[Kenwood] TS-120S Question

Tue, 19 Mar 2002 06:36:08 -0600

Probably shorted switching diodes in the RF unit. Especially if it does the
same thing in SSB. Also if it does it on the higher bands and not the lower
it is a loose ground on the RF board. Just loosen and retighten the screws..

Clif Holland, KA5IPF
AVVid
Authorized Kenwood and Icom Amateur Service
www.avvid.com
1-800-214-5779
----- Original Message -----
From: "Dennis Berry" <[email protected]>
To: <[email protected]>
Sent: Monday, March 18, 2002 10:49 PM
Subject: [Kenwood] TS-120S Question

> Thought I would post this question here to see if anyone remembers a
similar
> problem.  I have a TS-120S that I've used for mobile and just a back up
rig.
> Had the thing for a long time and always worked well.  A few weeks ago, I
> got it out to fire it up and make sure things were still working.  I had
it
> going to a dummy load and all appeared to be working OK.
>
> At some point, either due to a bad coax connection or whatever, I looked
up
> and the power was down real low.  It was not drawing much current either.
> So I shut it down (more in frustration and that stupid feeling one
sometimes
> gets hihi) and let it cool down to see if that would make any difference.
>
> Well, the power did come back up, it puts out nearly 100 Watts, but I
cannot
> control the power out with the carrier control anymore.  At least I think
I
> use to be able to turn the power down with that control.  If I turn the
> control down 'quickly', I see the power go down, but then comes right back
> up to full power.
>
> Going thru the old memory banks, does anyone recall what this problem may
be
> or give me some hints on where to start looking?  I've given the radio the
> 'sniff test', and nothing is jumping out at me as having been hot in the
> process.
>
> Thanks in advance for any replies I get.
>
>     Dennis, NU8S
>
> - - -
>
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> Larry Wilson KE1HZ [email protected]
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