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  1. iClub

    820-3662 not turning on

    PM_BATLOW_L 3,34V PP3V3_S5 3,34V I am using 85W charger.
  2. iClub

    820-3662 not turning on

    Good morning, this mac had 1V on the PPBUS, I checked the u7100 terminals 27/28 had high resistance, then I changed the resistors and the u7100, the PPbus is now 12.56V, but the mac won't turn on. Voltage: PPBUS 12,56V PP3V42_G3h 3,39V PLT_RST_L 0,021V PM_SYSRST_L 0V; PM_PCH_PWROK 0V, pulse...
  3. iClub

    820-00239 Won't turn on. Liquid damaged.

    Only F3001 and F3000 oscillate.
  4. iClub

    820-3482 not turning on/ 1 Blink Led

    SMC_PM_G2_EN is oscillating.
  5. iClub

    820-3482 not turning on/ 1 Blink Led

    I am using the bench power supply, supplying 12V to the board, does this change anything?
  6. iClub

    820-00239 Won't turn on. Liquid damaged.

    BUF_SMC_RESET_L mesmo que SMC_RESET_L PP3V3_G3H 3.4 oscillating 2.9V
  7. iClub

    820-00239 Won't turn on. Liquid damaged.

    PP3V3_PMICLDO 0V no pulse. PP5V_PMICLDO 0V no pulse. PP5V_PMICLDO_R 0V no pulse.
  8. iClub

    820-00239 Won't turn on. Liquid damaged.

    3.38V oscillates to 2V
  9. iClub

    820-00239 Won't turn on. Liquid damaged.

    U7000 diode mode Voltage PPVIN_G3H_P3V3G3H 567 4,78v~ TBA_AUX_DET 641 1,27v~ TBA_VDDA 468 5,040~ TBA_VDDP 466 5,038~ TBA_MPM_DET 637 3,41V HPWR_EN_L 641 3,38v CHGR_AMON 639 6mV, sem pulso CHGR_BMON 639 73mV, sem pulso SMC_RST_L 636 U7800 PP3V3_PMICLDO...
  10. iClub

    820-00239 Won't turn on. Liquid damaged.

    What is causing this lack of voltage on the PPBUS?
  11. iClub

    820-00239 Won't turn on. Liquid damaged.

    L9400 0.6 Ohm this value is the resistance of the component. The value of P2V7NAND_R is 0.395V diode-scale. I want to know if there is voltage at PPBUS_g3h when the u9300 is off the board ?
  12. iClub

    820-00239 Won't turn on. Liquid damaged.

    P2V7NAND_SW 0,391V PPVIN_2V7NAND_LB 0,448V L9400 0,6 Ohm FB200,F3001,FB201 and F3000 5v, sorry, now the voltages are showing up. The machine is without the u9300, does this influence the PPbus?
  13. iClub

    820-00239 Won't turn on. Liquid damaged.

    This mac suffered oxidation in the U9300, UB300 and Q9401 region, where the u9300 was shorted, I took it out and tested it, but it doesn't show PPBUS. Voltage: PPbus 0V; PP20V_USBC_XB_VBUS_F 0V; PPDCIN_G3H 5.116V shows oscillation; PP3V3_G3H 3.4V; LDO rails showed ideal values in diode mode...
  14. iClub

    820-00928 error kernel/ sleep

    this mac suffered oxidation in the u4200, Q420,U3906 and U3500 region, I replaced the oxidized components, in tests when it enters sleep mode and exits, it shows kernel error.
  15. iClub

    820-3126 high-speed fan

    Hi, this imac has been repaired the USB ports, when it turns on after a few seconds it starts to speed up the fan. In HWmonitor shows that the fan of the ODD this accelerated and 128 Degrees GPU heatsink. How can I identify which sensor is causing this?
  16. iClub

    820-3482 not turning on/ 1 Blink Led

    Yes, the Power Supply works fine, I tested it on another iMac.
  17. iClub

    820-00165 camera light flashing/not working.

    Yes, I tested more than one display that works the camera. There was oxidation on the L4007,L4009.
  18. iClub

    820-2997 Cinema display no image

    We replaced the tunderbolt cable, but it did not display a picture. The cable gets hot when connected, even with the new cable. Without electrical schematics, I don't know where to start.
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