Question about Pioneer DEH-P80MP CD Player

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Reads dc/dc error @ high volume

When i turn up the radio past half way it reads dc/dc error n wont display anything but that. only way to get it to go away is to power the deck back down

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More than likely you have a bad ground and/or a power supply problem: bad wire connection, bad alternator - but check the radio's ground wire first.

Posted on Nov 22, 2008

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That depends on the make and model of the radio, and the available inputs on the GHC1000. Does your radio have a line output socket? If not, you can generally use the headphone socket to source a signal. Then all you'll need is a cable with a 3.5mm stereo plug on one end and two x RCA plugs at the other - easily available at low cost from an electronics store. The RCA plugs go to a free line input on the Grundig amplifier and the 3.5 mm plug goes into the radio's headphone socket. HOWEVER some radios require a DC return path to detect that there is something plugged into the socket. You Grundig cannot provide this, and if your radio needs it, this method will not work. So hopefully your radio will not need it.....

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HELLO: KENWOOD MARINE STEREO WHEN TURNING UP THE VOLUME ABOUT HALF WAY THE RADIO CUTTS OUT TILL YOU TURN IT BACK DOWN THEN IT COMES BACK ON.


You have a grounded out speaker wire or blown speaker. Disconnect speaker wires at the unit. Make sure the wires are not touching, turn the unit on, then turn the volume back up. If it stays on, it is a wire or speaker. Re-connect one speaker at a time and test. once you find the bad wire/speaker, disconnect the wire at the speaker and test again. This will determine if it's the speaker or wire.

If after disconnecting the speaker wires it still cuts out, check your ground and meter the DC voltage at the power wire. If you do not have enough current at the radio, it will shut off as well. Usually this will happen at about 9.8v dc.

If you still need further help, post a reply/comment and I can help you dig further.

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When purchased, upon starting the car, the radio (manufacture model) volume knob would actually be turning down when you were turning the radio knob up, and it did the opposite if turning the knob up, the...


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