Basic HTML Version
I
I
I
VI. TROUBLESHOOTING ON LOCATION
SYMPTOM: WON'T POWER UP
Game does not play power-up tune when power is turned on. General illumination is present.
ACTION:
A. Check Fuses.
B. Turn power OFF. Open back box. Locate light emitting diode (LED) on Control Board.
C. Turn power ON. LED must flash 9X to indicate that the module is good. Correct sequence is flash-pause-flash
and then seven more flashes and LED goes out.
D. If LED does not come on or does not flash, or flashes, but less than 9X, turn off power. Check fuses. If fuses
are good, replace Control Board.
CAUTION: Replacement Control Board must have same Part Number or incorrect operation will result! See Parts
List for Control Board.
I
-
,
Turn power ON.
E. If game is correct, it is now ready for play. If game is not correct, contact the Bally-Midway service department.
SYMPTOM: LAMPS
One or some switched lamps always ON or not all feature lamps light during play.
II
II
ACTION:
A. With power ON, open front door. Select SELF TEST-Lamp Tests with keyboard. If game is correct all feature
lamps flash ON and OFF.
B. Carefully raise playfield or open back box to gain access to lamps.
C. Replace bulbs that do not flash.
D. If game is correct, it is now ready for play.
E. If game is not correct, turn power OFF. Replace Control Board. Turn power ON and repeat A.
F. If game is correct, it is now ready for play. If game is not correct, contact Bally-Midway service department.
SYMPTOM: DISPLAYS
I. Display digits improper on one or several, but less than all Display Driver Module(s). Improper: One or several
segments always OFF, digits mottled or several segments or digit(s) always ON.
ACTION:
A. With power ON, open front door. Select SELF TEST-Display Test with keyboard. If the game is correct, each
digit on each Display displays the count 0 through 9 and alphabet in all 7 digit positions. Note defective
Display Driver modules.
B. Turn power OFF.
WARNING: High Voltage is supplied to the Display Driver Modules, from the Power Module. Wait 30 seconds
for High Voltage to Bleed Off.
C. Replace Display Driver module(s). Turn power ON. Repeat A.
D. If game is correct, it
ts
now ready for play. If game is not correct contact Bally-Midway service department.
II
II
II. All displays improper. Improper: Digit(s) always on or off/segment(s) always on or off, all displays.
ACTION:
A. With power ON, open front door. Select SELF TEST-Display Test with keyboard. If the game is correct, each
digit on each Display displays the count 0 through 9 and alphabet in all 7 digit positions. Note defective
Display Driver modules.
8. Replace Control Board. Turn power ON. Repeat A.
CAUTION: Replacement Control Board must have same Part Number or incorrect operation will result! See Parts
List for Control Board.
C. If game is correct, it is now ready to play. If game is not correct, contact Bally-Midway service department.
II
II
III. One or several displays always off.
ACTION:
A. With power ON, open front door. Select SELF TEST-Display Test with keyboard. If the game is correct, each
digit on each Display displays the count 0 through 9 and alphabet in all 7 digit positions. Note defective
Display Driver modules.
B. Turn power OFF.
C. Replace Display Driver module(s). Turn power ON. Repeat A.
D. If game is correct, it is now ready for play, If game is not correct contact Bally-Midway service department.
1-7