Computer Laptop User Manual

Troubleshooting AC Adapter Voltage Test - 3
AC Adapter Voltage Test
To test the AC adapter voltage,
• Use narrow test probes for the leads on your voltmeter
• Make all measurements with the negative or common lead
touching the outer shield of the connector (ground)
• Use the following table to identify the connector pin number,
signal name, and DC voltage present
Connector Pin Signal DC Voltage
1 VBATT 16.4–16.6V
2 VMAIN 16.4–16.6V
3 GND 0V
4 GND Sense 0V