hello need help in multisim

Discussion in 'Homework Help' started by saltenis, Dec 17, 2012.

  1. saltenis

    Thread Starter New Member

    Dec 17, 2012
    13
    1
    Hello, i got Course work i made alot work, and now can't fix small problem in digital clock. i made didital clock with multisim. sec-working good; min-working good; but hours- bad

    How to solve this problem?

    If need work i can send in pm just msg here
     
    Last edited: Jan 6, 2013
  2. absf

    Senior Member

    Dec 29, 2010
    1,493
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    I see that your "d" and "f" segments of U8 are connected to Vcc..

    Why?

    Allen
     
  3. saltenis

    Thread Starter New Member

    Dec 17, 2012
    13
    1
    In photo was connected, so i connect same, i wery bad in multisim. Its not me own work. I will send you all work in pm. Look if you have time.

    Andrius
    Saltaitis
     
  4. saltenis

    Thread Starter New Member

    Dec 17, 2012
    13
    1
  5. saltenis

    Thread Starter New Member

    Dec 17, 2012
    13
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    problem solved with digs, but got other problem after 59min hours dont go up
     
  6. absf

    Senior Member

    Dec 29, 2010
    1,493
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    Unable to open file with .ms11 extension. Sorry....

    Could you convert to .png or .jpg and post it here?

    Allen
     
    saltenis likes this.
  7. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
    6,357
    718
    Post an image of your schematic again. Where you are now having problems with the minutes rolling over to hours.

    Answers won't be given in PM/email, as they are supposed to help others solve their problems without the need of creating a new thread. Though creating a thread isn't a bad thing, having a few to reference now and again helps as well.
     
    saltenis likes this.
  8. saltenis

    Thread Starter New Member

    Dec 17, 2012
    13
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    too hard idk how
     
    Last edited: Jan 6, 2013
  9. saltenis

    Thread Starter New Member

    Dec 17, 2012
    13
    1
    other problem after 59min hours dont go up PLS Some1 help?
     
  10. absf

    Senior Member

    Dec 29, 2010
    1,493
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    I downloaded your schematics. Cropped it and sharpened it and this is what I got. Everything was so blur and the details were gone. How can any one help you?

    Cant you post a picture better than that?

    Allen
     
    saltenis likes this.
  11. saltenis

    Thread Starter New Member

    Dec 17, 2012
    13
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    SOZ its wery hard


    And here block all block same
     
    Last edited: Jan 6, 2013
  12. absf

    Senior Member

    Dec 29, 2010
    1,493
    372
    What did you find out so far trying to solve the puzzle? Since this is a homework question, I cannot give you the answer straight but just can give you some clues....

    1. Does the 59 seconds step the unit minute correctly?
    2. Check the wiring differences between U11 and U14. Compare them carefully and reason out why they are connected like that.

    Allen
     
    saltenis likes this.
  13. saltenis

    Thread Starter New Member

    Dec 17, 2012
    13
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    1. Does the 59 seconds step the unit minute correctly?

    yes all correcly after 59 sec, 1min and timer doing until 59 min and reseting

    yes i know u11 and u14 i trying make same system on hrs but don't work.

    why they are connected like that?
    in other conections timer not working

    i can tell more abuot wires
    if cut u14 INA sec go until 09 and reseting
    if i cutt u14 INB min go until 19 and after 19 00 so i can't cut this wire
    if i cut u14 R01 min go until 60 and more (may work with this wire?)
    if i cut u14 R02 min go until 70 ;(and may with this wire)
    And me opinion need one more chip-scheme betwen u11 and u14
    ---------------------------
    U11
    wire INA if cuting sec go until 09
    INB if cut go until 19
    R01 sec go until 80 if wire cuted
    R02 sec go until 80 if wire cuted
    ---------------------------
    what GDN function i dont know
     
    Last edited: Dec 19, 2012
  14. saltenis

    Thread Starter New Member

    Dec 17, 2012
    13
    1
    Problem solved big thanks for helping thanks for clues in puzzle;] I'm excited and wery happy.
    HAPPY Happy Christmas and new years

    Saltenis :)

    big thanks this forum and all member ho helped me :)
     
    absf likes this.
  15. absf

    Senior Member

    Dec 29, 2010
    1,493
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    I am glad that you solved the problem. I saw your reply 2 hours after you post it. But I held back answering you and gave you more time to think about your problem.

    I am sure you'll be able to solve it and the clue I gave should be just enough....

    Now you can enjoy the fruit of accomplishment and excitement as you did it yourself.

    Merry Christmas and Happy New Year.

    Allen
     
  16. Georacer

    Moderator

    Nov 25, 2009
    5,142
    1,266
    In response to a mail I got from the OP:

    We do not delete posts and threads on demand of the users. What you post online stays online unless there's a good reason not to.

    As you sought help from our forum for a problem of yours, your thread will help others solve their own problems if they come to us. These include your colleagues as well. You are not the only one entitled to the responses of the AAC members.

    AAC is a social network and society requires you to give after you have been given.
     
  17. saltenis

    Thread Starter New Member

    Dec 17, 2012
    13
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    removed... from forum
     
    Last edited: Jan 6, 2013
  18. saltenis

    Thread Starter New Member

    Dec 17, 2012
    13
    1
    removed... from forum
     
    Last edited: Jan 6, 2013
  19. Georacer

    Moderator

    Nov 25, 2009
    5,142
    1,266
    I believe you when you say that you worked hard to present those circuits. But the fact is that you asked for help and now your project has content that has been produced by the AAC community.

    Would it be fair if part of your grade was accredited to us? Would you admit to your professor that your problem was partially solved by another person over the internet? Has that other person any reason not to post his contribution to your project on this site?

    These questions might give you an idea of why we don't unmount threads after they are answered.
     
  20. saltenis

    Thread Starter New Member

    Dec 17, 2012
    13
    1
    removed... from forum
     
    Last edited: Jan 6, 2013
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