So when I purchased my tron it had no sound. He told me he had narrowed it down to one part on the power supply. Instead of fixing power supply I bought a new one from arcadeshop. Installed it and still have no sound. Before new power supply and after I installed I have been getting " sound board interface error " message. Also the three buttons inside coin door...volume...service test switch and credit test button don't work... so I can't run any diagnostics. All wires are connected. Before I rip into it what could the problem be? Is this error a problem with pcb? I have done a little research but fully don't understand what everything means as once again I am a self proclaimed electronic idiot...but I am trying to learn. Thanks



