[Boatanchors] R390 A Problem

[mikea]

On Wed, Feb 10, 2010 at 03:14:18PM -0500, W2LTF at aol.com wrote:
>  
>  
> Hi All,
>  
> Those of you familiar with the R390A, can you please help me? Suddenly the  
> receiver will not receive any stations on any band. But the front panel 
> control  seem to function. In other words the filter switch does seems to have 
> its affect  on the receiver noise, as does the AF and RF gain controls. All 
> the filaments I  can see are lite.
>  
> Before I begin my investigation, I am hoping that someone has seen this  
> problem can point me in  a direction.

Check the continuity on your 3TF7 ballast tube. This is a common failure
point. After that, have a look at 

<http://www.hausernet.com/r390a/R390A-Y2K-Release-1.PDF>
<http://www.r-390a.net/Pearls/tubes.pdf>
<http://www.r390a.com/Commonfail.htm>
<http://jvgavila.com/r390a_2.htm>


-- 
Mike Andrews, W5EGO
mikea at mikea.ath.cx
Tired old sysadmin