Question about Sony FD Trinitron WEGA XBRKV-40XBR800 40" TV

1 Answer

KV 40XBR800 will not turn on

Unit goes into OVP (stand-by LED flashes 7 times).

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  • Anonymous Mar 17, 2008

    KV-40XBR800 wont turn on. The standby light flashes 7 times. salt56 posted a solution to replace 2 ic's. What are ic's and where are they located?

  • WSLuck Mar 17, 2008

    This problem is intermittent, as long as the TV is plugged and I attempt to turn it on it will not come on. If I unplug it for a period of time and plug it in before trying to turn it on, it will come on.

  • WSLuck Mar 17, 2008

    ICs or integrated circuits- a combination of many circuit components packaged into a single chip. These chips Salt is talking about are located on the "D" board in between the Flyback transformer and the 2 large capacitors of the board. Black in color with the part number: MCZ3001D printed on their tops.

  • WSLuck Mar 18, 2008

    Thank you Salt! I found another forum for Sony TV problems, at that forum member referred me to a service bulletin recommending these 2 ICs. Im going to install sockets and replace the ICs. I will let you know what happens.

  • mikereese Aug 02, 2008

    I also have the same TV with the exact same problem. After reading the comments posted here last night, I unplugged my TV overnight. Just as expected the TV powered on fine the next day. Does replacing the two IC's with part number MCZ3001D really fix the problem? Thanks.

  • c beyer Dec 13, 2008

    did this chip fix the problem? i am having same issue.

  • David Laidig
    David Laidig May 11, 2010

    Does anyone know the part number of the board?

    Thanks, David

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  • 373 Answers

Likely to have two ic's bad....both are the same. Part number MCZ3001D. Located close to each other. Must be unsoldered and new put in. I have fixed several with this problem

Posted on Mar 16, 2008

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