[Kenwood] TS820S Audio Problem

[James Higginbotham]

Hello to the group.

Recently, my 820S developed an audio problem.  No audio, except an =
occasional snap crackle pop...  I checked the 9v on the AF-AVR board =
which was not 9v.  I replaced all the transistors (except the audio amp) =
and the 9v problem is now rectified.  Still wasn't any better than =
before.  I replaced the audio amp transistor last night with the =
replacement per service bulletin SB-954 (due to the fact that the =
original audio amp is no longer produced since 1989).  I guess you could =
say things are a little better, no snap crackle pop from the speaker.  =
Still no audio.  The service bulletin makes reference to changing out a =
resister if the audio is too low.  This, at least to me, sounds like I =
should be getting some audio from the speaker.  Has anyone on the list =
installed this service bulletin before and had similar problems?  Or =
does anyone have a disfunctional 820 or 820S that is willing to part =
with the AF-AVR board?

Thanks
Jamie
KC8KXI


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