Hi!
Working on my HH and want to add speech ( not multiball), have purchased SC-01 adapter board and a 669-4b 24 pin speech prom ( from Dave Astill). Do I just need to install the speech prom into the prom 1 slot on the sound board and the SC-01 adapter into the vacant SC-01 slot and I'm good to go? Or are there other mods I need to do?
Any help appreciated
Jim