So I have tried new SDB and an Altek and same problem as my original boards. I have no 7th Flash. I have 43 volts at rectifier (also new) and solenoid driver board, but not at MPU. It’s like 67 volts or so their. I had repinned all connectors going to the MPU and I’m guessing I screwed something up. Any help would be greatly appreciated.
Post very clear pictures showing the wire colors of the re-terminated connectors at J3 of the rectifier board and J4 connector at the MPU board.
Quoted from Thrillhouse:Is your sound board connected properly? Most classic Sterns won't boot without it hooked up.
I believe so. It makes a boot up sound and the beeps that go with the flashes as well.
Quoted from Quench:Post very clear pictures showing the wire colors of the re-terminated connectors at J3 of the rectifier board and J4 connector at the MPU board.
I’ll have to get those pictures tomorrow I removed the game from location and it’s still in back of my car.
Thank you both for the help.
The 43 volts for the zero crossing comes in on the MPU at J4 Pin 15. That wire comes from rectifier board J3 pin 12. What voltage do you have there?
Quoted from Thrillhouse:Is your sound board connected properly? Most classic Sterns won't boot without it hooked up.
That's news to me. There's nothing in the bootup code requiring acknowledgement from the sound boards.
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Salt Lake City, UT