Finally a working repair sub-board kit for the 3 x 40 pin IC MPU board!
This sub-board will replace the original CPU and IO ICs on the following Series 1 Bally Home Pinball games:
614-1000 Evel Knievel
Packed in anti-static bag.
No warranty against failure - you must verify all voltages prior to installing! This can be done with the CPU sub-board not installed - no coils should fire! If any coils energize then there is a problem with that coils' control logic.
All you have to do is remove the three 40-pin ICs and the CPU and PSU-1 IC sockets (carefully!). The pre-assembled board with extensions now fits into the CPU and PSU-1 mounting points from the REAR of the logic board. This is because there is not enough depth on the front of the board to allow this new sub-board to fit without hitting the backside of the backglass.
One trace also needs to be cut and a short jumper wire installed. No other modifications are needed!