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Need Schematic Lenovo Yoga 720-13IKB LA-E551P REV 2.0

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    Need Schematic Lenovo Yoga 720-13IKB LA-E551P REV 2.0

    Looking to fix a Lenovo Yoga 720-13IKB which turns on but wont post.

    #2
    Re: Lenovo Yoga 720-13IKB schematic and boardview?

    Bump

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      #3
      Need Schematic Lenovo Yoga 720-13IKB LA-E551P REV 2.0

      I have a short measured from a coil and some surrounding caps. So far I am ASSUMING its a 5v circuit.

      I have battery charge light.
      I have battery and power light.
      Battery charges to full (8v) no problem.
      Power button responds with power light coming on.

      No power up from board.

      What is crazy is I cannot locate the 19v rail in this thing. I know its there or I would not have the other rails. I do have a short on a circuit that I assume is a 5v rail. Short to ground along with surrounding caps.

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        #4
        Re: Need Schematic Lenovo Yoga 720-13IKB LA-E551P REV 2.0

        No power problem: power button not light; in your case it's power down, it can be caused by a short in cpu or gpu section; or a bad me region, you can try to flash the bios and ec bios first.
        the schematic is unvailablle on the payed forum.
        Last edited by polytek; 03-09-2019, 04:15 AM.

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          #5
          i need schematic LA-E551P

          Hi! need this schematic LA-E551P, PQI1 its broken, very hight voltage >.<
          Thanks

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            #6
            Re: Need Schematic Lenovo Yoga 720-13IKB LA-E551P REV 2.0

            Hi Guys i have similar problem but i dont have schematic to check all rails is they are OK or Short.
            Any update or schematic or at least to tell which rail is short on your board.

            Thank you !

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              #7
              Lenovo YOGA 720-13IKB CIZY3 LA-E551P rev 2.0 schematic

              Hi guys,
              laptop won't recognize any SSD
              No 3.3V on M.2 socket

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