Power Systems Checkout (TP-770 - 9548/49)

1.  Remove the battery pack.
2.  Connect the AC Adapter and check that power is supplied.
3.  Disconnect the AC Adapter and install the charged battery pack, then check that power  is supplied by the battery pack.

•  If the problem is due to the AC Adapter, go to 'Checking the AC Adapter'
•  If the problem is due to the battery pack, go to 'Checking the Battery Pack'

   If the problem is not due to the AC Adapter or battery pack, go to the  following sections.

•  'Checking the Backup Battery (Nonrechargeable)'.
•  'Checking the Standby Battery (Rechargeable)'.