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Old 11-23-2019, 11:29 PM
freakaftr8's Avatar
freakaftr8 freakaftr8 is offline
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Join Date: Sep 2007
Location: Folsom, CA (no not in the prison)
Posts: 1,778
I'm stumped. It's a 60hz AC crawl in the pic like a humbar. All caps are changed out. And iys definitely the power supply. I've never seen this on a solid state or SMPS device before. Its acting like dried out electrolytics. Could a transformer cause this? I mean there are smoothing circuits designed to filter out AC currents in the DC path but maybe too much to filter out?

If anyone as ever run a microwaves near a monitor or a tv, This symptom I am having is almost identical to it. When just the ost menu is activated before you apply video source the menu is pulsing in-and-out rapidly on the sides in pretty stable to the center when you run video, it has a subtle crawl to the picture and you can visually see light hum bars like a 60 cycle draw moving up-and-down screen. That symptom is more indicative to what I'm used to like my old CTC 16 with dried out electrolytics.
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Last edited by freakaftr8; 11-24-2019 at 02:28 AM.
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