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    CF-52G Invertor problem ?

    Discussion in 'Panasonic' started by Alleytom, Mar 29, 2013.

  1. Alleytom

    Alleytom Notebook Enthusiast

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    My CF-52GCMDEAM is starting to screech louder and louder, it goes away when I turn the screen brightness down or when I flex the screen. From what I've read in the forum it's an inverter board going bad. Anyone have an idea ?

    Thanks,
    Tom
     
    Alleytom, Mar 29, 2013
    #1
  2. toughasnails

    toughasnails Toughbook Moderator Moderator

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    Tom . If you are looking for the inverter then you should post this in the BST Forum. I will leave this here for now just incase someone might have an idea what your problem is
     
    toughasnails, Mar 29, 2013
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  3. Shawn

    Shawn Crackpot Search Ninja and Options Whore

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    Trying cleaning all the connections first. It's free and worth a try.
     
    Shawn, Mar 30, 2013
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  4. unclemack

    unclemack Notebook Evangelist

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    Don't know about screen inverters specifically, sorry, but I expect a small transformer might be the problem.
    In other electrical/electronic equipment you would check the wound components - transformers & coils. Sometimes you can shut them up with a gout of resin, or glue from a hot-glue gun. Sometimes the original lacquer on the coils fails allowing the windings to vibrate. That's what I think you're probably hearing. Can be caused by failure of another component shifting the frequency though...
     
    unclemack, Mar 30, 2013
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  5. onirakkiss

    onirakkiss Notebook Deity

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    try a quick google for 'noise transformer'

    I would asap resolder the pins of the small transformer on the inverter board first and add some hairspray on it to glue the parts together....
     
    onirakkiss, Mar 30, 2013
    #5