Question about Sharp 32F540 32" TV

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STRS6707 problem im fixing a tv. Sony KV-G21MJ2. i've changed the regulator IC STRS6707 and it works. The next day i turned it on, the regulator ic get shorted, making the fuse to get open. tried to replace it again and it works. but the same thing is happening. today will work and tomorrow the ic will get shorted. i wonder why, could this be an issue of genuine parts? i've already change it 3 times now and still the same thing. need help pls.

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  • Noel Andres
    Noel Andres Jan 15, 2007

    the tv is Sony KV-G21MJ2 not sharp 32F540 32"

  • Noel Andres
    Noel Andres Feb 17, 2007

    THANK U STARGAZER, I ALREADY FIXED IT!

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In the past, my experience with Sonys is that you need to use Sony parts to successfully repair them. Also you might have a cold solder joint which creates an arc when you turn it on. This arc will cause a "spike" which could possibly take out the regulator. Stargazer

Posted on Jan 21, 2007

  • Simpson Neal Feb 17, 2007

    If the set you're working on has a small driver transformer in the power supply, it may be your problem.

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Hi
When you replace S6707 IC and the set is working you had better mesure the voltage in pin 9. If the voltage is higher than 15V replace the filter capacitor in de DC line to pin 9. Then redoall the soldering point over the power switching transformer, the reservoir capacitor. If there is a tunning capacitor (1000pF/2000V) replace it.

Sully

Posted on Sep 27, 2013

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Ceck for horisontal deflection, or cange s6707 with others

Posted on May 12, 2009

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