Measure the output voltage at the connector on the keyboard card with
the battery unplugged.
Pin |
Voltage (Vdc) |
+ |
+4.0 |
- |
Ground |
- If the voltage is less than +4.0 Vdc,
replace the DC/DC card. If the voltage is still low, replace the system
board.
- If the voltage is more than +4.0 Vdc, power-off the computer,
replace the standby battery, and go to the next step.
Ensure that the AC Adapter is plugged into
the computer, then power-on the computer.
Charging of the standby battery starts immediately.
A depleted battery needs approximately 30
minutes to be recharged to the operational voltage of +3.5 Vdc.
Unplug the AC Adapter.
Verify the standby battery function by removing and installing
the battery pack during suspend mode.
NOTE:
Removing and installing the battery pack during suspend mode
should be done within one minute.
If the System does not resume after a charged battery pack is installed,
replace the DC/DC card.
If replacing the DC/DC card does not resolve the problem, replace
the system board.