I just replaced my Poly800 ROM with a 27256 containing an EX800 ROM (set A14 and A13 to ground). Notes and Sysex works, but program change messages (0x0c) do not get recognized. Param 87 can be set from 0 to 64. Any idea what is wrong? New format for program change messages?
Message
EX-ROM and Program Change Messages
2004-08-11 by paranoyaxc