Heilderberg CPTRONIC GTOZ-S gets stuck when starting (only shows logo)

Discussion in 'Heidelberg Printing Presses' started by PraisedBacchus, Mar 30, 2025.

  1. PraisedBacchus

    PraisedBacchus Member

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    Hi to everybody.

    I need help with this printing.

    When we turn it on, it gets stuck at the logo and doesn't do anything else. Also, looking for the ZSK, it has 3 leds, and we see all of them are on.

    The board had previous reparation. It's a ZSK 00.781.3385/01
    Thanks for the answers. Untitled.png IMG_20250213_095153439_AE.jpg IMG-20250210-WA0013.jpg
     
  2. Adil

    Adil Senior Member

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    Hi sir try to reset the zsk board
     
  3. PraisedBacchus

    PraisedBacchus Member

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    How can I do that?
     
  4. junker1984

    junker1984 Senior Member

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    Unplug and plug back in.
     
  5. PraisedBacchus

    PraisedBacchus Member

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    Oh, we did that in 3 opportunities, didn't work
     
  6. junker1984

    junker1984 Senior Member

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    And, are you certain the piggy back board is fully seated, and pins are not bent?
     
  7. Adil

    Adil Senior Member

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    Normally There is a procedure to do that
     
  8. Beguin

    Beguin Senior Member

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    Hello dear sir, please check the 3.6 battery.
     

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  9. PraisedBacchus

    PraisedBacchus Member

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    That was a battery? Didn't know, thank you for that. It has 2.96 volts.
     
  10. PraisedBacchus

    PraisedBacchus Member

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    Yeah, we're sure about that, because every port conection can conect to the board
     
  11. Beguin

    Beguin Senior Member

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    Please change the battery, I think that's your problem. Thank you, good luck.
     
  12. PraisedBacchus

    PraisedBacchus Member

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    Sorry, I didn't test it well, it has 2.96 V
     
  13. PraisedBacchus

    PraisedBacchus Member

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    I was reading the malfunctions book, and it says that the 3 LEDs I mentioned means the following:

    Left to right
    H2 (red): "Ready to run"
    H3 (green): "Not ready: press"
    H4 (green): "No ready: water/pneumatic system"

    All of them are always on when we turn on the printing machine, when they say the 2 green must be blinking.

    Does this implies something to the start up?
     
  14. PraisedBacchus

    PraisedBacchus Member

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    Also, they used another board with the same EPROM to test the printing machine, and as they told me, it worked. So, because of that I think the problem is the ZSK.

    What do you think?
     
  15. Beguin

    Beguin Senior Member

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    So please change the ZSK but have you tested the ZSK in another machine? It says that your ZSK has not been repaired properly. In the worst case, please change it. Thank you, good luck
     
  16. PraisedBacchus

    PraisedBacchus Member

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    The thing is that we are trying to save the actual ZSK, because it's cheaper than buying another one
     
  17. PraisedBacchus

    PraisedBacchus Member

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    It was working without problems until it had the turning on problem
     
  18. PraisedBacchus

    PraisedBacchus Member

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    I tested the power supply (X3) and this is what it should be there. IMG-20250331-WA0093.jpg IMG-20250331-WA0095.jpg
     
  19. PraisedBacchus

    PraisedBacchus Member

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    Where it should be 5 vol, the voltmeter shows me 4.5/4.6 volts, is that okay?
     

  20. piri

    piri Member

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