How to read PCB symbol for 6 pin push-pull switch?

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  • LearningToRepair
    Member
    • Jul 2020
    • 35
    • *

    #1

    How to read PCB symbol for 6 pin push-pull switch?

    Hi!

    I am a bit confused how to read PCB markings for 6 pin push pull switch. I had problem with my 6 pin push-pull switch on my UT58A multimeter. It did not lock properly. So I decided to replace it. I forgot the orientation of original button. And now I need some help with understanding PCB.

    I learned from google how to identify orientation of push-pull button:


    But I am a bit confused which way PCB expects it. I expected that PCB would have some kind on intent marked on it. But mine has 3 marked instead. I attached the photo of it where I marked each intent with numbers 1-3. I would like to know what each intent means and which way does this PCB expect me to install this button.

    Click image for larger version

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  • sam_sam_sam
    Badcaps Legend
    • Jul 2011
    • 6018
    • USA

    #2
    Re: How to read PCB symbol for 6 pin push-pull switch?

    The way you have the number I would think that this is way it should be put in only because on this it shows the direction and the other two markings would that it a latching switch type

    Although I can not say that I have seen this type of symbol for this type of switching but is a first time for everything

    Comment

    • petehall347
      Badcaps Legend
      • Jan 2015
      • 4422
      • United Kingdom

      #3
      Re: How to read PCB symbol for 6 pin push-pull switch?

      test switch with your meter .or look at its diagram

      Comment

      • petehall347
        Badcaps Legend
        • Jan 2015
        • 4422
        • United Kingdom

        #4
        Re: How to read PCB symbol for 6 pin push-pull switch?

        normally closed will go to where its marked as switch closed on the pcb

        Comment

        • R_J
          Badcaps Legend
          • Jun 2012
          • 9514
          • Canada

          #5
          Re: How to read PCB symbol for 6 pin push-pull switch?

          When the switch is pushed IN, it should connect (2 & 3, 4 & 5 on your meter pcb picture). Pins 1 & 6 are connected together, according to the schematic and as seen in your picture. The switch is in the ON position in the schematic.
          Attached Files
          Last edited by R_J; 02-24-2021, 05:51 PM.

          Comment

          • petehall347
            Badcaps Legend
            • Jan 2015
            • 4422
            • United Kingdom

            #6
            Re: How to read PCB symbol for 6 pin push-pull switch?

            worst that might happen is the switch will operate backwards

            Comment

            • stj
              Great Sage 齊天大聖
              • Dec 2009
              • 30910
              • Albion

              #7
              Re: How to read PCB symbol for 6 pin push-pull switch?

              if thats your power switch then indentation towards the lcd display

              Comment

              • petehall347
                Badcaps Legend
                • Jan 2015
                • 4422
                • United Kingdom

                #8
                Re: How to read PCB symbol for 6 pin push-pull switch?

                it would have been easier to just ignore the silk screen .

                Comment

                • LearningToRepair
                  Member
                  • Jul 2020
                  • 35
                  • *

                  #9
                  Re: How to read PCB symbol for 6 pin push-pull switch?

                  Managed to get it in the proper way.

                  normally closed will go to where its marked as switch closed on the pcb
                  Whats that symbol exactly? Like the symbol that I marked with nr 2 on my attached file? Just asking so I know how to read these in future.

                  Comment

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