robotype
Member
I have this elvira which is completely silent, now I am trying to fix the sound board.
http://img41.imageshack.us/img41/5921/cimg0184z.jpg
It only makes a low buzz and no sound at all, not even sound check at startup. swapping with a known good board I noticed all the socketed are good except rom 1 and 3 which where bad! so I replaced the roms but still nothing. so I replaced also the big one @ U12 (68B21P) but didn't help. any idea on what to try next? I think amplifiers are good because I can hear a buzz. oh yes, this game probably had a short with a 50v because all the inputs where fried on the main board (already fixed).
http://img41.imageshack.us/img41/5921/cimg0184z.jpg
It only makes a low buzz and no sound at all, not even sound check at startup. swapping with a known good board I noticed all the socketed are good except rom 1 and 3 which where bad! so I replaced the roms but still nothing. so I replaced also the big one @ U12 (68B21P) but didn't help. any idea on what to try next? I think amplifiers are good because I can hear a buzz. oh yes, this game probably had a short with a 50v because all the inputs where fried on the main board (already fixed).