IBM 3274 User Manual page 109

Procedure 13: Check for Host System and Loop Problems
Call the host system operator to determine whether the host
system is operating correctly.
001
Is the host system operating correctly?
Y N
003
I
002
Wait for the host system problem to be corrected; then
resume operation.
Is this 3274 attached to a loop?
Y N
I
004
Go to Procedure 11 on page 2-28.
005
Is the Ext Chk indicator on the 3274 Operator Panel lit?
Y N
I
006
Go to Procedure 11 on page 2-28.
007
Perform problem determination on the loop, using the
host/8100 maintenance procedures to isolate the problem. If
this has already been done, go to Procedure 11 on page 2-28.
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