I ordered a new power supply and MPU for High Speed. I can't get the sounds/music to work. If I replace the MPU with my Road Kings all sounds/music work. This seems to narrow the problem down to the RD MPU.
I sent the board back in for repair and seller found a bad CPU, tested on his system 11 machine, and returned to me. I plugged it back in and get the same problem. I have been in contact with customer support, which have been good, but hitting a dead end on what could be wrong.
I have replaced the ROMs and CPUs on the RD board with my Road Kings and still no luck. Any other suggestions or items to check?