Turned-up volume causes interference on Sony 2002?

Turned-up volume causes interference on Sony 2002?

Post by the Man with the Pla » Fri, 23 Feb 1990 05:56:47

I have a Sony 2002 (a 7600D outside US?), and when using it recently noticed
that turning the volume up a ways (like beyond halfway) seems to cause a loud
buzzing sound.  I thought at first it was outside interference from electrical
whatnot, but then discovered than turning the volume down makes it go away
(and the signal is audible enough I can tell there is not interference).  I
had some "Walkman"-type speakers which I plugged in to it, and the problem
seemed to go away (but, of course, I don't want "simulated pseudo-stereo" of
SW broadcasts :-).

So, my assumption is that the speaker, when operating "loudly," interferes
with the set in some way.  Could anyone elaborate/explain/dispell this, and
is there a solution?  Is this a problem solved, say, in the 2003 (7600DS?)?

One last thing:  should I be able, under average-above average conditions,
to receive Radio Luxembourg with a 2002 from the Midwestern USA?  I've been
able to receive a lot of stuff talked about here from Europe.  I thought I
might have been listening to it, but I couldn't get the volume loud enough
to hear the faint signal!

Thanks--

 
 
 

Turned-up volume causes interference on Sony 2002?

Post by Shrikant Rana » Fri, 02 Mar 1990 11:46:26



Quote:> I have a Sony 2002 (a 7600D outside US?), and when using it recently noticed
> that turning the volume up a ways (like beyond halfway) seems to cause a loud
> buzzing sound.  I thought at first it was outside interference from electrical
> whatnot, but then discovered than turning the volume down makes it go away
> (and the signal is audible enough I can tell there is not interference).  I
> had some "Walkman"-type speakers which I plugged in to it, and the problem
> seemed to go away (but, of course, I don't want "simulated pseudo-stereo" of
> SW broadcasts :-).

Were you operating off mains or battery power? If the latter, this may be a
classic symptom of partly run-down cells. I have invariably found this to be
the case with the 7600D. (I almost never use batteries; the radio is too much
of a power hog.)

> Thanks--


Shrikant Ranade

 
 
 

Turned-up volume causes interference on Sony 2002?

Post by Your Name Her » Sun, 04 Mar 1990 03:01:18

Okay, my face _is_ red:  the most frequent suggestion was new batteries, and
sure enough, that fixed it.  I can turn up the volume as loud as I like with
no problems.  Several people asked about if I was using an AC adapter:  the
problem with that is that 1) it's not always convenient to find an outlet
and 2) the adaptor frequently generates interference.  I will try the external
"C" cell battery pack, though, to save the more portable internal battery set.
Thanks again,