User Guide

Adjustments Voltage - 3
1 Set the voltmeter to 20
volts.
2 Connect the Macintosh
voltage test cable (Apple
part number 077-
0135) to the external
drive port.
3 Caution: Shorting the
test cable plugs to each
other can damage the
computer. Pull the
hoods over the plugs.
Connect the black
voltmeter test lead
between the voltmeter
ground terminal and the
computer chassis.
External Drive
Port