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Sony KDL40V2000 LCD TV not working. When power is turned on and the TV is in stand-by mode, a 'double-clicking' can be heard approximately every 13 seconds. When the TV is turned on using the remote-control, a fleeting programme image will appear for literally less than a second before the TV returns to standby mode with ensuing double-clicking noise. This step will repeat itself 3 times before the TV returns to a standby mode permanently, the red lcd flashing 9 times consecutively.

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There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom need to be replaced.
If you repeatedly turn it on, eventually it'll probably stay on, but every time you turn it off, the TV will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for 5 mins, then try.

If you are handy with a soldering iron and can identify the power supply and inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are positive it's only doing ripple filtering, and even then, you should go OVER, not under the uF rating).

Most of the caps that go are 10V 1000uF or 3300uF.

I found some great videos of the procedure (for many Samsungs with the same issue) on youtube.

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

http://www.youtube.com/watch?v=8l0AUj8QUkg&NR=1&feature=fvwp

http://www.youtube.com/watch?v=Y7b_nTaZYcU&feature=related

As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors.
The parts are cheap, and skill required is minimal.

Posted on Mar 25, 2011

  • 5 more comments 
  • Todd Hill
    Todd Hill Mar 26, 2011

    there is no 500mic cap

  • Norman Skinner
    Norman Skinner Mar 26, 2011

    there very well may not be in this unit, but they do exist. - my point was that you can go above voltage but should stay on rating.

  • Todd Hill
    Todd Hill Mar 26, 2011

    where is the parts house where i can buy a 500 mic cap? please give me the website and you can replace a 680 mic with a 1000 will work fine

  • Norman Skinner
    Norman Skinner Mar 27, 2011

    google 500 uf electrolytic, there's a ton of places you can buy them, and no you can't replace a 680 with a 1000 unless it's basically only doing ripple filtering. Capacitors have specific values for a reason, and anything frequency sensitive like ...oh...say...the switching mode power supply or inverter board - require the right value capacitor. Do some research before you start slamming the REAL professionals on this site! Thank you.

  • Todd Hill
    Todd Hill Mar 27, 2011

    yes ripple filtering thats what a cap does for pure dc switch mode witch caps? and what is freq sens. are you talking capacitive reactince 2pie f/l

  • Norman Skinner
    Norman Skinner Mar 27, 2011

    switching mode power supplies aren't pure DC, they are pulse width modulated outputs that aren't ripple filtered until the output.

  • Norman Skinner
    Norman Skinner Mar 27, 2011

    http://capacitor.tedss.com/500uF
    Oh lookie here...500uF caps from 10V all the way to 450V - and this is just ONE supplier !

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