IBM 5150 - Page 36

1. Set your multimeter to the 12 Vdc scale and connect the
common lead to Pin 5 and the voltage lead to Pin 1 of the
System Board power connectors
(Refer to the diagram) .
2. Position the System Unit Power switch to On.
3. Check for a voltage reading
of 2.4 to 5.25 Vdc.
•
Power Supply
DO YOU HAVE
2.4 TO 5.25 Vdc BETWEEN PINS 1
AND5?
NO Go to page 020-9.
YES
020-5