Thanks. I've done a few searches. I found a so called service manual 
but it mainly referred to the firmware. I'm looking for a PCB layout 
plan so that I can accurately locate the UHF front end MOSFET. Any 
ideas? I'd rather not rely on interpreting the schematics!!

-- In ken_th-f7e <at> yahoogroups.com, Fred <glenndriech@...> wrote:
>
> Signals distribute via filters and switching diodes to
> RF amps according to band.  The circuitry doesn't seem
> tolerant of bad antenna mismatch or disconnection when
> transmitting.
> 
> Some reviews mentioning this can be googled for and
> see  http://www.ham.dmz.ro/kenwood/th-f7e.php
> 
> Fred.
> 
>  
> --- g8tzl2004 <g8tzl2004@...> wrote:
> 
> > I have noticed that my TH-F7 has gone a bit deaf on
> > UHF. Its not 
> > completely deaf - maybe 15dB down. I connected an
> > external pre-amp and 
> > the signals came up OK. The rig is deaf on both the
> > A and B band. The 
> > VHF side of the radio is OK.
> > 
> > Maybe the UHF front end MOSFET has blown? Is this a
> > common problem? 
> > 
> > Thanks
> > 
> 
> 
> 
> 		
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