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Samsung Np350v5c charging circuit problem

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    #1

    Samsung Np350v5c charging circuit problem

    Hi have samsung laptop which give me this problem .Turn on normal battery status charging but actually not charging at all,works both with battery or without battery ,NOW when u start laptop only with battery and then later connected adapter laptop dont recognize adapter and if u take battery laptop switch off BUT same scenario starting laptop with battery and later connected adapter and then uninstall in device manager Microsoft ACPI controll battery laptop start recognize adapter but not charging ,Try to solder new charging chip from another same motherboard still same symptoms ,new bios same thing ,different adapter same ,anyone have experience with that laptop and what I should measure on motherboard to get work(Draining power not work)
    Samsung Np350v5c
    Intel i5
    dual graphic with Intel and radeon 7700
    Attached Files
    Tags: None
    #2
    Re: Samsung Np350v5c charging circuit problem

    Anyone

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      #3
      Re: Samsung Np350v5c charging circuit problem

      Hi. I would start by checking at PU200, check ACDET and ACOK signal levels.
      Check how they change when you plug and unplug the charger.

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        #4
        Re: Samsung Np350v5c charging circuit problem

        Originally posted by DSpawnZ View Post
        Hi. I would start by checking at PU200, check ACDET and ACOK signal levels.
        Check how they change when you plug and unplug the charger.
        Hi thx for helping I already change PU200 with another one and same thing ,I will try again to change the Bios or it here any mofset around PU200 that have something with adapter and battery or should I try to change power connection to matherboard

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          #5
          Re: Samsung Np350v5c charging circuit problem

          I cant locate the acdet chip PC245 or PR246 on motherboard

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            #6
            Re: Samsung Np350v5c charging circuit problem

            Originally posted by ciki View Post
            I cant locate the acdet chip PC245 or PR246 on motherboard
            Sometimes they are hard to find, as one would think that they might be close each other, or close to a chip, and you turn out finding that they are on the opposite side of the board. This can be frustrating. Don't give up searching. Samsungs are particularly known for missing or totally missing component reference on the PCB.
            Last edited by DSpawnZ; 09-10-2015, 10:47 AM.

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              #7
              Re: Samsung Np350v5c charging circuit problem

              Originally posted by DSpawnZ View Post
              Sometimes they are hard to find, as one would think that they might be close each other, or close to a chip, and you turn out finding that they are on the opposite side of the board. This can be frustrating. Don't give up searching. Samsungs are particularly known for missing or totally missing component reference on the PCB.
              Still nothing cant find

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                #8
                Re: Samsung Np350v5c charging circuit problem

                Originally posted by ciki View Post
                Still nothing cant find
                Tell me the board number. Usually starts with BAxxxxx, this might be on a sticker near the RAM slots, or printed on the board.

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                  #9
                  Re: Samsung Np350v5c charging circuit problem

                  Originally posted by DSpawnZ View Post
                  Tell me the board number. Usually starts with BAxxxxx, this might be on a sticker near the RAM slots, or printed on the board.
                  qcla4 la-8861p
                  rev 2.0
                  and sticker with qcla4 UH3 4M P02 A13A

                  BA59-03540A

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                    #10
                    Re: Samsung Np350v5c charging circuit problem

                    did you solve it ? i have same problem with same board la-8861p .

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