Well, I have tested voltages, it is fine. Reseated connectors a lot because I had been switching it in and out with another one for awhile that the background music was working on and also died. The only socket is the one I added for the oscillator crystal that I replaced. I could check the background sound ROM socket though. If I had a clue on using the oscilloscope I recently got for free I could do some logic probing. If I can get the U1 chip I could try replacing it too.
