thread top ad

Collapse

Announcement

Collapse

READ BEFORE REGISTERING SO YOUR ACCOUNT WORKS

In order for your account to be activated INSTANTLY, your PayPal email MUST MATCH THE EMAIL YOU USE TO REGISTER YOUR ACCOUNT ON THIS FORUM!! If your PAYPAL email address differs from your FORUM email address, your account will have to be activated MANUALLY when a customer service agent gets around to it.

I realize this sucks, and I do apologize.
See more
See less

​820-3476-a Green/orange light, pp5v_s5 low. Not booting.

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • ​820-3476-a Green/orange light, pp5v_s5 low. Not booting.

    820-3476-a
    very light blue corrosion around probe 106 area under the hard drive but does not look like direct water damge.


    PPBUS_G3H 12.56v
    PPBUS_S5_HS_COMPUTING 12.56v
    PPBUS_S5_HS_OTHER5V 12.56v
    PPBUS_S5_HS_OTHER3V3 12.56v
    PPDCIN_G3H_ISOL 16.16v
    PPDCIN_G3H 15.9v
    PP3V42_G3H 3.425v
    PPVRTC_G3H 3.425v
    PP5V_S5 2.5v
    SMC_PM_G2_EN 52.3mv


    PP5V_S5 1.36k resistance to ground

    beep across c1031 is this normal?
    logic board looks really clean, liquid contact indicators are perfect.
    I know there is a short on pp5v_s5 but i can't seem to find it.
    Do you guys have any suggestions?


    r7020 470k
    voltage on r7020 on one side is 16.5v and on system side 14.8

  • #2
    Remove flex from J4800 and check PP5V_S5 again.....

    Comment


    • #3
      Also check SMC_PM_G2_EN, it is needed to activate U7501, this signal comes from SMC.....

      Comment

      thread bottom ad

      Collapse
      Working...
      X