Go into single lamp test. Scroll until you come to the first working one, go one back and check the connectors. Rainbow is piggybacked off of W3 which controls the Lion and Scarecrow lamps as well. Let us know what you find.

Did you reboot the machine? If it is a signal glitch that should reset it. If it is a bad board then you will need to bypass it for now and tell the software that it is bypassed. It is best to look in the manual on page C-52 C - 59 to see how the boards are hooked up to each other. They are in a serial chain and if one is glitched usually all the rest down the chain ending with the Rainbow lights on the Munchkin playfield will be locked. If the same lights keep locking up try to bypass the first locked board.

Do you have a game with the buffer boards on the light boards?

bypass 67 and see if the rest come on. Which board is 67?

15 is probably your bad board although I don't think 14 is your last working board. According to the manual on page C-51, there are 6 boards between 14 & 15. You don't say those aren't working so I'm assuming they are good. While all the boards are sequentially numbered; the daisychain doesn't always follow that numerical order.

You need to disconnect board 15 and bypass it as explained in the manual on page E-11. Looks like you need to connect W2 to 16 for the bypass. Don't forget to go into the menu and turn 15 'off'. If the remaining non-working boards function properly after that then you've found your culprit. If they still don't work then you've got more investigative work to do. I'm betting, however, on 15 being bad.

bumping for an update

I don't have an explanation why W3 is working yet there numerous boards ahead of it that are not. When I've had a board go out, the downstream boards still worked. They just didn't work properly. Maybe that's what you have with yours. Or maybe the Wizard is screwing with you.....

Try bypassing 15 and see what happens. If that's not it then your problem is beyond me. My money is still on 15 being bad. Let us know.

When there's a bad board, the downstream boards do funny things at different times. They might not work at all, be locked on one color or light up randomly with different colors.

Sounds like 15 is your bad boy. Submit a ticket at the help desk and JJP will get you a new one.

to make sure 15 is bad, and not a connector, swap it in with a known working board.

Good deal! Lloyd is the best! JJP lights boards.....not the best.