IBM 3270 Manual page 180

5. Did the chart indicate a 3274 Control Unit
or host computer problem?
No Yes
I
1. Follow your procedures for
reporting control unit or host
problems.
You have a 3270 PC Control Program
problem.
1.
Do not turn off your system unit.
2. Make a note of the problem, for
example:
Messages received
Return code received
Unexpected result.
3. Make anote of what you were trying
to do when the problem occurred, for
example:
Which PC application was running
Which keys you pressed.
4. Follow your procedures for reporting
software problems to your supervisor
or the person responsible for solving
software problems. (If you are
responsible for solving
software problems, you can refer to
3270 PC Control Program Reference
for more detailed instructions.)
Locating Problems With Your CP 13-5