Buzzing from power supply Samsung LED (pics) - AVS Forum
Forum Jump: 
 
Thread Tools
Old 08-05-2014, 05:20 PM - Thread Starter
Newbie
 
Join Date: Aug 2014
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 0
Buzzing from power supply Samsung LED (pics)

Hello,
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.
Attached Thumbnails
Click image for larger version

Name:	photo 2.jpg
Views:	22
Size:	191.3 KB
ID:	198049   Click image for larger version

Name:	photo 1.jpg
Views:	26
Size:	207.9 KB
ID:	198057  
keepinitoldskool is offline  
 

Tags
buzz , power , Samsung , supply , un55d6000sf
Thread Tools


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off