ŸIf the measured voltage is correct, replac system board.
ŸIf the problems still persist, go to “Undet Problems” on page 131.
Ÿ If the voltage is not correct, go to the
2.Unplug the AC Adapter cable from the AC power outlet and wait for five minutes or longer to a
3. Plug the AC Adapter cable into the AC power out
4. Measure the output voltage of the AC Adapter.
5.If the voltage is still not correct, replace t Adapter.
Note: An audible noise from the AC Adapter does not always indicate a defective adapter.
Checking | the | Operational | Charging: |
| To | |
check operational charging, | use | a discharged batter | ||||
or a | battery | pack | that has | less than 50% of the | ||
remaining | when | installed in | the | computer. | ||
Perform operational charging:
1.If the battery indicator does not turn on, r battery pack and leave it to return to room te ature.
2.Reinstall the battery pack. If the charge ind does not turn on, replace the battery pack.
Checking the | Battery | Pack: | To check the |
battery | pack, do | the | following: |
1.Power off the computer.
2.Remove the battery pack and measure the voltag between battery terminals 2(+) and
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Terminal |
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| Signal / |
| Voltage | (V | dc) | ||||||
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1 |
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2 |
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| Power | ( > | 8 V | dc) | |||||||
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