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My sony KP53V75 was playing then the next day turned it on sound and the LED is just flashing

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Hi,
KP-53V75 is 1998 model tv.
Horizontal deflection section failure is common problem in these models and blinking standby light is sign of error that shows tv got some internal problem.
I'm not sure about your electronics knowledge level, however, unplug tv from AC socket and check horizontal output transistor on G Board in tv as it contains horizontal deflection section, check flyback transformer and/or high voltage block that could be one of reason of problem. Power supply section is also located on G board so follow AC cord of tv that goes to G board.
If you are not familiar with tv circuit board repair then local tv repair shop is an option to get tv fixed.
Let me know if you have additional question.
Thanks.




Posted on Aug 05, 2010

  • 2 more comments 
  • John Ryan
    John Ryan Aug 05, 2010

    do you know the pin numbers on the G Board for the horizontal output transistor

  • Shahid Electronics
    Shahid Electronics Aug 05, 2010

    Yeah, get back to you with PCB image that will show you H-Out transistor location on G board.



  • John Ryan
    John Ryan Aug 05, 2010

    Thank You very much

  • Shahid Electronics
    Shahid Electronics Aug 05, 2010

    Check Q502 near Flyback transformer as shown in below PCB image.
    Q502 part number is as follows:
    872902405.... 2SD2348

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