Museum of the Game® & International Arcade Museum® Forums

Hello All. I'm kinda new here and i have a problem.

I have an upright Donkey Kong Junior cabinet that had been converted to Eight Ball Action. My goal is to save poor junior from this horrible pool table game. Info i have from byaoc and other places is that the conversion was a rom chip swap on the dkjr board. I have got dkjr rom chips from mikes arcade and carefully installed them. Now when i power on the machine i get a screen full of garbage characters, mostly letters and numbers and occasionally poor juniors head is there mixed in. If i had messed up the rom chips during the install i would still get something that looks similar to the game right? the screen i get is just a bunch of garbage and nothing responds to any kind of input.

part of the conversion was to install a sub-board in the z80 cpu socket. this was very difficult to remove. the sub-board used very large pins, that did not want to come out of the cpu socket. I think i may have damaged either the cpu itself or the solder points of the socket. I have removed the z80 and powered up to see the same garbage as before. Anyone know if my diagnosis is correct? i havent actually removed the board from the metal mounting plate to get a real close look at the solder joints. i am really hoping that i don't have to reflow the solder or replace the cpu socket.

Any ideas?
Anybody want a set of Eight Ball Action roms, sub-board and cp graphics?

Thanks