Quote Originally Posted by Doc View Post
Is your projector wired up for differential colour signal?

I had a Laserwave red that wouldn't light until I grounded it to P25 rather than wired up for differential in the DB25 connector (FB3's are single ended output).
yes it is wired differential... sounds like a likely culprit... you would think they would at least tie the negative color outputs to ground to prevent this... sigh

oh well, I am not going to rewire my projector just to make the fb3 work so I guess I will never know if the blue pin actually works... gonna be using it to run the scanners on my beam tables