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I have a Sony KDS R50XBR1 WEGA 50 inch tv. The other day it shut itself off while I was watching it. Now I can't get it to turn on and stay on. The stand-by light will blink green 17 times and then the TV turns on for 1/2 a second then the stand-by light will blink red 4 times pause and then blink red 4 times pause etc. When it turns on for the half second I do get an image on the TV. Any idea what it could be? Oh and it did this a few months ago as well but that time I unplugged the TV for an hour and then it worked fine. This time that is not working.

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  • ckabeth Sep 07, 2009

    Thank you for your reply. I took the back off and checked both fans. I didn't see anything preventing them from moving and the connections were securely fastened. I suppose the next step would be to replace the fan. Is there a way to tell which fan it would be or should I just replace them both? Are these parts that I will be able to find in an electronic store?

  • ckabeth Oct 27, 2009

    changed the fan and works like new now! thank you

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4 times LED blink error code shows that one of Fan is stopped as fans running is monitored by system control in TV.
Need to take off back cover of TV to inspect fans.
Please check fans connectors are attached securely or fan caught any wire in its blades that can stop it.
Fan can be stop if it does not get power volts.
Thanks.

Posted on Sep 06, 2009

  • 1 more comment 
  • Shahid Electronics
    Shahid Electronics Sep 07, 2009

    Thank you for your reply. I took the back off and checked both fans. I
    didn't see anything preventing them from moving and the connections
    were securely fastened. I suppose the next step would be to replace the
    fan. Is there a way to tell which fan it would be or should I just
    replace them both? Are these parts that I will be able to find in an
    electronic store?
    ==================================================================

    Fan rotation is observed and of course system control will give enough time to fan to spin (approx 3 seconds)
    You can observe what fan is not running by that way, Unplug from AC supply for couple of minutes, replug back in and turn ON TV while observing fans.
    Supply volts also need to be checked on fans connectors as if volts are missing fan wont be spin.
    If volts are available to fans, yet not spinning then need to be replaced.
    I do not think all fans can down at same time.
    Thanks.


  • Shahid Electronics
    Shahid Electronics Sep 07, 2009

    Once you located defective fan, let me know its location to provide you part number info and yes, Sony TV fans are available in parts shop.


  • Shahid Electronics
    Shahid Electronics Oct 27, 2009

    Great!

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