[1000mp] mkv died

[Stu]

Hi folks

 looking for ideas as to what my problem could be

My 80m vertical showed high swr so I went out adjusted my antenna and then came back in checked swr and 
was still high checked on 40m was ok so checked 80m again was a little high so I spun the vfo and found 
where it was best was 1.7 then radio shut down. now radio wont switch on and the fp29 supply looks like 
its straining when I try to switch radio on

FP29 has correct voltage coming out of it will check under load later

Any ideas before I send it away for a few weeks holidays

Stu MM0BSM