How to know if 32x is powered on without video

Hey all. Im doing a psu mod and right now and the psu im using is rated at 12v 4A

I supposed that it would be enough to power a model 1, cd model 2, and a 32x.

The pus powers the gene and cd just fine but adding the 32x gives me no power across the board. I assume there just isn't enough amperage getting through.
I revered the wiring on my home made cable and then everything turns on, but im pretty sure it's just because now the 32x has the power lines revered and now gets no power. But im asking here just to be sure.

So is there anyway to tell if the 32x is actually getting powered on without video?

I currently dont have an adapter cable for a model 1 genesis. Ill be making one soon. In the mean, any way to tell?

 

You can plug the AV cable straight from the 32x, it won't play properly (as certain sprites in each game are drawn by the Genesis), but you should still be able to tell if anything is showing up.

If you don't have a cable, the Genesis model 2 AV cable works fine for it.

 

Awesome thanks so much! Did not know that.

As for the psu, that rating rating should be enough to power everything right?

 

It doesn't work without the video from the Mega Drive/Genesis as it's a genlock type device. It doesn't have a proper reference to generate video without a source of Sync (which happens to be the Mega Drive unit)...

If it works you will get the PWM sound (extra 32X audio channels) and a blurry blob of wavy colors which is what would be the 32X video, but because of lack of sync it will be a mess ....