repair Hartke 1400 bass amp?
My son got a Hartke 1400 Bass Amp from someone who was throwing it out because the 1/4" input jack no longer connected properly. It appears to be on a circuit board along with the "send" and "return" jacks, and the "contour switch".
Is there a way to replace the jack or the entire circuit board described above? If so, how can I find the part? Any other advice? THANKS!!