I bought a Triforce listed as broken on eBay. It was listed with this description:
eBay seller said:
when tested triforce picture comes up then screen goes black and will not load game
I got it today and it booted and had boot screen audio, but video wouldn't sync well in spite of filter board DIP switches set correctly, and there where black bars in the video. I didn't leave it on very long in this state, but it once faded to black completely.
I tore it apart, recapped the baseboard and crossed my fingers...
I'm very happy to report that this process has resurrected yet another Triforce for me!
I'll be replacing the noisy case fan, but otherwise not bad at all for $150 shipped. My cheapest type 3 so far, and I didn't have to source it from Japan.