This came in with a blown TDA output chip. Replaced it and now it's working, however it has a gated/farty distortion thing going on. It's even worse on the lead channel. So it's common to both channels.
High v rails are +/- 21v
Low v rails are:
-14.9v
+13.8v
So clearly a low v supply issue, or a bad op-amp. None of the opamps seem to be getting hot. I can't find any obviously bad components in-circuit in the low v power supply. At this point I was going to replace the filters and 15v zeners and see what happens. Anyone have any ideas aside from this approach?
High v rails are +/- 21v
Low v rails are:
-14.9v
+13.8v
So clearly a low v supply issue, or a bad op-amp. None of the opamps seem to be getting hot. I can't find any obviously bad components in-circuit in the low v power supply. At this point I was going to replace the filters and 15v zeners and see what happens. Anyone have any ideas aside from this approach?
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