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Thread: Please check my diagram, fuse size and wire size.

  1. #11
    Newbie BarinaHum's Avatar
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    My updated diagram.

    Thanks Red GTi VR6,

    I will go with you and DarquePervert recommended to powering my Liliput.
    I'm still not quiet understand many things, being new to the car audio and the car electrical thing.

    Here is my updated daigram, it might help some other newbies out there.
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    Car: Holden Barina 98
    Planning: [========80%]
    PC Parts: [==========100%]
    Fabrication: [=====50%]
    Total Progress [======60%}

  2. #12
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    are those USB hubs pulling power from anywhere or are they relying on the single USB line to provide power for everything?
    Jan Bennett
    FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

    Please post on the forums! Chances are, someone else has or will have the same questions as you!

  3. #13
    Car Audio Moderator durwood's Avatar
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    I didn't power my Liliput directly off my PSU because I didn't want to load down the power supply. Instead I used the egg shaped regulator however I used the PSU to trigger a relay to turn power on and off to the egg shaped invertor.

    This way, my montior turns on and off with the computer, not just the car, but is not directly powered by the PSU. Just another way to do it.

    Added: Nice diagrams. good work.

  4. #14
    Newbie BarinaHum's Avatar
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    Quote Originally Posted by RedGTiVR6 View Post
    are those USB hubs pulling power from anywhere or are they relying on the single USB line to provide power for everything?
    They are relying on the two USB from motherboard. I already have two USB hubs which don't need PSU to power them lying around. So I was thinking of using them. Do you think I should get one of thoes that need PSU?

    Thank you.
    Car: Holden Barina 98
    Planning: [========80%]
    PC Parts: [==========100%]
    Fabrication: [=====50%]
    Total Progress [======60%}

  5. #15
    Newbie BarinaHum's Avatar
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    Thumbs up

    Quote Originally Posted by durwood View Post
    I didn't power my Liliput directly off my PSU because I didn't want to load down the power supply. Instead I used the egg shaped regulator however I used the PSU to trigger a relay to turn power on and off to the egg shaped invertor.

    This way, my montior turns on and off with the computer, not just the car, but is not directly powered by the PSU. Just another way to do it.

    Added: Nice diagrams. good work.
    Thanks for sharing your method. This could be useful info for me and other newbies. I still don't know much about relay, but it is very useful indeed.
    Car: Holden Barina 98
    Planning: [========80%]
    PC Parts: [==========100%]
    Fabrication: [=====50%]
    Total Progress [======60%}

  6. #16
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    you can give them a go, but I'd keep it in the back of your mind if you start to run into problems.

    Just because a USB hub doesn't have external power doesn't mean it can power everything you plug into it.

    Only so much current is carried on a single USB line.

    If you plug one thing into that hub that requires all of the current that a single USB line can provide, then what happens when you plug the next piece in that needs just a little power?

    That's where the powered USB hubs come into play.

    Electricity isn't some magically generated thing, you have to provide it when it's needed otherwise things won't work correctly.

    Most of the items you have listed don't appear to be very power hungry, and if they are they will probably have their own power adapter (USB sound card and DVD burner for examples).

    Just keep it in mind if you start to run into issues with things not working.
    Jan Bennett
    FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

    Please post on the forums! Chances are, someone else has or will have the same questions as you!

  7. #17
    Car Audio Moderator durwood's Avatar
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    Here you go..I modified this picture taken from www.the12volt.com

    This is how I have mine wired up just from reference.
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  8. #18
    Newbie BarinaHum's Avatar
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    Quote Originally Posted by RedGTiVR6 View Post
    you can give them a go, but I'd keep it in the back of your mind if you start to run into problems.

    Just because a USB hub doesn't have external power doesn't mean it can power everything you plug into it.

    Only so much current is carried on a single USB line.

    If you plug one thing into that hub that requires all of the current that a single USB line can provide, then what happens when you plug the next piece in that needs just a little power?

    That's where the powered USB hubs come into play.

    Electricity isn't some magically generated thing, you have to provide it when it's needed otherwise things won't work correctly.

    Most of the items you have listed don't appear to be very power hungry, and if they are they will probably have their own power adapter (USB sound card and DVD burner for examples).

    Just keep it in mind if you start to run into issues with things not working.

    Thank you , I certainly learn alot from this forum.
    Car: Holden Barina 98
    Planning: [========80%]
    PC Parts: [==========100%]
    Fabrication: [=====50%]
    Total Progress [======60%}

  9. #19
    Newbie BarinaHum's Avatar
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    Quote Originally Posted by durwood View Post
    Here you go..I modified this picture taken from www.the12volt.com

    This is how I have mine wired up just from reference.
    Thank you once again.
    Car: Holden Barina 98
    Planning: [========80%]
    PC Parts: [==========100%]
    Fabrication: [=====50%]
    Total Progress [======60%}

  10. #20
    Constant Bitrate popi79's Avatar
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    remember use a diode

    remember use a diode///
    If you power a relay from your psu remember to use a diode between leads 85 and 86
    85 being the striped side (+) and 86 ground, so when the relay shuts down wont hurt your psu electronics.
    You see, because the relay is a coil it will save some energy in itself and then it will reverse when shut off, this energy can reach up to 200v and a diode will prevent energy from returning to its source.
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    "Most of the users you'll see in this site are still learning specially me"

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