Williams Sinistar - CMOS RAM Data Test Protocol

CMOS RAM Data
Test Protocol
The first sub-test of the CMOS
RAM data is that of the
ATTRACT MODE MESSAGE
checksum. If the test does not
pass, the factory ATTRACT
MODE MESSAGE is restored.
Next, the game adjustments are
checked and restored to factory
settings if an error is found. If
game adjustments are found
intact, the high score table is
checked for any bad entries. Bad
entries are replaced with a score
of 4,000 points and no initials. If
all entries check, the game
returns to the Game Over Mode.
If game adjustments are restored
to factory settings, the AUDIT
TOTALS are checked. If 5 or
more audit digits are other than
0-9 (that is hexadecimal A
through F) all audit totals are
cleared. This is followed by a
check of the high score table and
the table is reset to factory
settings if errors are found.
Finally, game adjustments are
rechecked and either OPEN
COIN DOOR or FACTORY
SETTINGS RESTORED is
displayed. With the former, open
the coin door and turn the game
OFF and ON and then FACTORY
SETTINGS RESTORED will be
displayed. Return to game over
by depressing the ADVANCE
pushbutton or by turning the
game OFF and ON a second
time.
POWER ON
ATTRACT MODE
MESSAGE?
RESTORE
FACTORY
MESSAGE
GAME
ADJUSTMENTS?
RESTORE
FACTORY
SETTINGS
AUDITS?
CLEAR
AUDITS
HIGH
SCORE
TABLE?
RESET HIGH
SCORE TABLE
TO FACOTRY
SETTINGS
GAME
ADJUSTMENTS?
"OPEN COIN DOOR"
DISPLAYED
OPEN COIN
DOOR
POWER OFF
AND ON
"FACTORY
SETTINGS
RESTORED"
DISPLAYED
POWER ON
AND OFF
HIGH
SCORE
ENTRIES?
BAD ENTRIES
REPLACED WITH
4,000 AND NO
INITIALS
"INITIAL TESTS
INDICATE ALL
SYSTEMS GO"
DISPLAYED
1
1 1
PASS
FAIL
PASS
FAIL
PASS
FAIL
PASS
FAIL
5 OR MORE HEX A-F
PASS
FAIL
PASS
FAIL