Question about Sony Grand WEGA KF50WE610 50" Rear Projection HDTV-Ready Television

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Sony Grand WEGA KF-50WE610 LED blinks 4 times

My Sony Grand WEGA KF-50WE610 LED blinks 4 times. After turning it, on you can hear the audio for like 1 second but no picture ever comes on and the LED blinks 4 times.

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  • silverstonei May 21, 2009

    When I tried to turn on the TV, I could hear the fan start and after like 2 seconds it died off and the LED started its 4 blinks secuence in red.

  • silverstonei May 21, 2009

    Thanks for your fast reply.

    Do you have the part number for the temperature sensor?

  • silverstonei May 28, 2009

    The part arrived from the Part Store last night. The board has an audio/video jacks. Does this board replace the board located at the front of the TV? How do I replace it? Would I have to take the TVs back cover off or can it be replaced thru the front of the TV?

  • silverstonei May 29, 2009

    Part installed and continues with the same problem. Just trashed $90 plus a couple of hours of my time.

  • Anonymous Mar 30, 2014

    my lamp won't come on and was wondering if i should replace the lamp ballast or even mabey the fam

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  • Master
  • 10,594 Answers

Hi,
4 times blink shows Temp Error and requires temperature sensor replacement in Sony KF-50WE610 TV

Posted on May 21, 2009

  • Shahid Electronics
    Shahid Electronics May 21, 2009

    I got your question and replied it as service manual says about 4 blinks error. TV gets high temp signal from temp sensor.
    Check temp sensor and replace it.

  • Shahid Electronics
    Shahid Electronics May 23, 2009

    Hi,
    Sorry for delayed reply as I was busy in real business.
    Temp sensor is called IC41 and part number is as follows..
    IC41 8-759-442-07 IC LM75CIMX-5
    it is mounted on H3 board and board part number is as follows..
    A-1405-433-A H3 BOARD, COMPLETE
    and H3 Board is available in Part Store.


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