Typically the NTSC convertor stole +12VDC somewhere in the HV region of the monitor, so I suspect your wire labeled B is actually B+. The common (return) line was cheated by using the video common. I have some NTSC schematics - I think I too have a hand drawn one for the WG convertor, but I seem to recall that it is the same as the Electrohome one. John :-#)#
Yes, I'm a laser guy. Purely for my collection. I've got a few neat laser games ... besides my son likes them.
I'm having an issue with getting my Cliff Hanger finished.
...
The card that came with the game has two problems. One, wires were cut so I'm not 100% sure what goes where. The best schema I have is hand written and has a wire that I'm not sure about (just labeled "B" and was hard wired to a Sanyo? Monitor for blanking...). Two, I don't even know if it is working. Aside from the "B" line, I hooked it up how I thought it would work but I didn't get anything. I'm going to play around with it a little more but I would think that any old NTSC should work. It looks like the output signal is just not strong enough to drive the VMB and so it looks very bad
--James Bright www.QuarterArcade.com Restored Arcade Games for your Home
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