MY samsung ln40b550 keeps flickering from regular picture to black screen. Have tried power cycling. does on all inputs.

SOURCE: Samsung Hl-t6176S Flat Panel. Keeps cycling, no

see thi s site - I just fixed my tv using this site...lots of geeks.

http://www.badcaps.net/forum/forumdisplay.php?f=31

Bud Martin

• 11361 Answers
• Posted on Jun 22, 2010

SOURCE: flm-2632 picture fades to black.

Please see my basic troubleshooting guide:
http://s807.photobucket.com/home/budm/allalbums
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://en.wikipedia.org/wiki/Capacitor_plague

Parts: try www.shopjimmy.com or Ebay

SOURCE: I have a Samsung LN40B550.

the problem of your tv is that your power supply is already damage, try to remove the back cover of your tv but be sure to unplug it then try to follow the ac cord that is connected on your tv there you will see the power supply, then observed if their is a swollen capacitors or leaky capacitors it is easy to distinguish you will see an oil mark or wet mark in the bottom of the capacitor try to replace it but be sure to remember the proper place of the capcitor because it has a polarity.

The Knight

• 76851 Answers
• Posted on Sep 04, 2011

SOURCE: Samsung LCD TV LA40S81.... Turn on

Hello
It is due to the power regulator section of your TV. If DC voltage come to T'con board and other circuit board won't have enogh regulated and smoothed current this type of fault will occur. Open your Tv and check for any bulged capacitors on the mains power regulator board. If there, repalce it with same type and capacity. I hereby attaches a picture, of an other set's power supply board with bulged capacitors to give you an idea about how a damaged and bulged capacitor will look like. Check this, If you want anymore assistance from me, feel free to get me by Fixya.

Note the top of the red arrow marked capacitors. They are damaged. A ggod one will look like one you can see on the top right with flat top surface.