There is a lot of missing technical details here.
Quoted from SantaEatsCheese:Finally we discovered no power was coming off of J114 on the P.C.B. to the audio board.
More information is needed on how you tested this as J114 on the PDB powers every WPC board. But if I had to guess this is a wiring or header issue.
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Quoted from SantaEatsCheese:I took the P.C.B. out of the Twilight Zone home and put it in my ST:TNG. It worked flawlessly, to include power coming off of the J114 connector. If I unplug the J114 connector in my ST:TNG the sound stops.
Unless you have an alternate +5V power source to your CPU a lot more than the sound should have stopped as removing this connector should hold all boards in a reset (blanking) condition.
Quoted from SantaEatsCheese:My questions are, is there anything I am missing?
Yes, you obviously have power at J114 or nothing would work as J114 powers the following boards:
+5 and +12 to CPU board
+5 and +12 to Fliptronics II Board
+5 to Sound Board
+5 and +12 to Display controller
I would start by removing J3 from the sound board and measuring the power on the connector, if its missing start following it back.
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Canfield, OH
