sm74-2p problem

Discussion in 'Heidelberg Printing Presses' started by osamah, Jun 28, 2020.

  1. Tuong huu quyen

    Tuong huu quyen Member

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    Dear Sir
    when i turn on the power ,the main screen always shows the words HEIDELBERG
    Hope you guidance
    thanks you
     
    M.K PASHA likes this.
  2. member 18943

    member 18943 Previous User

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    Make reset to ZSK one more time or two
     
    MRTYMM likes this.
  3. CHOCK

    CHOCK Senior Member

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    Hi sir
    Could you explain this, please?
     
  4. DORIL CASTILLO

    DORIL CASTILLO Member

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  5. DORIL CASTILLO

    DORIL CASTILLO Member

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    Dear Mr. Shock I read your posts on how to reset the cpu of the zsk board I need your support to reset the electronic one that helps me, it can't understand your reset scheme, I attach information about the microprocessor and image of the zsk.
    very grateful for your support
     

    Attached Files:

  6. CHOCK

    CHOCK Senior Member

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    please look carefully the Pins schematic in the Datasheet, the PIN= RESET + PIN =GND or Ground.

    That is .

    However as I did explain you befores: Test the regulated power supply in the terminal Vcc for CPU in tolerance + 5Vdc + CLOCK or CLK pin

    Blessing.
     
  7. Adil

    Adil Senior Member

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    Please do it simple
     
  8. Adil

    Adil Senior Member

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    You dont need to do all that , on zsk board ghere is X11 plug try to short circuit in the same time the 9_10 pins and 11_12 .
    Turn on again the machine and the issue will be done
     
  9. DORIL CASTILLO

    DORIL CASTILLO Member

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    Dear Mr. Chock, I have received your answer to reset the zsk board cpu, but I have another question, the jumper according to the image that I attached has to be in that position or removed at the time of doing the reset.
    Thank you and waiting for your kind response.
    Greetings
     

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  10. CHOCK

    CHOCK Senior Member

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    Sir if you remove the jumper at the same time, the jumper, YOU WILL NOT MAKE THE RESET.

    In short, you will have the jumper connected to ground in order to RESET , must be executed.

    I strong recommend you, as i did explain before : 1) test the regulated power supply in Vcc +5vdc + CLOCK in Mhz!!!, OTERWISE the RESET WILL BE FAIL, AND INEFFECTIVE!!!
     
  11. DORIL CASTILLO

    DORIL CASTILLO Member

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    Dear Mr. Chock, according to the attached image, the position of the jumper is it in the correct position? the electronic that is seeing it is not sure if it is the correct position.
    waiting for your kind reply.
    blessings.
     
  12. CHOCK

    CHOCK Senior Member

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    Yes Sir, is in the correct position!

    Remember this is a secret , developed by me, for to RESET any CPU or Microprocessor!
     
  13. DORIL CASTILLO

    DORIL CASTILLO Member

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    Dear Mr. Chock, very grateful for your support, we are going to execute your instructions, hopefully it will be the solution.
    blessings!!!!
     
  14. CHOCK

    CHOCK Senior Member

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    OK, remember Test the Regulated power supply ++Clock of CPU!

    Great1

     
  15. Adil

    Adil Senior Member

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    Please sir do that and your issue will be done

    Switch off the machine ،do this procedure for 30 seconde carefully and switch on the machine again

    Good luck
     
  16. Adil

    Adil Senior Member

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    Remember at the same time .
    Put jumber on 9_10 and 11_12
     
  17. DORIL CASTILLO

    DORIL CASTILLO Member

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    Mr. Adil, thank you for your recommendation on the reset through X11. I send you a photo to help me identify pins 9-10 and 11-12.

    thanks for your support

    kind regards
     

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  18. Adil

    Adil Senior Member

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  19. CHOCK

    CHOCK Senior Member

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    Fix it Sir
     

  20. Adil

    Adil Senior Member

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    I think it s ok , but when people fix the issue normaly must send a message to confirm or to thank the person who give him the solution .
    Good luck
     

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