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laptop HP XE3

Discussion in 'Electronic Repair' started by Peter, Nov 4, 2004.

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  1. Peter

    Peter Guest


    the background light of my HP XE3 notebook is not working any more.
    i can not measure any voltage on the 2 pins for the neon light tube.
    there has to be always something like 500 V, hasn't it? (with and
    without the tube?)

    on the 5 wires wich come from the pc to the high voltage converter there
    is 5 V on 2 of them, around 1.5 V on 2 othes. always measured against
    the black one which i believe to be GND.

    is it normally the converter or the lamp which breaks down?

    thanks and greetings,
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