EDI73 LA-G711P REV 1.0 No display

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  • kalilinux25
    Badcaps Legend
    • Mar 2018
    • 2075
    • ZAMBOANGA SIBUGAY
    #1

    EDI73 LA-G711P REV 1.0 No display

    EDI73 LA-G711P REV 1.0 (A00)
    2018-11-05
    INSPIRON 3480
    SERVICE TAG 3KLGDX2

    PCH_SRTCRST# CLRP1 - 3.0V
    PCH_RTCRST# CLRP2 - 3.0V
    YCL No 24mhz
    YC2 Reading 32.768 KHZ
    YE1 - 32.768 MHZ
    YL1 -25MHZ


    +5VALW -5V
    +3VALW -3V
    +3VLP - 3V

    SYS_PWROK-3.3V
    PRIM PWRGD - 3.0V
    +1.8V_PRIM - 1.7V
    +1.05V PRIM - 1V
    +1.8VALW_EC 1.7V
    +3VALW_EC -3.3V
    +1.2VP -1.2V
    PLI01 -+VCC_CORE - 0.8V
    PLG01 +VCC_GT - 0.6V
    Attached Files
    Tags: None
    • mcplslg123
      Badcaps Legend
      • Jun 2015
      • 7262
      • india
      #2
      Re: EDI73 LA-G711P REV 1.0 No display

      AFAIK, VCC_GT should appear for a second and go away(measured on DMM) on a working mb. If it remains constant-most likely CPU fault. I had a dell 3567(15341-1) with all rails coming up and i checked all power sequence-Didnt find anything wrong except VCC_GT always on at 0.65V whereas on a working mb it just comes up for a second and goes away. So decided to replace SOC and got display. Maynot be the same case but my experience suggests, if VCC_GT remains constant-most likely cpu failure.

        Comment

        • kalilinux25
          Badcaps Legend
          • Mar 2018
          • 2075
          • ZAMBOANGA SIBUGAY
          #3
          Re: EDI73 LA-G711P REV 1.0 No display

          Originally posted by mcplslg123
          AFAIK, VCC_GT should appear for a second and go away(measured on DMM) on a working mb. If it remains constant-most likely CPU fault. I had a dell 3567(15341-1) with all rails coming up and i checked all power sequence-Didnt find anything wrong except VCC_GT always on at 0.65V whereas on a working mb it just comes up for a second and goes away. So decided to replace SOC and got display. Maynot be the same case but my experience suggests, if VCC_GT remains constant-most likely cpu failure.
          maybe cause I have remove the short from the PCA01 +VCC_SA

          I already remove the bad caps now its just having low viltage reading to the coil

            Comment

            • mcplslg123
              Badcaps Legend
              • Jun 2015
              • 7262
              • india
              #4
              Re: EDI73 LA-G711P REV 1.0 No display

              VCC_SA must come first. What is the voltage on VCC_SA coil?? Check the requirement of that IC connected to VCC_SA coil.

                Comment

                • kalilinux25
                  Badcaps Legend
                  • Mar 2018
                  • 2075
                  • ZAMBOANGA SIBUGAY
                  #5
                  Re: EDI73 LA-G711P REV 1.0 No display

                  Originally posted by mcplslg123
                  VCC_SA must come first. What is the voltage on VCC_SA coil?? Check the requirement of that IC connected to VCC_SA coil.
                  PLA01 coil has 0.8V

                  PQA01
                  1-G1 1.2V
                  2,3,4 - 19V
                  5,6,7 - 0V
                  8 - 5V

                  PUA01
                  1. BST - 5.7V
                  2. PMW - 1.1V
                  3. EN - 5V
                  4. VCC -5V
                  5. DRVL -2.2V
                  6. GND - 0V
                  7. SW - 0.8V
                  8.DRVH 0.9V

                    Comment

                    • mcplslg123
                      Badcaps Legend
                      • Jun 2015
                      • 7262
                      • india
                      #6
                      Re: EDI73 LA-G711P REV 1.0 No display

                      VCC_SA seems fine to me.

                        Comment

                        • kalilinux25
                          Badcaps Legend
                          • Mar 2018
                          • 2075
                          • ZAMBOANGA SIBUGAY
                          #7
                          Re: EDI73 LA-G711P REV 1.0 No display

                          Originally posted by mcplslg123
                          VCC_SA seems fine to me.
                          Thanks for the help sir. I already return the laptop because Its very complex problem. Thanks for the help

                            Comment

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