IBM 3274 User Manual page 119

Procedure 19: Display-to-Host Communication Check with
a 3299 in the Network
001
Is an)<
~
symbol followed by a 3-digit code (nnn code)
displayed in the operator information area, indicating a
communication check?
Y N
I
002
Go to Procedure 14 on page 2-35.
003
Record the symptoms on the appropriate Problem Report Form
(see "Related Publications" on page iv of this guide for
publication order numbers), press the RESET key, and retry
the failing operation. (See the note at the end of this
procedure.)
Does the operation still fail?
Y N
I
004
Resume operation.
005
Perform problem determination that relates to 3-digit
communication check code (nnn code). See Procedure 8 on
page 2-21, and the note at the end of this procedure.
Is the host powered on and operating without error?
Y N
007
I
006
When the host system problem is resolved, resume
operation.
Go to procedure 20 on page 2-46.
2-44