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  1. #1
    Master Technical Support
    Join Date
    Nov 2014
    Location
    Phoenix, AZ
    Posts
    26
    Rep Power
    12

    Sharp MX-6070V with the COVID Curse

    This MX-6070V has been idle for several months, I guess suffering from COVID. Customer fired-up and getting a L4-35 fan motor trouble. Fan works in diagnostics...any thoughts before ordering the PCU?
    L4-35 Fusing cooling fan R trouble


    Trouble detection PCU
    Cause
    Fusing cooling fan trouble.
    PCU PWB trouble.
    Connection trouble of the connector and the harness


    Check & Remedy Use SIM6-2 to check that the fan is actually rotating.
    Replace the fusing cooling fan.
    Replace the PCU PWB.
    Check connection of the connector and the harness.

  2. #2
    Field Supervisor 500+ Posts
    Sharp MX-6070V with the COVID Curse

    copiertec's Avatar
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    Jan 2016
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    Centereach, L.I. New York
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    Re: Sharp MX-6070V with the COVID Curse

    LOL... COIVID, I wish it was that easy to make a new sale! Searched the site could not find any bulletins pertaining to your code. Maybe a new fan? before PCU? I know it works in diagnostics, but maybe there is a little drag on the motor possibly?

  3. #3
    Senior Tech 100+ Posts
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    Nov 2016
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    Bremen
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    Re: Sharp MX-6070V with the COVID Curse

    Hi

    Sharp Germany:

    Phoenix series / feedback from the field:

    - What can be a possible cause for the error display L4-35 be?
    - Paper clip on the DSPF PCB
    - L4-35 display although the "Fusing cooling fan" is OK.
    - Short circuit on DSPF-PWB causes this error message.

    Response level TPM feedback:
    In one case there was a paper clip on the DSPF-PWB, which caused this error display.
    Removing the bracket from the circuit board fixed the error.

    best regards from Germany

  4. #4
    Master Technical Support
    Join Date
    Nov 2014
    Location
    Phoenix, AZ
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    12

    Re: Sharp MX-6070V with the COVID Curse

    Thanks all. Will keep you informed.

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