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xerox 8850/510 power supply defect

Discussion in 'Power Electronics' started by aakdag, Apr 1, 2021.

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  1. aakdag


    Mar 13, 2021

    There is a Xerox 8850/510 brand printer. LL-7F error exists. I detected deformation in bridge diode legs on AC Module. I ran it after cleaning it thoroughly, the fault still continues. But this device was repaired by someone else before me. LM741 is installed instead of LM7372MR (U10 coded) OPAMP. I can not find LM7372MR in Turkey. I will order from abroad. Could the cause of the LL-7F error be LM741?

    I will be grateful to you if you could help me about this problem.

    Best regards.

    Abidin AKDAG
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    Nov 17, 2011
    Moved to new thread.
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