Announcement

Collapse
No announcement yet.

EDI73 LA-G711P REV 1.0 No display

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
    #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
    #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

      #3
      Re: EDI73 LA-G711P REV 1.0 No display

      Originally posted by mcplslg123 View Post
      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

        #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

          #5
          Re: EDI73 LA-G711P REV 1.0 No display

          Originally posted by mcplslg123 View Post
          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

            #6
            Re: EDI73 LA-G711P REV 1.0 No display

            VCC_SA seems fine to me.

            Comment

              #7
              Re: EDI73 LA-G711P REV 1.0 No display

              Originally posted by mcplslg123 View Post
              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

              Previous template Next
              Working...
              X