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6050A2174501-MB-A03 (Satellite Pro L300D)

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    #21
    Re: 6050A2174501-MB-A03 (Satellite Pro L300D)

    Thanks, can you give me a brief summary of the tests you asked me to perform?

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      #22
      Re: 6050A2174501-MB-A03 (Satellite Pro L300D)

      KBC sends signal to enable inverter but not LVDS.

      Comment

        #23
        Re: 6050A2174501-MB-A03 (Satellite Pro L300D)

        I'm going to swap with the KBC of the old board, but I'm not sure if it has problem too. Will report back. Thank you a lot for your assistance.

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          #24
          Re: 6050A2174501-MB-A03 (Satellite Pro L300D)

          Swapped it, now I have 3.3V in Pin1 of BIOS, but now the LED lights are off.

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            #25
            Re: 6050A2174501-MB-A03 (Satellite Pro L300D)

            I found a netbook motherboard that was working with broken LCD, it was same model KBC, as soon as I plug the power cable, the WLAN light (D537) is on and fan is running nonstop, I can't power it off unless I unplug cable and I have 3.3V in BIOS pins 1,3,7,8.

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              #26
              Re: 6050A2174501-MB-A03 (Satellite Pro L300D)

              I desoldered CMOS battery and everything is back to square one, I have 0.7V in pin 1 of BIOS, no POST, I have LED for Power On and Cable Plugged.

              Comment

                #27
                Re: 6050A2174501-MB-A03 (Satellite Pro L300D)

                hi every one, I got before a problem with my laptop, black screen.
                In this case the graphic chip (ATI) after some year of working and the hi temperature ; some pins of the BGA soldering slough from the board , because the manufacturer in this period used a bad tin, the same thing happen with the xbox(it use the ATI graphic card).
                to resolve this problem; you can make your a graphic card work again by using hot air station to heat the chip until the tin attach again, or use the big means and desolder a chip and remove the old tin and replace with new one (use specific material).

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                  #28
                  Re: 6050A2174501-MB-A03 (Satellite Pro L300D)

                  I had the same symptoms and changed the kbc.
                  Nothing good happened...
                  Maybe i should break it with the hummer

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                    #29
                    Re: 6050A2174501-MB-A03 (Satellite Pro L300D)

                    LOL @memoslar.

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