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  • New user- Starting project have some q..

    Found this site about a week ago and have been searching all weekend. I would like to try my 1st carpc install but have a few questions. 1st the car that this is going into is a 2003 altima non-bose. HU is a pioneer premier 7400, I have a 4 channel amp powering interior speakers, and a 2 channel powering 2 12"s. I have a sony laptop I cant remember the model number but I believe its a Duron 733, 20 gig, and DVD player. Heres the funny part the screen is cracked and I WAS looking for a replacement to swap in but then this idea hit me. If I wire the audio from the laptop to the aux port in my HU, and then buy a touchscreen like a DS700YYV to control with using the serial port and a vga cable, and then use a power inverter for the laptop and the LCD. By doing this I can use my laptop which is perfectly fine aside from a cracked screen, and just buy the screen and aux connector. Would this work? Would it sound good? Also any suggestions to make it sound better?

    Thanks

  • #2
    it should work as long as its a vga screen. You might have to hit the function+f5 key everytime you want it to switch.. I don't remember if it'll remember to use your vga out or not.
    '98 Explorer Sport
    http://mp3car.zcentric.com (down atm)
    AMD 800mhz 192megs RAM 60gig hard drive 9 inch widescreen VGA
    80% done

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    • #3
      Ok thanks, I was also thinking I should probably use a usb M audio sonica for sound, so that It sounds decent. For power should use a inverter for the power going from the power adaptor to the inverter than to the battery or is there a better way?

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      • #4
        This is pretty much howmy car pc is set up (with out the extra amps etc). PIII 650 laptop with a busted display, hooked to a 12.1" TFT (touch screen kit turned up today so that has now been installed). it is powered by various DC-DC converters, a car laptop adapter that steps 12v upto various other voltages (about 22v i think) runs the laptop. and a step down converter that does 12v to about 2.5v, as the added advantage of regulating the voltage as well so i can run the LCD in the car with out blowing the controller board when the engine is running

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        • #5
          Could you specify the exact power specifications because I think I would like to avoid the blowing out the controller car when the engine is running like you are talkin about.

          Thanks

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          • #6
            basicly if the car is running then the aternator is trying to charge the car battery, this causes the voltage available with in the car to be above 12 volts. most electronic equipment is very sensitive to voltages so a few volts above what is recomended by the manufacturer can over stress the components and cause them to fail. this is very much the case with LCD monitors. so if you monitor runs on 12v it should be fine hooked straight to the battery if the engine isnt running, but once you start the car the voltage jumps up to around 14-15v and this is too much for most 12v displays, so you need a power regulator to keep the voltage supplied to the display at 12v (i learned this the hard way and blew an LCD controller board).

            the lap top on the other hand is probably a different story, as it will probably need more than 12v (mine needs 19v @ 3.2amp). personaly i use an in car lap top adapter to run it, that steps 12v upto various higher voltages (including 19v). got it from maplin.co.uk and it cost about 20.

            just make sure you voltages stay at the value you need and dont fluctuate and you'll be fine

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            • #7
              you can probably get a car "cigarrette" lighter plug powre supply. I just did this for a fellow VW driver. We bought a female cigarrette plug and that worked just fine. USB sound, vga screen, touch, your good to go

              Ofcourse you'll have to find a creative way to mount it.
              Mine needs to be updated.

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              • #8
                Originally posted by samc
                you can probably get a car "cigarrette" lighter plug powre supply. I just did this for a fellow VW driver. We bought a female cigarrette plug and that worked just fine. USB sound, vga screen, touch, your good to go

                Ofcourse you'll have to find a creative way to mount it.
                this is the form that mine take. just use a 3 way splitter for the cigarrette lighter socket.

                riased the floor of the passenger footwell by about 3" so it all lives under there

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                • #9
                  O that wont be hard to mount. Strangely they place a cigarrette lighter in the center console compartment. I can probably use that one. Thanks for the replys do you know anywhere I can get one or any particular good model?

                  Comment


                  • #10
                    Originally posted by lazarus

                    the lap top on the other hand is probably a different story, as it will probably need more than 12v (mine needs 19v @ 3.2amp). personaly i use an in car lap top adapter to run it, that steps 12v upto various higher voltages (including 19v). got it from maplin.co.uk and it cost about 20.
                    both mine came from maplin, though they seem to have stopped selling the [email protected] step down converter.

                    You could take the route that GingerPrince did and build your own 12v regulator, the link to his site is in his sig. the scematic is at the bottom of the page

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                    • #11
                      model? we bought our female cig plug holder for $4.99 from autozone (a automotive store here in the States)
                      Mine needs to be updated.

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                      • #12
                        search for "N59AC" at www.maplin.co.uk this is the laptop power supply. as i said the other regulator isn't stocked there any more. thie cigarrette lighter splitter cost about 10 and came from halfords (www.halfords.com) but it doesn't appear to be on their website.

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                        • #13
                          Ok I think I know what you are talkin about, its adjustable from 15-20volts DC. I found this http://web1.applelaptopbattery.com/c...od&ref=SMP-70W sounds similiar will this work ok?

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                          • #14
                            A Bit...

                            Its abit iffy, so take care. I have my laptop in my car with no external regulation. I have found that the internal regulator inside the laptop to be quite capable of handling the variation off the back of the alternator.
                            i have tested from 9v to 15v and all rails on the stable side of the regulator remain constant. give it a go and if it works, why not. I have found other regulators generally cut off at 11 v so are therfore unsuitable for use power whil cranking. I pressume there is a fair amount of regulation in side the laptop. I am guessing the voltage is stepped up to say 30-50v and then back down again so that the power regs have a more stable voltage to rely on. Im not an electronics expert but this is what it looks like.
                            http://iamnot.azn.nu

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                            • #15
                              Originally posted by Grimm_Reaper38
                              Ok I think I know what you are talkin about, its adjustable from 15-20volts DC. I found this http://web1.applelaptopbattery.com/c...od&ref=SMP-70W sounds similiar will this work ok?
                              If your planning on running an inverter then i don't see any reason why you couldn't plug this in to it an run your laptop from it. I have tried this method as i do have an inverter hooked up in the car, though not for the purpose of running any of the car pc kit, and it picked up an irritating bit of back ground noise from the inverter (not a ground loop related noise, the isolater takes care of that nicely) hence i run on dc-dc converters.

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