[TenTec] 544 Troubleshooting Help

Barry N1EU n1eu@hotmail.com
Fri, 09 Jun 2000 22:41:54 EDT

Hi Alan,

Thanks very much for the message.  You won't believe this, but I just 
wiggled the bandswitch back and forth and it seems to prove your hypothesis 
- working pretty well now.  When I switch bands, I can see an aberrant 
frequency display for an instant and then the correct frequency.  I'll get 
the can of De-Oxit out and give the bandswitch contacts a little spritz.

Yes, good ole simple 544 is back in business.  Thanks to you and Mike for 
the suggestions.  I love this little rig!

Barry  N1EU

P.S.  BTW Alan, I'm outside of Albany, NY - about 3-4 hours SW of Montpelier

>From: "Alan Zaur" <Alan.Zaur@mailbox2.hitchcock.org>
>To: "Barry N1EU" <n1eu@hotmail.com>
>Subject: Re: [TenTec] 544 Troubleshooting Help
>Date: Fri, 9 Jun 2000 20:41:23 +0000
>Greetings from Montpelier.  I have several Ten Tec rigs, including a
>544.  It appears as though your mixer oscillator is not making it to
>the counter--and not to the mixer either, if the receiver is "dead."
>My first guess would be that the switch contacts have gotten dirty on
>the band switch--have you tried wiggling them?  I'll give this some
>real thought and take a look at the schematic over the weekend.  Take
>heart, these rigs are generally easy to fix.
>How far do you live from Montpelier.
> > From:          "Barry N1EU" <n1eu@hotmail.com>
> > To:            tentec@contesting.com
> > Subject:       [TenTec] 544 Troubleshooting Help
> > Date:          Fri, 09 Jun 2000 18:13:05 EDT
> >
> > My 544 seems to have gone south (tired of all the rain up here I guess).
> > Out of the blue, the frequency displayed on 20-10 is around 9000Khz and 
> > 80-40 around 1000Khz.  There is a loud chuffing noise at about 5 "puffs" 
> > second.  I can still receive stations on the selected band underneath 
> > chuffing sound.
> >
> > Though maybe someone else had been here before, so would really 
> > any advice on troubleshooting.  I do have an oscilloscope.  BTW, 
> > power supplies had no effect.
> >
> > Tnx/73,
> > Barry  N1EU

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