DKJR PCB Rainbow cable required?

jumpman

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My DK 2 board set uses the rainbow cable, I would assume the DKJR boards also require this? Someone told me it is NOT used on DKJR.

according to mikesarcade it IS used on DK, DKJr, DK3, Popeye and Mario Bros boards to get power to the video board from the CPU board.
http://www.mikesarcade.com/cgi-bin/store.pl?sku=NINRAINBOW

So whats the final word?
Thanks for your help?
 
If you are using an edge connector, you need it. If you are using all the little connectors with one of them going to the video pdb, it's not required, but won't hurt it. - Barry
 
Thanks for the info, I have a dkjr pcb that I put new eproms in but it didnt work when I tried it. The board did not have the rainbow cable on it so I took the one off my DK board. A friend told me his DKJR pcb does NOT have the rainbow cable so I was thinking maybe that was why it didnt work when I tried it. The sound worked perfect but the video was somewhat scrambled but you could almost tell what was going on.
By the way neither of us use the edge connector. I will give it another try when I get home from work, without the rainbow cable.
thanks
 
I have 2 DKJR board sets, 1 the sound works perfect but the video is scrambled. The other board the video works perfect but the background music and the start up music dont work.

question:
can I disconnect the board sets where the 2 grey ribbon cables are and Use the video board from 1 and the CPU board from the other? Are all the sound functions from the CPU board?
 
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