IBM 5150 - Running the Mini-test

1. Position the System Unit Power switch to Off.
2. If you have two Diskette Drives, remove the power
connector from Diskette Drive
"B." Leave Diskette
Drive
"A" disconnected.
3. Position the System Unit Power switch to On.
Rear View
DID THE FAILING SYMPTOM REMAIN?
NO Replace: 1. Diskette Logic Printed Circuit Board.
2. Diskette Drive assembly.
See Section 3,
"Removal/Replacement.'~
YES
020-4