K2 Locked up

[Aaron K5ATG]

I was running PSK on my K2 and my cat got up on my desk and started moving
the VFO knob off frequency. So I decided to put on Lock and pushed the
button until it told me that it was locked, everything was normal. Then I
tried to unlock it and it would not work. I turned it off and restarted it
and everything is still locked. I unplugged it and again it is still
locked. The decimal point is not flashing. I looked in the K2 Manual and
could not find a place where I could resolve the problem. Does anyone have
any ideas?
Thank you
Aaron K5ATG
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[Guy Olinger K2AV]

Hi, Aaron.

Does a tap on the Rate button change the tuning rate, e.g do the two digits
right of the decimal point on the display disappear and reappear with
successive taps to Rate? If the tap on the button doesn't change the
display, it would be a mechanical or electrical issue with the button or
its connections.

If the tap DOES change the display, then the button is working and CPU
behavior is at issue.

73, Guy K2AV

On Tue, Aug 30, 2016 at 1:45 PM, Aaron K5ATG <[hidden email]> wrote:

> I was running PSK on my K2 and my cat got up on my desk and started moving
> the VFO knob off frequency. So I decided to put on Lock and pushed the
> button until it told me that it was locked, everything was normal. Then I
> tried to unlock it and it would not work. I turned it off and restarted it
> and everything is still locked. I unplugged it and again it is still
> locked. The decimal point is not flashing. I looked in the K2 Manual and
> could not find a place where I could resolve the problem. Does anyone have
> any ideas?
> Thank you
> Aaron K5ATG
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

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[Don Wilhelm]

Aaron,

It may be that it is not locked, but that the VFO encoder is not working
because the encoder board is contacting something on the back of the
Control Board.

Remove the top cover, then remove the 2 screws fastening the Control
Board to the Front Panel.  Tilt the top of the Control Board toward the
rear of the K2 and see if it starts working.

If that fixes it, put a piece of plastic or card stock cardboard behind
the Control Board in the area of the encoder board and then put the 2
screws back in.  Check to be certain it works with the screws snugged
before replacing the top cover.

73,
Don W3FPR

On 8/30/2016 1:45 PM, Aaron K5ATG wrote:
> I was running PSK on my K2 and my cat got up on my desk and started moving
> the VFO knob off frequency. So I decided to put on Lock and pushed the
> button until it told me that it was locked, everything was normal. Then I
> tried to unlock it and it would not work. I turned it off and restarted it
> and everything is still locked. I unplugged it and again it is still
> locked. The decimal point is not flashing. I looked in the K2 Manual and
> could not find a place where I could resolve the problem.

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