Measure the output voltage at the connector on the voltage converter.
Pin |
Voltage (Vdc) |
1 |
+.4 |
3 |
Ground |
- If the voltage is less than +.4 V dc, replace the voltage
converter.
- If the voltage is greater than +.4 V dc, go to the next step.
Power-off the computer.
Reconnect the standby battery to the voltage converter.
Power-on the computer and leave it approximately 30 minutes to allow
the standby battery to be charged.
Power-off the computer again and disconnect the standby battery.
Measure the voltage of the standby battery.
- If the voltage is less than 3.5 V dc, replace the standby battery.
- If the voltage is greater than 3.5 V dc, replace the voltage converter.