All voltage test points are within spec. The problem is it hums like a toothless old lady at church.
The thing I find odd is the input jacks are not physically grounded. When I have a cable plugged into the input and short it out the hum is worse. However when I take a jumper wire from the chassie ground lug in to the input jack ground it is dead quite. What am I overlooking?
I bought the replacement input jacks from Dynaparts as akit and wired the stereo/mono switch in.
I have not changed the GZ-34. I am not sure were to go now. Any help would be nice