Question about Sony KP-57WV700 57" Rear Projection HDTV

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Sony KP-57WV700 Convergence Repair Failed - TV won't stay on

I ordered your Sony KP-57WV700 Convergence Repair Kit from tvrepairkits.com and attempted the repair. I replaced the convergence chips and turned the TV back on. It seemed fixed. My picture was back to normal.

But after about 5 minutes my TV powered down. It would only stay on a few minutes before powering down.

I did some research and read that this may be due to a bad soldering job. So I desoldered the convergence chips and resoldered them. Now my TV's convergence is worse than when I began the repair...and the TV still will not stay on for more than a few seconds.

I'm not sure what to do at this point. I did not change the pico fuses as I did not know how to test them with the meter I have. Any assistance anyone can provide would be greatly appreciated.

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  • financesmart May 04, 2010

    Thanks for the quick reply Chu. Looks like I need to get new chips for this set.

    One other question, do you have any idea why the TV would not stay on the first time? The convergence was perfect but the TV just powered down. Do you think this was bad soldering, blown fuses?

    I just don't want to spend more money and run into the same problem again. Thanks!

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Sorry ur convergence ICS are shorted and dead.Because u put in solders and take out solders to many times.The heat of ur soldering iron,and the electrostatics will kill the ICS,if keep putting heat in the ICS legs alots times.Buy the convergence kit again,replaced every componnents in that kit to ur tv.Because,the kit been research and put together.What the most common componnents that burn and dead in the convergence circuits.

Posted on May 04, 2010

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  • Chi Chu May 04, 2010

    U skip a pico fuse or a resistor right?That why it shutdown.These convergence kit been tested and been replaced many times before by the people that put it together.So replaced all the items,what ever in the kit.

  • Chi Chu May 04, 2010

    U have soldering flux,not buy some because it will help,the solders flows will be better and stick to the componnents ur solering more evenly and smoothly.

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I set converger and watch tv but after changing the channel a few times I need to set converger again and again do you no why??

Posted on Aug 22, 2010

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SOURCE: Only HD channels have 3D look - Sony KP-57HW40

have you ran magicfocus on hd channels and if you have and still have problem
it will most likely have to have adjsutments done in the service menu when running on a hd signal

Posted on Oct 24, 2009

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