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post #1 of 2 Old 08-05-2014, 04:20 PM - Thread Starter
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Buzzing from power supply Samsung LED (pics)

My grandmother has a Samsung LED TV model un55d6000sf
The TV is about 2 years old or less.

I noticed a loud buzzing coming from the back, like something was vibrating against the rear cover which could be felt when touched.
I took the rear off and powered it on. The buzzing is a lot quieter with the rear cover off but it's still there. Its very random, increasing and decreasing in intensity and frequency.

I used a straw and isolated the noise to the white component in the bottom center of the power supply board.
The part is labeled:
2W 105K | 11
SIC 460S | 31

I'm not sure what it is, I'm guessing its some kind of resistor (2 watt 105k ohm?)
There is an image attached.

Anyway... the noise eminates from the base of this part and when the rear cover is installed. I believe there is some kind of electromagnetic feedback causing the metal rear cover to vibrate. Is this a known problem? Can I replace this part or should I try and replace the entire power supply board? Or could something else be the cause?

The TV works fine otherwise... I'd like to fix it before it gets worse.
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keepinitoldskool is offline  
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post #2 of 2 Old 10-30-2015, 11:08 AM
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hi there, new member here, i wanted to bump this thread because i have the exact same problem with the exact same part... i dont know what the parts on the power supply unit are called but wanted to see if this was ever resolved or if anybody could add any info to this problem... thanks
nateb26 is offline  
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buzz , power , Samsung , supply , un55d6000sf

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