[R-390] R-392 Audio Problem

[Robert Nickels]

I just noticed that my R-392 has an audio problem.  The receiver seems to
work OK otherwise, except the audio level is very low, barely audible on
LS-166 speaker at full AF gain.   The odd thing is, there's not much
distortion until you crank it wide open - just a fraction of the normal
amount of audio power.   Before I tear into it, I wonder if anyone has run
into this problem or has any suggestion of what might cause it.

Thanks and 73,
Bob W9RAN