KX1 Problem

[Bob C.]

Has worked fine since building earlier this year but after returning from a trip via airline it starts transmitting as soon as I turn it on.  Sending 'dahs" with a key plugged in.  When I plug in a key I hear its side tone as I normally would under the continuous series of "dahs" being transmitted.   When first turned on I see the band is 14mhz then the display only shows led bars when it is sending.

I will take it out of the case later in the week and see what I can find but wanted to see if anyone else had experienced the same problem and what was the fix?


73,

Bob

WA4MQW



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[Don Wilhelm-3]

Bob,

This has to be a simple matter of a closed (or shorted) dash line.  Does it
behave normally with the key NOT plugged in?  If so, check the key plug
itself with your ohmmeter.  If you find a short between the shell and either
the tip or the ring, check the plug, the cable and your paddles.  If it is
the KXPD1 paddle, remove the rubber grips and see if the problem
disappears - if so, you can spring the contact leaves up a bit, and if not,
you may have to remove the cover over the hole and check to be certain the
wires going to the rear of the jack are not touching the metal body.

It is possible, but unlikely that the problem is inside the KX1.

73,
Don W3FPR

> -----Original Message-----

>
> Has worked fine since building earlier this year but after
> returning from a trip via airline it starts transmitting as soon
> as I turn it on.  Sending 'dahs" with a key plugged in.  When I
> plug in a key I hear its side tone as I normally would under the
> continuous series of "dahs" being transmitted.   When first
> turned on I see the band is 14mhz then the display only shows led
> bars when it is sending.
>
> I will take it out of the case later in the week and see what I
> can find but wanted to see if anyone else had experienced the
> same problem and what was the fix?
>

>
--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.5.432 / Virus Database: 268.15.26/601 - Release Date: 12/24/2006
11:31 AM

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[Bob C.]

Don,  I left out key info in my first post.  Problem exists even with no key.  Would  not have posted if the problem was a simple as a shorted key but maybe there is still a simple solution and I appreciate all responses.

Will go back and check voltages and resistances after Christmas.

73

Bob


Don Wilhelm <[hidden email]> wrote: Bob,

This has to be a simple matter of a closed (or shorted) dash line.  Does it
behave normally with the key NOT plugged in?  If so, check the key plug
itself with your ohmmeter.  If you find a short between the shell and either
the tip or the ring, check the plug, the cable and your paddles.  If it is
the KXPD1 paddle, remove the rubber grips and see if the problem
disappears - if so, you can spring the contact leaves up a bit, and if not,
you may have to remove the cover over the hole and check to be certain the
wires going to the rear of the jack are not touching the metal body.

It is possible, but unlikely that the problem is inside the KX1.

73,
Don W3FPR

> -----Original Message-----

>
> Has worked fine since building earlier this year but after
> returning from a trip via airline it starts transmitting as soon
> as I turn it on.  Sending 'dahs" with a key plugged in.  When I
> plug in a key I hear its side tone as I normally would under the
> continuous series of "dahs" being transmitted.   When first
> turned on I see the band is 14mhz then the display only shows led
> bars when it is sending.
>
> I will take it out of the case later in the week and see what I
> can find but wanted to see if anyone else had experienced the
> same problem and what was the fix?
>

>
--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.5.432 / Virus Database: 268.15.26/601 - Release Date: 12/24/2006
11:31 AM



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