IBM 3270 Maintenance Manual page 131

The failure in the memory will cause a seven
character error code similar to the one shown
below.
If the first character of the seven character code
is 0,
1,
2, or 3, the failure is on the system board.
ENTER THE NUMBER(S) OF OPTIONS TO TEST
OR PRESS ENTER TO SELECT ALL OPTIONS
72
TESTING - XXXKB MEMORY
THIS TEST TAKES UP TO TWO MINUTES
PLEASE STAND BY
XX:XX:XX
J
ERROR - XXXKB MEMORY 201 S
t
FAILING ADDRf.:SS - SPACE/IVIODULE XXXXX XX
PRESS EI\JTER TO CONTINUE
W AS THE 1ST CHARACTER OF ITHE SEVEN
CHARACTER CODE 0, 1, 2 or 31
NO Go to page 3-200-16
YES
3-200-6 Maintenance Information