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Old 03-20-2022, 08:21 AM   #3
nheather
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Join Date: Feb 2022
City & State: Horsham
My Country: United Kingdom
I'm a: Hobbyist Tech
Posts: 4
Default Re: Have I Inadvertently Fixed My Dell Ultrasharp U2312 Monitor

Spoke too soon.

But strange - because before I put the test leads on it fault was reliably the same every time - would start after a minute or two.

But with the test leads in place it lasted about an hour before the same symptoms started.

I monitored all the regulator voltages while the screen was flickering and switching off (when I say switching off, I mean like lost video connection not powering off) and they were all rock steady.

So beginning to think that this isn't a power supply issue but maybe something in the video input (I'm using the display port) circuitry.

It's like it is momentarily losing video connection - sometimes so short it is just a flicker and sometimes a little longer to lose the display for a second or two.

Cheers,

Nigel
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