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Monitor V1428NI --H.O.T. running too hot and shorting

Discussion in 'Electronic Repair' started by Aldo Barrios, Jul 11, 2003.

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  1. Aldo Barrios

    Aldo Barrios Guest

    This is a 14 inch monitor V1428NI that i fixed replacing the hot
    (BU2520DF) for a 2SC5296 but it gets too hot. Well it was hot with the
    BU2520DF too. And it won't accept 800x600 and 1024x768 . Only 640x468.
    It used to accept the three of them. I have replaced the horizontal
    driver (IRF620) with no improvement. I have checked caps and resistors
    near the hot and driver. All test ok. I notice there is a blackened
    coil, but it is not open.
    Any ideas. Thanks.
     
  2. techforce

    techforce Guest

    Resolder FBT. If the FBT has a bad Internal Cap, it will shorten life of
    HOT.

    You also could have a Problem in the B+ Boost circuit. Whats the FCC number
    of the Monitor?
     
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