Question about Pioneer DEH-P840MP CD Player

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RADIO GETS POWER BUT IT DOESNT TURN ON

I got this radio a couple of weeks ago from a friend who had it on his car, he upgrade it to a new pioneer head unit so he gave me this one when a tried to connected it wouldnt turn on. I put a tester on it and everytime a touch the chassie of the radio it gives me a reading of positive energy where can i search for the short

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All car radio as far as I worked with have a body which is the negative(ground) of the unit..To test this unit, apply a negative(ground) to the body and a positive to the red wire, remember there is also another wire which is orange and either the red or the orange one is responsible to store all your channels and settings...So just for the sake of testing combine the red and orange one together and apply a live wire on it while you have a -ve on the body of the unit.If it does not work then check fuse at the back..be careful not to allow any wire to cross over as this may blow off the ICU.

Posted on Jun 25, 2009

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Posted on Jan 02, 2017

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