Question about Sony KDS-55A3000 55" HDTV

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Sony kds 55a3000 sound but no picture

Green light blinks for about 10 seconds and then sound comes through with no picture. No error codes or strange sounds. I have tested voltage to ballast (397V) and replaced the bulb. If the ballast is bad I would get an error code of red blinking lights or clicking and buzzing correct? This is really frustrating and any help is greatly appreciated.

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  • joshua333
    joshua333 Dec 09, 2012

    I tested the voltage to ballast and it was a few volts low. 395-397V Would this cause the no picture problem? The bulb is a brand new phillips. No error lights or sounds is making it hard to diagnose. Someone please help. Thanks

  • joshua333
    joshua333 Dec 25, 2012

    Well,, maybe? Brand new Phillips bulb from reputable supplier. I can see why you would say that considering no error code, noise or other indication of problem. Sound with no picture would indicate bulb or ballast right? Bulb or ballast problems would result in an error code right? I'll put the bulb in another TV to test it and let you know. Thanks


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  • Sony Master
  • 14,553 Answers

I hate to say it but maybe the new lamp is bad.

Posted on Dec 23, 2012

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SOURCE: i have a sony projection tv kds-55a3000 the green

Straightv from the SONY service manual

  • 2 times, Diagnosis: B overcurrent (OCP). Possible causes: H. OUT (Q8024) is shorted. (D board), +B PWM (Q8035, 8038) is shorted. (D board) Symptoms of the problem: Power does not come on, Load on power line is shorted.

  • This is not DIY stuff and is dangerous to play around with. I suggest you get a tech to fix it rather than opening it up and doing it yourself. Also dont keep turning it on in the hope it will start. It is more likely to start a fire if it begins to overheat from being constantly started and left plugged in.UNPLUG it

    Please rate my help++++Thanks for using FIXYA

    Posted on May 07, 2010

    • 1 Answer

    SOURCE: Sony SXRD KDS-50A2000 Will not power on. Green

    I have the same problem with my unit. I've been removing the bulb and just replace it back and unit will work again. I probably need to vacuum or check the fan out too.

    Posted on May 11, 2010

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