IBM System/370 Operator's Reference Manual page 204

Display Console Operation, Mod 158 (cont'd)
Error Message Response
If a console hardware error occurs, the following message may appear on the screen:
IEE170E RETRYABLE ERROR. RECENT ACTION MAY NEED TO BE
REPEATED. IEE170E PRESS THE CANCEL KEY TO RESTORE THE
SCREEN.
Perform the indicated action (press the CANCEL key). This should restore the screen,
including messages displayed in the message area, the PFK display line, the instruction
line, and the warning line.
Note: If you do not press the CANCEL key, the system will automatically rewrite the
screen (same effect as CANCEL) after about 30 seconds have elapsed. If a console
hardware error results from keyboard input, the system will always regard it as a
temporary error. If it becomes apparent to you that the error is permanent, switch
control to an alternate console (procedures for console switch are
describ~d
in the
Operator's Library Reference publication for the system you are using.)
Blank Screen Response
If the console screen goes blank, a console switch is probably taking place. The follow·
ing message should appear on the new console:
IEE1431 OLD=xxx, NEW=xxx, VALDCMD=xx
IEE1431 ROUTCDE=i<x[,xx] T=x H=x
In the actual message, the appropriate values will appear in place of the x's. Use the
alternate console to continue operating the system, and have the old console checked
for the source of the error.
NOTE: It is normal for the screen to go blank for a few seconds if the back·tab key
is pressed when the cursor is not in the entry area.
Locked Keyboard Response
Sometimes the system is unable to blank the screen. If you find that you cannot enter
commands through a console that appears normal, try to restore the screen by per·
forming a CANCEL action.
If a console switch has taken place, operate the system from the alternate console, and
have the old console examined for the source of the error.
NOTE: I nhibited input, with or without keyboard locking, may also occur when the
system goes into an ABEN D wait state or when a problem occurs in the message
handling portion of the control program. Check the procedures described for console
inactivity under "System Errors."
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