HLN467WX/XAA TV works fine however a noise suddenly appeard and wont go away, sort of a Buzzing Sound, can you help. Thanks, Lou.

Check out your power supply voltages.

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

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

Hi!
I think I had this kind of issue before on my computer. I sorted it out. First I check the motherboard and wiring inside if there are any wires touching the fans because of the buzzing sound. Found nothing. I noticed that the buzzing sound came from my hard drive. It seems that it's not getting enough power that's why its struggling to spin. What I did was I changed my power supply to higher wattage and everything was fine after that. You can give it a try though. If it still the same issue, you might as well try a different hard drive.

Regards!

check the lamp, that'd be the first thing to check.

Your Color Wheel needs to be replaced!
Call Mats Electronics for Parts and supplies
1-800-628-1118

It is likely the color wheel motor making noise

Check this link
http://www.jangro.com/electronics/samsung-dlp-replace-color-wheel/

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This TV is horrible. I have the same one and not even a year replaced the light bulb twice. Very disappointing for a Samsung.

TRY SWITCHING OFF RATHER THAN LEAVING ON STANDBY ANY OTHER EQUIPMENT CONNECTED TO THE TV

fan or color wheell