@ It has 3 issues.
The jamma to Falcon pcb on the 4th slot.
As you can see from the pics the brightness seems to be overdriven. I've adjust the pots on the VL labs adapter to no effect. My solution now it to tweak the monitor brightness adjust on the 20ez remote board I have installed.
The sound is also messed up on the crazy kong board. I think it has something to do with the 20ez audio amp overdriven the sounds. I was going to try some solutions. One is to wire the sound directly to the speaker bypassing the 20ez audio amp. Or maybe remove the volume adjustment pot on the Falcon pcb and see if that works.
3 big issue is the power. The VL switcher must be power hungry. DK3 just would not boot no matter what I did. Long story of trying to fund the problem. Rebuild original ps ect ect. If found the -5v on the switcher to be low not allowing the DK3 board to boot consistently. My only solution was to use a switcher PS so I could up the voltage. Not ideal but it all works now.
Or I was going to ditch the whole crazy kong deal and put a Fix in Fleix set up in the 4th slot.... lol