My Sabre bit it a while back, and have been stumped on what might be going on - brought it to a reputable local repair tech recently, and they weren't successful. Basically the output went down to almost nothing, new battery - no improvement. Most recently I contacted Musicman/Ernie Ball and asked if they could look at it, this was their response: Thanks for your interest in Ernie Ball Music Man! It's difficult to say if that model has a history of the electronics issue your experiencing, we do not get many inquires for the pre Ernie Ball instruments. Unfortunately we are not able to offer repair service on a pre Ernie Ball instrument in our factory. We were left with a photo copy of the wiring diagram when we acquired Music Man, we've attached it below if it can be of any help. We do not have any of the replacement electronic parts available through the factory. Not very helpful... Anyone know what alternatives I might have available?