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EEVblog #1107 - Shocking 4K BENQ Monitor Problem!

EEVblog0 HN recommenders · 2019–2026
97K views · demo · evergreen · Uploaded 2018-07-20

Dave Jones of EEVblog investigates why a 4K BenQ monitor switches itself off, tracing it to static discharge from an office chair. He uses an oscilloscope to examine the static impulses.

Linked whenever someone reports a monitor blacking out from static electricity, as prior art on the same problem.

Electronics & circuit designRepair, teardowns & right to repair

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3 comments from Hacker News

@dazzawazza2019 · in “Everytime Employee 2 walks by a cubicle, one of the screens blacks out”

I posted this to reddit but I'm more likely to get a reasonable discussion on here. [VIDEO] Dave covers "static" turning off a monitor in this video. Could it be this?

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@grumbel2023 · in “Check if your IKEA chair is compatible with your screen”

There is an old EEVblog[1] video on the topic. Mine doesn't do it from chairs, but it regularly blacks out if I turn on the nearby LED strip. [1] [VIDEO]

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@deckar012026 · in “Fix monitor that goes black, off or blinks due to static electricity in chair”

It looks like the youtube embed is broken. It is supposed to link to a EEV blog video. It is wild how many times someone brings me broken equipment and it turns out EEV blog has already investigated the same issue for the same device. [VIDEO]

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