[1000mp] More info on MkV blown front end.

lhlousek [email protected]
Sun, 31 Aug 2003 21:08:12 -0700


I did some troubleshooting.  There is a T/R circuit at the antenna input =
to the rig that employs three transistors, a pin diode switch,  and a =
relay.  The relay isn't being activated. I can make the relay work by =
supplying 12V to it and the rigs receives fine.  The PNP transistor that =
operates the relay is either blown or isn't getting the correct input to =
switch the relay. I need to do some more signal tracing to see if I can =
figure out what's going on.

Lou W7HV

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