Need a little help.
I'm getting no power to my sound board to even get a speaker hum.
I know the sound board works, because I tested in another stern.
I need to know where the power is coming from and what I might check to get it flowing.

Bump

Ok. So, the game boots and plays.
Using an alltek MPU. I get all the flashes.
I'll check pin 11 on J3 for power.

the schematics say pin 11 J3 on the SDB is where the 11.9 volts come from (TP-5)
But, the schematic says that wire goes to the MPU, then I don't see where it comes out of the MPU the the sound board.

Got it! It was the doubled up pin on the sound board.
It's harder to get those crimped good.