Question about Sony Grand WEGA KDF-42WE655 42" Rear Projection HDTV

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The fan in the tv is too loud.

When you turn on the tv you can hear the fan turn on and whir loudly. Its annoying. How do I make it softer. Can I fix it by myself?

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Thiscan happen for two min reasons.
1. Dust
2. Fan's bearing gone bad.

Easiest way is get a compressed air can and clean the fan. (You do not need to take the TV apart)

If it did not work, replace the fan. (Will not cost you more than $20)

Posted on Feb 20, 2009

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OR IF THAT DONT WORK TRY TO LOOSEN THE 4 SCREWS FOR THE FAN HOUSEING THAY MIGHT BE TO TIGHT AROUND THE BLUE RUBBER GROMMETS

Posted on Feb 25, 2009

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I have a HPDV9000 Laptop and it is making a terrible loud noice, very annoying. Starts when turned on. What can it be. Thank you.


More than likely it's one of the cooling fans. They spin at relatively high RPM and if they're damaged they can emit a loud whirring or screeching noise. If it's a clicking noise then it could be your hard drive failing.

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Yes, It is still safe but very annoying...
The source is probably the guide rollers for the drum or the belt tensioner pulley. To know for sure you will need to pull the dryer apart and turn it by hand slowly and see where the noise is coming from...

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The picture is pink, that would point more toward the color wheel, and you can see the fan through the vents in the back and you can go from there. It sounds more like the color wheel since you have a picture malfunction.

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Seems to be a noisy fan on mb4210 combo


Could very well be the fan. The motors can cause interference. There may be a solution to get rid of the noise. Some copper shielding tape may help. You could rule out it being a microphonic preamp tube by turning the amp on as normal and tapping the tubes with something non-conductive. If you hear the tapping noise coming thru the speakers while doing this to a particular tube, replace it. With power tubes, the tops of them turn white on the top when they become microphonic, along with plenty background noise.

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GE refrigs have a variable speed evaporator fan motor that is controlled by a computer board on the back of the refrig. now the noise you are hearing is most likely the fan motor ramping up and down in speed (some of my customers say it sounds like a ghost). if its a continuous ramping up and down then the speed cotroller on the board is bad and must be replaced. if its just an occasional sound then thats normal and nothing to worry over.

Btw the reason the noise stops when the door opens is because the fan shuts off when you open the door.

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2 Answers

Big Screen gets loud, mad and turns off


without a model number, i can't be much help. if this is a newer dlp or similar tv, the fan is probably going out. some newer tv's have a fan that is part of the light assembly, some have a separate fan.. the loud whirring noise is usually caused by bad bearings or the blades of the fan may have become unbalanced, either way, the fan making the noise will need replacing. the color going is usually caused by the lcd or dlp overheating and/or the lamp overheating.

if the tv is out of warranty, remove the back panel, locate the fan making the noise, and search for a replacement. if you have a model number, i can check around and see if i can find the part number for you.

hope this helps,
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2 Answers

Loud whirring. Not the fan.


The fan noise is normal on this set. The lamps are cooled via this method. Your users manual explains this issue..and it is the fan as you can see it slows down after the tv is switched off..

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