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  1. Palhano

    820-02020 - hall sensor problem

    Just to give feedback, the procedure works. The Mac now no longer turns on by itself with the screen closed.
  2. Palhano

    820-02020 - UF260 shorted

    The client reported that the Mac was working, but it stopped recognizing the charger and the battery ran out. The board is perfect, with no oxidation. But in diode mode, the PP3V3_UPC0_LDO line was altered by 0.033. The UF260 was heating up a lot. My question: can I replace just the UF260 or...
  3. Palhano

    820-02020 - hall sensor problem

    I think it worked! I'm still testing it, but the screen has been closed for 2 hours and it hasn't turned on.
  4. Palhano

    820-02020 - hall sensor problem

    To test and find out the bad side, correct me if I'm wrong. Using the logic of the older ones. I thought about removing the RR201 and making a jumper connecting AMR_RIGHT_OR_ND_1V8 to AMR_LEFT_OR_ND_1V8!
  5. Palhano

    820-02020 - hall sensor problem

    The Mac works fine. But it doesn't turn off when the screen is closed. The hall sensor fails and the Mac turns on (as if the screen had been lifted). If you leave the Mac turned off, with the screen open, it doesn't turn on. I checked the board, everything is perfect. I looked for the sensor to...
  6. Palhano

    820-00850 - 5v - 0,25a

    I don't have a recorder for this chip. But I found something strange. I don't have 1.8v on the CB302, but I do have it on the CB402. The CB302 line doesn't have any 1.8v line. I made a jumper between these components, but nothing changed.
  7. Palhano

    820-00850 - 5v - 0,25a

    It didn't work to restore. I still have 20v with the battery connected and 5v without the battery.
  8. Palhano

    820-00850 - 5v - 0,25a

    Restore in DFU?
  9. Palhano

    820-00850 - 5v - 0,25a

    I'm still trying to repair it. UPC_I2C_INT_L - 0v CHGR_RST_IN - 0v I checked R/C/Q7030/40 Is it worth replacing the u7000?
  10. Palhano

    820-00850 - 5v - 0,25a

    I checked and tested, nothing! Any other tips?
  11. Palhano

    820-00850 - 5v - 0,25a

    Yes, without the battery, it has 5v pulling 0.25a, on all ports.
  12. Palhano

    820-00850 - 5v - 0,25a

    I placed the logic board in a topcase with a good battery, it turns on, but does not charge the battery. It pulls 20v, but pulls 0.002a. The DFU restore attempt did not erase the Mac. So the system starts normally. U7000 Basic Voltages P_IN - 5.2v AUX_DET - 1v SMC_RST_IN - 0 VDDA - 5v VDDP -...
  13. Palhano

    820-00850 - 5v - 0,25a

    I did the DFU with the Mac battery. I'll try with another battery. Is it possible to enter DFU with the logic board outside the topcase?
  14. Palhano

    820-00850 - 5v - 0,25a

    I always get this model board with this problem. It had oxidation near UB300, with a short on the PP3V3_UPC_TA_LDO (CB308) line. I ended up with the short and the UB300 pulled 5v - 0a, the others 5v - 0.25a. So I replaced the UB300, now all ports pull 5v - 0.25a. Voltages and measurements in...
  15. Palhano

    820-01041 - works only with battery

    The child was born!!! =D I changed the U7000, the C7050 went to 12.2v. I put the F7000/1 back in, the board turned on and is charging the battery.
  16. Palhano

    820-01041 - works only with battery

    Without the F7000/1, the C7050 has 1.3v L6960 diode mode - 0.430
  17. Palhano

    820-01041 - works only with battery

    Now I have some voltages that before, with 20v, I didn't have. P_IN - 5.2v AUX_DET - 1v SMC_RST_IN - 0 VDDA - 5v VDDP - 5v EN_MVR - 0 AUX_OK - he is an NC, is that right? AMON - 0 BMON - 0
  18. Palhano

    820-01041 - works only with battery

    diode mode, 3V3_G3H_RTC - 0.440
  19. Palhano

    820-01041 - works only with battery

    Sorry, I haven't checked yet. But CD3215 have changed. Do I test the U7000 even with them strange? I checked the LDO lines in diode mode and all four are OK. But the voltages are strange. I no longer have any of the 1.1v LDO line (with charger in the port for the CD3215). The 1.8v line only...
  20. Palhano

    820-01041 - works only with battery

    I had 20v, no battery. but during testing, it changed. Now I only have 5.2v and 0a. PPBus dropped to 1v. I was checking the voltages and disconnected the source, when I connected it again, it was pulling 5.2v. What I managed to measure until I lost 20v. P_IN - 20v AUX_DET - 0 SMC_RST_IN - 0...
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