[Elecraft] K3 no effective TX on 3.5 or 10MHz bands

[andy.nehan@btinternet.com andy.nehan@btinternet.com]

This happened suddenly. It gives the usual output on all other bands 
using 5 watts as measured using a dummy load and my LP100A power meter. 
 
There is NO output at all on the 3.5MHz band and only 0.4 watts on 10MHz 
band when in data or SSB modes. Interestingly it usually (but NOT 
always) passes the 5watt self test on all bands except the 10MHz band. I 
have the latest firmware installed.
 
Any ideas of how I might fix this would be welcomed as there is no UK 
service available.
 
G4HUE Andy