Now what i can't figure out is whether or not it's
1) really dead
2) the video signals I'm pulling aren't strong enough to show anything
if it's #2, I'd know by listening for sound - as you can see in this picture I've long ago removed the connectors for A/V and have absolutely no idea where to pull sound from.
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That big black thing is the oscillator I replaced - it worked like this for days, so I know that's not the issue here.
For relocating I got lazy and didn't feel like removing the old one. They are in paralell, and I'm surprised that having both carts in doesn't crash it - rather it makes it quite crashproof! One cart is loose, no problem, #2 keeps on going!