Question about Pioneer DEQ-7600 15-Band Car Equalizer

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No sound. I hooked up my DEQ-7600 correctly. All lights work, and controls look to be operating correctly, but no sound output. Tried various input signals - walkman, mp3, old stereo receiver, etc, but no output. Tried running it from a radio shack 12-volt power supply also, but still no audio output at all. Unit looks to be in good condition. Took the cover off, no fuses inside. Is it feasible/worthwhile to have repaired? Any recommendations for repair shops?

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  • stevo442 Oct 12, 2008

    i have a deq 7600 pioneer and i get lights but no display or soung can anyone help?

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I have a boss audio equalizer and the out put channles wont play

Posted on Aug 07, 2009

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If you have not solved the issue yet here is what I ran into. I bought one off craigslist. I found that the conventional Line Level outputs are very low compared to that from a reciever unit. If you have the blue and yellow wires tied together and the unit is connect to PRE AMP outputs then it should work. It will not work with the head phone level from any mp3 player.

Posted on May 23, 2009

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As you have indicated there is no sound at all in the out-puts available.What this could probably mean the out put ic is dead.Another thing to remember is to connect the red positive wire to the standby wire which is mostly yellow in color.

Posted on Aug 27, 2008

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1 Answer

I have a Pioneer DEQ-7600 and every so often I have to tap my dash board in order for the display lights to come on the front of the unit, like it goes in and out every so often, thanks Nick


Nick i believe that you have a simple ground loop problem. To fix that you'll need to run a ground wire from your EQ to the body of the car. (the shorter the wire,the better the ground)

Find the ground wire (black wire) coming out of your EQ. Splice a wire into that wire,and then connect that wire to the black wire coming out of your Head Unit,and that should solve your problem.

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do you have the yellow wire going to a constant power source??

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I'm searching for a visual diagram to show the power hook up on the Pioneer DEQ 7600. I need a description of each wire and how to connect.


go to crutchfield.com and type in your model.on the right side of the screen it lists whats in the box.from there you can print a diagram.

Sep 06, 2009 | Pioneer DEQ-7600 15-Band Car Equalizer

1 Answer

Boss audio


Either the radio is bad out of the box (Very possible with the BOSS brand) or you car has factory amplifiers that need to be turned on. This is aaauming ther sound system played prior to the installation of the new radio. Most vehicles you can power up the amplifiers simply by connecting the BLUE remote turn on wire in the harness, but can get tricky in some vehicles.
Post the year make, and model of your car, and I can shoot you some odds/info about factory amplifiers.

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All the buttons light still on after car shut off


one of your power source wire is connect wrong and giving power when vehicle is off check your power source wiring

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How to change the color display and brighten it up for a Pioneer deq-7600?


Here's a link to the manual in english...

http://akamaipix.crutchfield.com/Manuals/130/130DEQ7600.PDF

I read thru it, and no mention of how to do it. I do believe it can tho.

Jun 07, 2009 | Pioneer DEQ-7600 15-Band Car Equalizer

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