power filter

Printed From: the12volt.com
Forum Name: Mobile Video, GPS, and Navigation
Forum Discription: Mobile Video Head Units, DVD Players, LCD and TFT Monitors, Navigation, GPS, PS2, PS3, XBox, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=117214
Printed Date: April 29, 2024 at 1:57 AM

Topic: power filter

Posted By: pcr-63
Subject: power filter
Date Posted: October 24, 2009 at 6:56 PM

im working on a 03 navigator, the car had a drop down screen already installed it was a eiger vision I installed a PYLE visor screen that he supplied. I tied into the acc and ground for the drop down that was already there, now when the key is in acc the visor screen is fine but when I start the car there is like a ripple in the movie going across the screen but not in the drop down, will a in-line power filter fix that? I tried moving the acc to a different key hot same thing I tried using a relay on the acc and moving the ground. The strange thing was when I moved the ground for the visor the screen never turned off even wit the ground off. again will a power filter fix the ripple

sorry so long
Thanks

Replies:

Posted By: ckeeler
Date Posted: October 26, 2009 at 10:44 AM

try adding a diode and capacitor to the positive supply line going to the screen like the diagram below.

posted_image

Posted By: pcr-63
Date Posted: November 02, 2009 at 2:23 PM

I dont thinks its coming from the power, I went straight to the battery and used a power filter and the ripple is still there. when I disconnect the ground the visor tv stays on, but with that done if the unplug the yellow rca from the 2 screens its then shuts down, and at that point i re-connec the ground wire it comes back on. I think something is feeding through the rca. Is there a filter for that or do u think I need a video amp.

thanks