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    #1

    no 3v and 5v section voltage reading

    Hi my board is HUSK MB 11309-248.4TU05.021

    The board is plugg and consuming 13 milliamp
    measuring the 3v coil no reading and the 5v coil no reading


    Ive measure the pins in PU4103 ( RT8223M)
    1- NO READING
    2- NO READING
    3- 4.4V
    4-NO READING
    5- NO RADING
    6- NO RADING
    7-3.3V
    8- 5V
    9-19V
    10- NO RADING
    11-3.3V
    12- 3V
    13-
    14
    15
    16-4.4V
    17-3.3V
    18- NO READ
    19-5V
    20- NO READING
    21-2V
    22-2V
    23-NO READING
    24- 5V

    i really need how to identify if the PU4103 is faulty or not
    Last edited by kalilinux25; 01-27-2020, 03:05 AM.
    Tags: None
    #2
    Re: no 3v and 5v section voltage reading

    Double check your pin numbering, it doesn't match with the datasheet.
    OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

    Comment

      #3
      Re: no 3v and 5v section voltage reading

      sorry

      1- 5V
      2- NO READING
      3- 2V
      4- 2V
      5- NO READING
      6- 5V
      7- NO READING
      8- 3.3V
      9- 4.4V
      10- NO READING
      11-
      12
      13
      14-3V
      15-3.3V
      16- 19V
      17-5V
      18-3.3V
      19- NO READING
      20-
      21
      22-4.4V
      23-
      24-

      ALL BLANK ARE NO READINGS

      SORRY I didnt notice

      Comment

        #4
        Re: no 3v and 5v section voltage reading

        Your readings are still wong as you have not counted pins correctly. PIN8 is VREG3-so should be 3.3V and PIN17 is VREG5-so should be 5V. You mentioned pin8 at 5V and pin17 at 3.3V which is impossible if you counted pins correctly. Look for the dot mark on your IC. Thats pin1. Look for datasheet and try to understand how pins are counted.@Kalilinux25, i dont want to be harsh but you have 289 posts to your credit and you still dont know how to count pins correctly-That's not a good sign. You need to invest in basic knowledge first.

        Comment

          #5
          Re: no 3v and 5v section voltage reading

          Originally posted by mcplslg123 View Post
          Your readings are still wong as you have not counted pins correctly. PIN8 is VREG3-so should be 3.3V and PIN17 is VREG5-so should be 5V. You mentioned pin8 at 5V and pin17 at 3.3V which is impossible if you counted pins correctly. Look for the dot mark on your IC. Thats pin1. Look for datasheet and try to understand how pins are counted.@Kalilinux25, i dont want to be harsh but you have 289 posts to your credit and you still dont know how to count pins correctly-That's not a good sign. You need to invest in basic knowledge first.
          ive reply for the new reading sir

          Comment

            #6
            Re: no 3v and 5v section voltage reading

            Originally posted by mcplslg123 View Post
            Your readings are still wong as you have not counted pins correctly. PIN8 is VREG3-so should be 3.3V and PIN17 is VREG5-so should be 5V. You mentioned pin8 at 5V and pin17 at 3.3V which is impossible if you counted pins correctly. Look for the dot mark on your IC. Thats pin1. Look for datasheet and try to understand how pins are counted.@Kalilinux25, i dont want to be harsh but you have 289 posts to your credit and you still dont know how to count pins correctly-That's not a good sign. You need to invest in basic knowledge first.
            sorry

            1- 5V
            2- NO READING
            3- 2V
            4- 2V
            5- NO READING
            6- 5V
            7- NO READING
            8- 3.3V
            9- 4.4V
            10- NO READING
            11-
            12
            13
            14-3V
            15-3.3V
            16- 19V
            17-5V
            18-3.3V
            19- NO READING
            20-
            21
            22-4.4V
            23-
            24-

            ALL BLANK ARE NO READINGS

            SORRY I didnt notice

            Comment

              #7
              Re: no 3v and 5v section voltage reading

              I dont know how you take readings but i'm surprised by your readings:

              01. PIN15-its GND. You mention its 3.3V
              02.PIN1-Entrip1-Voltage should be 1.0-1.5V approx. Impossible to have 5V there. Same for pin6 as ENTRIP2.

              Infact i didnt read carefully all your pin readings as it doesnt make any sense.

              Comment

                #8
                Re: no 3v and 5v section voltage reading



                Ive read again the pin 1 it is 5v reading

                Comment

                  #9
                  Re: no 3v and 5v section voltage reading

                  Leave ENTRIP1 floating or drive it above 4.5V to shut down channel 1.

                  https://cdn.badcaps-static.com/pdfs/...b196680b71.pdf

                  Comment

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