[Elecraft] K2 swr problem

[Robert W Coakley]

Hi.

My 3 1/2 year old K2 (SN 3432) with KPA 100 swr circuit seems to have
developed a problem.  Into a dummy load at 5 W with an external swr
bridge also connected, it indicates swr of about 5:1 on 80 meters down to
1.7:1 on 20 meters.  That's the lowest I can get by adjusting C1.  The
external bridge indicates 1 on all bands.  It didn't used to do this. 

C1 adjusts to minimum in two places (so I am not at an extreme value).
Nothing looks smoked.
I do get power out to the dummy load.

Anyone run across this before?

Bob