Hi all. I have a UMK3 PCB that was having graphical glitches and a bad U113 was replaced and all was happy for a few weeks. Now I'm getting an almost constant loud static garbage noise through the speakers. All roms test OK. I've tried pressing on the sound roms and u57(i think), the small sound chip and no change. I've also checked the solder side for any touching pins and not seeing anything.
Any ideas?
Thanks,
Robert
Any ideas?
Thanks,
Robert

