Question about Samsung 400CXn 40in Pro Display wTuner OPEN BOX LCD TV
PROBLEM IS THE SAME AS THE CAPACITATOR ISSUE WITHE THE SAMSUNG TV'S. THERE IS A CLICKING SOUND AND NOW THE THING HAS SOUND HOWEVER NO PICTURE, COMPLETELY BLACK
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Posted on Jan 02, 2017
I had the same problem and I replaced the t-con board. My t.v. is fixed!!!! I just couldn't see spending another 700.00 dollars for a repair shop to fix it. The t-con board is located at the top of the t.v. once you remove the back cover. Be very careful removing the two plugs at the top of the board which was easy once I figured out how the clips worked. there is a black lever like connection which flips up, then grip with your fingers the tab and slide the tape like wires straight out. The bottom plug is very simple. Also to expose the t-con board you will have to remove a heat shield cover. Once removed there is foil looking tape that needs to be peeled back to expose the board. The board is very sensitive to static electricity so if you have a grounding strap that you can strap to your wrist and ground to the frame while performing your repair. Its best to lay the t.v. face down on the kitchen table with a blanket to protect the screen. Good luck!
Posted on Sep 07, 2008
there is a soloenoid type switch that fires the TV up this has failoed. its like a neon or fluoresecent tube that has a faulty starter switch light tries and tries but never quite makes it when it does get going it has that purple smear in the tube. that is the simple explanation for your problem. part is about $60 labor is unkinown as i am not in USA but looking at some of the rip off charges I am glad i dont have the bill
Posted on Aug 20, 2009
SOURCE: Samsung 4061F 40" LCD TV
To all who are having power supply issues: Samsung is now acknowledging a problem with faulty capacitors. I called 1 800 726-7864 and they said they would repair certain out-of-warranty TVs if the problem is related to the capacitors. I just called and they are sending a service rep out to diagnose the problem.
Posted on Feb 22, 2010
Tips for a great answer:
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Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
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