Re: [Elecraft] K2 just quit working.

2008-02-15 Thread Don Wilhelm

Gary,

The first order of business would be to look for an unsoldered 
connection.  The likely places are the Control Board and the Front Panel 
board.  Sorry, but I cannot speculate further without additional 
information.  If you do not find that elusive solder connection, then 
you should begin troubleshooting with the DC voltage measurements - 
again, the Control Board and the Front Panel Board are the initial prime 
suspects.


73,
Don W3FPR

Gary Krause wrote:
My K2 #6113 just quit working.  I was listening to the 40 meter band 
and all of a sudden no signal, and no audio.  The display works but, 
the frequency is frozen.  The only other control that works is the 
power level.  None of the buttons work and the frequency can't be 
changed.  There are no error messages on power up and it powers up as 
normal with "Elecraft" and then goes to the frequency.
I'm getting ready to take out the control board and have a look.  Any 
help would be appreciated.


I recently had a problem with SSB transmitting just stopping so, I may 
be related.



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Re: [Elecraft] K2 just quit working.

2008-02-15 Thread Gary Krause
I took out the control board and checked the solder connections.  I re 
flowed some of them that looked suspect.  My K2 is now up and running again.


Thanks,
Gary, N7HTS

Gary Krause wrote:
My K2 #6113 just quit working.  I was listening to the 40 meter band 
and all of a sudden no signal, and no audio.  The display works but, 
the frequency is frozen.  The only other control that works is the 
power level.  None of the buttons work and the frequency can't be 
changed.  There are no error messages on power up and it powers up as 
normal with "Elecraft" and then goes to the frequency.
I'm getting ready to take out the control board and have a look.  Any 
help would be appreciated.


I recently had a problem with SSB transmitting just stopping so, I may 
be related.


Thanks,
Gary, N7HTS
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Re: [Elecraft] K2 just quit working.

2008-02-16 Thread Geoffrey Mackenzie-Kennedy

Gary,

If the same problem happens again, try removing the Control Board MCU U6 
from its socket, and then putting the IC back into its socket. I had the 
same problem twice, once a couple of years after building the K2 and again 
about a year later, although the power level control did not work either. 
The cause of my K2's problem in both instances was poor contact between one 
or more of U6's pins and the socket due to 'corrosion', a known design 
problem with the type of socket supplied. In the end I replaced the socket 
with turn pin (machined) type.


73,
Geoff
GM4ESD


Gary Krause <[EMAIL PROTECTED]> wrote on
Saturday, February 16, 2008 at 2:33 AM



I took out the control board and checked the solder connections.  I re 
flowed some of them that looked suspect.  My K2 is now up and running 
again.


Thanks,
Gary, N7HTS

Gary Krause wrote:
My K2 #6113 just quit working.  I was listening to the 40 meter band and 
all of a sudden no signal, and no audio.  The display works but, the 
frequency is frozen.  The only other control that works is the power 
level.  None of the buttons work and the frequency can't be changed. 
There are no error messages on power up and it powers up as normal with 
"Elecraft" and then goes to the frequency.
I'm getting ready to take out the control board and have a look.  Any 
help would be appreciated.


I recently had a problem with SSB transmitting just stopping so, I may be 
related.


Thanks,
Gary, N7HTS


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