Question about Samsung LN-S4051D 40 in. LCD Television

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SAMSUNG 40" LCD LE40M86BDX CLICKING BUT NOT SWITCHING ON

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You may want to repair or replace board -

Faulty parts on PS board , bad press for Samsung.

When checking the capacitors, If they are slightly rounded on the top where the X is, the cap is defective.

Because the Samsung LNS4051D would not turn on and the power
LED would blink 4 times and the relay would click and this
would repeat again and again. I replaced power supply board
parts CM806, 811, 812 & 817, all 1000 uf 10v capacitors,
three had their tops bulged up slightly that I missed on
initial visual inspection. After seeing the reports of
problems with these caps on
http://www.fixya.com/support/t1336881-will_not_turn_or_off ,
I replaced them with Radio Shack part 272-1032, 1000 uf, 35v.
They are slightly bigger, but fit OK. TV is working fine now.
Cost was 4 x $1.59 = $6.36 plus the time. I saved between
$100 to 300 in the process of either replacing the board or
getting the unit serviced. If you are not comfortable
replacing components which means using a soldering iron, you
can replace the power circuit board, available from
www.Samsung.PartStore.com.

Some UTube showing the problem and fix -

http://www.youtube.com/watch?v=tK7zFBBU6p4&feature=related
http://www.youtube.com/watch?v=Mm51C_RDIZE&feature=related
http://www.youtube.com/watch?v=BNHHrgX_6cs&NR=1

Posted on May 27, 2010

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  • Samsung Expert
  • 113 Answers

Hi,
your lcd ip board (power board) capacitor had already exhusted.
got to replace the ip board

Posted on May 10, 2010

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1 Answer

Samsung Smart TV lights up but when i connect mainboard it goes into standby and starts clicking and standby light starts blinking in 2s and when i checked voltage its like its switching on and off.?


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

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Hello - very angry had my 52inch Samsung TV for 16months and just keeps clicking and switching off, very angry Customer purchased via mail service which means you pay alot more £1699 what can I do...


The only thing you can do is to file the complaint with SAMSUNG and contact them. I will doubt it very much if they will do any repair for free, but that how TV companies are running the business these days, poor support that is what you will get.

http://www.samsung.com/us/support/

Please leave rating if it helps.

Jan 05, 2011 | Samsung LN-S4051D 40 in. LCD Television

1 Answer

Makes clicking sound without switching on


is this a samsung? if so call them. its a well known fault on samsung lcd tv's. 0330 7267864 they should fix it for free. just explain your tv just clicks away when you switch it on.

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1 Answer

Problems when switching on, keeps clicking on and off standby before coming on


Check power board for swollen capacitors and replace them. if that does not fix then remove the flat cables from the tcon board at the top. there will be no picture but if it comes right on replace the lcd panel. If it still is switching on and off replace the power board.

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My samsung 40" lcd has developed a fault, it won't switch on! it keeps clicking on and off. Have you come across this problem before?


We are experiencing the same problem with our 40" Samsung LCD that was purchased in April 2008.We have already replaced the Sattelite DISH. It appears to be a short.

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