10 Apr
2008
10 Apr
'08
9:55 p.m.
From: dgriffi at cs.csubak.edu
---snip---
It happens perhaps once every ten seconds. The disturbance is something
like a ripple or wave that crawls up the side of the screen.
Hi
It sounds like a bad primary filter capacitor. I assume it is a switcher.
If so, there are high voltage capacitors on the primary side.
If it is a linear, it would be low voltage on the secondary.
Try adding additional capacitance in parallel with the one that is there.
If it gets better you'll know what to do.
Dwight
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