MO-4 SEK #15

Discussion in '4-Color Offset Presses +' started by Beguin, Oct 7, 2020.

  1. Beguin

    Beguin Member

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    hi dear elder, To what may this be due.SEK
    #15
     

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  2. CHOCK

    CHOCK Senior Member

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    Hi sir:
    Normally this will happen check please:

    Stack of SEK defective.

    CPU of SEK defective.

    PROM of SEK defective.

    SEK not inserted or cannot be addressed.

    Data and address pattern test of RAM on SEK not possible or
    fault in test.

    Blessing
     
  3. Beguin

    Beguin Member

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    Hi CALE and thank you.

    In DYN test and INIT test SEK does not show what this is due to.

    Thank you.
     
  4. Beguin

    Beguin Member

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    I have changed the SEK card but it's the same.
     
  5. CHOCK

    CHOCK Senior Member

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    1) Look for interface SEK to REK2 defective


    2)) however measure the Power supply , look the schematic diagrams

    3)
    Reseats Boards and components:
    Edge connectors are a common souorce of problems. Power down the system and remove the PC boards. Examine the edge connector
    for contamination and clean with contacts cleaner contacts. Reseat any loose components such as scoketed ICs) . Reseat the
    boards and power up.


    Blessing
     
  6. Beguin

    Beguin Member

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    hi dear elder, what you had recommended we had done but it is always seems thank you.
     
  7. CHOCK

    CHOCK Senior Member

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    please Read carefully: Look for interface SEK to REK2 defective ( is CPU or Microprocessor)

     
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  8. Beguin

    Beguin Member

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    it is the margin alone which does not display when you press the emergency stop button. see the video thank you
     

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  9. CHOCK

    CHOCK Senior Member

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    please Read carefully: Look for interface SEK to REK2 defective ( has CPU or Microprocessor)
     
  10. Beguin

    Beguin Member

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    Hi, I want to thank you I was able to find the failure. God bless us thank you.
     
  11. CHOCK

    CHOCK Senior Member

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    ok sir

    Great Job.

     
  12. MRTYMM

    MRTYMM Member

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    What Is the problem u find
     

  13. Beguin

    Beguin Member

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    the problem was due to a broken ribbon cable.
     
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