On 2/3/2025 3:41 PM, Arnie Depascale wrote:
Hello,? I'm new here.? I have and have had for many years a RA6790GM that for years has worked flawlessly.? A few weeks ago I could no longer program frequencies.? Everything lights up with Zero's and the fault light was lit.
Sounds like a tantalum capacitor to me.? If you can check all the supply voltages and find one that's zero, then unplug boards one at a time you will find the culprit soon enough.? Favorites are the +/- 15V rails and the 20V rail into the A7 board which has a string of tants that can go one after the other, real annoying that is :^)
73 - Dan
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