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CRT Whining a bit

post #1 of 10
Thread Starter 
My crt of a few years a View sonic E90.
http://www.retrevo.com/s/Viewsonic-E...64dj083/t/1-2/
Is whining a bit.
Its a faint whine on dark screens like OCN but when i pop open google or anything bright it go a little bit louder.
Is there something wrong? Do i have to get a new monitor?
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post #2 of 10
Whatever you do, don't let it get it's way.
post #3 of 10
It could be the Flyback transformer or one of the horizontal/vertical oscillators. Either way, it may fail soon. There are also people who can hear certain frequencies better than others so unless this just started I wouldn't worry about it. If it is a new sound, get ready to replace your CRT.
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post #4 of 10
Thread Starter 
O.O ahhhhhhh!
Well i guess ill wait for it to go out. But it stopped whining.... Well this is a odd build i have hear.
And Always you made me laugh. Good job.
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250gb something or other Windows Xp sp3 Viewsonic 19" CRT Microsoft 
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post #5 of 10
A minor adjustment to scan rate often changes the high pitch frequency, sometimes to an inaudible level. In either nVidia control panel or powerstrip simply add/remove from the sync width to make the minor changes.
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post #6 of 10
Thread Starter 
Now do what ?

It happened when i turned the monitor on, and now it stopped.
Edited by 5starGeneral Alphasnake - 2/26/11 at 10:45am
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Athlon 64 x2 4200 2.2ghz C51G+MCP51 8600gt 740/465/1620 3326MB RAM DDR 129mhz 
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250gb something or other Windows Xp sp3 Viewsonic 19" CRT Microsoft 
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300w something or other Dell mouse 
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250gb something or other Windows Xp sp3 Viewsonic 19" CRT Microsoft 
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post #7 of 10
My Employer is Authorized Viewsonic service (amongst other things) and I have been servicing display devices for over 20 years.

Most of the time when a monitor starts squealing it's a ringing coil. There are a few coils in CRT monitors that can start ringing. You can get these noises from the line coil (filter), step down transformer, linearity coil in the horizontal circuit, the coil in the B+ regulation circuit and the Flyback Transformer.

Sometimes just resoldering these parts will stop the noise. Sometimes you have to replace the part. Sometimes adding a touch of hot melt glue on the part to the circuit board will stop it from vibrating. Sometimes just cleaning out the monitor of all the dust will get it working by lowering the temps a bit. You can also try altering your refresh rate in your driver by +- 10Hz.

Your monitor is in no danger of being damaged. This is just a ringing coil and will not damage anything except maybe your patience.

Note, there ARE other noises that can indicate a serious problem. If you're hearing a very high pitched whine or ringing it's most likely something listed above. If it's more of a buzzing noise then there may be a more serious problem.
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post #8 of 10
Thread Starter 
Its a whine. So its not gonna die. I can live with it. I live with my Sig rig.

Also, what would buzzing mean? (Can learn something)
Edited by 5starGeneral Alphasnake - 2/27/11 at 1:41am
R.I.P.
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CPUMotherboardGraphicsRAM
Athlon 64 x2 4200 2.2ghz C51G+MCP51 8600gt 740/465/1620 3326MB RAM DDR 129mhz 
Hard DriveOSMonitorKeyboard
250gb something or other Windows Xp sp3 Viewsonic 19" CRT Microsoft 
PowerMouse
300w something or other Dell mouse 
  hide details  
Reply
R.I.P.
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon 64 x2 4200 2.2ghz C51G+MCP51 8600gt 740/465/1620 3326MB RAM DDR 129mhz 
Hard DriveOSMonitorKeyboard
250gb something or other Windows Xp sp3 Viewsonic 19" CRT Microsoft 
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300w something or other Dell mouse 
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post #9 of 10
Slap it around and show it who's boss.
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post #10 of 10
Quote:
Originally Posted by 5starGeneral Alphasnake View Post
Its a whine. So its not gonna die. I can live with it. I live with my Sig rig.

Also, what would buzzing mean? (Can learn something)
Buzzing could mean arcing happening on the board or inside the tube or even in the flyback transformer. Any bad connections in circuits can cause arcing, and worn or damaged insulation varnish in the windings of the flyback transformer can also cause arcing. The high voltage anode in the tube and the electron guns in the neck of the tube can also short which could manifest as a buzzing noise, or snapping noise (usually snapping noises only last for a second before the monitor dies completely).

If it's gone now I wouldn't worry too much though.
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Nukeyork
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