IBM 3270 Maintenance Manual page 286

You have gone through the PICs without solving
your problem. The following steps should help
you find additional audio or visual symptoms.
1.
Check the entire system for loose or damaged
connectors.
2. Run the "Printer Offline Diagnostic Test" on
page 3-1400-14 and review the points below.
• If you are using a keyboard other than
U.S. English, and your printout does not
match the desired character set, verify
that the switch settings are correct for the
desired character set. If the switch
settings are correct, have your printer
serviced .
• Your printer also is controlled by program
commands from the system unit. If you
are still having a printer problem, or if a
problem occurs only during a particular
program, examine the program thoroughly
for commands that might cause the printer
to produce undesired results.
3. Return to page 3-5-1 and review "Start."
4. Select "LOG UTILITIES" in the System
Checkout menu, start an error log, and select
"RUN TESTS MULTIPLE TIMES." This will
allow you to operate the system thoroughly
and identify the symptom. Then go to page
3-5-1, "Start," or the appropriate PIC for the
symptom you received.
If you have followed these procedures and still
have an unsolved problem, request technical
assistance.
October 1984 3-1400-19