[R-390] Update to 3 Mc issue with R390A
Flowertime01 at wmconnect.com
Flowertime01 at wmconnect.com
Tue Mar 22 19:45:15 EDT 2011
Steve,
An update on the 3Mc issue, 20Mc is having the same issue.....
There's your clue. 3 and 20 share a crystal in the 2ND osc deck.
When you switch into 3 or 20 the shock bumps the crystal, but the gain is
to low to keep it going so it dies a slow 30 second death.
1 clean the crystal socket and crystal pins in the OSC oven.
2 clean the tube socket pins.
3 clean the switch contact.
4 clean the trimmer cap on the OSC deck.
Try to clean the tube socket and crystal sockets as you can do that without
pulling the RF deck.
If you do need to pull the RF deck then take the time to do a full clean,
polish and lube. Save your self from doing it one band at a time as they fail
from crud.
If that does not fix it then you will need to get a replacement crystal.
Roger Ruszkowski</HTML>
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