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Thread: Powering the DWW-700H

  1. #1
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    Powering the DWW-700H

    i just received this screen today and it looks really nice and sturdy to. I have read over the articles in here on powering touch screens. I read the manual that came with the screen and it says I can power it directly from my battery? Can I do this or not? According to the other articles I have read on here it says not to. If I should not do that what is the best way to power this screen?? Just to let you know I will be using an opus 150w power supply. Thank you

    Chad

  2. #2
    Neither darque nor pervert DarquePervert's Avatar
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    YOu're not going to trust the manual that came with the product?
    If you couldn't power it straight off the battery, I don't think they would print that in the owner's manual.
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

  3. #3
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    i was reading the manual a little more and it says the Operating Voltage range is 10.8-16 V DC (max 1 A). It also says the input Voltage is 12 V DC

  4. #4
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    re

    its not that i don't trust the operating manual but after reading an article on this website about how the screen needs to have a consistant 12v. The last thing I want to do is put all this money in to a screen and then have it get fried b/c it was going to be easier to hook it up to my battery instead of doing it right. I posted the operating voltage range in my post above b/c i know that car batteries operate off of a 12 to 14v. Correct me if I am wrong

    thanks

    chad

  5. #5
    Variable Bitrate
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    10.8-16 V DC means that it should work in all normal car enviorment. I doubt you will have any problems.
    Progress,.... that is what I keep forgetting ;)
    planning_[++++++++++]. 110%
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  6. #6
    Maximum Bitrate buurin's Avatar
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    My screen(700H) is coming wednesday... i have a double din opening and i am putting both the screen and a head unit in. I will be tapping into the 12V going to the radio with one of these:

    http://www.radioshack.com/product/in...entPage=search

    Same with the GND, and ACC line..

    I've been told this is okay due to the fact the LCD draws max 1A on the 12V, and the ACC line draw is negligable(SP?)
    B Smoov
    Project Status: 90% Complete

    Next Step: TIVO for Radio

    Ampie Case :: MII10000 Mobo :: M1-ATX PSU :: 512MB RAM :: 2.5" HD, 60GB, 5400rpm, 16MB Buffer :: DWW-700H :: Centrafuse

  7. #7
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    Well, the manual for the 700H is a joke. It is obviously translated (poorly) from another language. I would trust what someone here on the forums said before I trusted anything in the manual.

    I have tried both ways to connect. I have tried the power coming from my 12v rail on my P1900, and I have tried straight off of my battery. With the car on, neither of these configurations work. All the connections test out 100% ok, ACC, both grounds, power, all connected where they should be, but it still won't come on.

    I dont know about the opus, but my carnetix P1900 cuts power off when you turn off the ignition. If you wire your power line from that, you will loose all of your menu settings on the screen itself. BUT that would be a regulated supply of 12v. Attaching it to the car battery however will supply the power needed to keep the memory alive on the screen, but it will be an unregulated supply. I too am not sure which one would be the preferred solution.

    Hope you have better luck than I have. I'm pretty sure I got a bad unit, I emailed them about it on Friday, Saturday, and today, and have tried calling them twice during the day today, and didn't get any response.

  8. #8
    Low Bitrate NickFury's Avatar
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    wittless..

    I forget the exact wires, but I think there was Red (power), Black (ground), Blue (Acc) and Green (acc ground), (maybe I have green and blue reversed, I cant remember). I was having some issues just like you, until I figured out I had the damn wires mixed up.

    I tapped the Acc line into 12v power, and tapped the acc ground into the 12vground.

    For about two weeks I also had the unit running in my house. I took an old 12v powersuppy and hacked the ends off. I split the wires, took a multimeter, found power and ground, and hooked the screen directly into that, pluged it into the wall and it worked fine.

    There was a thread a while back where me and Burrin were talking about this same problem, and Burrin figured it out and it started working.. I'll see if I can dig it up.

    Edit: There ya go... Install/Power in dash LCD

  9. #9
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    Appreciate the suggestion NickFury, but I tried that and it still does not come on. I am convinced that I have a bad unit. It is just a matter of getting ahold of someone at digitalww to get a replacement, which has so far been impossible.

  10. #10
    Maximum Bitrate buurin's Avatar
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    not to 'thread jack' as the forum veterans say but... since you both have the 700H, i was curious if you had any issues with the touchscreen drivers?

    I read some people who had trouble getting them up and running... Im running XP SP2.

    Thanks.
    B Smoov
    Project Status: 90% Complete

    Next Step: TIVO for Radio

    Ampie Case :: MII10000 Mobo :: M1-ATX PSU :: 512MB RAM :: 2.5" HD, 60GB, 5400rpm, 16MB Buffer :: DWW-700H :: Centrafuse

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