Adapter does not always indicate a defective adapter.
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