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Thread: LCD making noise when connected to laptop.

  1. 09-10-2003, 02:06 AM #1
    jabba
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    LCD making noise when connected to laptop.

    Hi, i was just wondering what the best plan of attack was for this problem, i've got my new 15" BenQ lcd grounded via a screw in the back of the case and that cured most of the noise bar some slight inverter noise, but when i disconnect the monitor cable from the laptop the noise stops, i was wondering how i should go about fixing this, can i just cut the ground wire in the cable or will this cause problems.


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    Damien
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  2. 09-10-2003, 02:42 AM #2
    frodobaggins
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    since laptops are hard to ground, I propose this:

    try to somehow ground the outside of the vga connector....which connects to the laptop...which should ground the laptop..

    might work
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  3. 09-10-2003, 03:23 AM #3
    jabba
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    Hrmm, well my laptop is grounded from the serial connecter, i've tryed grounding the whole lot from the outside of the vga connecter and still get noise, the only way i can get rid of the noise is to ground the laptop from serial connecter - car and the lcd from a screw in the back of it to same spot on car and not have the vga cable connected.


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    Damien
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  4. 09-10-2003, 01:27 PM #4
    gizmomkr
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    What happens when the laptop is running off bettery ?

    Buy the radioshack DC-DC converter. ditch the inverter
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  5. 09-10-2003, 03:50 PM #5
    jabba
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    sorry, should have explained better. I broke my laptop's lcd screen so i pulled it off and turned it into a carputa, i've just bought a benq 15" lcd screen to connect to my laptops vga out...

    <edit> without the inverter how would i power the lcd
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    Damien
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  6. 09-10-2003, 08:45 PM #6
    frodobaggins
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    Quote Originally Posted by jabba
    <edit> without the inverter how would i power the lcd
    Thanks
    Damien

    with 12v....bet the power brick puts out 12v, I bet, I bet, I bet !
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  7. 09-11-2003, 03:37 AM #7
    jabba
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    no power brick..... just the normal computer power cord straight into the monitor, id have to pull it apart to trackdown somthing like that... Is there any guides to doing it?


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    Damien
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  8. 07-19-2007, 06:29 AM #8
    MunkyWrench
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    power brick is most likely to put out 19v. some laptops may charge from 12v, but most ive seen are 19v.
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  9. 07-19-2007, 07:10 AM #9
    meddler
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    way to revive a 4 year old thread.
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