Troubleshooting with a variac - Videokarma.org TV - Video

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Troubleshooting with a variac

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09-25-2015, 07:22 AM

kf4rca

VideoKarma Member

Join Date: Feb 2015

Location: Atlanta

Posts: 962

What happened to the knob?

I had good luck using a variac even on a switching power supply.
I was troubleshooting a Sony BVM 1910 that wouldn't turn on.
With the variac, I was able to bring it up just enough to see a picture before it would shutdown.
The problem turned out to be a partially shorted inductor in the switching power supply.

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