Burlington, VT
Hello Pin Folks,
I'm debugging some sound weirdness on a BK I'm restoring. The symptoms seem to be that after playing the game actively for a good while the sound just cuts out entirely. If I power off the machine for say 10 seconds and power on again -- the sound returns, but only for a short time. For a lay person that seems to indicate it's a function of time and maybe has to do with heat?
So I'm starting by checking the input voltages when I first fire up the game. They seem slightly high as compared to the diagram -- around 22 VAC across the two outside wires (versus the 18.7 in the diagram) and half that between the middle and either of the outside wires. Is this normal/acceptable? I figured if those voltages were too high to begin with the sound would have issues from the onset.
My next step is to get the sound to fail again and test the voltages to see if they've changed at all. Any ideas or pointers are much appreciated!
P.S. -- I have a brand new after-market sound board so I don't suspect anything with the sound board itself.
