[1000mp] No reception on 10/12m and also no power ouput

[roland at proesch.net]

Hello list,

 

my FT-1000MP is not receiving on the 12m and 10m after around one hour of
operation. The signals are starting to disappear, so does the power output
on these bands.

On all other bands the reception is as expected.

 

Any idea where i should start to search for the problem? I already exchanged
the RF-unit but the problem is still there.

Can this be a PLL not working anymore?

 

I tried with google to find a good block diagram but was not very
successful. Is there any available? 

 

Any hint is welcome!

 

73 de Roland, DF3LZ