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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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Re: Fade F to R not working on Sony CDXF7000

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

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