[Elecraft] K2 hangs when using TUNE

[Simon & Liz Watts]

Don,
Thanks very much for your reply.  Of course it is working OK at present.  I 
will make more careful notes of the symptoms next time it occurs and report 
back.

Simon

----- Original Message ----- 
From: "Don Wilhelm" <w3fpr at earthlink.net>
To: "Simon & Liz Watts" <watts512 at btinternet.com>; 
<elecraft at mailman.qth.net>
Sent: Tuesday, October 10, 2006 12:45 AM
Subject: RE: [Elecraft] K2 hangs when using TUNE


> Simon,
>
> We really need more information about what you are observing - questions
> occur such as Does the LCD display show anything or is is blank?  If not
> blank, what is displayed?  Do you have any other indications, such as the
> LED indicator?
>
> What is the input voltage from your power supply when this condition 
> occurs?
> Remove the KPA100 and measure the voltage directly at the KPA100 input 
> power
> jack and also at the power supply terminals.  This sounds like a typical
> case of the power supply going into a current foldback state which will
> correct itself either after a time of low current or after the load is
> temporarily removed (by powering the K2 off).
>
> 73,
> Don W3FPR
>
>
>> -----Original Message-----
>>
>> I have a K2/100 #3834 with KSB2, K160RX and using a KAT100.
>> Occasionally, I experience a malfunction when using the TUNE
>> function.  The transmitter starts to transmit and then the whole
>> set freezes with low current drain, the receiver is dead and all
>> buttons are inoperative.  The K2 has to be reset by switching off
>> and then switching on again.  This state may persist for
>> successive applications of TUNE for some time but on each
>> occasion so far it has eventually reverted to normal working.
>> When present, the fault persists after the KAT100 is disconnected.
>>
>> Does anyone have any suggestions as to what may be causing this?
>>
>> Simon
>>
>
>