SM 74-5P wash-up icon disappeared

Discussion in 'Heidelberg Printing Presses' started by youngBOSS, Sep 4, 2019.

  1. youngBOSS

    youngBOSS Member

    Joined:
    Jun 2017
    Messages:
    38
    Location:
    Accra
    Hello Gentlemen,
    I have a problem with a working SM 74-5P. The icons to enable wash-up for Unit 2 on the CPtronic display has disappeared whiles all other units remains as shown in this picture.
    What could be the cause of this fault?
    Is It software related or an electrical fault?
    Your ideas are welcome please.
     

    Attached Files:

  2. turbotom1052

    turbotom1052 Senior Member

    Joined:
    Oct 2008
    Messages:
    1,044
    Location:
    Vermont
    perhaps the sensor that detects the wash-up tray???
     
  3. youngBOSS

    youngBOSS Member

    Joined:
    Jun 2017
    Messages:
    38
    Location:
    Accra
    I will check that sensor as soon as possible. Thanks
     

  4. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    2,852
    Location:
    Managua,Nicaragua
    Hi sir:
    Please open the door of cpc or cptronic, and depend of the system that you

    have would be Old technology using 7 segments display common cathode or Anode see the attached schematic, can be faulty or burn. Replace or test it.
     

    Attached Files:

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