Announcement

Collapse
No announcement yet.

lines on screen due to subs?

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • lines on screen due to subs?

    I have a very wierd problem. When I turn my subs on my screen gets wierd white horizontal lines on it. When they are off its perfectly fine. Ill give ya a run down on my setup to help solve the problem.
    I have a 25 watt RMS 2 channel infinity amp for the normal speakers and tweeters. I have 1 12' sub with a 500 watt PEAK amp. My normal speakers are ran on left and right in parallel. My speaker wire, and my 10 guage power wire run on my right side. My s-video for my screen, my USB, my power on for the pc, and my inverter and sub power switches are on my left side. All my power is run in parallel, and I have the shortest possible ground. BTW my power on for my 25 watt amp is run off the power inverter's 12 volt line directly so when I turn on my inverter it comes on. My sub's power on is ran off the same line but on a toggle switch. Any help would be apreciated.
    Carputer runing Media Engine

    kicker mids and highs, on a eclipse amp

    10" lightning audio subs on a kicker, soon to be replaced with MA audio comp subs!

  • #2
    Sounds like a grounding issue of some sort. Is your grounding point filed clean of paint and what not?
    Christmas Car Project 2008

    ArrowDash Skin Worklog

    Comment


    • #3
      yes, I made sure of that with a dremel.
      Carputer runing Media Engine

      kicker mids and highs, on a eclipse amp

      10" lightning audio subs on a kicker, soon to be replaced with MA audio comp subs!

      Comment


      • #4
        Have you tried to run your sub amp directly to the battery?

        Comment


        • #5
          Yah hooked up directly to my 10 guage.
          Carputer runing Media Engine

          kicker mids and highs, on a eclipse amp

          10" lightning audio subs on a kicker, soon to be replaced with MA audio comp subs!

          Comment


          • #6
            With nothing else on the 10 gauge? Just the sub amp. Try isolating your power sources.

            Comment


            • #7
              Do you see lines with or without music playing? Have you tried disconnecting the inputs to the amp but having it powered on? Do the lines flicker or stay in one place or roll up or down?

              Comment


              • #8
                i had the same problem, tried power you screen from a different outlet maybe a cigrette lighter.

                Comment


                • #9
                  its kinda flickers, it really doesn't matter if there is music playing or not. And no all my power to my carputer, amp, and sub amp is on the 10 guage. My screen is the in dash typ and is wired in the dash.
                  Carputer runing Media Engine

                  kicker mids and highs, on a eclipse amp

                  10" lightning audio subs on a kicker, soon to be replaced with MA audio comp subs!

                  Comment


                  • #10
                    how is the screen earthed?

                    im guessing, via the chassis of the unit to the metal of the car, and i would assume also via the earth wire where does the earth wire go? to the same point as the amp etc?

                    if it goes to the amp try earthing it to the metal under the dash.

                    also do you get any engine whine thru the speakers with your lights on when the whole system is running?

                    Comment


                    • #11
                      No there is no noise in my system whatsoever, it sounds great!
                      My screen is grounded though my old stereo power wires, so im assuming chassis ground.
                      Carputer runing Media Engine

                      kicker mids and highs, on a eclipse amp

                      10" lightning audio subs on a kicker, soon to be replaced with MA audio comp subs!

                      Comment


                      • #12
                        the screen may be getting an earth thru the video cable shield wire.

                        try running a new earth wire for the screen, try an earth point close to it first since that easier, then if that still dosnt work run a wire to the earth input terminal on the amp.
                        since that may be easier to get to in theory than your normal earth point and for testing it should suffice.

                        of course you could just get a power noise suppressor/filter and put it on the screen.
                        those small black boxes you often get on car stereo's power wires.

                        if that dosnt work you could try putting a ground lift box on your RCA cables to the amp

                        http://www.radioshack.com/search/ind...0isolator&sr=1

                        Comment


                        • #13
                          I had a similar issue when I was running my system in "beta" mode. I'm willing to bet your 10 guage power wire is too small to power all your components.

                          I had a 4 gauge power wire, but while I was testing and setting up the system, I quickly wired the sytem with some 12 gauge from the splitter block.

                          The result?

                          My screen would flicker anytime to music was turned up past approx 5%.

                          When I permanently wired it with 8 guage the problem went away. 12 guage was "starving" the puter for current and the video card was having difficultly keeping up. Keep in mind, my system was mostly 4 guage except for a few 2 foot 12 guage runs from the splitter block to the amps and the 'puter. You're running 10 guage all the way from the battery if I read your post correctly.

                          I'm not saying that's your problem, but if you're powering everything off a 10 gauge that's around 20-25 feet long.................

                          Well.......................




                          Also, what guage is your ground wire? It should be at least equal to the size of your power supply wire.
                          For once you have tasted flight you will walk the earth with your eyes turned skywards, for there you have been and there you will long to return.
                          Leonardo Da Vinci

                          Comment


                          • #14
                            OMG I just thought of something! I decided to save money and run a few things through one cat 5 cable. Cat 5 is unshielded. My composite to the screen runs through that cable. That may be it, what do you guys think?
                            Carputer runing Media Engine

                            kicker mids and highs, on a eclipse amp

                            10" lightning audio subs on a kicker, soon to be replaced with MA audio comp subs!

                            Comment


                            • #15
                              A few things?

                              What few things are we talking about here?
                              For once you have tasted flight you will walk the earth with your eyes turned skywards, for there you have been and there you will long to return.
                              Leonardo Da Vinci

                              Comment

                              Working...
                              X