Marshall 5212 Solid State Amp Hot Burnt Resistor R60

Discussion in 'Building the Classics' started by Timothy L Manning, May 10, 2018.

  1. Timothy L Manning

    Timothy L Manning New Member

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    marshall 5212, trying to find resistance of R60 on circuit board, so hot burnt in middle, red left end and gold on other end of resistor.
    any guide to this will be great,
    Thanks,
    Tim
     
    Last edited: May 10, 2018
  2. anitoli

    anitoli Well-Known Member

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  3. johan.b

    johan.b Well-Known Member

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    [​IMG]
    220Ohm and probably 2w. if it's burnt, there is a big chance the zener (ZD3) is fried too
    j
    EDIT: appearantly we need to know what year your amp is from...
     
  4. ampmadscientist

    ampmadscientist Well-Known Member

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    On the wrong side of the tracks.
    If the resistor is burned, that's the symptom. Not the cause.
    In these amps, the 15 volt zener diode can short out and burn the resistor.
     

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