IBM 3270 Maintenance Manual page 178

1. The 64/256KB Memory Expansion Option that
matches the switch settings for your error
code is failing. Use the first character of the
pari ty error code and the chart below to
determine the failing bank. For example,
error code 8COO would indicate that bank 2 is
failing.
2. Replace all nine modules in the bank
indicated by the first character of the error
code.
Fint Chlrlcter of
Err.r Co'" ................................... 4 or 8 5 .r 9
&
7
Blnk ............................................ Blnk 0 Blnk 1 Blnk 2 Blnk 3
Sixth Ind Seventh
Chlrlcten of Error Code ........... 00 01 02 04 08 10 20 40 80
Bit ................................................ P 0 1 2 3·4 5 & 7
Front
BankO
Top
B 8
81
B 8
8
0 0 B B B
sl
D
G
8
aiifsB-G-0S-8S-B:' D
B B
si-s-a-S-a-BrSS-S-!
0
: I
Bank 3
CONTINUE
Bank 1
October 1984 3-200-53