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I have a Samsung flat screen lcd tv LN-T405ha. When I turn the power on it has started to keep clicking on/off several times. It continues to get longer each time before it will turn on. What could it be

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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dsacco86
  • 1077 Answers

SOURCE: Samsung LN-T4032H LCD

Most likely the TV has a power supply related problem. The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
I can't say it's 100% the problem because I can't actually look at the tv over the internet.

If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists. Usually, cost under $20.

I hope I shed some light on the subject for you.

Posted on Jun 29, 2009

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  • 7 Answers

SOURCE: Samsung LN-5265F LCD TV is very slow to come on.

its the elecrolytic capaitors on the power supply.
goto www.earthinfo.org/samsung-tv-makes-a-strange-clicking-sound
it shows how to fix it yourself for only 'peanuts'

Posted on Aug 05, 2009

  • 78 Answers

SOURCE: Samsung LN-T5265 LCD tv will not power up.

Try a different power point and a different power lead. We hire out Samsung LCD's and occasionally find that it's the lead or something else in your power circuit is causing the problem. Otherwise the other issue we've run into is a faulty power supply in the TV itself in which case hopefully it's still under warranty (I believe it has 3 years)

Posted on Sep 15, 2009

  • 1 Answer

SOURCE: Samsung LN-T4661F - When I turn the T.V. on, it

dh14.... what did you exactly tell samsung? I just tried calling and told them about the capacitors and they just gave me phone numbers from local tv repair shops and supposibly is not a "known issue"... thanks in advance.

Posted on Feb 27, 2010

  • 117 Answers

SOURCE: I have a Samsung LCD model#LN-T5265F and my tv is

common fault the power supply needs repaired

Posted on Apr 18, 2010

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My Samsung 46 inch LN550j1fxza LCD TV turns on and plays sometime but then shuts back off with no sound, black screen and won't come back on until it's off for a while. thank you


Samsung 46" LCD TV (LNT4665F) turns off and on over again - Forums ...

www.cnet.com > Forums > Samsung

CNETJun 11, 2015 - About 3-4 months ago, my TV would start turning off and on a few times at startup ... Samsung 46" LCD TV (LNT4665F) turns off and on over again ...chirp would sound and then it would power off and the cycle would continue. ... After 5-10 minutes of this without being able to shut it off completely, I pulled out the power cord. Samsung UN55B8500 - turns off by itself! - Forums - CNET
Nov 16, 2011
Samsung LN46A650 green/pink static picture and power resets ...
Jul 27, 2010
More results from www.cnet.com

How to fix clicking samsung tv (wont turn on) - Instructables

www.instructables.com/.../How-to-fix-clicking-samsung-tv-...

Instructablesif your looking at this then you probably have a samsung tv thats broken. This instructable is for how to fix one of the most common faults in samsung LCD tvs. .....its fine and never goes off until it is shut off but will not turn on immediately . ... The issue with my LN46A650A1F just started happening last weekend (12/7/2014).

SAMSUNG TV REPAIR- TURNS OFF RANDOMLY - YouTube

? 9:24
https://www.youtube.com/watch?v=7Rj22VNhKXg
Jun 25, 2012 - Uploaded by Tampatec
EASY HOW TO FIX SAMSUNG TV- TURNS OFF RANDOMLY Clicking ON AND OFF Repairing Samsung LCD No power problem LN ... LCD No power problem LN MODEL LN46B500 - buy the cap kit for your tv model ...

Jan 05, 2016 | Samsung Televison & Video

3 Answers

I have a Samsung LCD (LN-T5271F) about 2 years old and lately when I turn it on, it clicks on and off several times before it actually stays and the tv comes onI have a Samsung LCD (LN-T5271F) about 2...


Call Samung customer service, they are doing this repair for free. I had the same problem at 11 months, they replaced the power supply board under warranty. At 2 years I had the exact same problem again and this time they replaced 2 - 50 cent capacitors on the power supply board. It took the repair man less than an hour and he had the replacement capacitors on hand. The original board and the replacement board they gave me had capacitors that were faulty. Hopefully these new capacitors will last. I have to say that I was thinking (no more samsung products for me) but I got excellent customer service and they admit that they had a faulty product and they accepted responsibility.

Apr 26, 2010 | Samsung LN-T5271F 52 in. LCD Television

1 Answer

TV takes long time to turn on.


most likely the power supply board is starting to fail, soon it will not turn on at all.call 1-800-samsung for nearest service center.

Dec 29, 2009 | Samsung LN-T4665F 46 in. LCD Television

1 Answer

When I try to turn on my Samsung LN-T4042H LCD HDTV it is now constantly clicking in a continuous loop and will not immediately turn on. It started out small- a few clicks yesterday morning. Today it...


There is a problem with the power supply in your TV. The regulator switch is causing teh clicking sound you hear. In order to fix it, you will need to replace the power supply. This is done by taking off the back cover of the TV, locating the power supply which is usually a yellow board that will have many high voltage capicators on it and replacing it with a new one.

Nov 06, 2009 | Samsung LN-T4042H 40 in. LCD HDTV

1 Answer

Samsung LCD TV slow to start


Dont have a solution, my samsung 46 inch is doing same thing. Have you found a solution?

Oct 05, 2009 | Samsung LNT5265F 52 in. LCD HDTV

3 Answers

Power won't come on- constant clicking loop instead


My T.V. did the same thing and it was due to bad capacitors on the power supply board. the tops of the capacitors were bulged, once replaced it worked fine. It involves sodering in new capacitors total cost $30. that includes buying the sodering tool. Keep looking around on line someone had pictures step by step how to do it.

Mar 26, 2009 | Samsung LN-T4042H 40 in. LCD HDTV

1 Answer

Clicks on and off several times before staying on


The power supply will sense if the set is 'drawing' too much current and switch itself off. This could be the case here. The power supply board may eventually go completely bad.

Feb 23, 2009 | Samsung LN-T4042H 40 in. LCD HDTV

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