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Thread: dark tft

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    dark tft

    I've just got a used TFT (compaq tft5010), and it's very dark. Does anyone know why this would happen, or how to fix it? I think it may be the backlight, but im not too sure.

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    King of the Juice Platinum's Avatar
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    More than likly the backlights, I think they use cathodes so may be fixable with some white cathodes?
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    Yea it does sound like the backlights, they normally use 2 white cathodes iirc, one on the top and one on the bottom. Is it still on warranty? Otherwise you could try and open it and replace them?

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    it's out of warranty, so i'll have to try and replace them. should be fun...

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    Dickie where abouts in the west midlands are you?
    Also some of them have for example 4 cathodes behind the actual screen panel also behind a diffuser. It differs with different monitors.

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    I'm in stourbridge..

    and as for the tft, i've just taken the lid off and I can see 2 cathodes, both of which seem to be working fine. could it still be a problem with those, or is it likely to be something else?

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    How bright are they? Cathodes get darker with age, same as most bulbs.

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    they're not amazingly bright, but not dull either. They are quite old tho (tft made in 2000!), so they probably do need replacing.

    Maplins me best bet for them dya think?

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    I would try emailing Compaq first asking for details of the cathodes used, will be much easier to track down some good ones for it when we know all the details.

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    hp/compaq emailed, now time for some sleep!

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