Lenovo ideapad 310-15IKB No Power

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  • lorins_core
    BlackSmith
    • Dec 2012
    • 551
    • Philippines
    #1

    Lenovo ideapad 310-15IKB No Power

    hello to all BadCaps

    I have Receive for repair
    Model: Lenovo ideapad 310-15IKB
    MOBO: NM-A981 Rev:1.0 (2016-06-16)

    Unit Status: No Power

    i check. have supply on rail. then i press power button. nothing happen no indicating power even light. but i try to hold the CPU & GPU heating Up.

    I check the 3.3Valw and 5Valw have and 1.8V Have

    then i check the supply on switch why 2v only. i think it is 3v?

    anyone can help me solve this or can you give me a Schematic .

    Thanks In Advance

    Tags: None
    • lorins_core
      BlackSmith
      • Dec 2012
      • 551
      • Philippines
      #2
      Re: Lenovo ideapad 310-15IKB No Power

      Up Up Up

        Comment

        • juffe
          New Member
          • Aug 2020
          • 1
          • Finland
          #3
          Re: Lenovo ideapad 310-15IKB No Power

          same problem here, any help?

            Comment

            • khaahk
              Badcaps Veteran
              • Dec 2013
              • 759
              • Estonia
              #4
              Re: Lenovo ideapad 310-15IKB No Power

              schematic is available:
              https://www.badcaps.net/forum/showthread.php?t=77863

              post measurements to have some information to go on...

                Comment

                • lapfix
                  Badcaps Legend
                  • Mar 2020
                  • 2715
                  • my workshop
                  #5
                  Re: Lenovo ideapad 310-15IKB No Power

                  Originally posted by juffe
                  same problem here, any help?
                  Better make a new thread.
                  Start by basic things : measurements ,resistance and impedance on all coils than post all that here

                    Comment

                    • Duranitron
                      Badcaps Veteran
                      • Jul 2014
                      • 544
                      • Philippines
                      #6
                      Re: Lenovo ideapad 310-15IKB No Power

                      if its not turning on and all power rails are ok and all ALW voltage are present.. try to check the power switch 3.3V and 0v when on. try substituting known good memory module. place an external monitor and check. check the bios ic vcc.. rtc button battery. if ok. try to flash the bios with known good dump.. gud luck!
                      Never stop LEARNING because life never stops TEACHING!

                        Comment

                        • dellxps15
                          Badcaps Legend
                          • Feb 2014
                          • 1588
                          • italy
                          #7
                          Re: Lenovo ideapad 310-15IKB No Power

                          remove solder on JUMP_43X79 and measure voltage here.

                          check also volts on pu401 pins
                          could be ec need reprogramming ?
                          Last edited by dellxps15; 08-16-2020, 03:17 AM.

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