My monitor whistles.

2008-02-13 12:50:42

#1

Lucien: Fantasma Parastasie; +1,451|6932

Or hums, or rings, or whatever you want to call it. Whenever my monitor is on, it emits a very high-pitched sound. It varies in volume from one day to the next. Usually it's hard to hear, but it's still really starting to get on my nerves. Plus, I fear it may be a sign of an early death for my monitor.

It's a Samsung 940bw. The ringing only happens when the screen is displaying something, so if it goes into standby mode the ringing stops.

So yeah, how do i fix it? what's causing it?

2008-02-13 12:53:11

#2

smartdude992: Keep your head down, smart's got a gun; +30|6210|Georgia, US of A

Lucien wrote:
Or hums, or rings, or whatever you want to call it. Whenever my monitor is on, it emits a very high-pitched sound. It varies in volume from one day to the next. Usually it's hard to hear, but it's still really starting to get on my nerves. Plus, I fear it may be a sign of an early death for my monitor.

It's a Samsung 940bw. The ringing only happens when the screen is displaying something, so if it goes into standby mode the ringing stops.

So yeah, how do i fix it? what's causing it?

check the plug in on the computer??

2008-02-13 12:54:30

#3

FloppY_: +1,010|6565|Denmark aka Automotive Hell

My TV does that........ I hate it

Your thoughts, insights, and musings on this matter intrigue me

2008-02-13 12:55:18

#4

smartdude992: Keep your head down, smart's got a gun; +30|6210|Georgia, US of A

wait, is it lcd, or crt?

2008-02-13 12:59:05

#5

OrangeHound: Busy doing highfalutin adminy stuff ...; +1,335|6928|Washington DC

Lucien wrote:
Or hums, or rings, or whatever you want to call it. Whenever my monitor is on, it emits a very high-pitched sound. It varies in volume from one day to the next. Usually it's hard to hear, but it's still really starting to get on my nerves. Plus, I fear it may be a sign of an early death for my monitor.

It's a Samsung 940bw. The ringing only happens when the screen is displaying something, so if it goes into standby mode the ringing stops.

So yeah, how do i fix it? what's causing it?

Most likely it is being caused by a small loose part that is vibrating because of the transformer (quite common). Your transformer is always vibrating, and as it ages sometimes something shakes just a little loose and just enough to also vibrate ... like a bell ringing, and the pitch of the vibration changes as power is increased or decreased through the transformer. You might hear it "whisp" through a frequency range as you turn it off

So, it is not necessarily something about to go bad, but that high-pitched sound can be VERY annoying.

Edit: very old televisions are notorious for this, but newer models have better quality transformers that hold together better.

2008-02-13 13:00:17

#6

smartdude992: Keep your head down, smart's got a gun; +30|6210|Georgia, US of A

OrangeHound wrote:
Lucien wrote:
Or hums, or rings, or whatever you want to call it. Whenever my monitor is on, it emits a very high-pitched sound. It varies in volume from one day to the next. Usually it's hard to hear, but it's still really starting to get on my nerves. Plus, I fear it may be a sign of an early death for my monitor.

It's a Samsung 940bw. The ringing only happens when the screen is displaying something, so if it goes into standby mode the ringing stops.

So yeah, how do i fix it? what's causing it?
Most likely it is being caused by a small loose part that is vibrating because of the transformer (quite common). Your transformer is always vibrating, and as it ages sometimes something shakes just a little loose and just enough to also vibrate ... like a bell ringing, and the pitch of the vibration changes as power is increased or decreased through the transformer. You might hear it "whisp" through a frequency range as you turn it off

So, it is not necessarily something about to go bad, but that high-pitched sound can be VERY annoying.

if its crt its the horizontal shift oscillator.

2008-02-13 13:06:16

#7

OrangeHound: Busy doing highfalutin adminy stuff ...; +1,335|6928|Washington DC

smartdude992 wrote:
if its crt its the horizontal shift oscillator.

I'm going to have to turn in my two EE degrees ... what in the blazes is a monitor's "horizontal shift oscillator" ?????

2008-02-13 13:09:02

#8

smartdude992: Keep your head down, smart's got a gun; +30|6210|Georgia, US of A

OrangeHound wrote:
smartdude992 wrote:
if its crt its the horizontal shift oscillator.
I'm going to have to turn in my two EE degrees ... what in the blazes is a monitor's "horizontal shift oscillator" ?????

its an internal component, i'm not entirely sure what it does, but i have that problem with my crt tv and i asked my electronics teacher, he's got 50yrs of electronics experience, and thats what he said

2008-02-13 13:14:14

#9

OrangeHound: Busy doing highfalutin adminy stuff ...; +1,335|6928|Washington DC

smartdude992 wrote:
OrangeHound wrote:
smartdude992 wrote:
if its crt its the horizontal shift oscillator.
I'm going to have to turn in my two EE degrees ... what in the blazes is a monitor's "horizontal shift oscillator" ?????
its an internal component, i'm not entirely sure what it does, but i have that problem with my crt tv and i asked my electronics teacher, he's got 50yrs of electronics experience, and thats what he said

I think you are not relaying information correctly. I'm guessing your teacher said "Horizontal Sweep", and that is generated by the flyback transformer.

2008-02-13 13:15:49

#10

Bertster7: Confused Pothead; +1,101|6860|SE London

OrangeHound wrote:
smartdude992 wrote:
if its crt its the horizontal shift oscillator.
I'm going to have to turn in my two EE degrees ... what in the blazes is a monitor's "horizontal shift oscillator" ?????

You have 2 EE degrees and you don't know, or can't guess, that??!?!?

I only have the 1 EE based degree (CSE), but I can guess that would be the circuit to generate the clock pulse (that's what oscillators always do) for control of the period of the electron beams horizontal shift (or the horizontal scan rate, usually around the 100KHz range). C'mon, that's pretty obvious.

2008-02-13 13:17:49

#11

smartdude992: Keep your head down, smart's got a gun; +30|6210|Georgia, US of A

OrangeHound wrote:
smartdude992 wrote:
OrangeHound wrote:

I'm going to have to turn in my two EE degrees ... what in the blazes is a monitor's "horizontal shift oscillator" ?????
its an internal component, i'm not entirely sure what it does, but i have that problem with my crt tv and i asked my electronics teacher, he's got 50yrs of electronics experience, and thats what he said
I think you are not relaying information correctly. I'm guessing your teacher said "Horizontal Sweep", and that is generated by the flyback transformer.

i'm really not sure, you probably know a lot better than i do

2008-02-13 13:21:22

#12

Phatmatt: Vroom Vroom; +298|6468|Canada

FloppY_ wrote:
My TV does that........ I hate it

mine too, I just give it a tap and usually it goes away. it's annoying as hell.
plus it's less than a year old..

They made things better back then.

Last edited by Phatmatt (2008-02-13 13:22:02)

BF2S Forums My monitor whistles.

Lucien wrote:

Lucien wrote:

OrangeHound wrote:

Lucien wrote:

smartdude992 wrote:

OrangeHound wrote:

smartdude992 wrote:

smartdude992 wrote:

OrangeHound wrote:

smartdude992 wrote:

OrangeHound wrote:

smartdude992 wrote:

OrangeHound wrote:

smartdude992 wrote:

OrangeHound wrote:

FloppY_ wrote:

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