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When this test is entered, if the AUTO/ MANUAL switch
is in the AUTO position the test will sequentially display
the game status data values on the Player 1 display and
the function number on the credits display and continue
cycling until the ADV ANCE pushbutton is pressed. If the
ADV ANCE pushbutton is pressed once, the diagnostics
will end and the game will go to the GAME OVER mode.
If the ADVANCE pushbutton is pressed once and then
after a 1 second pause pressed a second time, the diag-
nostics will start all over again with the CPU Self Tests
and then go to Game Status Change section of the
diagnostics.
If the AUTO/MANUAL switch is in the MANUAL
position when the test is entered, the credit display will
show 01, Player 1 display the value of whatever is func-
tion 01, and will remain that way until the ADVANCE
pushbutton is pressed, at which time the value for fun-
ction 02 will be display on Player 1 display and 02 will
display in the credit display. Each time the ADVANCE
pushbutton is pressed, the credit display will increment
by 1 until 23 is reached then it will return to 01. This will
continue until the AUTO/MANUAL switch is returned
to the AUTO position and the ADVANCE pushbutton
pressed once or twice as described above. Note that for
test 4 function numbers 8 thru 14, values above 09 will
not be displayed correctly. Refer to Table lA and IB for
an explanation of the values read out during this test.
AUTO CYCLE MODE
As an aid in diagnosing intermittent
problems or as a
means to let the machine cycle itself through portions of
the diagnostics,
provision was made for the AUTO
CYCLE MODE. This mode will sequence through the
digit display test, go to test 01 and flash the lamps 128
times then go to test 02 and energize each solenoid then
digit test, test 01, etc. This can be allowed to run indef-
initely or until the ADVANCE pushbutton is pressed to
regain control of the diagnostics.
To enter the AUTO CYCLE MODE:
1. Turn game OFF then turn game ON.
2. Press the diagnostic pushbutton on the CPU Board to
enter diagnostics.
3. Set the data and function switches as follows:
OAT A SWITCH (TOP SWITCH) - Turn
all
switches
OFF. FUNCTION SWITCH (BOTTOM SWITCH)
Turn
all
switches OFF then turn ON only switch 1.
4. Press ENTER pushbutton on CPU Board. The two
LED's will blink to accept the data.
5. Place the AUTO/MANUAL switch to AUTO.
6. Press ADVANCE pushbutton ONCE.
The AUTO
CYCLE MODE will begin and continue until the
ADV ANCE pushbutton is pushed again to regain
manual control of the diagnostics or the machine is
turned OFF.