Question about JVC Televison & Video

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2 Days ago we had a bad lightning storm and a bolt hit our tree and made the power in the house go out for a few seconds, the TV was working fine before the strike but after the screen will stay blank or black, the power button will go on and after about 20 seconds the light will blink, I also notice a clicking sound periodically and noise from the speakers. This is a JVC Model: AV56P776. I would like to fix this myself because I am not employed any help would be greatly appreciated, thank you,

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  • Jay Openshaw Aug 07, 2010

    I would like a second opinion on the power board and how hard would it be to replace the power board parts and if so where would I purchase the electrical parts?

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  • Master
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Well that sounds like a fault with the power supply board. The clicking noises indicate that the set is going into protect mode. Since you wanna do this yourself I will tell you the two routes you can take to fix this.
1) The easiest way will be to replace the entire power supply board. Should cost you around 150-200$
2)Component level repair. Just find the source of the fault(usually shorted components) and replace it. This will be cheaper bit tougher. Requires good soldering skills and knowledge of using a multimeter. You also need to be familiar with terminologies like ground, Vcc(A pin on the ICs that we use to measure the voltage with respect to ground.). Let me know what's your choice so that we can proceed accordingly.

Sai.

Posted on Aug 07, 2010

  • 3 more comments 
  • Jay Openshaw Aug 07, 2010

    I will just replace the power supply board.

  • eagle338
    eagle338 Aug 07, 2010

    In that case get me the part number off the board. You can locate it easily. Its the one into which the power cord from the AC mains goes into. Get me the part numbr and I will look it up in the online stores I know and will find you the part.

  • Jay Openshaw Aug 08, 2010

    Power

  • eagle338
    eagle338 Aug 08, 2010

    Thought i asked you for the part number of the power supply board!

  • Jay Openshaw Aug 08, 2010

    Sorry, I type it into the comment field but it must have gotten erased or something: PB Assy LCA90511

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  • JVC Master
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All what you see and hear is typical of what you would expect from a fried power source, Since the bolt hit very close the power spike was very high and the source has been extensively damaged . You must refurbish it and this implies replacing a lot of parts, knowledge of electronics and at least the basic tools: AVOmeter and a fine soldering iron and the other soldering stuff
If you don't have any of them you will have to replace the entire board. Here you can find it
http://www.partstore.com/Model/Matsushita/JVC/AV56P776.aspx
It's the SSR0L010A-M2 board and will cost $54.

Posted on Aug 07, 2010

  • Jay Openshaw Aug 07, 2010

    Ok, is this board hard to install and will there be any risk of electrocution?

  • Azrael SRL Aug 07, 2010

    If you unplug it from the wall then no, no risk.



    To replace it you must disconnect a lot of cables (make a drawing with where every cable goes and how) and some plastic clips - don't force then, crimp them with a plier and slide them out. This will take you about 2 hours of careful work.

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