[no hardware issue] UHF tx transistor burned!!

[EB3AM]

Hi, A few days ago I noticed that my signal on the repeater is loose. Today I put the power meter and saw that in UHF I have no power. At most 50mW power.
It doesn't matter if you choose 50mw or 5w ... same power.
I guess it’s not a software problem, and I’ll have burned the UHF transistor.
Does anyone know the reference?
Which line is the UHF in the picture? In VHF everything works fine. The rx also works well.

[G4EML]

See Jason’s website at http://members.optuszoo.com.au/jason.re ... 77mods.htm

Interestingly your picture looks like the two PA transistors are the same. Jason’s picture shows them as different. Maybe some cost savings by the manufacturer.

[EB3AM]

I do not understand anything
Today I checked with the Bird meter and the uhf plug the power, and it did not go up from 50mw

Then, at home, I updated the fimware and sent the vpr voice file to check if it sounded good.

Well now I have UHF power again ... the 5w and more ...

I guess something wasn’t right and for some reason I couldn’t turn up the power.
I was lucky.