Reverse Camera Interference WHY?

Old Sep 10, 2008 | 12:38 AM
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Reverse Camera Interference WHY?

There may be something wrong with my AVIC-Z1 but the picture from my reverse camera is very dim, the color is very burnt, wavy and static-y and an occasional flicker. I have tried adjusting the connections and the problem remains. I'm wondering if the wiring running along the frame rails is causing interference, maybe the connection is not insulated enough and the fact that the frame is ground?

About 40% of the time the picture is perfect, but the other 60% it's all screwed up, so I think that would eliminate the routing of the wires considering the wires do not move from the frame and the frame does not change in resistance (I would assume). It's something that is dynamic, because it's not always an issue.

Maybe it's a bluetooth interference, wireless phone interference...

It's not the camera, I've bought 3 now, two CMOS and one expensive CCD.
 
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Old Sep 10, 2008 | 06:38 PM
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Anyone?
 
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Old Sep 10, 2008 | 09:38 PM
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Make sure your ground on the frame is clean and straight to metal. You may need to clean it, then scratch some of the surface paint or crap off it. Dont know if that will solve it but its an idea.
 
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Old Sep 10, 2008 | 09:47 PM
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you more have to worry about how its routed up through the dash, and past other modules.

how is the video signal carried? Coax, VGA etc?

see if you can order some more insulated (shielded) wires. or make your own insulation.
 
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Old Sep 10, 2008 | 10:13 PM
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It's RCA cable, it's routed up through the frame, then up by the gas pedal grommet, then into the dash. I just tried your idea msall, to no avail.
 
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Old Sep 10, 2008 | 10:18 PM
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might see if you can get some upgraded RCA's like monster or something.

remember coming behind gas pedal, you have drive by wire so there is a gas pedal position sensor, and a module right there. Anytime you go near network wires (twisted pair) or any module you can pick up RF interference, and stray voltage.

maybe see if there are some twisted pair RCAs online, that would be ideal for this application
 
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Old Nov 28, 2008 | 06:34 PM
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When I installed my D3 I had interferrence problems from the git go. I ended up returning the unit to the place I bought it from but the replacement unit did the same thing.

I was installing the replacement unit with the wiring harness from the first unit so I decided to pull everything out and start from scratch.

When the wiring harness for the first unit was sitting on the seat of the car my wife asked why this little wire was hanging off to the side. It was the ground wire for the backup camera signal.

The connection was crappy at best and with it being such a small wire it was easy to see how it got pulled out ot the harness. I used the new harness and bouble checked the wire.

Everything has worked perfectly for about a year and a half.

Hope this helps !
 
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Old Dec 3, 2008 | 05:30 PM
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Damn, I will definitely look for this wire. I will be looking for a small wire coming out of which harness? Lastly, do you recall the color?

I am fairly certain the directions never said anything about a ground for the reverse cam signal, what gives?
 
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Old Dec 3, 2008 | 07:17 PM
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This is what I wrote in my post . . .

<<I started looking at all the connections I made figuring I did something wrong but what I found was the ground wire on the brown back up camera lead that went into the white connector got cut when they crimped it onto the pin in the connector. It's a very small wire to begin with.>>

If you look at the white connector you will see a brown lead wire and right next to it is a very small black wire that was severed on my harness. It is not a ground wire that you must ground - it is part of the harness.
 
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Old Dec 3, 2008 | 08:22 PM
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I've read your post several times thinking I may be misunderstanding it. The backup camera 12v/ground wires do not connect to the headunit, just the RCA cable for video in. If you are saying there is a ground wire ATTACHED to the the backup cam RCA cable coming out of the harness then I will go check.

From what I gather you are saying there is a ground wire coming out of the Pioneer head units white connector but like I said before the wiring for the backup camera is independent of the head units wiring altogether.
 
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Old Dec 3, 2008 | 08:45 PM
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Look at all of the wires that are in the white power connector. There are very little one next to the bigger ones - check those. All of them have shrink tube on them but if you look close at the connector that where I found my problem.

You might try sticking your hand back there while it is in the reverse mode to see if you make it better or worse.
 
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Old Dec 3, 2008 | 08:52 PM
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Go to this link. You will see the white power connector. Check all the wires in it - especially the small ones. Give them a tug and make sure they are connected.

http://www.avic411.com/forum/viewtopic.php?t=4670
 
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