this post was submitted on 24 Jan 2024
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Monitors

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Can I break my monitor's LED? (lemy.lol)
submitted 9 months ago by [email protected] to c/monitors
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I own a Samsung monitor, and when it's in standby mode the LED blinks all night. My hearing is so sensitive, and my room so quiet, that I can actually hear the LED powering on and off.

So, every night I power it off manually. Sometimes I forget as I turn my PC off, and as I'm laying comfortably in bed, falling asleep, I hear it cycling, so I have to get out of bed, walk over, and turn it off, which delays my sleep.

At this point I'm tempted to take off the bottom panel and break the LED with a screwdriver, but I'm worried that this might change how the current flows through the monitor's circuit board.

I would appreciate any advice, suggestions or insights, thanks in advance!

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[–] ArbiterXero 9 points 9 months ago (1 children)

The LED won’t be making the sound, it’ll be the power supply to the LED, so breaking it won’t help you.

You’re better off hitting a switch on a power bar and killing the power to the monitor.

[–] hardaysknight 5 points 9 months ago (2 children)

The power supply would be making the noise due to the additional (though very very small) power draw from the LED. Tearing it off or otherwise removing power to the LED could very well stop the noise OP is hearing.

[–] [email protected] 2 points 9 months ago (1 children)

It's worth noting that I can hear it cycling on and off.

I can hear the LED when the monitor is on, but because it isn't blinking, it quickly becomes something I don't even notice.

But when it's blinking, it might as well be a semitrailer reversing. BEEEP BEEEEP BEEEEP.

To give you an idea how sensitive my hearing is, I can hear the buzz from a phone being charged via USB from the next room over (provided the doors are open).

[–] [email protected] 2 points 9 months ago (1 children)

You are really a dog, aren't you?

But in all seriousness I know exactly what you mean and can hear them too, it also seems correlated to quality of a power supply. I'm assuming something to do with proper isolation costing more.

[–] [email protected] 1 points 9 months ago

Being a dog would be better. They can at least filter out sounds fairly quickly, their brains don't even register the noise after a few minutes.

[–] ArbiterXero 0 points 9 months ago

Fair, possible, but ultimately killing the power is the best option.