[Elecraft] dead K2

[Geoffrey Mackenzie-Kennedy]

Mike,

My K2/100 #3255 behaved in exactly the same way some years ago, actually on 
two occasions about a year apart. The problem was caused by dirt or 
corrosion on the contacts of the socket of the MCU U6 on the Control board. 
Pulling and reseating the U6 IC cured the problem on each occasion.

After the second episode I changed U6's socket to a turned pin (machined) 
type of socket, and the problem has not reared its ugly head since. The type 
of socket supplied with the K2 kit is often a cause of "problems".

73,
Geoff
GM4ESD



From: "worsr"
Sent: Friday, May 07, 2010 9:47 PM



> My K2 #5767 suddenly has quit working.  Upon power up today,  the freq. 
> readout is OK, but none of the buttons work and the tuning dial doesn't 
> change freq.  No error messages are seen at powerup.
>
> Anyone have any ideas??
>
> --Mike, W0RSR