I'm sure this has been covered somewhere but after searching I came up with nothing.
I pulled my old Hafler 220 off the shelf while overhauling my ST70. I popped the cover and rechecked bias, both channels fine at 277 or so. Left channel offset is fine at 2-5mv. The right channel is right around 200mv at startup and slowly comes down within range after about 10 min. Everything on the PCB is original. I just ordered new electrolytics from Mouser along with a couple of new films to replace the input caps. Does anything obvious come to mind that may cause this offset issue? The amp works fine and sounds good otherwise.
Thanks
I pulled my old Hafler 220 off the shelf while overhauling my ST70. I popped the cover and rechecked bias, both channels fine at 277 or so. Left channel offset is fine at 2-5mv. The right channel is right around 200mv at startup and slowly comes down within range after about 10 min. Everything on the PCB is original. I just ordered new electrolytics from Mouser along with a couple of new films to replace the input caps. Does anything obvious come to mind that may cause this offset issue? The amp works fine and sounds good otherwise.
Thanks