Lines/noise in In Dash 7" monitor

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=58290
Printed Date: May 02, 2024 at 6:52 AM

Topic: Lines/noise in In Dash 7" monitor

Posted By: conlyn
Subject: Lines/noise in In Dash 7" monitor
Date Posted: June 24, 2005 at 1:39 AM

i have a 7" in dash pioneer AVX-9000R(brain) and 7000(indash) set up in my gmc typhoon...

i have had the system running for a few weeks now, and since the first day i've had nothing but problems in trying to get rid of the video distorition i get while the motor is running. When i first installed it was the same thing, so i took the crappy wires i had running to my stock radio harness and rewired my tv power and ground to more stable connections in/near my fuse box... well, this didn't help, and after about a week of driving around dealing with this, i got tired of it... and ran both my power and ground in 14gauge form to the back of my truck(rear mount battery) because i had read that that the brain and monitor would be out of sync with different grounds, well, that did shhh. so weeks later brings me to tonight, and this step, my last. I tried 2 different noise filters from the back of old/parts radios i found at a friends house, and still no luck... i'm running out of ideas aside from finding/buying other filters, and that seems kinda pointless right now since neither of the two i tried made any difference at all... and yeah, i tried them both at the connections(pre brain/monitor) and just pre-tv... no luck either way, thanks for any advice, i hope to get this thing working sometime.... it really sucks having music videos look like utter shhh while i'm driving around, not that i stare at them or anything, but the comments form passengers gets me pissy.

Ps: i heard so crap about maybe sparkplug causing it, and as of last week my truck has a whole new IGN. so that can't be it.... And i was also wondering would having my Battery>15 farad Cap>Car system cause this? the wires are run right off the battery terminal and the cap is before the cars electrical system.

Replies:

Posted By: dxav
Date Posted: June 26, 2005 at 11:06 AM

Are you using standard RCAs for the signal? Have you tried 75-Ohm video cable?

DXAV

Posted By: conlyn
Date Posted: June 26, 2005 at 2:21 PM

it's not the A/V side of the connection i'm having the problem with

it has do with the power/ground going to the monitor it's self, because it shows the distortion with or without anything on the a/v side turned on.

Posted By: dxav
Date Posted: June 26, 2005 at 8:50 PM

Conlyn,
So with just power and ground connected (nothing otherwise connected), and the power turned on, you have distortion/static? Have you tried connecting the monitor wires directly to the battery +/-? Make sure there is an inline fuse. Let us know how the picture is. If it is ok, try (carefully!) connecting a A/V source and note the quality.

DXAV

Posted By: MAYHEM_AUDIO
Date Posted: July 07, 2005 at 6:51 AM

conlyn wrote:

i got tired of it... and ran both my power and ground in 14gauge form to the back of my truck(rear mount battery)

-------------
MATT

Posted By: conlyn
Date Posted: July 11, 2005 at 4:49 PM

turns out it is comming from the RGA pioneer cable, i had tried it with the brain disconnected and it did the same thing.

i have tried to ground the case of the brain to a few different points and 2 inline filters, with little resolve, so my next step if i don't figure something out i'm going to bring it to a pioneer specific install shop and tell them to figure it out...

might be my RGB cable its' self, who knows?