IBM 3270 Hardware User's Manual page 135

7. Wait approximately 1 to 2 minutes and listen
for a long pause and one beep followed by a
shorter pause and another beep.
Did you get the two beeps as described
above?
Yes No
I
Remove the diskette and make sure that:
a. It is the Diagnostics diskette.
b. You inserted it correctly.
Was there a problem with either a or b?
Yes No
I
The system unit has a
problem. Report the
problem or have the
unit serviced to fix
the problem . •
Correct the problem and start over with
step 1 on page 5-18.
5-20 Book 1 - 3270 PC Work Station User's Guide