My samsung 42 inch hdtv is making a buzzing noise

might also be the color wheel. These can make some really loud & strange noises. For this model# HLN567W Color wheel PART NUMBER: BP96-00250A
Best Buy: $85.20

that's a failure about to happen in your video control circuit board..you feeling like you want to dig into this yourself, or does this have a warranty

Hello,

This might be your colorwheel or ballast. If its a sound like a whirling metal/glass sound then its most likely a colorwheel malfunction. If the sound is more electrical like a buzzing sound it can be the ballast. Before all this you want to make sure you purchased an original Philips brand lamp because those knocks offs can damage your TV!!

Hoep this helps!

Yes ,you can fix it yourself just be sure that when you start you tape and Label everything you disconnect so you reconnect back correctly. Encompass Parts Distribtion will List Parts/Prices at there website.1-800-638-3328
Problem is Color Wheel! PN# BP96-00674A
Samsung Parts 1-800-627-4368

Most likely a cooling fan completly full of dust.

It the colors wheel,the fan don't make that much loud of a noise.When the colors wheel spins off it axis it make very loud squizzing and buzzing noises.

Does your TV make a "whining, whirling, clicking, or humming noise?" If the TV have the infamous blinking lights problem , it's most likely a problem with your color wheel. The Samsung BP96-00674A color wheels spin anywhere from 6,000 to 15,000 revolutions per minute (RPM’s)--It is one of the few consumable parts in your Samsung TV. The average life expectancy from our data logging shows the Samsung color wheels are fairly reliable with a MEAN average of 5-8 years. Its basically in charge of creating the colors .God bless you here;s how to take it out and replace it: http://guides.fixyourdlp.com/samsung/bp96-01579a.php

sounds like the color wheel as it can almost sound like a whirling siren or a loud screeching sound

Sounds like your color wheel is failing they make a loud sqeauling noise when they begin to fail.Run you somewhere around $300-400 to have a tech repair it.

http://the-tv-dude.blogspot.com

I HAVE A RCA 50 HDTV DLP MODEL #D50LPW134 IT MAKE A BUZZING SOUND AND NO PICTURE i CHANGE THE BULB AND STILL NOT WORKING.

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Ken