SCART to BNC adapter help?

Hey everyone, I bought a SCART to BNC adapter because I'm not very good at making cables, and I wanted to put my new PVM to use. There must be some power issue with power getting fed back into the console or something, as whenever I have one of my SCART cables plugged in, the console in question refuses to turn on. If I unplug it and put the SCART cable into another device, like a XRGB, it works perfectly fine. I have a multimeter and soldering iron but have no idea where to begin with this one. Any help would be seriously appreciated. Thanks! P.S. I am looking to fix it myself as the seller only sells them wired for European SCART and all my cables are Japanese wired. I asked the seller to rewire it for me instead of me having to buy a JP to Euro adapter but he sold it without any guarantees it would work properly as he has no Japanese cables to test with.

 

Fun fact: European and Japanese SCART cables are wired differently and do output power to automatically switch the TV over to the right input. No idea if this is your problem but I'd check to make sure the BNC cables are actually connecting in the right spots on the console side of things. I.E. Red to red, green to green, etc. Sounds like something is feeding power like you're thinking.

 

Thanks for the quick reply APE. I'll give it a look when I have time to bust it open, hopefully tomorrow. Here's some pics though to show even when the BNC end is disconnected the problem persists. I've never tried building (much less repairing) a RGB cable before so I would really appreciate if I could be walked through the process of what to check for. I have a multimeter and soldering iron, but no idea what I'm doing after that! I know Euro and JP are wired differently but is it possible to diagnose where the bad connection might be if I am just using a multimeter? I wouldn't be sure what to look for.

 

Personally I'd just start over from scratch and build a new cable (maybe you can just disassemble yours?) and only connect the pins that are actually needed, imho that's easier than trying to find some weird wiring issue. Your call. Anyways, for what it's worth, the adapter I made for my PVM has all unused pins floating (so no "unexpected" ground/vcc connections anywhere), and has worked great with everything I've thrown at it so far (well, besides the Dreamcast for some reason, but that might not be the cable's fault).