Question about Sony KV-36XBR400 36" TV

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Sony kv 36xbr400 - Won't stay on

My TV is about 10 years old. When you first turn the TV on it stays on for about 15 minutes, then it turns off. Then you turn it on again it stays on for less than aminute before turning itself off again. Is the power supply going bad? What else could be causing this?

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  • oracionmarci Oct 13, 2008

    open the TV then the screen is full of light, no picture

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Problem is in the secondary power supply which provides power to high-voltage and scanning sections of main board. This is called BOARD D, and has the high-voltage section, flyback transformer, and control IC on it.

Can't be fixed by user, needs service tech and new part, around $300

Posted on Feb 21, 2009

  • Christopher Shanaberg
    Christopher Shanaberg Apr 29, 2014

    should I simply sell this Tv and upgrade?

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Probably an IC chip but will need testing to see all that has gone bad on the set

Posted on Oct 15, 2008

  • Machos Jan 26, 2011

    This means that one of the components in the power supply or high voltage section is changing behavior when is getting hot.. Even if you are not a technician you can buy a freezing spray. Usually is an IC or electrolytic capacitor, freeze them and try to find out which one is the guilty component!

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0000abe.jpg a288bbc.jpg
Regards,

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1 Answer

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1 Probable
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