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Fade F to R not working on Sony CDXF7000

I bought this truck (2002 Dodge) used with this radio already installed. The sound is balanced evenly between the front and rear speakers when the fade selection is at either the F (front) or the R (Rear) setting. In the middle of those two settings (0) I have hardly no sound. The balance left and right works properly. I checked the speaker wiring with the installation instructions and it appears to be installed correctly. I also tried re-setting the unit and that made no difference.

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Hi, To my knowledge, this head unit (Sony CDXF7000) uses individual 52 watts amplifier (X 4) whose output to the speakers require that none of the speaker wires be grounded or crossed/shorted. Please check the speaker wiring with the use of an ohmmeter (or a multi tester) with all the speakers temporarily disconnected. Verify that none of the 8 wires reads 0 ohms to body/chassis ground or to any of the other wires. As you have checked the wires area: front left > + red & - white/black stripe; front right> + gray & - gray/black stripe; rear left > + green & - green/black stripe; rear right > + purple & - purple/black stripe. Rewire should it be necessary. If the wiring fully checks out, it may be that you have a fader component failure inside the unit (though honestly rare). You can also check if there is no bridging modifications done; converting your 4 amp-4 speakers original design to a bridged 4X52=2X100watt amp to 4 speakers paralleled to 2. Another area you can check/try is by varying the DSO settings - 1,2,3,off. Hope this be of some help/idea. Post back should you need additional information. Good luck and kind regards.

Posted on Sep 30, 2007

  • Louie  Role
    Louie Role Sep 30, 2007

    Oopps, should read >

    front left > + white & - white/black stripe;



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