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Thread: LCD works fine on one PC but is dim as hell on my CarPC

  1. #1
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    LCD works fine on one PC but is dim as hell on my CarPC

    I got a 6.4" LCD kit off eBay some time ago that was originally sold by earthlcd.com and I am having an odd problem with it. I hooked it up to one of my desktop PCs (powered through a molex connector) and it was working fine. Then I hooked it up to my CarPC and it wouldn't boot completely since the PS couldn't handle the LCD. So I got an old PS that has the switch wired to it and hooked the LCD up to that, but now it is extremely dim, and is only visible if looking at it from a top angle. Any ideas? Thanks in advance for any help you provide.

  2. #2
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    in addition to voltage, make sure you are supplying the proper amount of current from your power supply.

  3. #3
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    The switching power supply that I tested is rated for 200w with 7.5amps on the +12 volt rail. I think that should be more than sufficient to run just an LCD. Does the VGA cable itself pass any current? Maybe I will try re-crimping the molex connectors.

  4. #4
    Variable Bitrate Moneyfink's Avatar
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    yellow = +12 volts?
    My OLD carputer page
    My NEW carPC



    Via Epia M10000, 512 PC2100, Opus 150, 8" lilly touch, 320 GB 7200 WD Caviar

  5. #5
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    Yea, and I used the ground next to that, although the LCD works without the ground - red on LCD to yellow molex.

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