Hey guys, just finished fixing up an ailing 975. The heavy metal box in the bottom was broken out from its mounts and was doing some damage in there. After re soldering wires and gluing back some pieces she is functioning great! However the left channel is a bit quieter than the right one. I can adjust the balance to compensate, but has anyone ever run into to this on this model and what was the cause? I have cleaned the balance knob ( and all the switches). Though I still get a hint of static from time to time when adjusting so they may still need to get worked some more. Thanks!