Sega NAOMI Service Manual page 19

"GOOD"
is displayed
for
satisfactory RAMs,
and
"BAD"
is
indicated for irregular RAMs,
if
any.
RAM
TEST
1¢29
GOOD
1¢35
GOOD
1¢16
GOOD
1C18
GOOD
1¢20
GOOD
1C22
GOOD
1c09
GOOD
1C10
GOOD
1¢11
GOOD
1012
GOOD
PRESS
TEST
BUTTON TO
EXIT
During
test,
"TESTING NOW"
is displayed.
Press
the
TEST button
to return to the
menu
mode.