[R-390] I had a working R-390A before I started (sort of)

Jim Green jagreen3 at sbcglobal.net
Sat May 12 15:25:52 EDT 2012


Roger,

Thank for all the assistance and the cookbook recipe for  locating the  
problem. It was a problem in the IF deck. After failing the tests from  
your instructions I  went back and started a DC analysis. The voltages  
were pretty wonky so I discontinued the DC analysis and went back to  
carefully look over my work of replacing the caps in the IF deck.

I found the bottom connection of R536 was shorted to ground. I also  
made sure all the caps I replace were connected to the proper points  
by the schematic. I found no other problem, but moved a few wires  
around to be sure they were not shorting.

The result is I have a working receiver again!

I plan to pull the IF deck again this afternoon. The filter switch  
feels kind of mushy and I want to see if I can give it some snap.

Thanks Again!

Jim


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