I have a punch out board with the roms you in the picture. They are the character roms 6n 6p 8n 8p they are supposed to be 2564s. Anyone know what they are?
Ok here is my issue. I have a PO board that is missing those prom/eproms . the manual calls out 2564s for those locations. I made a set of 2564s, but they dont work, the proms from my other board work fine in it.
Ok here is my issue. I have a PO board that is missing those prom/eproms . the manual calls out 2564s for those locations. I made a set of 2564s, but they dont work, the proms from my other board work fine in it.