Question about Car Audio & Video
Posted by Anonymous on
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Posted on Jan 02, 2017
Yo, I've got the perfect solution to your problem. Pull out the head unit from your dash. Then, remove the wiring harness carefully from the unit. Now, push in the yellow power wire (even jiggle it a little) making sure it's tightly snug the small port of the wiring harness. Then, plug the harness back into the unit and try turning it on. I've found that the wires come lose easily on this unit. hit me back up at Darkintel74@aol.com.
Posted on Mar 28, 2008
SOURCE: light problem with x400gbt
You have to un hook the orange dimmer wrie. It's the solid orange wire. I tried to figure this one out for about 3hrs and this is the problem solver.
Posted on Oct 07, 2008
Sounds like the colorburst frequency is off.
I don't however have a schematic for this board
However somewhere not too far from that video out will be the circuit that generates the video.
This will usually be a 3.579545 MHz crystal or oscillator.
Close to this crystal will be an adjustment that usually looks like a Phillips screw head (very small though, and encased)
This adjustment will need to be tweaked either clockwise or counterclockwise until the color syncs up.
If you can provide good resolution snaps of the circuit board near the video out, or even better, near the colorburst crystal / oscillator pack then I can probably tell you where the adjustment is.
It's best to get a 12V source (like maybe a PC power supply or battery etc) to run it on a bench while making the adjustment. That way you can adjust til you lose color in both directions, and make your final adjustment as in the middle of where it loses sync in both directions.
Posted on Apr 11, 2011
Sounds like going over the tracks might have knocked a wire lose behind the dash. The only way to know would be to take out your head unit to reveal what's behind it. Make sure all the cables are securely fastened and it should work again.
Posted on May 03, 2011
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