Question about Pioneer CDJ-500II CD Player

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Internal fuse blows as soon as transformer switched on.

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  • Scott Frye
    Scott Frye May 11, 2010

    HI...
    Does the fuse blow if you disconnect all the cables going to other assemblies..like the CD drive, front panel etc?
    You might be able to narrow down the trouble by taking things ":out of the circuit"

    There are some folks online who sell replacement parts for that player


  • Rob
    Rob May 11, 2010

    Is there an interal power supply board that converts 120VAC to something Like 12-16VDC in this thing... And then the 12VDC is tapped onto a mainboard?



    If so, check the power supply board for bad components, and check the reverse-polarity diode on the mainboard, if any.

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If the player have been dropped once, it could be a broken circuit board as the transformer sits in between two boards and the mounts for it will bend easily. Or the voltage selector switch on the back are in the wrong position.

Posted on Apr 07, 2009

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