Help PA gone crazy

classic Classic list List threaded Threaded
2 messages Options
Reply | Threaded
Open this post in threaded view
|

Help PA gone crazy

g3pjt
Hi

Thanks for reading this.

Turned on and pressed the key and the warning 'PA hot ' has come up and then
'Hi refl' and the sidetone sounds garbled. The Fan has come on full.

Done some checks.
The voltage on the temp sensor point is zero but so is the voltage on '5B'
on pin 15 of U1 - so that is consistent. No error is shown on the PA menu
entry.

Now after about 30 mins the fan has just gone off and all seems to have gone
back to normal.

Set up is K2 ( version 2.04p 1.09) KPA100 ( 1.06), KAT100.

Any ideas ?

73

Bob G3PJT



_______________________________________________
Elecraft mailing list
Post to: [hidden email]
http://mailman.qth.net/mailman/listinfo/elecraft
You must subscribe to post.
Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm
Elecraft page: http://www.elecraft.com

Reply | Threaded
Open this post in threaded view
|

Re: Help PA gone crazy

K7MAS
Hello Bob and fellow Elecrafters:

G3PJT wrote:

> Turned on and pressed the key and the warning 'PA hot ' has come up
and then
> 'Hi refl' and the sidetone sounds garbled. The Fan has come on full.
>
> Done some checks.
> The voltage on the temp sensor point is zero but so is the voltage on
'5B'
> on pin 15 of U1 - so that is consistent. No error is shown on the PA
menu
> entry.
>
> Now after about 30 mins the fan has just gone off and all seems to
have gone
> back to normal.
>
> Set up is K2 ( version 2.04p 1.09) KPA100 ( 1.06), KAT100.
>
> Any ideas ?
>
> 73
>
> Bob G3PJT

...I seem to have the same symptoms on infrequent occasion.  In
addition, when pressing the tune button, the K2 re-sets as if the power
had been cycled off..or the SWR is very high.  This is not the case
(high SWR), as the vast majority of time, the K2 tuner (KAT100) matches
to the antenna immediately and the radio functions flawlessly.

73, Mark, K2 #874


_______________________________________________
Elecraft mailing list
Post to: [hidden email]
http://mailman.qth.net/mailman/listinfo/elecraft
You must subscribe to post.
Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm
Elecraft page: http://www.elecraft.com