Electrical and Computer Engineering

844 readers

1 users here now

Electrical and computer engineering (ECE) community, for professionals and learners. Discuss ECE related topics here, for instance digital design, signal processing, circuit analysis, electromagnetics, microelectronics, power electronics, RF electronics, etc.

founded 1 year ago

MODERATORS

phreedf

dragontamer

Can I break my monitor's LED? (lemy.lol)

submitted 9 months ago by [email protected] to c/ece

23 comments fedilink hide all child comments

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!

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 12 points 9 months ago (1 children)

The LED doesn't make any noise. The only thing you could be hearing is a faint whine from the power supply current changing, although I'm surprised that an LED would have enough of an effect to noticeably change the sound.

Removing the LED will not damage anything. No reputable product would be designed so poorly that a small decrease in current would break something. Depending on where the LED is though, breaking/disconnecting it could be far more trouble than it's worth, and you might risk damaging other parts of the monitor trying to get to it.

I would agree with the other commenter, your effort is probably better spent on something to help you remember to turn the monitor off. Or, even just buy a smart outlet and plug your monitor into that, so that if you forget, you can use your phone to power off the monitor without getting out of bed.

[–] [email protected] 2 points 9 months ago

I made this same post in another community. A user there said that removing the LED may prevent the power from being drawn to that component, thus eliminating the sound. Do you think that's the case?