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SONY 21" Monitor M50LMD15X

Discussion in 'Electronic Repair' started by Shaun Davy, Sep 5, 2004.

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  1. Shaun Davy

    Shaun Davy Guest

    I have recently been given a 21" Sony (Compaq badged) Monitor Model
    M50LMD15X. Date of manufacture of this unit is September '98. I think most
    recent Sony 21' have pretty much the same internals sparing a few changes
    here and there.

    The problem with this unit is that the picture jitters up and down the
    screen constantly, with temperature and a good whack having no effect. I
    have checked the power supply and it seems fine with very slight variations
    in voltage (.1V on the +/- 15V rails etc). Had a general inspection of the
    deflection board and no obvious blown components

    Im thinking a capacitor is breaking down under load with my next step being
    to replace all the electrolytics in the vertical defection circuit. A good
    idea? or any other suggestions?

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