[Kenwood] TS-940S Transmit Problem on 15m

Dino Papas kl0s at cox.net
Tue Jan 2 11:52:04 EST 2007


Hopefully this may help someone with a similar problem.

For several years I've had an intermittent/fluctuating (and VERY  
annoying!) in power output on 15m.....sometimes it worked fine, more  
times than others I'd get a fluctuating power output or normal output  
with no modulation (of course right when I needed it to make a DX  
contact)--other bands worked FB.  I tried many different things like  
pulling every connector inside and giving it a shot of DeOxit; the  
famous "lift and drop from 6 inches" technique; I'd even heard that  
loosening and re-tightening the PL-259 on the output would help  
(actually, every once it a while that did do it surprisingly), but no  
permanent fix.

BUT, I recently replaced the memory/CPU batteries for the second time  
since buying this rig new in 1986 that after replacing the battery  
that's buried deep inside the CPU enclosure under the speaker  
assembly, the problem has disappeared.  Although the batteries didn't  
absolutely require replacement I'm glad I did as that CPU battery had  
actually started to corrode!  So I'm thinking that the fix had  
something to do with pulling that CPU box cover off and replacing it  
was the cure....'course I'll never know but if someone else is having  
a similar problem you may want to give that a try.

73 -- Dino KL0S/4


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