CHECKOUT GUIDE
Checking the AC Adapter:
You are here
because the computer fails only when the AC Adapter is
used:
If the power problem occurs only when the port
replicator is used, replace the port replicator.
If the power-on indicator does not turn on, check the
power cord of the AC Adapter for correct continuity
and installation.
If the computer does not charge during operation, go
to “Checking operational charging.”
1. Unplug the AC Adapter cable from the computer and
measure the output voltage at the plug of the AC
Adapter cable. See the following figure:
(16 - 10 V)
If the voltage is not correct, replace the AC Adapter.
If the voltage is acceptable, do the following:
Replace the system board.
If the problem persists, go to “Product overview”
on page 14.
Note: Noise from the AC Adapter does not always
indicate a defect.
Checking operational charging:
To check
operational charging, use a discharged battery pack or a
battery pack that has less than 50% of the total power
remaining when installed in the computer.
Perform operational charging. If the battery status
indicator or icon does not turn on, remove the battery pack
and let it return to room temperature. Reinstall the battery
pack. If the charge indicator or icon still does not turn on,
replace the battery pack.
If the charge indicator still does not turn on, replace the
system board. Then reinstall the battery pack. If the
reinstalled battery pack is not charged, go to the next
section.
Pin
Voltage (V dc)
1
+
15.5 to
+
17.0
2
Ground
11
