I hope somebody can help?
I have two RT boards, and old version, and the new version. Now i had them in storage and due to mouse damage the new version has a couple of corroded chips and won't play, just a fuzzy gfx screen. Plus it had the correct in game soundtrack that the old version didn't.
So I've swapped the RT1 - 16 roms over and the smaller 1-5 from the new to old board in the hope it'll work, and it does! BUT I have no 'kssh' gun firing or enemy 'argh' sounds when they're shot. All the other sounds seem to be there.
Does anyone know where the sounds are located on the pcb? I've swapped both sub boards to and fro and still get the same.
Bit stuck. Anyone have any ideas ??