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samsung np300e4z screen is flickering when battery only

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    #1

    samsung np300e4z screen is flickering when battery only

    I need help on this samsung np300e4z-a02ph the laptop is working fine with the charger plugged in only or battery and charger both plugged in working fine, but the problem is when i pullout the charger battery only plugged the screen is flickering.I have already tried replacing new battery still the same issue, replacing brand new screeen still the same issue. anyone please help on this please
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    #2
    Re: samsung np300e4z screen is flickering when battery only

    I remember somebody had a similar problem in this subforum. he has got many good recommendations. First, you should find that thread and provide a link here.

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      #3
      Re: samsung np300e4z screen is flickering when battery only

      Originally posted by caspian View Post
      I remember somebody had a similar problem in this subforum. he has got many good recommendations. First, you should find that thread and provide a link here.
      That thread was started by me and it was Asus laptop. Replacing the screen solved my issue.

      About the case in hand, I'll suggest you measure LVDS pinout voltage related to LCD Power(NO need to measure data lines) and compare the difference in readings-with batt only/with adapter only.

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        #4
        Re: samsung np300e4z screen is flickering when battery only

        thanks for the response. i dont have schematic for this can please suggest what pin number on the lvds connector to measure please?

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          #5
          Re: samsung np300e4z screen is flickering when battery only

          I found a schematic for a 300e4a, board number BS41-016661, I can upload it if you think it would be helpfull.

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            #6
            Re: samsung np300e4z screen is flickering when battery only

            how many pins on lvds connector?? If it is 30 pin, you can follow NP300E4A schematic which is freely available.

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              #7
              Re: samsung np300e4z screen is flickering when battery only

              it has 40pins connector

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                #8
                Re: samsung np300e4z screen is flickering when battery only

                Here is the one I have, it's not very big so have a look, maybe it will be helpful
                Attached Files

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                  #9
                  Re: samsung np300e4z screen is flickering when battery only

                  Check this
                  Attached Files

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