IBM 3270 Maintenance Manual page 164

The five character error code of the parity check
will help you determine whether a bank on the
system board or which adapter is failing if the
problem is on a memory expansion option.
The first character of the five character error
code identifies the failing bank. For example,
error code 2COOO would indicate that bank 2 is
failing.
Fint ChlrlCtlr of
En.rC ................................................. 0 1 2 3
alnk ...................................................... alnk 0 alnk 1 alnk 2 alnk 3
iGB80B80BB
-
GB0GB80BB
~
II:
. .
•
CD
US
!
N
BB8GGGGBB
~
II:
•
CD
iB88GG0GBB
Front
WAS THE FIRST CHARACTER OF THE
ERROR CODE 0, 1, 2 OR 3?
NO Go to page 3-200-42.
YES
October 1984
3~200-39