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  1. #1
    Field service tech. 100+ Posts Froota's Avatar
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    C4-00 on Sharp MX-2310

    Hello,

    We have some trouble with error code C4-00 on a Sharp MX-2310.
    We already checked if this could be solved by replacing the PTC, but still having the code after replacing twice the unit.
    After this we also checked the switch 8 bit 3, in sim 55-1, but without result. Also the contact from the PTC with the harness is not bad.
    Resetting the maintenance count, and also the trouble reset (sim 14) doesn't give any solutions.

    There is a modification on the ptc holder of a MX-2600 relating to similar problems, but the engine is very different to this one.
    Also no exceptions on the 1st and second transfer unit.

    Is this problem known to someone?

    Kind regards,

    Froota

  2. #2
    Legendary Frost Spec Tech 2,500+ Posts
    C4-00 on Sharp MX-2310

    Akitu's Avatar
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    Re: C4-00 on Sharp MX-2310

    From the manual:

    PTC trouble (TC high voltage trouble)

    PCU
    The PTC unit is not installed properly.
    /Trouble.
    The primary transfer unit is not installed properly./
    Trouble.
    The secondary transfer unit is not installed properly./
    Trouble.
    High voltage TC PWB trouble.
    PCU PWB trouble.
    Connection trouble of the connector and the harness.

    Replace the PTC unit.
    Replace the primary transfer unit.
    Replace the secondary transfer unit.
    Check disconnection of the high voltage TC PWB
    connector./Replace.
    Replace the high voltage TC PWB.
    Replace the PCU PWB.

    You say there's no problem with primary or secondary transfer, so have you checked the HVT PWB or the PCU PWB?
    Cthulhu for president! Why settle for the lesser evil?

  3. #3
    Service Manager 10,000+ Posts
    C4-00 on Sharp MX-2310

    JustManuals's Avatar
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    Lightbulb Re: C4-00 on Sharp MX-2310

    This Parts & Service Manual can now be purchased for $12.77 and downloaded immediately after payment from:


    Just Manuals, The Internet's largest selection of manuals ~ Instant Downloads


    Paul@justmanuals.com

  4. #4
    Senior Tech 250+ Posts spanky's Avatar
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    Re: C4-00 on Sharp MX-2310

    See atteched bulletin
    Attached Files Attached Files

  5. #5
    Field service tech. 100+ Posts Froota's Avatar
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    Re: C4-00 on Sharp MX-2310

    Quote Originally Posted by Akitu View Post


    You say there's no problem with primary or secondary transfer, so have you checked the HVT PWB or the PCU PWB?

    The high voltage TC PWB did the trick.....

    Thx for the support!

  6. #6
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    Re: C4-00 on Sharp MX-2310

    That fixed it for me too, on two machines now

  7. #7
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    Re: C4-00 on Sharp MX-2310

    Quote Originally Posted by Froota View Post
    The high voltage TC PWB did the trick.....

    Thx for the support!
    Please can i get the picture of what is High Voltage TC PWB, i am new in repairs but i used the machine,

  8. #8
    Senior Tech 250+ Posts
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    Re: C4-00 on Sharp MX-2310

    there is also a bulletin about changing the plastic holder for the pwb to spread them further apart to prevent arcing and electrical noise leading to failure. Its a good idea to replace both anytime you have this issue....

  9. #9
    Trusted Tech 50+ Posts ridgemill's Avatar
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    Re: C4-00 on Sharp MX-2310

    C4-00 can be either faulty PTC, faulty TC PWB, or faulty clutch.

    See below tech reports.
    Attached Files Attached Files

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