[Yaesu] FT100MP MV help needed

[Andrey Teterukov]

Hi folks,

I am an beginner in using this radio and found one problem that can't recognize. Hope to get a help from gurus. 

Antenna tuner works fine on all bands except 10m. While I try to use tuner
to tune radio on 10M band it takes about 1 minute and then radio's SWR-meter 
shows SWR 2,2 and radio produce about 70 watts only. 
I replaced antenna to 50 Ohm dummy load and got the same result - radio's 
SWR meter shows SWR 2,2. But...external Daiwa SWR meter shows 
SWR - 1,1 - perfect. I tried to switch off tuner at all and ... got SWR 1,1 
on radio's SWR-meter and full 200w power output. Even after connecting radio back 
to antenna radio's SWR-meter showed SWR 1,1 while external SWR-meter - 1,7.
What is problem - why radio dose not work properly with tuner and dose work good
without it? On other bands I have no problems with tuner even higher
real SWR. Is it common problem with this radio or just tuner dose not
work on 10M.
I would be very appreciated for any idea.
Thank you in advance.

73, Andy
EU7SA