Here’s two pictures how to modify stock rev2 to use 2716 eproms on full capacity. You’ll need to remove the voice board (board 4) to get access to CPU board. Refer to Rev2 technical manual for further dissassembly instructions. (Rev2 tech manual is downloadable on synfo.nl) First you’ll need to install two wires from Eprom 0 … Continue reading How to do the A13 / 2716 mod