Here (https://forums.arcade-museum.com/showpost.php?p=3653332&postcount=67) I replaced both the TR373 and the TR374 on the sound board and that fixed my hum.
Have you tried that?
Fixed my hum.
Semi necro bump of the thread here but I just have to share this with you all.
I have a DKJR cab. It had both a nasty hum and the "jumping-sound siren"
I did the following to the sound board.
1.) Replaced all electrolytic caps.
2.) Moved the small cap and installed the trim pot...
Only 14 units where ever made of Big Bang Bar so there's not many people out there who can help you with this. I have played it more than once but can't remember how the ramp works. I think you loop somehow to turn on the pole dancer..
I've got some pics of the game but nothing that helpes here...
So can we make a deal here for a DK/dkpe with the roms and a IC socket?
You have Sweden in the list of countries but the page won't make a shipping estimate so ordering is blocked.
Pretty please with sugar on top.