[R-390] Dead 6MHz and 10MHz

[Cecil Acuff]

6, 10 and 23 mc all make sense....they share a common crystal in the crystal 
osc.  Y407 13mc.  28 mc maybe needs to be confirmed.  It uses a different 
crystal...Y415 15.5 mc.  Maybe a combination of things.  Dirty contacts on 
the crystal osc. switch and dirty contacts on the Y407 crystal.....

I would switch the bandswitch around quite a few times onto and off of 28 
Mhz....and pull the cover on the crystal deck and clean the pins on Y403. 
Maybe do all of them while in there.  DeOxit works wonders...

Hope that helps...

Cecil..
----- Original Message ----- 
From: "Fraser Bonnett" <FraserBonnett at adelphia.net>
To: <R-390 at mailman.qth.net>
Sent: Friday, August 26, 2005 11:15 AM
Subject: Re: [R-390] Dead 6MHz and 10MHz


> Upon further investigation I have no Calibration signals on 6, 10, 23 and
> 28MHhz bands.
>
> (This is some sort of electrical retribution for not using the radio for 6
> months!)
>
> Fraser, W3UTD
>
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