IBM 3270 Maintenance Manual page 356

Check the continuity of the top card connector
as shown below.
•• ••
•• ••
••
•• ••
•• ••
I-
I:
•• ••
'·0
End View
Bottom View
IS THE CONTINUITY CORRECT?
NO Replace the top card connector. See
Section 5, "Removal/Replacement and
Adjustments."
YES
Replace the appropriate adapter (all points
addressable or programmed symbols). See
Section 5, "Removal/Replacement and
Adjustments. "
October 1984 3-3200-7