IBM 3270 Maintenance Manual page 132

The failure exists on the system board.
When the sixth and seventh characters of the
error code are 00, 01, 02, 04, 08, 10, 20, 40, or 80
the failure is one of the memory modules that
plug into 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
ERROR - XXXKB MEMORY 201 S
FAILING ADDRESS - SPACE/MODUli:: XXXXX XX
PRESS ENTER TO CONTINUE
7-
ARE THE SIXTH AND SEVENTH
CHARACTERS OF THE ERROR CODE 00, 01,
02, 04 08, 10, 20, 40, OR 80?
YES Go to page 3-200-10
NO
October 1984 3-200· 7