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Thread: Help with new project with multiple LCDs

  1. #1
    Newbie Havok1327's Avatar
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    Help with new project with multiple LCDs

    Heya, Well Iíve spent the good part of week reading this forum and I picked up quite a bit as far as CarPCs are concerned. I build most of my own systems so Iím no stranger to a PC, and if I had to just put the CarPC in I donít think it would be much of an issue.

    But hereís my current situation. Last December a local audio shop installed a DVD player and 2 6.5Ē Kenwood LZ-6500W LCDs into the head rests of our í05 Tahoe. The LCDs in back use an RCA out from the DVD player to a distribution block which Iím guessing came with the Kenwood or was supplied by the installer. From that block there is a single cable to each monitor. They ran the sound through an FM modulator into the stock head unit and also put wireless headsets so when the kids get older they can use those while my wife and I can listen to the piece and quiet.

    They did a great job on the install, but the DVD player is having a lot of problems playing home made DVDís it will do it but you have to eject the damn think about 4 time, blow the dust off, wipe it on your pants and then maybe it will play. All the while I have 2 kids screaming for Elmo or the Wiggles. They placed the DVD player under the back seat behind the driver so its pretty easy to get to for the passenger.

    Well 6 month of this has shown me a few things.

    1. Rarely are there 2 people in the car when the kids want to watch a DVD. So it makes the drivers life hell to change them.
    2. Once you get the DVD loaded navigating the menus is a *****, the kids arenít old enough to do this so we have to.
    3. When you get in the car the DVD they want to watch is always in the house DVD player.

    When I approached my wife with the CarPC idea, its her car after all, she was up for it, but she vetoíd the idea of a screen to replace the stock head unit. So hereís my plan. I want to put a touch screen LCD up front in the console somewhere, probably in the cubby hole between the console and the dash. Iíve measured I can get a 8ĒLCD in there easily. (I know Iíll have to fabricate up something for this, Iíve never done something like that before, but Iím reading the fabrication forum and have a good idea of what I need to do. Iím sure Iíll have a ton of question on it when I start in on that.) This LCD in turn will connect to a CarPC. I want to use the CarPC for DVDs playback to the 2 LCD monitors in the back and still be able to use the TS LCD up front for GPS.

    Hereís my gray area, From the CarPC I just use the VGA out for the front LCD and a TV out for the rear LCDs? If so I just need to find a MB that has a VGA out and TV out, that it? Such as one from Via, the M10000 for instance.

    Assuming this is the case. Is there a way navigate the menus from the DVD on the front LCD?

    Thanks in advance.

    Matt

  2. #2
    Newbie Havok1327's Avatar
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    Anyone have any feedback?? Anyone??

    <Insert sound of crickets churping>

  3. #3
    FLAC FC3S's Avatar
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    from what i've read, most wont support both the vga out and tv out from the motherboard at the same time

    mind you, you could always get a carpc that has a pci slot, and put a tv out card in it, then you should be able to have vga out as well as rca out

  4. #4
    Banned Motorcity's Avatar
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    easy fix.
    remove dvd system, and buy the kids coloring books and crayons.
    remember waaaay back when you went on car trips with your parents?
    did you have a tv screen and dvds to watch? hell no. you sat in the back seat, kept your trap shut and did as you were told.
    <EOR>
    JK

    ayway, what you need to find is a mobo that has vga and rca out, and can support both at the same time. Easier sadi than done. Epia's do have rca out, but people seem to have issues with using them concurrently.
    Have you looked at Jetway's boards? much cheaper than Via, and offer more CPU choices, as well as onboard options. They are the same ITX form factor, so they fit any ITX case.
    Here is my reccomendation:
    Use a Jetway board with LVDS option. Connect your front lcd to the mainboard via LVDS, not VGA. Connect the RCA out to your signal splitter.
    The bios setting for the video will allow both to be used at the same time, solving all of your problems.
    I have some Jetway boards in stock, if you want more info, pics, etc.
    Good luck

  5. #5
    Newbie Havok1327's Avatar
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    Thanks for the replys. Yes I do remeber car trips as a kid. I had to use those.... what were they called... oh yeah books to entertain myself.

    I'll have to give it some though on those options keeping power and heat in mind.

    Motorcity can you get me the info on the Jetways mbs?

    Thanks

  6. #6
    MySQL Error MatrixPC's Avatar
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    In my Matrix setup, the mobo has builin video card with VGA and S-Video or Composite output (with optional 20 bucks adapter and I bought the adapter).
    Composite is connect to 2 headrest monitors (identical source).
    Whenever DVD is play, the headrests, get Full screen DVD. Up front I can watch dvd or GPS. Basically, this is jut software stuff.
    With Road Runner, I can have DVD/Movies playing for the backseat and GPS up front. When no DVD or movie is playing, they can play Solitare/Freecell or watch the moving map. Their only mean of control is wireless mouse and keyboard.
    I have another nVidia card laying around. I want to put it in and use the composite output so that 3 monitor can have 3 different thing. Will try it someday.

    Regarding to buying mobo/cpu, I would opt to get any nVidia chipset uATX mobo and pair with an AMD AM2 CPU. Powerfull and much cheaper.
    2004 Matrix XR A7N8X-VM/400 AMD XP-M 2500+, DS-ATX
    89 Supra Turbo P3 600E@750/Abit BE6 II, Alpine M-BUS Car2PC.
    Y2K Accord Dell GX150
    RoadRunner is the best FE PERIOD
    EmoRebellion is a SCAMMER

  7. #7
    Banned Motorcity's Avatar
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    Quote Originally Posted by MatrixPC View Post
    Regarding to buying mobo/cpu, I would opt to get any nVidia chipset uATX mobo and pair with an AMD AM2 CPU. Powerfull and much cheaper.
    What would you say is a rough estimate for the setup you mention?

  8. #8
    Variable Bitrate red_parchel's Avatar
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    i run a Versa-C7-1.5G and it runs both vga and rca video [both onboard] at the same time, you could then use a 8" touch screen up front to control the DVD's in a DVD drive in the pc ... so:
    vga > 8" touch screen
    rca out > "distribution block"

    only snag here is as the kids get older they wont have control of the carPC [but that might be a good thing]

    good luck

    -red
    MobileThree: in car - Zotac Atom/ION - linuxICE 2.0.2

    --worklog--

  9. #9
    Constant Bitrate
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    Quote Originally Posted by Motorcity View Post
    easy fix.
    remove dvd system, and buy the kids coloring books and crayons.
    remember waaaay back when you went on car trips with your parents?
    did you have a tv screen and dvds to watch? hell no. you sat in the back seat, kept your trap shut and did as you were told.
    <EOR>
    JK
    HAHAH LOL!

  10. #10
    Newbie Havok1327's Avatar
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    Guys thanks for all the options. I'll have to take a look this weekend and see what going to work for me.

    Red - Any issues so far with that MB? Heat & power working fine?

    thx

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