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  1. C

    820-00923 ppbus low

    0.083 TBA_AUX_DET no short C7016 not stuff on this board R7015/R7016 off board test is fine coresponding to shematic i will replace U7000 waiting recep component
  2. C

    820-00923 ppbus low

    ok for refer to diode mode ;) TBA_AUX_DET 0.002V (not diode mode) PPDCIN_G3H present of course
  3. C

    820-00923 ppbus low

    Board clean, 20V 0A PP3V3_G3H 3.3V PPBUS_G3H 0.8V, diode mode 0.424V on F7000 on this board don't find SMC_BC_ACOK for test TBA_AUX_DET 0V diode mod any idea fort next ?
  4. C

    820-00850 5V 0.10-0.4A Cycle

    replace U3000 board recognized DFU mode but revive not work on Apple configurator U3900 heat above 33 degrees celsius
  5. C

    820-01987 5V 0.06A

    Solved revive on apple configurator :o t2 chip can lock 5V
  6. C

    820-01987 5V 0.06A

    L7670 0.400V diode mode DFU working
  7. C

    820-01987 5V 0.06A

    voltage reading not diode mode reading
  8. C

    820-01987 5V 0.06A

    i've good IR camera nothing heat on Q7660 VIN ok 12.30V and out 0.05V is it possible bad Q7660 ?
  9. C

    820-00850 5V 0.10-0.4A Cycle

    not recognized on DFU mode
  10. C

    820-01987 5V 0.06A

    check again after removed charger and battery same problem
  11. C

    820-00840 No power

    yes course i understod lesson
  12. C

    820-01987 5V 0.06A

    L7670 0.027V but no short How to check ssd ?
  13. C

    820-01987 5V 0.06A

    Board looks pretty clean no liquide damage PP3V3_G3H to pin 1 from L7690 3.29V stable PPBUS_G3H 12.30V stable PP3V3_G3H_RTC 3.3V stable
  14. C

    820-00840 No power

    pray ok, board power on, display not ok ^^ cpu is dead, thanks anyway remark (0v coils power on)
  15. C

    820-00850 5V 0.10-0.4A Cycle

    pin 20 when U3000 remove : 0.414V diode mode Tried plug charger i've 5V 0.25A now PPBUS_G3H 12.26V and PP3V3_G3H 3.32V stable
  16. C

    820-00840 No power

    remove L7420 short disappears from PPBUS_G3H, U7420 bad ?
  17. C

    820-00840 No power

    ok :/ inject 1v to 12V slowly :/ short resistance to gnd 4.2 ohm L7430, L7410, L7420 same (approximate 4ohm) L7220 and L7210 8 ohm
  18. C

    820-00850 5V 0.10-0.4A Cycle

    Hello, Thanks i don't have good board for compare, i've check all pins of U3000 pin 20 seem very low 0.044V diode mode All USB-C ports exact same behavior and test flipping the cable L7660 is very low 0.044V L9080 diode mode 0.370V for PP3V3_G3H pulse at L7660
  19. C

    820-00840 No power

    board short to PPBUS_G3H remove F7000, tried inject to pin 2 just heat pipe get hot
  20. C

    820-00850 5V 0.10-0.4A Cycle

    History no liquid damage board stopped work no reason PPBUS_G3H pulse 7V - 12.30V PP3V3_G3H pulse Remove F7000 PP3V3_G3H 0V no pulse Noticed only U3000 get hot with F7000 present (158F with thermal camera)
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