Need help hp 725 g3 liquid damage

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  • azozexd
    Senior Member
    • Sep 2019
    • 51
    • Maroc

    #1

    Need help hp 725 g3 liquid damage

    Hello freind i have hp elitebook 725 g3 White liquide damage
    after cleaning the board i find à damage resistor white no value i test it not reading in multimeter
    could some one tell me the value of this resistor
    Thank you
    Attached Files
  • SMDFlea
    Super Moderator
    • Jan 2018
    • 22011
    • UK

    #2
    Can you not Type out the motherboard model number. Have you checked if there is a schematic/boardview available
    All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

    Comment

    • azozexd
      Senior Member
      • Sep 2019
      • 51
      • Maroc

      #3
      Originally posted by SMDFlea
      Can you not Type out the motherboard model number. Have you checked if there is a schematic/boardview available
      Yes i search for schematic not available
      model of board: LADYLUCK-6050A2725101-MB-A01
      Attached Files

      Comment

      • mon2
        Badcaps Legend
        • Dec 2019
        • 14691
        • Canada

        #4
        See attached. Is that a defect in the surface of the EC chip? If yes, this EC is very likely to be defective.

        Click image for larger version

Name:	defect.png
Views:	130
Size:	1.09 MB
ID:	3529489

        Comment

        • azozexd
          Senior Member
          • Sep 2019
          • 51
          • Maroc

          #5
          Originally posted by mon2
          See attached. Is that a defect in the surface of the EC chip? If yes, this EC is very likely to be defective.

          Click image for larger version

Name:	defect.png
Views:	130
Size:	1.09 MB
ID:	3529489
          Thank you for helping no its just rusin not clean
          There is no chort in motherboard just wather damage
          this resistor i want to find his valeu to replace it
          Attached Files

          Comment

          • mcplslg123
            Badcaps Legend
            • Jun 2015
            • 7262
            • india

            #6
            Since no info is available check the resistor is connected to which IC. to me it seems like charging IC REGN pin. You can then proceed to similar schematic with same charging IC to found the value of resistor.

            Comment

            • azozexd
              Senior Member
              • Sep 2019
              • 51
              • Maroc

              #7
              Originally posted by mcplslg123
              Since no info is available check the resistor is connected to which IC. to me it seems like charging IC REGN pin. You can then proceed to similar schematic with same charging IC to found the value of resistor.
              Thank you yes i search for schematic no way
              if somme one has the same motherboard it can help me

              Comment

              • mon2
                Badcaps Legend
                • Dec 2019
                • 14691
                • Canada

                #8
                Carefully inspect each square chip on the board for their topside markings. Hunt for one with 'BQ' or 'TI' in the part number. Post clear pics of the chip. This may be your charger IC on the logic board. This part should be close to where the power adapter mates to the logic board.

                Comment

                • azozexd
                  Senior Member
                  • Sep 2019
                  • 51
                  • Maroc

                  #9
                  Originally posted by mon2
                  Carefully inspect each square chip on the board for their topside markings. Hunt for one with 'BQ' or 'TI' in the part number. Post clear pics of the chip. This may be your charger IC on the logic board. This part should be close to where the power adapter mates to the logic board.
                  Thank you for respond
                  yes its (BQ) charging ic
                  laptop its good after cleaning
                  But this this resistor is damage
                  I don't Know his valeu i want to replace it
                  i think 10k resistor butte i'm not sur

                  Comment

                  • mon2
                    Badcaps Legend
                    • Dec 2019
                    • 14691
                    • Canada

                    #10
                    Trace the pin which connects to this resistor and charger ic. Then review sample schematics that use this charger ic to learn the resistor value.

                    Comment

                    • mcplslg123
                      Badcaps Legend
                      • Jun 2015
                      • 7262
                      • india

                      #11
                      Originally posted by azozexd

                      Thank you for respond
                      yes its (BQ) charging ic
                      laptop its good after cleaning
                      But this this resistor is damage
                      I don't Know his valeu i want to replace it
                      i think 10k resistor butte i'm not sur
                      What can one do if someone dont follow it up. I already suggested the way out.You just need to put a little effort on your own.
                      Everytime there cant be a picture perfect readymade solution available.
                      Sorry if my harsh comments hurts you.

                      PS: Re-read my post#6

                      Comment

                      • azozexd
                        Senior Member
                        • Sep 2019
                        • 51
                        • Maroc

                        #12
                        Originally posted by mcplslg123

                        What can one do if someone dont follow it up. I already suggested the way out.You just need to put a little effort on your own.
                        Everytime there cant be a picture perfect readymade solution available.
                        Sorry if my harsh comments hurts you.

                        PS: Re-read my post#6
                        yes of course i will try in moterboard white the same ic
                        thank you

                        Comment

                        • azozexd
                          Senior Member
                          • Sep 2019
                          • 51
                          • Maroc

                          #13
                          Originally posted by mon2
                          Trace the pin which connects to this resistor and charger ic. Then review sample schematics that use this charger ic to learn the resistor value.
                          Thank you i will try

                          Comment

                          • azozexd
                            Senior Member
                            • Sep 2019
                            • 51
                            • Maroc

                            #14
                            Originally posted by mcplslg123
                            Since no info is available check the resistor is connected to which IC. to me it seems like charging IC REGN pin. You can then proceed to similar schematic with same charging IC to found the value of resistor.
                            Thanks to all friend
                            I search for bq24780s schematic and i find resistor valeu its 100k resistor
                            i put 100k resistor its in (ACDET) pin
                            no power the mosfet has no signal bq24780s to switch the 19v i make bridge wire and BOOM🔥 laptop turne on butte not charging battrie after i replace bq24780s and BOOM🔥 again😅 and laptop start another life thanx to ALL

                            Comment

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