well i believe i fixed a problem i was having where my "HIGH" input wasn't working, but the "LOW" was in perfect condition...it appears as though a solder joint had simply broken. After fixing it and getting everything back together to test it...i ripped out some of the wires on the input jack (DOH, these solder joints are so weak!). unfortunately i can't read the schematic well enough to figure it out. i was wondering if anyone could help me out with this...either by taking a picture of their input jacks or any other way they can think to help. Its been sitting like this for too long, i've got two other amps that i've been preoccupied with, but the time has come to fix it and get one of my amps out of here!