Question about Sony BRAVIA KDL-40S2000 40 in. LCD HDTV

2 Answers

No sound no picture, the stand by light blinks four times

I switch off power to the unit. After a few sconds when I switch the power back on and trun on the TV the green status light comes on for about five seconds and goes on to stand by mode and starts blinking. It blinks four times in two sconds.

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  • tekeste takeye Dec 31, 2008

    Greatings Guru,

    Thank you for the information, Your diagnostic is right on. But when I bought the TV in 2006 I bought Extended warranty which is good until 2010. If I remove the cover off the TV to get access to the inverter board and the power supply.It will void my warranty.

    I know your solution will fix my problem. I am going to try to get it fixed with waranty. I paid $ 500. for the extended service contract I better get some thing out of. Thank you.

    Any of you guys with a problem like mine if the warranty is expaird use this solution.

    Thanks again Guru

    Kind regards.

    Takeye.

  • jrs2slow Jan 21, 2009

    I have the same problem and am getting the run around by the circiut city extended warranty people. So good luck.

  • redcal7 Jan 26, 2009

    I have the same TV and the same problem. We bought our TV on black Friday in 2006 from Circuit city. Our warranty now belongs to a third party too. They are claiming to "not be up and running at this time". They told us to call this # which is just a recording telling you to fax in your info., no response! What is the solution? I didn't see it. We are obviously screwed, these people are not going to honor our warranties for a company that doesn't exist anymore.  Please help!!!

  • Anonymous Jan 26, 2009

    Yes the same problem

  • bkdg100 Mar 13, 2009

    No sound no picture, the stand by light blinks four times" problem, and notify you when a new solution is offered.

    service manual and trouble shooting guide

    http://rapidshare.com/files/208591107/KD...

    http://rapidshare.com/files/208592719/E3...

  • highoptional Apr 28, 2009

    Same deal with the 4 red flashes, but I got mine from afriend so When I take off the back cover what do I do?

  • atynan27 Apr 29, 2009

    tv turns off by itself, and standby light blinks 13 times. tv was purchased 11/07.

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Check the voltage across +25 volts source also check if the horizontal transistor is good. Goodluck. http://fb.me/olybest

Posted on Nov 22, 2013

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  • Master
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If you have the above model, then the four blinks indicate a backlight failure. The back light inverter board might be defective or the voltage from the power supply (+24v) is low or missing.
Let me know if you require further assistance.

Posted on Dec 30, 2008

  • Jaime Hernandez Dec 31, 2008

    Since you have the extended warranty, I would suggest to use it instead of opening the back cover, that might void the warranty.

    Good Luck.

  • Bret Wery
    Bret Wery Dec 01, 2010

    What wire do I check for the 24 volts?

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