Hi Again, To address your last question. The proximity/distance between the
rig and power supply sometimes will be critical. If r.f. gets to the power
supply, that's all it takes to go bonkers. Moving it inches, sometimes just
the angle will make a difference. Astrons are pretty well r.f. proofed, but
if there is a ground loop, you cant tell what may be at fault, all you can
do is vary things and find the sweet spot, or find that loose nut, or lifted
trace, or cold solder joint, or bad coupling cap. It could be an IC that is
just on the edge of failing, but its probably something a little more
dimensional, like a
component hanging by a hair, or three. Probe the little bugger, you'll find
it. When you solve it, it'll be oh so sweet. Walk away from it for a day,
then charge back in. When you least expect it, the fault will show up like a
hair in the porridge. good luck.
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