Heidelberg SM - 74 feeder not getting on

Discussion in 'Heidelberg Printing Presses' started by shabeer, May 7, 2020.

  1. shabeer

    shabeer Member

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    Please could someone help me to find the below problem that my feeder is not getting on and all my servo motors are not moving ( side lay, front lay and register motors) all the values are blinking. I have buzzer alarm during machine running and on the error page it shows in feeder section.
    I have checked my int test code , on that zsk has error FFF3(mean that zsk timer defective). The machine was not switched on for last 15 days
     
  2. junker1984

    junker1984 Senior Member

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    I'd first recommend reseating (pull away from socket and push back in) all boards.
     
  3. shabeer

    shabeer Member

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    Dear mr.junker.
    Thank you for the reply.

    I have already done your instruction as I have removed all the zsk plugs and install those back. But I will try to do it again to double check.
     
  4. CHOCK

    CHOCK Senior Member

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    Hi sir:

    However if you can NOT fix it , after Reset, remember :

    Please do this following Steps:

    1)test the power supply for the Cpu ( central processor unit) +

    2) Clock for the Cpu in Mhz, Otherwise the Reset will NOT function, and you must repair the electronic board or replace.

    3) clean very well the Edge connectors from All electronic boards ( 80% of failure in electronic system is coming from Edge connector).

    Let me know, sincerely

    Blessing
     
  5. shabeer

    shabeer Member

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    Dear Mr. chock

    Thank you for the timely reply.

    I will try to do the above steps which you had mentioned. And please could you explain me the 2 Nd step. Is there any way to reset the CPU?

    As I read the int test diagnosis, I have found error that ZSK ( mother board) timer defective.

    I will update once I done your instructions.

    Thank you with blessing
     
  6. CHOCK

    CHOCK Senior Member

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    yes, attached is there .

    How to Reset the Cpu.

    Good luck.

    Let me know.

    Blessing
     

    Attached Files:

    PhillipRP and shabeer like this.
  7. shabeer

    shabeer Member

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    Yes thank you Mr. Chock.

    Thank you for the great support and

    I will try it and update to you.

    Thank with blessing.
     
  8. CHOCK

    CHOCK Senior Member

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    OK SIR.

    Blessing
     
  9. MRTYMM

    MRTYMM Member

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    Compact memory dump.
    Turn press off.
    X11
    Put 2 bridges on pins 9-10 & 11-12. Number 1-2 is at the bottom as marked. Bridges are in red.
    Turn press on and let it reboot.
    Turn press off and remove pins.
    Press will lose its input memory and will go into default setting
     
  10. CHOCK

    CHOCK Senior Member

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    Remember you can Reset, However if the power supply +clock is faulty, Will be Not Work!!!
    1)test the power supply for the Cpu ( central processor unit) +

    2) Clock for the Cpu in Mhz, Otherwise the Reset will NOT function, and you must repair the electronic board or replace.

    3) clean very well the Edge connectors from All electronic boards ( 80% of failure in electronic system is coming from Edge connector).
     
  11. CHOCK

    CHOCK Senior Member

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    Great sir

    Blessing
     
  12. MRTYMM

    MRTYMM Member

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  13. CHOCK

    CHOCK Senior Member

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    ok, sir

    Blessing
     
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