output problem
output problem
It's unlikely to be the pickups. For all three pickups to have gone bad (which is what I inferred from your post) in such a extreme fashion is very unlikely.
Did it just suddenly stop working, or was it after someone fiddled with the wiring that it stopped working?
In the former case, it's more likely a faulty component than faulty wiring. In the latter case, it could be something as simple as the pot having been wired in incorrectly, or the output being shorted to earth.
Before you do anything, check that the wiring conforms is exactly the same as a wiring guide says it should be. Good ones, with visual-style pictures, can be found on the Seymour Duncan website.
For the most thorough faultfinding: since you changed the pot, I assume you can solder, so try this: unsolder the pickups from the pot, and solder them one at a time straight to output. If each works, then they're not the problem. Then solder one of the pots in, if it works, same deal. Then the other pot(s) and the switch in turn, checking after each. You can go straight to the more likely culprits (like the selecter switch) to save time, though - just do it in a logical order :)
If you have a multimeter, you can test each component easily enough to save some soldering, too.
did you recently replace the pickup?