Question about Jensen MP5720 CD Player

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No sound All the lights and workings on the face plate are working. No sound coming out of speakers. I checked all wires, and are still attached. Also no sound when using disc player.

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Re: No sound

It could be that the wires in the harness that go to speaker from stereo are not connecting to the leads on the stereo. If this is the case the wires to speakers are not connecting, but the wires from the power source are still good. Try taking the harness out of the back of the stereo that connects all the wires to the leads. Hopefully your wiring is labeled from the factory. If it is it might say "Left front speaker". Isolate this wire and wiggle it inside the harness back and forth. If it moves even a 1/16 of an inch it may be that the leads are not connecting. You can try jerryrigging it by shoving something in their in hopes that it will hold it in place. You may need to replace the harness.

Posted on Jan 04, 2008

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Blinking red light behind faceplate now a solid red light.

You have a shorted power amp output circuit.

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Radio/CD player has power -gets no sound

unplug the radio harness and check for ground on all the speaker lead's. if there is ground on a speaker wire then there is a problem on that particular speaker and if you disconnect all the other speaker should work if not then i would assume the actual unit is defective

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No sound

you simply have a speaker shorting in your car. Either an old speaker with a bad voice coil (short) or a speaker who's contact(s) are touching metal. This type of short or grounding will cause the internal audio amplifier to shut off to protect the radio's output circuit. To diagnose which speaker is the culprit, you'll need to disconnect all speaker leads from the radio and one by one re-connect them until the output shuts down again. The safe way to check is with a voltmeter. If you connect one side of your voltmeter to ground and test each speaker wire lead for continuity, you'll hear an audible "beep" whe you find the grounded wire/contact. A professional car audio shop can diagnose this for you if you're still having difficulty. Hope this information was helpful.

Sep 28, 2008 | Pioneer DEH-1800 CD Player

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My l/r channel will not work

With the radio on u will need to push audio button it will change to something different on the face push until speaker balance comes up & then push butons below it left or right to balance each side of speakers. For me it was the left speakers that i needed to balance good luck John

Jun 06, 2008 | Pioneer DEH-1600 CD Player

1 Answer

Nothing works

try taken face plate off if detachable then put back on sounds like the face plate clip might be weak and or missing spring inside
but if face plate stays attached just need to clean and put back on right to deck no easy way to say that

May 09, 2008 | Pioneer DEH-P850MP CD Player

1 Answer


check all your fuses and then take the face plate off and push the reset button. if that doesnt work just check the wire connections sometimes if the wires dont have enough contact they want work. i had that issue when i upgraded the speakers in my jeep the connections were not good enough.

Mar 02, 2008 | Virtual Reality VRCD500-SDU CD Player

1 Answer

Same Prolbem as the other guy

Do you get sound when you use the radio? If so, the blue wire from the back of the radio needs to be disconnected and you need to use the blue/white wire instead.

If that doesn't work, try connecting either a test speaker or one speaker at a time. Your problem could be a short in the wiring - if the (+) wire to a speaker is touching the (-) wire, the deck will cut out all sound to keep itself from overheating. Let me know if you need more help.

Oct 12, 2007 | Jensen MP5720 CD Player

1 Answer

No sound through speakers

What type of vehicle is it in? Is there a blue/white wire connected?

Sep 16, 2007 | Jensen MP5720 CD Player

2 Answers

My stereo is flashing the work "PROTECT" across the front

In a Kenwood deck, "PROTECT" usually means that one of the speaker output wires is shorted. The first thing to do is pull the deck and inspect the wiring at the back, making sure there aren't any pinched or exposed wires. If a speaker wire is pinched against the deck chassis, or bare wire is touching dash metal, it can cause your problem. If you don't see anything obvious, disconnect all speaker wires from the deck, then turn it on. If it still flashes "protect", then you have a defect in the unit. If not, then re-connect the speakers one at a time until you find the one that causes it to go into Protect mode. Usually if you don't find a pinched or shorted wire behind the radio, the problem can be found at the speaker itself. This is especially common if you've installed after-market speakers; if a speaker terminal connection has come loose and is now touching the speaker basket or mounting surface, it will shut down the deck.

Jun 07, 2007 | Kenwood KDC-MP5032 CD Player

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