4-6 EXTENSA 700/710 Service Guide
:
If the voltage is not correct, replace the AC Adapter.
If the voltage is within the range, do the following:
•
Replace the Main board.
•
If the problem is not corrected, go to “Undetermined Problems”.
•
If the voltage is not correct, go to the next step.
Note: An audible 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 does not turn on,
remove the battery pack and let it return to room temperature. Reinstall the
battery pack.
If the charge indicator still does not turn on, replace the battery pack. If the
charge indicator still does not turn on, replace the Main board. Then reinstall
the battery pack. If the reinstalled battery pack is not charged, go to the next
section.
Checking the Battery Pack:
Battery charging will not start until the Fuel-Gauge shows that less than 95%
of the total power remains; with this condition the battery pack can charge to
100% of its capacity. This protects the battery pack from being overcharged
or having a shortened life.
Do the following:
Pin Voltage (Vdc)
1 +19 to +20.5
2Ground
700SG-4.fm Page 6 Thursday, May 28, 1998 1:13 PM