IBM Personal Computer

Checking Electrical Connections
1 Set the Power switch on the system unit (and
expansion unit, if attached)
to Off.
2 Set the Power switches on all attached devices to
Off.
3 Disconnect all devices.
4 Unplug the system unit's (and expansion unit's)
power cord from the wall outlet.
Personal Computer
and
Expansion Unit
April 1984
Start 20-1