[K4RY] K4RY: TS-450S repair: Positive prognosis at this point

[WB4LNM at aol.com]

I've been working for the past couple of days to repair the Club's Kenwood  
TS-450S 'synthesizer unlock' problem.  I've had some positive results this  
morning.  
 
One of several synthesizers in the radio seems to have a defective  
trimming capacitor that is changing value and sometimes becomes  intermittent.  
When I can get it to 'sit' in the right range, the radio  stays in good lock 
and sounds very nice.  However, when out of range, I get  the 'unlock' signal 
or a burbling, distorted signal when on the edge of  lock.  It's now been 
working for several hours without any problem.  
 
The capacitor is (naturally!) in a difficult place to replace.  If  this 
looks like it is the solution, and it does at this point, I'll go ahead and  
replace it.  That's all for right now.
 
73
 
John...
WB4LNM
 
 
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