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SYMPTOM: SWITCHES
Feature (Drop Targets. Stand-up, etc.) does not score.
ACTION:
A. With power ON, open front door. Select SELF TEST-Switch Test with the keyboard.
B.
If the game is correct, "All Switches Open" is displayed. Otherwise, the name of the switch(es) will be displa\
with jack and pin numbers.
C.
Carefully lift the playfield. Locate the switch assembly identified from the display. Visually inspect the
SWf
assembly. If the contacts are stuck, re-gap them to
1/16".
Repeat A & B. If the game is correct, it is now reE
to play. If the game is not correct, turn power OFF.
D.
Replace Control Board.
CAUTION: Replacement Control Board must have same Part Number or incorrect operation will result! See Pa
List for Control Board.
E. Repeat A & B. If game is correct, it is now ready to play. If game is not correct, contact the Bally-Midv
service department.
GAME:
MOTORDOME PINBALL & FUTURE GAMES
SUBJECT: 6803 CONTROL BOARD POWER UP TEST SEQUENCE
The following is an abbreviated self-test routine for the 6803 Control Board used in Motordome and future pinbs
1 st Flash - (U6) Determine if the internal RAM is good. (6803)
2nd Flash - (U2) Checks to see if the program ROM is good (27128)
3rd Flash - (U3) Checks to see if the program ROM is good (27128)
4th Flash - (U4) Checks the C-MOS RAM. (6116P-3)
5th Flash - (U8) Tests PIAO (6821)
6th Flash - (U7) Tests PIA1 (6821)
7th Flash - (U6) Checks the internal display interrupt generator (6803)
1
8th Flash - (U12 & U8) Verifies operation of the phase B switched ill. voltage. NOTE: F5 fuse on the
poi
Module provides the phase B signal to the Control Board. (U12, 14584) (U8, 6821)
,
1
9th Flash - (Ul, U11 & U12) Verifies operation ofthe Phase A switched ill. voltage. NOTE: F4 fuse on the
~
Module provides the phase A signal to the Control Board. (U1, 6803) (U11, 4011) (U12, 145
The following is an abbreviated self-test routine for the 6809 Sound Board used in Motordome and future pin
1 st Flash - (U7) Determine if the external ROM is good.
2nd Flash - (U6) Checks to see if the external RAM is good.
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3rd Flash - (U8) Checks the PIA. (68B21)
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1
~
..
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