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  1. J

    Macbook air 820-00165-A

    Tried to heat up CPU as instructed. Did not help. Is it worth validating PCH is outputting correct frequencies? Thank you for the help and guidance. Much appreciated!
  2. J

    Macbook air 820-00165-A

    PM_SLP_SUS_L = 0v Also originates from U0500.
  3. J

    Macbook air 820-00165-A

    PM_BATLOW_L = 3.342v
  4. J

    Macbook air 820-00165-A

    RTC_RESET_L = 3.341v PCH_SRTC_RST_L = 3.341v (the doc refered to "SRTC_RST_L". I assumed it was this one) PCH_INTRUDER_L = 3.073v PCH_INTVRMEN = 3.249v
  5. J

    Macbook air 820-00165-A

    I do not have the original magsafe charger. PCH_SRTCRST_L = 3.342v PCH_INTVRMEN =3.25v PM_DSW_PWRGD =3.4v PCH_DSWVRMEN = 3.25v PP3V3_S5 = 3.34v
  6. J

    Macbook air 820-00165-A

    3V3_SUS = 0V checking that Rail
  7. J

    Macbook air 820-00165-A

    Macbook air 820-00165-A Charger showing green for 3-5 seconds, then orange light. Drawing 0.118A on power supply PPBUS_G3H = 8.59V PPBUS_S5_HS_COMPUTING_ISNS = 8.59V PPBUS_S5_HS_OTHER_ISNS = 8.59V PPDCIN_G3H_ISOL=14.82V PPDCIN_G3H = 14.82V PP3V42_G3H = 3.418V PPVRTC_G3H = 3.347V PP5V_S5 =...
  8. J

    LB 820-2530 Board with Bad u7000

    Yes, old board with GPU issue. I've been pulling components from it for last few months for other repairs.
  9. J

    LB 820-2530 Board with Bad u7000

    I noticed the values changing between hot and cool board. I removed U7000 last night and checked it this morning. I'll continue playing with this, but being an old board, I'll work on it when I have time. My biggest issue is not being able to compare this to a working board. Appreciate your...
  10. J

    LB 820-2530 Board with Bad u7000

    I removed C6952/53 and measurements dropped slightly. SMBUS_SMC_BSA_SCL = 0.510 SMBUS_SMC_BSA_SDA = 0.522 Removed U7000 now getting: SMBUS_SMC_BSA_SCL = 0.597 SMBUS_SMC_BSA_SDA = 0.698
  11. J

    LB 820-2530 Board with Bad u7000

    I did not check when u7000 was removed. BIL not connected. With D6950 removed... SMBUS_SMC_BSA_SCL = 0.517 SMBUS_SMC_BSA_SDA = 0.532
  12. J

    LB 820-2530 Board with Bad u7000

    SMBUS_SMC_BSA_SCL = 0.519 SMBUS_SMC_BSA_SDA = 0.535 Thank you.
  13. J

    LB 820-2530 Board with Bad u7000

    My bad on the diode "v" (edited the above) . Just to clarify, for the above diode reading, board was not connected to power. Could anything else be pulling down the voltage on PPBUS_G3H or is this most likely a bad SMC? Thanks for the guidance. Much appreciated!
  14. J

    LB 820-2530 Board with Bad u7000

    Replaced u7000 and now getting steady green light. 12.3V on PPBUS_G3H which seems a little low. Board not connected to battery. diode mode(red probe on GND) SMBUS_SMC_BSA_SCL = 5.2 SMBUS_SMC_BSA_SDA = 5.3 Voltage... SMBUS_SMC_BSA_SCL =3.4v SMBUS_SMC_BSA_SDA = 3.4v PP3V3_S5_AVREF_SMC=3.3v...
  15. J

    LB 820-2530 Board with Bad u7000

    Looking at a 2009 macbook pro LB 820-2530. No light on charger no ppbus_G3H u7000 pin resistance on: 17/18 => 20.7 27/28=> 20.5 voltage on... pin 1 = 16.78v pin 2 = 16.78v pin 3 = 4.02v pin 19 = 5v pin 20 = 5v pin 21,23,24 =0.7v ping 25 = 4.5V Need to replace U7000 as does not appear to be...
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