[R-390] R390A antenna relay troubleshooting

[Barry]

Hi Peter,

You can always disconnect the mini-BNC cable from the relay on the inside and connect the antenna to that cable (or, at least, be able to touch the antenna wire to the center conductor if you don't have the correct connector handy).  If you get a signal that way, then the antenna relay is most likely bad.

Thanks,
Barry - N4BUQ

----- Original Message -----
> From: "peter murphy via R-390" <r-390 at mailman.qth.net>
> To: r-390 at mailman.qth.net
> Sent: Thursday, March 15, 2018 11:56:03 PM
> Subject: [R-390] R390A antenna relay troubleshooting
> 
> Hi all,
> I have a nice Chuck Rippel restored R390A that has been working fine for
> about 18 years. One day recently it stopped receiving as if the antenna was
> disconnected.  No calibrator signal either.  Then I noticed the familiar
> relay "click" was gone as I switched to STANDBY or CAL.
> My first inclination is to remove the relay and clean the contacts.  Before I
> do this I wanted to check with you folks and see if I am going down the
> right path on this.
> BTW I also have a second R390A that is working FB.  Maybe swap the relays and
> see what happens?
> I notice there is a replacement relay on eBay right now, wonder if these are
> hard to find and if I should snap it up while one is available.  $25+
> shipping
> Thanks for any help on this.
> 73,  Pete  W6WY near Redding CA
> 
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