Jamma, MVS harness question compatibility

Hey Everyone. I have the following PCB's
Tetris
Wayne Gretzky
Killer Instinct
Now, when I tried tetris on my mvs harness, I got picture, but no sound or coin up

When I tried Killer instinct, well, it worked fine.

I tried gretzky and all I got was a very dim, white picture of the game in motion.

I just sent my mvs harness in to be combined with a Wayne Gretzky harness, all in all to give me a JAMMA Harness. My questions are..
Will tetris coin up and sound in JAMMA?
Will Gretzky work on a dedicated 4-slot cab monitor?
Thanks a lot guys. Help is very much appreciated!!!

go to <a href="http://www.hardmvs.com" target="_blank">www.hardmvs.com</a> and see where the -5 volt lead goes on your mvs harness and add it.
It wont hurt the neo { its the pin on the mvs that dosent go anywhere }and it is needed on some jamma boards.
I have a Rastan jamma board that plays good and looks ok but the sound is garbled.
Then I added the -5 volt wire and its perfect.
Try that and see if any of your problems still exist.
Also check your voltage coming out os your power supply, that can cause issues like the ones you are describing.
Good luck !