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Old 03-03-2011, 08:31 AM
 
Location: Long Island NY
465 posts, read 1,837,674 times
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Hi Everyone,

I have a 2009 Sony Vaio FW-290 Laptop. A few months ago, the laptop started making this muted high pitched sound which kinda hurts your ears. It's like having dog hearing and sometimes that goes away and it is replaced with a constant low hissing sound. When I move the screen back and forth or if I apply pressure pushing it down, sometimes the sounds stop but only for a second and comes back. My hard drive is fine and the fans are fine. I keep the laptop well vented and cleaned.

Anyone have any idea how to stop this or do I need to replace the display screen?

Thank you!!!!
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Old 03-03-2011, 08:45 AM
 
3,743 posts, read 11,510,217 times
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Does it do it when the power cord is plugged in only, or all the time?
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Old 03-03-2011, 10:58 AM
 
Location: Long Island NY
465 posts, read 1,837,674 times
Reputation: 352
All the time.
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Old 03-03-2011, 10:59 AM
 
28,673 posts, read 40,851,780 times
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Might be a dirty fan. Get some canned air and blow out the opening where the fan is. Could also be bearings (if there are any) in the fan going.
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Old 03-03-2011, 01:37 PM
 
Location: Long Island NY
465 posts, read 1,837,674 times
Reputation: 352
I did that too. Canned air the fan area and anywhere there were vents.
Still no luck.
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Old 03-03-2011, 06:23 PM
 
28,673 posts, read 40,851,780 times
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Can you see the fan through the opening? If you can try stopping it briefly (BRIEFLY!) and see if the sound stops.
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Old 03-04-2011, 03:06 PM
 
Location: Matthews, NC
14,693 posts, read 23,495,439 times
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Does the laptop have a microphone? If so, go into the Sound options in the Control Panel and try disabling it. You may be getting feedback. For that matter, even if it doesn't have a microphone try disabling the speakers and/or muting the sound just to eliminate it.
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Old 03-04-2011, 05:02 PM
 
Location: Long Island NY
465 posts, read 1,837,674 times
Reputation: 352
bs13690 - I tried what you said and that doesn't work. The sounds come from behind the laptop monitor where the word vaio is, around that area.

This hissing is constant and loud.

Very strange indeed.
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Old 03-04-2011, 05:03 PM
 
Location: Long Island NY
465 posts, read 1,837,674 times
Reputation: 352
Quote:
Originally Posted by Tek_Freek View Post
Can you see the fan through the opening? If you can try stopping it briefly (BRIEFLY!) and see if the sound stops.

I looked for the fan, didn't actually see it...however, the sound comes from behind the laptop monitor behind the words "vaio".
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Old 03-04-2011, 05:57 PM
 
Location: Long Island NY
465 posts, read 1,837,674 times
Reputation: 352
Thank you all for your help.

I was on Sony chat and they suggested I bring the laptop in for service.
I did an online search and it seems this hissing is common.
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