Hey, it's been a very long time since I've visited these forums...
I was wondering if a technically minded can help me with this problem - I've recently purchased an old HK PM 640 integrated amp and one side of the balance control is defective. Playing with the pot can result in getting the signal to come through the left channel, but very sporadically. Even when there is a signal some ugly popping noises can be heard. The design involves two separate pots for left and right that are controlled by one knob, and the right side seems to work fine.
edit: I had linked to the service manual of another iteration of the amp, oops! The correct one is here
Is this a simple matter of cleaning and/or replacing the balance pot, or could it be a more severe issue?
Appreciate any help!
Edited by fiddler - 3/15/14 at 2:19am