[Elecraft] XV50 problem is worst ! Need help.

[Jean-François Ménard]

Hi to all,

Last week, my transverter XV50 was unable to receive properly... Only  
a small voice in the background... no S unit... the guy normally give  
me 10 or 20 over S9...  After a new alignment procedure, I was unable  
to peak R13 to the desired level. I was unable to get more than 0.043  
V. So my conclusion was that Q3 is dead.

I received a new Q3 transistor. Now it is installed. I did another  
alignement. Now with Q3, I can peak R13 very easy to the target of  
250mV. Note that before and now, my TX is still perfect. So no  
trouble with TX.

But even after Q3 changed.... it is worst. I do not receive anything  
at all... not even a small voice in the background.

If I listen to the background noise.... with or without antenna, it  
is the same. On the receiver input aligment, my noise generator did  
not make any difference ON or OFF.

So I really don't know where to start now. I don't have very much  
experience in finding trouble.

If someone could coach me where to start, I will really  
appreciate... :-((

Thanks for your times.

===========================

Jean-François Ménard / VA2VYZ
Elecraft K2 #4130 KX1 #999
FISTS #11896
SKCC #2245

Web: http://web.mac.com/jf.menard




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