Question about Samsung LN-S4041D 40 in. LCD HDTV
Intermitting snow while watching 1 sec then back to picture
Intermitant snow means your tv is not getting signal continuously. Please check the input signal connection and source to your tv.
Posted on Dec 29, 2013
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Posted on Jan 02, 2017
SOURCE: Have Model Code LNT4061FX/XAA
Three capacitors on the motherboard are bad. They cost about 2 dollars each. If you are handy, you can take the tv apart and replace them. It took me about 30 minutes. Unplug the tv. Lay it on a large table so the stand can hang off without tilting the tv with the back of the tv facing up. take all the Phillips screws off the back cover. Take the back cover off. There is a grey cover about the size of 8x11 inches on the left middle area held on by about 6 to 8 phillips screws. Take it off. Unplug the motherboard, there are about 5 different plugs. Unscrew it and take it out. There are 3 somewhat swelled 1000mf 10v capacitors in the upper area of the motherboard. Replace them with 1000mf 16v capacitors, soldering required. Make sure you install them with the ground in the proper hole. Put it all back together and you are fixed for less than ten dollars. Samsung should be doing this for free. It really makes me mad that they can put out such an expensive product and not accept responsibility for a potential fire hazard. I will make sure anyone who wants my opinion about an electrical product knows how bad samsung is. Good luck.
Posted on Sep 04, 2010
What ever you get make sure they are 105c rating, AND LOW ESR which is must for switching power supply, if they do not know what ESR is, do not even buy the parts from them, also high ripple current rating and life rating in hour at 105c.
I use PANASONIC FM/FC series from DIGIKEY.
Please see my basic troubleshooting guide here:
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com just make sure to use caps with low ESR, 105c rating such as PANASONIC FM or FC series.
Please post back what you find.
Posted on Dec 02, 2010
If you shine a flashlight onto the screen, can you see a very faint picture. If yes, then your lcd panel is not lighting up. Replace the inverters or the panel.
first I would check the power supply for faulty caps, replace if neccessary.
Posted on Feb 23, 2011
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