Question about Sony CDX-F50M CD Player

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No power to unit 10 amp fuse checked and replaced

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Hi,

To my knowledge, it would take two types of B+12 supply to turn on the unit; a constant/always on +12 on the yellow wire and a switched B+12 on the red wire (such as from the ACC terminal of the IGN switch.

If both B+s above are present and the grounding (black wire) has been verified to be connected to the chassis/ground, then it is an internal fault of the Sony CDX-F50M. This of course require that the unit be un-installed and diagnosed/check/repaired.

Absence of any of the two B+s would require tracing where the supply is not present. A DVM wold be handy for the check.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Posted on Jul 16, 2008

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