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Old 11-25-2019, 04:56 PM
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freakaftr8 freakaftr8 is offline
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Join Date: Sep 2007
Location: Folsom, CA (no not in the prison)
Posts: 1,778
My scope is picking up excessive ripple on the 117v output. tbw other boards output is minimal. Barely noticable on the scope. The ripple is also jittery when no video is displayed. Just the OSD. When video is displayed the jitter slows down and just barely moves up and down on the scope.

I'm having an obvious filtering issue. There are shunt capacitors but all read good. There are two LFT line filter transformers located at T601 and T602. With an ohmmeter they read ok. I'm sure if thay had internal damage I wont be able to tell just by a measurement thou.

Trying to figure out what the freewheeling device is used and how its applied here.
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Last edited by freakaftr8; 11-25-2019 at 07:24 PM.
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