Question about Sony KP-53XBR45 53" Rear Projection Television

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Will not power up

I have a sony tv bought from somebody had really great picture one day all of a sudden we tried to turn it on and it will not go on, you would hear it power click like it was turning on the red light would blink but turn right off, and I read one of the solutions they had the check and clean all the connnectors and the tv is still doing the same, Does anybody know what the problem is and is it worth fixing,

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  • lourans Jun 19, 2008

    Sony rear projection tv. Was working just fine and suddenly we lost the sound and picture together. When pressing the power button on the remote control we can hear the switching sound from the TV but no sound or pictures. The front standby light keeps flashing when power button is press.

    Please help.

  • Anonymous Jun 25, 2008

    exactly the same problem

  • Anonymous Jul 04, 2008

    Turn the T.V on and the red standby light blinks once, and then nothing, as if tho it just shuts off. I know NOTHING of these t'vs and its my friends who I went to turn on and discovered this problem. HELP PLEASE!!!

  • JSoliday Jan 17, 2009

    I have a sony kp-53xbr35 56inch television that worked wonderfull untill i turned it off to go to bed. When i went to turn it on the next day i have no power to it. The stand bye lifht doesn't even light up. What could cause this?

  • rochelletere May 24, 2009

    MY SONY KP53XBR45 53" TV TURNS OFF AS SOON AS I TURN IT ON, IT SOUNDS LIKE IT IS GOING TO COME ON AND THE RED LIGHT COMES ON BUT THEN IT TURNS RIGHT OFF. HELP PLEASE.

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I had a similar problem. Look for a burned/shorted out capacitor on the main board. (It is marked J-something I forgot), 10mm diameter ceramic capacitor, 1000pF 20k SON116175400
It is about 3-4" from the left edge of the main board (power supply side), near the middle of the board. It is close to a large transistor mounted vertically on a cooling plate. It is a special high-voltage capacitor, you can find it online. Check the large transistor - it may be damaged too (mine was ok). After installing the new capacitor I got good sound and really weak picture. I called a repair guy who found a bad chip - after 3 hours of looking. The TV works fine ever since. As I learned, in most cases all you need is a new $5 capacitor. If you had a good picture before, it is worth the "investment" to fix this problem.

Posted on Aug 31, 2008

  • Laszlo Som Aug 31, 2008

    I found some more info I had written down. The capacitor's number on the circuit board is C514. Unusual, but Sony released no specifications for this capacitor. The 1000pF 20kV capacitor mentioned in my previous post was suggested by someone - and it works in my TV. Another suggestion I received later was: Sony model # 1-162-133-00, 390pF 2kV.
    The large transistor I mentioned in the previous post is the Horizontal Output Transistor.

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