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Home Forums Product Discussion & Questions BeoGram Cdx blowing internal fuse instantly

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  • #48771
    Kawasakiinit
    BRONZE Member

    Hi guys please can you help.

     

    I purchased my cdx from someone who has recapped it on the power board but it’s blowing the internal fuse(the solder in though hole one) I’ve noticed some of the new caps seem to be the wrong way round with the positive going to ground on the board. Does this matter on this board and would that blow the fuse?

    Sorry I’m a novice trying to learn

    Thanks

    Dave.

    #48772
    Die_Bogener
    BRONZE Member

    Every wrong polarized cap will make a short, even small ones.

    … and if small enough: a very nice BANG!

    #48773
    Dillen
    Moderator

    Capacitors working with negative voltages will often have their positive pin to ground.
    Check before assuming it’s wrong.

    Martin

    #48774
    Kawasakiinit
    BRONZE Member

    Thanks guys

    Really sorry for my lack of knowledge I’m just trying to learn .

    I’ve manged to get a schematic for this power board and indeed the caps are correct as they are .

    Are there any common fuse blowing issues with this unit I should look into . I have today taken all the mosffets ? off the heat sink and am now waiting for my component analyzer although i think they are ok as the board actually doesnt blow the fuse when the other boards are not plugged into it. the plug that does blow the fuse is the one that goes to the disk drive , Any ideas please ??

    thanks again Dave .

     

    ps what is the component that goes from the board where the  audio cables are soldered on to the heat sink (mosfet screw ) googled it but nothing ??

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