Post by dreamsindigital01 on Jan 7, 2021 11:10:54 GMT -5
My receiver is distorting on the center channel only. It becomes apparent at volumes above 18. I’ve done the usual swap speakers, FW update, receiver reset. I’ve attempted to reball the DSP chip as this tends to cause loss of audio in these receivers, but after two attempts, it hasn’t changed the distortion (I did install a heat sink anyway while I was in there). I also attempted to test all the caps and resistors in line on the center channel but I’m only a hobby tech so I’m thinking I missed something. Any thoughts on what part of the circuit could cause these symptoms so I can go back in and re check it? Thanks in advance.
I agree with Tibimakai on this one. Since it is working this is going to be tough to track down because everything will likely test good. If I were working on it I would immediately change all of the electrolytic capacitors on the pre-amp board and if that didn't work, I would start testing all of the transistors by comparing your measurements to a known good channel. If I found any transistors that tested different than those on good channels I would change out.
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