Hello Demis,
you may want to try reseating the DR7 first. I would say that EXACTLY 2
MHz offset indicate a digital problem. The relevant circuitry sits on
the DR7. The connector is on the upper left when the front looks to you,
9 Pins. If you have an intermittent there, it could cause the problem
you described. A little bit of Deoxit may help prevent further contact
issues.
As always... whenever there is something strange happening on a TR7 or
R7, reseat the boards first before you do any alignment.
Best 73s
Dieter DL5RDO
Am 10.10.2017 um 19:02 schrieb Demis Bertoni:
Hello Dick,
thaks for your very quickly reply, I will do wath you told me next
weekend!
73, Demis IZ4ORS
2017-10-10 18:00 GMT+02:00 <[email protected]
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Today's Topics:
1. DRAKE R7A jump the frequency (Demis Bertoni)
2. Re: DRAKE R7A jump the frequency (DW Harms (Dick))
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Message: 1
Date: Tue, 10 Oct 2017 10:55:01 +0200
From: Demis Bertoni <[email protected] <mailto:[email protected]>>
To: [email protected] <mailto:[email protected]>
Subject: [Drakelist] DRAKE R7A jump the frequency
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<mailto:cakrxs_ttf-dzqpngtrqdrfazmph_7z8qkcpppyaqa0f5rw%2b%[email protected]>>
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Hi All,
I've problem with my R7A, this morning during a QSO at 14,222, the
reception frequency jumped directly to 12,222 for a few seconds to
return
to 14,222. I tried to rotate the band switch, the up and down
buttons, but
occasionally the frequency jumps. Where's the problem?
Do you have a solution to this problem?
Many thanks for possible help.
My best 73's
--
IZ4ORS - Demis Bertoni
Via Rebecchi, 13 - 41015 Nonantola
(Modena) - Italy
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Message: 2
Date: Tue, 10 Oct 2017 13:42:15 +0200
From: "DW Harms (Dick)" <[email protected] <mailto:[email protected]>>
To: Demis Bertoni <[email protected] <mailto:[email protected]>>
Cc: [email protected] <mailto:[email protected]>
Subject: Re: [Drakelist] DRAKE R7A jump the frequency
Message-ID: <[email protected]
<mailto:[email protected]>>
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Hello Demis,
Guess the PLL needs adjustment, check the procedure in the service
manual. I had something similar in my TR7 which was solved that way.
73, Dick PA2DW
Verstuurd vanaf mijn iPhone
> Op 10 okt. 2017 om 10:55 heeft Demis Bertoni <[email protected]
<mailto:[email protected]>> het volgende geschreven:
>
> Hi All,
> I've problem with my R7A, this morning during a QSO at 14,222,
the reception frequency jumped directly to 12,222 for a few
seconds to return to 14,222. I tried to rotate the band switch,
the up and down buttons, but occasionally the frequency jumps.
Where's the problem?
>
> Do you have a solution to this problem?
>
> Many thanks for possible help.
>
> My best 73's
> --
> IZ4ORS - Demis Bertoni
> Via Rebecchi, 13 - 41015 Nonantola
> (Modena) - Italy
> _______________________________________________
> Drakelist mailing list
> [email protected] <mailto:[email protected]>
> http://mailman.zerobeat.net/mailman/listinfo/drakelist
<http://mailman.zerobeat.net/mailman/listinfo/drakelist>
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IZ4ORS - Demis Bertoni
Via Rebecchi, 13 - 41015 Nonantola
(Modena) - Italy
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