Anyone have a Jrok RGB to NTSC converter? Help needed..

[Shredder]

My soldering job must not have been very good, because I was getting a very jittery picture.  So, I tried adjusting the placement of the RGB S/G wires  It helped for a second, but then all of a sudden, the picture went dead.

I tested the TV with cable and  the TV works fine.  However, plugging the Jrok converter in to a VCR input, or another TV input still dosn't result in a picture from the game.  I cut the wires with a fresh snip, reconected them in case some of the solder came apart or something, and STILL no picture...

Any ideas?