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Blanking signal System 6 Williams MPU
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Question
DKong
Ok have been pulling the hair out a bit the last week with this board ( Firepower). Using Clay's site and numerous others I have the Williams System 6 MPU board booting (LED's flash once then go out). These sites are now pointing me to the dual timer chip 556 IC 23. Has anyone else found this to be the problem?
When I jump 5 volts to pin 37 on the inerconector board (MPU to Driver) I get displays but my solenoid fuse blows? Trying to find a dual timer chip in town this week but noone seems to have one in stock?
Where do you get the capacitors on Pinball boards (.47umf 50 volts I think)the long thin ones that look like Zenner diodes, gold on each end and clearish in the middle?
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