Car Battery Adapter Test (2523)

1.  Unplug the car adapter from the computer and the cigarette socket.
2.  Measure the cigarette socket voltage. It should be between 9.0 V  dc and 18.0 V dc.
3.  Plug the adapter into the car socket. Measure the output  voltage of the adapter.

Pin	Voltage (Vdc)
1	+19 to +21
2	Ground (sleeve)

•  If the voltage is incorrect, but not 0, replace the car battery  adapter.
•  If the voltage is 0, check that the adapter connector has good  contact with cigarette socket. If the  connection is good, replace the adapter.
•  If the voltage is correct, and the computer operates  with the AC Adapter, replace the car battery adapter.
•  If the voltage is correct, and the computer fails with AC adapter  also, perform the 'AC Adapter Test' procedure.