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Cannot get this monitor to sync with the original Jamma cable in a Mortal Kombat 2. I noticed that the Vert and Horizontal sync pins are not being used. I'm assuming Comp is the video signal which is in between these two sync pins. I've been trying to tweak the image with the remote board to no avail. Do those pins have to be grounded? Any input would be much appreciated. I attached a pic of what I'm dealing with:
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