Bart MK1 help needed

SMG · #1 10-11-2011, 12:47 PM

I have installed two Bart MK1 pickups and a Bart MK1 preamp (purchased seperately, used) in a project that I am working on. I wired it up, but I am not getting any output at all. I believe the preamp came out of a Lakland 5501, which has a slightly different configuration from the Cort JP, which is the diagram that I found online and followed. Does anyone have a diagram for the 5501 or other bass that uses the same system, or could you direct me to such a diagram online? (For reference purposes, violet wire that the Cort diagram shows to be connected to the postive off the bridge pickup seems to have been connected to a ground on the preamp...could this be correct?)

SGD Lutherie · #2 10-11-2011, 02:32 PM

Do you get any hum when you touch any of the wires when it's plugged in?

SMG · #3 10-13-2011, 01:26 AM

No, none at all, in either active or passive mood. That is part of what has me confused. I just rechecked the wiring to the diagram and everything is connected properly.