My hln5065w started making a loud noise like a fan noise upon startup recently. The color is fine (I've read the color wheel w/loud noise problems). It has been doing this for the past week, previously I have had a complete replacement of the light engine and after the not so good local repairmen got that back together it worked but all of the inputs except one failed, but that has been the case for years as I was told that a new board was $600 plus labor to replace.

See attached photo: you have a bad color wheel----it turns at about 12,000 rpm and bearings in the tiny motor go bad.

High pitched or fan like sound is classic symptom.

The wheel is available on the internet and You Tube has video instructions by model number for replacing it---Google the model number for the part number for your set to locate the part and instructions.

This for most people is a do it yourself job---takes like 45 minutes start to finish.

If color wheel slows too much set will shut down as its speed is monitored and the wheel can even shatter causing shutdown of the set.

Steve

The tv is making loud noises like humming or motor noises and tv have strange colors flashes or black and white backgrond flashes.The tv Colors wheel it is dying and not spinning the right speed of it RMP speed any more.The tv colors wheel must have be replaced to solved this problems.Have no mechanicals skills hire a tv tech. to change the tv colors wheel because u have to take out alot of mechanical parts out before u can come to the tv colors wheel itself to replace it.

100% this tv problems it is the tv colors wheel it is defective require replacing.The loud tv buzzing noises sounds are the sounds came from the tv wharp colors wheel it is spinning out control wildly and off of it motor axis and by hitting it to the wall of it steel box holding it.The tv distorted colors pictures are came from out of the reflections of a badly worn out of the tv colors wheel.

Problem is the Color Wheel, Located behind the Lamp .
You will need a Flash Light and Pull Lamp out ,Look inside and you will see Color Wheel.
Color Wheel PN# BP96-00250A Price $82.66
Encompass Parts Distribution 1-800-638-3328
Samsung Parts 1-800-627-4368

This tv have a colors wheel.The colors wheel is dead.The colors wheel is dying,going to be dead.The tv make loud humming,noisy sounds like a loud fans or motors noises.Also the tv colors flashes black&white or multiple colors pictures and scrambled.Colors wheel replacement is difficult,never done tv repair before.Hire a tv Tech. to replaced the tv colors wheel.

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.

Sounds like maybe your color wheel. It probably needs replacement. Look here. http://www.jangro.com/electronics/samsung-dlp-replace-color-wheel/

With the back off of the set it will shut off. There is a lever it engages to prevent the set being operated with the back off.

The color Wheel will cause a fan like or high pitched grinding noise. I can tell you where to buy it and also there are on the internet places with written and VIDEO instructions for the replacement in most of these sets.

Put the back on and see if the set again works and still has the noise.

If this helped you, rate this as I do this here for FREE.

SD TECH

The color wheel or fan can cause that. However if its a very loud soind its most likely the color wheel as it spins very fast.

check the color wheel in front of the lamp