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Getting a high pitched sound when i Turn Up the volume?


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#1 blank.black

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Posted 05 July 2010 - 06:59 PM

The laptop in this case is a Acer Aspire 5050 (bought at Walmart about 3-4 years ago).

I turn the volume up and when i get close to about half way on the volume bar, i start hearing this high pitched whistle-like sound which gets louder the more you turn it up. The sound is continuous so I am not able to turn up the volume up higher than 50% or so which is not loud enough.

So what is the problem here and how can I fix this? Please Help...

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#2 MrBruce1959

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Posted 07 July 2010 - 02:20 PM

The whistle is either heterodyne noise or your picking up sound from a microphone type source.

Do you have a microphone plugged in? If so try tapping on it and see if the tapping comes across the speakers.

Try taping the unit, do you hear the results through the speakers?

You may be picking up cross-talk through a poorly filtered circuit, this may be caused by poor circuit design.

Try going to your audio properties and adjusting the line-in volume to see if this noise changes in pitch.

Make sure you do not have any wires or devices close by that are connected to or in the direct location, that can be causing the white-noise issue.

Broadcast Radio stations or continuous carrier devices can cause this issue to happen, it is RF interference.

You could have the device near a televison or other device with is emitting RF interference.

Make sure the electrical wiring in the house is polorized and grounded properly.

Kind regards.

Edited by MrBruce1959, 07 July 2010 - 02:27 PM.

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#3 blank.black

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Posted 12 July 2010 - 05:19 PM

thanks for your reply MrBruce1959. the laptop has an internal microphone which i disabled and then also tried different volume settings but i still get the same sound at around 60% volume. also i have been told that this laptop was not properly handled (from what i hear im surprised it even turns on) and hence might have physical damage. do you think this could be a reason for that sound?

P.S. not sure if this has anything to do with the problem or not, but the laptop does have a huge problem of overheating. it gets so hot where you cannot have it sit on your lap at anytime.

Edited by blank.black, 12 July 2010 - 05:46 PM.


#4 blank.black

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Posted 12 July 2010 - 06:50 PM

i just tried turning it on right now and i barely got the volume up and it made that sound again but froze and i couldn't get that sound to stop so i put the lid down and it still wouldn't stop so i had to get the battery out which finally brought it to a stop. :thumbsup:

#5 MrBruce1959

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Posted 12 July 2010 - 08:15 PM

There could be internal damage, perhaps a shorted out circuit somewhere or even the cooling fan is creating a noise.

You said in your opening post that the laptop was purchased at Walmart 3-4 years ago, I take it then you are not the original owner/user of it.

If I was to offer you technical information on this laptop would you be able to make use of it?

Are you capable of making any repairs to the laptop if they were offered to you?

If you seriously do not have electronics knowledge, I would all most have to suggest you have the laptop serviced by a qualified service tech. center.

Bruce.
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#6 blank.black

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Posted 13 July 2010 - 06:47 PM

i guess then there would be nothing much i could do about it since i do not have real experience with electronics. however if there is something that i could do by just following simple instructions then please do let me know since it will help me learn as well. or else i think its best as you suggested that a specialist have a look at it. Thank you Bruce.

Edited by blank.black, 13 July 2010 - 06:48 PM.





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