I am rebuilding a championship sprint game and it has the Atari Audio AMP II (A043661 REV B) I believe this board was also used in 720 Degrees and Paperboy. I have looked all over the net for pinouts for this amp but cannot find them. I have found the pinouts for the pcb and video boards though. Does anyone have them ? I have been able to power up the video & pcb boards but cannot get any sound without the audio amp working. A picture can be found at
www.ggdb.com/GGDB/ DetailsZoom.asp?Cat=TechRoot&NID=3&TID=PCB&VID=30
Any help would be greatly appreciated !!!