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

1 Answer

Sony KF-50WE610 flashing power/standbylight

TV will not turn on, I can hear a relay and high pitch buzzing as it attempts to power on. Power/standby light flashes green for ~45 seconds, then transitions to a long series of 5 red pulses, pause, 5 red pulses, etc, finally ending in solid red.

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  • jones_scott Jan 18, 2009

    I'm not familiar with TV repair, but am comfortable working on electronics if it's as simple as replacing a board and doesn't require sodering. I've fixed many issues with computer - mother board, hard drive, etc. Please advise

  • jones_scott Jan 18, 2009

    Is there somewhere online to find instrructions on replacement? If not can you tell me location of ballast and how to open up tev? Thanks.

  • jones_scott Jan 19, 2009

    Welcomejee, I also found some other links on line that suggested changing lamp may also fix this problem. Do you agree?

  • jones_scott Jan 31, 2009

    Welcomejee, I replaced ballast supply and the 5 blinks error code stopped flashing and the lamp replacement light came on. I put the old ballast supply back in and lamp replacement light blinks, and 5 blink error code disappeared. I removed the old lamp (a shattered bulb dangling from the filament) and ordered a new one. Is there anyway to know if the old lamp had just run its course or if there was in fact something faulty with the ballast supply that caused the lamp to blow? I just don't want to stick the new lamp in and have it immediately blow. TV is 4 years old with minimal use for the last year, and I'm unsure of hours on the bulb. Any advice is welcomed.

  • jones_scott Feb 04, 2009

    Welcomejee. TV now seems to work fine with new lamp and old ballast. Thanks for your guidance.

  • donasimm Feb 20, 2009

    i also have the same problem as this it turns on then after a few seconds switches to stand by the tv is 2 years old and a 50". but if the bulb needs replacing where is the easiest and quickest place for me to get one for the tv.

  • Anonymous Mar 13, 2009

    Same problem with the Sony WEGA HDTV. It's only 4 years old. Let me know if you figure out the solution to the problem.

  • Shahid Electronics
    Shahid Electronics May 11, 2010

    5 times blinks and high pitch buzzing shows problem with ballast supply of Lamp.
    let me know If you are familiar with TV repair to guide you more or ask local TV Tech for proper fix.

  • Anonymous Mar 22, 2014

    poer on green power light flash, then red standby light flash no picture


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Its small board with few connectors and easy to replace.
You can buy required part from Part Store. You may see image of ballast supply there.

Posted on Jan 18, 2009

  • 1 more comment 
  • Shahid Electronics
    Shahid Electronics Jan 19, 2009

    I'm suggesting ballast supply upon feedback of high pitch buzzing. Lamp can be bad too and after 2500 hours service TV will ask for new lamp.

  • Shahid Electronics
    Shahid Electronics Jan 31, 2009

    Ballast supply can not just blow lamp quickly. It is power source of Lamp tom produce light for projection.
    usually Lamp has 2500 or 3000 hours life hours, its light will become low after such hours and you will notice dark picture.
    Please install new ballast supply along with new Lamp. TV will work fine.

  • Shahid Electronics
    Shahid Electronics Feb 04, 2009

    Thats great!


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