[R-390] Diagnostic Help Needed

Carole White-Connor carolew at bellatlantic.net
Wed Feb 21 19:45:48 EST 2007


I powered up my new R-390A project tonight and the news isn't good. There is
static from the speaker but no stations. When I plug the antenna into either
of the inputs, there is no change in the static. The only place I seem to
get a station is around 780 khz but it's very garbled. I get nothing at 1250
khz, which is an AM station about a mile from my house.

Before powering it up, I replaced four missing 5814As with 12AU7s. I also
replaced the troublesome caps in the IF deck (as per Chuck's page).

I need some step-by-step instructions to diagnose the problem. The test
equipment I have is a VTVM and a signal generator.

Any help would be great appreciated.


Joe Connor



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