[Kenwood] TS-820S VFO issue

[Dave Edwards]

My R599D did (does) the same thing....spin the knob a bizillion times, and 
it clears itself up.

....Dave


----- Original Message ----- 
From: "Paul Kraemer" <elespe at lisco.com>
To: "Brian Harris" <cosmophone at yahoo.com>; "Kenwood" 
<kenwood at mailman.qth.net>
Sent: Sunday, March 28, 2010 11:12 AM
Subject: Re: [Kenwood] TS-820S VFO issue


> Brian
> Seems to be a common problem with the 820.
> When I got my first one it wouldn't operate above 350 which I suspect was
> top end of bands that were used most.
> Operating the knob back and forth cured it for a while.
> Ultimately I fixed it by cleaning the contact to the variable capacitor
> bearing in the vfo. Not to fear, there is a small access cover on the side
> of the vfo. Remove two screws and you are in. I worked contact cleaner
> around the bearing surfaces with a Q tip. Problem solved.
> Paul K0UYA
> ----- Original Message ----- 
> From: "Brian Harris" <cosmophone at yahoo.com>
> To: "Kenwood" <kenwood at mailman.qth.net>
> Sent: Saturday, March 27, 2010 5:36 PM
> Subject: [Kenwood] TS-820S VFO issue
>
>
> I am working on a newly acquired TS-820S that has been in storage for 
> about
> 15 years. While it works in a fashion (receives and transmits), the VFO is
> really erratic. In addition to jumping around in frequency and drifting a
> lot, when I tune the analog dial above about 310 the received noise stops
> and the display goes blank. I assume this is because the VFO has stopped
> oscillating. When I tune the analog dial below 310 or so, the VFO starts
> oscillating again and the display comes back one.
>
> Before I tear into the VFO to clean everything, resolder any suspect 
> solder
> joints and apply some Deoxit to all metal contact surfaces, I am curious 
> if
> anyone on the list has experienced similar behavior.
>
> Thanks in advance.
>
> Brian Harris, WA5UEK
>
> phone 214-763-5977
>
> email cosmophone at yahoo.com
>
> website www.myhamshack.com/wa5uek
>
>
>
> When they call the roll in the Senate, the Senators do not know whether to
> answer "present" or "not guilty."  Theodore Roosevelt
>
>
>
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