I purchased a Super Sprint and it worked great for the first few weeks but then the monitor had vertical collapse. I am going to repair the monitor but I wanted to make a RBG-VGA converter work to let us keep playing it in the interim. Also when I opened it up I found the previous owner had bastardized the power supply wiring and it was not getting clean 5.05V consistently so I am replacing it. Here are the two questions:
1. The RGB-VGA converter is pinned for a Composite sync and Vertical sync. The output from the Super Sprint video board gives a Vertical Sync, Horizontal sync and also has pin 6 for a Comp sync but it is not wired. I am assuming I can just add a wire into the harness from the Super Sprint video board to get the Comp sync? Will it cause issues if I don't have anything hooked to the Vid Return back to the video board?

2. The power supply feeds the Video BD, CPU BD, and Audio PCB with +5V, -5V . When I watched the video here (
) they used 2 separate power supplies to spread the load. Is that needed? When I look at the mounting wall it looks like there are old screw holes there?

3. The wiring harness also has a +Sense and -Sense tie in but the previous owner of my cabinet had them tied in to the 5V+ and GRND terminals on the power supply they replaced. I read on other threads on the form that this is ok, just confirming there is nothing different about this cabinet?
Here is a picture of the inside as is. Needs some cleaning and wiring management.

1. The RGB-VGA converter is pinned for a Composite sync and Vertical sync. The output from the Super Sprint video board gives a Vertical Sync, Horizontal sync and also has pin 6 for a Comp sync but it is not wired. I am assuming I can just add a wire into the harness from the Super Sprint video board to get the Comp sync? Will it cause issues if I don't have anything hooked to the Vid Return back to the video board?

2. The power supply feeds the Video BD, CPU BD, and Audio PCB with +5V, -5V . When I watched the video here (

3. The wiring harness also has a +Sense and -Sense tie in but the previous owner of my cabinet had them tied in to the 5V+ and GRND terminals on the power supply they replaced. I read on other threads on the form that this is ok, just confirming there is nothing different about this cabinet?
Here is a picture of the inside as is. Needs some cleaning and wiring management.

