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  1. I

    820-3476-A

    Just got back to this one... L7430 diode it's 0.085 and also on C7425. But in the meantime before I saw your msg I reballed the SMC and the laptop started, but no picture just the fan spinning fast. I would reprogram the Bios to see what's gonna happen.
  2. I

    820-3476-A

    I checked all resistors taken out from the board and the only one around U7400 that was lower resistance was R7416, instead of 100k it's 60k...
  3. I

    820-3476-A

    Same thing o_O
  4. I

    820-3476-A

    Removed R8168 and smc bypass, still same no change
  5. I

    820-3476-A

    I changed U7400 but I lost PP5V_S4, When the original U7400 is on the board i have PP5V_S4 and all measurements as mentioned before, with 2 other U7400 i lost PP5V_S4...Green and orange light still comes on in any case...
  6. I

    820-3476-A

    U7400: pin12 - 3.3v pin16 - 3.3v pin17- 3.2v R7416 is 39k instead of 200k R7415 is 17k but not a big difference it should be 19.6k All other resistors around U7400 are fine, R8111 20k, R7418 51k, R7417 200k, R7401 is 10, R7425 is 0. On C7401 PP1V35_S3 i have 0.080 diode mode and no voltage, and...
  7. I

    820-3476-A

    The following are measurements without Q8150 L7430 - 0v L7630 - pin1 5.4v and pin 2 1.05v L7870 - 1.5v This morning I just plugged in the adapter and I got a fan spin(no Q8150 on the board) and it goes high speed, of course, no picture or backlight.
  8. I

    820-3476-A

    Even with Q8150 all voltages are stable. I rechecked the board again for shorts and corrosion, but nothing found
  9. I

    820-3476-A

    Without Q8150 i get on Bios, 3 and 5v, previously mentioned CPU voltage same, PPBUS_G3H is 12.6v, ALL_SYS_PWRGD 0v of course, but diode mode good ,Q7320/10 are 12.6v on PPBUS_S5_HS_COMPUTING. on Q7700 pin 3 and 4 i get 12.6v. There are all stable, anything else to measure?
  10. I

    820-3476-A

    Also, when plugged in the power supply shows 0.084a on 16.5v and stays like that no change even i power button is pressed
  11. I

    820-3476-A

    ok to avoid confusion. When i press the power button PLT_RESET_L stays 0v no change
  12. I

    820-3476-A

    "PLT_RESET_L it's 0v. on the power trigger, it's 3v and reacts when pressed" PLT_RESET_L it's 0v. on the power trigger button, it's 3v and reacts when pressed to power on. I have PP1V05_S0_PCH_VCCAPLL_OPI, but no PPVCC_S0_CPU
  13. I

    820-3476-A

    Yes all are checked and i receive 3 and 5v for power , no shorts. PM_SLP_S4/3_L are pesent. Anything else?
  14. I

    820-3476-A

    btw i just noticed L7130 pin 1 it's 55.8v and pin2 normal at 12.6v. Not sure if Pin 1 should be like that
  15. I

    820-3476-A

    Yes PP3V3_S0 it's 3.3v. Voltages on SSD connector: Pin1/5 PP3V3_S0SW_SSD_FLT 3.3v Pin 7 - 3.3v pin 47 - 3.3v
  16. I

    820-3476-A

    PLT_RESET_L it's 0v. on the power trigger, it's 3v and reacts when pressed... U1950 voltages: pin1: 0v pin2 : 3.3v pin3 : 0v of course :D pin4: GND pin5/7: 0v pin6: 0v pin8: 3.3v L7310/20 voltage not present
  17. I

    820-3476-A

    Hi guys. I have this A1502 with no power. I have all power lines present, U1900 I replaced them just in case, PM_SLP_S4_L is present, no short anywhere. I had the camera chip U3900 heating up near contacts 14 and 29 and I removed it not heating up anymore. Now when I plug it in, as before...
  18. I

    MacBook A2141 820-01700

    No, I don't have. Once I plug it in now it stays 20v and 0.27a and goes back to 0amps
  19. I

    MacBook A2141 820-01700

    No USB activity
  20. I

    MacBook A2141 820-01700

    Just to be clear the File that you sent me, was not accepted it stays on 5v like the others, only the original lets me get to the Booted state
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