[R-390] Crystal Calibrator on the fritz

[Flowertime01 at wmconnect.com]

Jim,

The crystal calibration goes in way before E211.

Some where along the line something did fall apart.
Start with 150 UV into the IF deck and get that half of the receiver 
working.
Then you can get 455 into E211 again and set T208.

If you have too, then you can work back through the RF deck mixers using 
your signal generator.

Do check the mechanical adjustments and the cams before you do a 
realignment on the RF deck. 

I'll vote for cleanliness. Time after time we find a pin on a tube socket 
or other connector that has oxidized over time and just needs cleaning. The 
next level is the ground lugs in the decks. You cannot even see the problem. 
The things check good with an Ohm meter. You pull the bolt, put the lug back 
to gather and a problem goes away when you get the right one. You get a 
fresh cup of Java and ask your self, Self what was that all about?

Once you get the IF working, do start back stage by stage. It will take a 
lot of signal into the stages so do not be miss lead by how much signal it 
takes as an indication you need to work on a stage.

If you put the signal into a test point and the proper trim caps and proper 
slugs align and change the output level and then peak up the output, accept 
the stage is OK.

Likely as not it will be tubes and alignment.

If you get stuck send us some more mail.

When your all done do tell. 

Roger AI4NI</HTML>