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Displays Humming noise from monitor

Discussion in 'Hardware' started by wyx087, 14 Dec 2008.

  1. wyx087

    wyx087 Homeworld 3 is happening!!

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    i get a humming noise from my LG monitor, very strange, but very annoying. but after a while, it goes away, i believe it's gone when the monitor warms up.

    guess it's not normal at all to have such noise, what part is usually to blame and what's the estimated life left for this monitor?? still got 1 year of warranty left, is it worth to call them up? (how's LG's customer service in UK? )
     
  2. steelblade

    steelblade What's a Dremel?

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    Deffo fone em up while you have the chance... if its still under warenty, it shouldnt be making that sort of row. My CRT hums quite loud when some brighter colours fill the screen.. but its only now and then - I expect it to go eventually but it just keeps going... not sure what the problem is tho.
     
  3. GoodBytes

    GoodBytes How many wifi's does it have?

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    MY CRT performs a high pitch noise, where only a 20-30year old person can hear, when there is a lot of details on the screen, like lots of black text on white background. However, I know why it does that, and it's normal. Especially when the monitor is 4 years old, soon to be 5. In my case it's one of the component (probably capacitor) that performs vibrations which emits this sound. Now this issue is not new by itself many devices perform this, such as iPod's, all without expect, Intel Core 2 Duo mobile CPU's when system is idle.
     
  4. wyx087

    wyx087 Homeworld 3 is happening!!

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    searched online for a bit and found other two of similar problem. and they both reported that turning up brightness helps. so now i have brightness running at 100, turned down by nVidia control panel.

    i also discovered that by holding the top row of the monitor very firmly, the problem disappears.

    so, could this be a case of dying capacitor at the top row of backlights??
     
  5. mm vr

    mm vr The cheesecake is a lie

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    Or then it's just a little loose capacitor which resonates with the plastic.
     
  6. Krikkit

    Krikkit All glory to the hypnotoad! Super Moderator

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    The myth about capacitors causing the vibration noises is long-lived. Choke coils are the culprits 99+% of the time.
     
  7. mm vr

    mm vr The cheesecake is a lie

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    Uh yea I meant to say chokes but said capacitors instead... :duh:
     

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