Analog Audio dead

Hi All,

Thanks as always for all the extremely informative posts people make to this
list.

I've got a problem and am not quite certain how to go forward to fully
diagnose/remediate it.

My analog output appears to be dead.

In the past, when I wanted to play audio streams of relatively low
resolution (I believe it was < 96kbs), they would only play out the AT
analog out.  I have my AT digital out going through an external DAC and into
my stereo's AUX in.  The AT analog out is routed into the same stereo's TAPE
in.  To play 128  kbs streams, I would select the AUX channel on my stereo,
and to play < 96kbs streams, I'd select TAPE.  These low resolution streams
make up the overwhelming majority of the streams I have set up under my
TurtleRadio account.

Of course, for any high resolution source played on the AT, I could listen
on either AUX or TAPE to hear the stream.

This all used to work fine.

Unfortunately, for quite some time now - approximately 1 year - I've no
longer been able to get a signal from the analog out.  This means many of my
 TurtleRadio streams no longer run.

Is there anything I can do to:
     1) further diagnose the root of the problem (I assume some component in
the AT is gone);
     2) Remedy the problem once it is fully diagnosed.

Many thanks for any help you can offer.

Cheers,
Bill Bug