Question about Samsung LN-S4692D 46 in. LCD HDTV
I have a Samsung LCD LNR408DX/XAA that is approaching two years old in June. Recently when trying to power up the TV it would fail and not turn on. The TV would make a clicking sound as if it were about to turn on but would not turn on. On some occasions I could hit the power button several times, unplug the power cord and it would then turn on. Now however the TV will not power on and will continue to make a clicking sound about every minute or so. The red light that is on the power button on the TV will flash 4 times, I have heard that you are able to tell what is wrong with the TV by how many times this light flashes? Any suggestions, I am trying to avoid a costly repair? Thanks
I had the same problem with a 52" Samsung LCD. I found 2 electrolytic
caps with bulging tops on the power supply board. (see pic). I looked
to be the 5v section but I'm not sure. I got replacement at Fry's for
$1.90 each. All is well!
Posted on Jul 21, 2009
I followed the suggestion of checking the capacitors on the power board. They were shot so I tried taking the power board to get them replaced. It was really hard to get anyone to help me. Most of the repair shops stated they would not just fix the board and they would only repair it if the whole TV was brought in. One of the smaller shops did help me out. He stated that this is not a Samsung problem, this is a LCD problem. My Samsung was only the second Samsung he has fixed in 4 months. He stated he has worked on many other brands daily with the same problem. This made me feel better after hearing all the problems and complaints on this thread. The shop actually replaced all seven capacitors with 35v ones. He states blown capacitors won't be an issue in the future. He explained that during some busy screen play, especially with HD gaming, these capacitors end up running 12-14v through them and that's what destroys the 10v capacitors. It's like putting a gallon and a half of water in a one gallon container and something has to give. Sorry, I like to educate and explain things so am a little long winded. In Short: If you are experiencing clicking in your Samsung, Don't throw it out, Don't curse it, and call around to see who will not just replace the parts but potentially upgrade board to prevent future visits.
Posted on Aug 21, 2009
I fixed this problem myself for £10 when samsung clicks and wont turn on its a fault with the power board. To fix this i removed the back pannel(16 screws) and inside is the power board with 6 screws holdining it in. In one of the top corners you can see 6 small ressisters 4 of which were blown on mine due to high tv usage and being left on stand by all the time. I took the board along to my local electronics shop and asked them to replace the blown one put it back together and has worked fine ever since.
Posted on Jan 17, 2009
When I turn on my TV, I get sound, but no picture, any ideas as to what is happening here?
Posted on Jul 08, 2009
Same thing happened to me. The screws holding the hdmi input to the back of the tv weren't there - it came from the factory that way. Samsung didn't care. I found a replacement board on eBay.
Posted on Aug 14, 2008
Anyone know where I can get a replacement board for the 408DX/XAA LCD TV ?. The HDMI port came loose and can not be soldered back on. Thanks in advance for your help!
Posted on Apr 29, 2008
Power supply is bad
Posted on Mar 16, 2008
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