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Seeking BTDT for 3314A repair


Dave
 

Right at the wrong time! I'm in the midst of a development project
and my 3314A went south.

The cause may be quite evident. We had a four day power outage,
during which time, the workshop outbuilding dropped to 28 degrees F.
The building goes un-powered at night, so the 3314A did not suffer any
sort of line transients.

Now, back at the bench, working on the projects...the 3314 isn't working.

Symptom: Push ON....first time, scattered random flickering on the
various front LEDs, then all went dark. Simultaneously a
high-amplitude square wave is generated out the OUT jack, starting at
a few hundred kHz and sweeping downward to sub-1Hz. Second time, no
front panel indications at all, but output behavior is the same. All
subsequent power-ups have yielded the same results.

I'm starting with the assumption that the power supply took a hit
somehow, but do these symptoms lead anybody to say "Hey! I had one do
exactly that and it's C56 on the Power Supply board!".

Hey, I can hope, right?

TIA,

Dave W8NF
Hillsboro, OR

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