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I have a jensen A600HLX the ground wire that goes on the board when i open it, it was screwed down between Q17 and Q16, Q17 was vaporized so i replaced it . where does that ground wire really supposed to screw to?

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  • patrico_777 Apr 26, 2010

    thank you that was helpfull sorry it took so long thank man

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The wire goes to the tab marked "cold ground" or, if you can't find this: use a multimeter set to "ohms" and, put one probe on the chassis and, then: with power removed; look for ground on the board. (full continuity) between the frame and, "board ground" find the reason why Q16 and, Q17 failed as, this indicates a power supply problem that must be fixed first before you power the unit, or, Q16 and, Q17 will put on a fireworks show again.

Posted on Apr 25, 2010

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In my Jensen unit, I simply ran this wire to a ground (I used a screw near the fuse box), and I put a switch on the wire, so I could break the ground contact at will. Jensen calls for a procedure to activate DVD playback. In their instructions, they tell you to select DVD from the option menu, and when the "lawyer screen" comes up (the one warning you to park before you watch a movie), you release the e-brake for 3-5 seconds, and then reapply it. To simulate that with the switch I used, I leave the switch closed (activated), and select DVD. Then I flip the switch "off" for 3-5 seconds, and flip it back "on". This tricks the head unit into thinking I put the e-brake off for a few seconds and then put it back on, and the movie will start. Then I can drive away.

Basically, ground the wire that is used for DVD activation, and put a switch inline on it. Then you can break and reapply the ground in whatever manner is required by the manufacturer of your head unit. If there is no off/on sequence with yours, as there is with mine, simply ground the wire to a screw inside the dashboard and you're done.

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