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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 pinballs:
1st Flash-(U1) 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 PIAl. (6821)
7th Flash-(Ul) Checks the internal display interrupt generator. (6803)
8th Flash-(U12 & U8) Verifies operation of the phase B switched ill. voltage. NOTE: F5 fuse on the Power
Module provides the phase B signal to the Control Board. (U12, 14584) (U8, 6821)
9th Flash-(U1, U11 & U12) Verifies operation of the Phase A switched ill. voltage. NOTE: F4 fuse on the Power
Module provides the phase A signal to the Control Board. (U1, 6803) (U11, 4011) (U12, 14584)
The following is an abbreviated self-test routine for the 6809 Sound Board:
1st Flash-(U7) Determines if the ROM is good.
2nd Flash-(U6) Checks to see if the RAM is good.
3rd Flash-(U8) Checks the PIA. (68B21)
The following is an abbreviated self-test routine for the Sounds Deluxe Board:
1st Flash-Determines if the ROM (U11) is good.
2nd Flash-Determines if the ROM (U12) is good.
3rd Flash-Determines if the ROM (U13) is good.
4th Flash-Determines if the ROM (U14) is good.
5th Flash-Checks to see if the RAM (U9, Ul0) is good.
6th Flash-Checks the PIA (6821) (U7) .
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