Toslink Connection Flakey


I just bought a PS Audio Superlink D/A converter on eBay in order to enhance my Airlink experience with an Airport Express. Unfortunately, the optical connector on the back of the Superlink is flakey and only connects when jiggled. There is a screw on the outside of the box that holds the plastic connector in place. After playing with the screw and a few jiggles, the intermittent signal stopped. Now, no optical signal.

Can anyone suggest a fix?
ruffin
Sounds like a bad TOSLINK connector. Is it still under warranty from PS Audio.
Nope, this is a "classic" from 1992. I didn't pay much for it and I can use the coax connection with my headphone system. Wonder if the eBayer that I bought it from checked it beforehand. (He isn't responding to my emails...)
My eBay seller is now responding, saying that the optical connection worked before he sent it out. He suggested that I "clean" the connection. How the heck do you do that?