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    inspiron 15 dead .

    hi everyone
    dell inspiron 15
    Iris BSW MB 14279-1 PWB:896X3 REV:A00
    completely dead no led nothing
    3v on pwbtn ok
    3v and 5v ok
    plug the charger no power led
    press the power button nothing happen and power supply shows no power consumption .
    i change the charger with original the same thing .
    where is the problem ?
    Last edited by mo000; 01-20-2021, 07:38 AM.

    #2
    Re: inspiron 15 dead .

    Offline consumption on DC supply?? Voltage on Dc-IN mosfets D-S-G?

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      #3
      Re: inspiron 15 dead .

      While he can read +3V and +5V I guess DC-In mosfets should have correct voltages.

      Is this your schematic?
      Attached Files

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        #4
        Re: inspiron 15 dead .

        Originally posted by sopik78 View Post
        While he can read +3V and +5V I guess DC-In mosfets should have correct voltages.

        Is this your schematic?
        Not necessarily. You may have 5v/3v as 2nd dc in mosfet may pass on +19V on diode mode and may have gate bias missing. has faced such issue on HP 6th gen mb.

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