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Sunil Patluwala Posted on Aug 22, 2015

Samsung led tv UA40F6400.. PROBLEM IS BACKLIGHT IS BLINKING N ALSO STBY LED IS BLINKING.. PLEASE HELP

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Moutasim Waheed

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  • Posted on Jan 15, 2016
Moutasim Waheed
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Almost same with my TV, logo comes then restart.. loop. Can anyone tell which capacitor need to be replaced?
Please email at [email protected]

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Anonymous

  • 1 Answer
  • Posted on May 28, 2008

SOURCE: Red blinking led

My 42" Philips LCD did the same red blinking sequence last night. All was seemingly fine after unplugging it for a bit. An online search, though, has me worried that this may be the start of (potentially fatal) power supply issues. Anyone have a clue what that sequence means?

I've got one week left on my 1yr waranty, so I'm a bit concerned! :(

Thanks!

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ginko

Ginko

  • 19396 Answers
  • Posted on Mar 15, 2009

SOURCE: Turned off by itself, blinking red led at front

The clicking sound is the internal protection switch that kicked in because a fault had been detected.

First ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem on dvd with no receiver box connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the Monitor goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic chargesaccumulating on capacitors, or because of a wrong voltage read by themain chip on your monitor controller board. this started the protectioncircuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occurr are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing statebecause of the video cable.

Try moving the video cable, and if the cable is not built in, then also try a replacement cable.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

SHAN BAILEY

  • 67 Answers
  • Posted on Jul 25, 2009

SOURCE: 42PF7220A/37 Blinking red led (7 times)

sounds like your tv in shut down mode why lamp needs 2 be replaced nominal cost 120 200$

Anonymous

  • 51 Answers
  • Posted on Nov 28, 2010

SOURCE: my samsung 55" 3d led 8000 series tv dont seems to

You need a 3D source.

Anonymous

  • 91 Answers
  • Posted on Oct 10, 2011

SOURCE: Download samsung 46" LED TV Manual

Hi,
Please get it at these links :
www.samsung.com/ie/support/detail/supportPrdDetail.do?menu=SP01&prd_ia_cd=&prd_mdl_cd=&prd_mdl_name=LE46B650T2W
www.pdf-manual.com/user-guide-instruction-owner-manual-samsung-le46b650-14516.html
Regards

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