Recent content by 2informaticos

  1. 2informaticos

    820-01598-01 fan full speed

    Tried known good battery? Machine loads macOS?
  2. 2informaticos

    820-01958-A No Power 5V and 0.10a current draw

    Audio amplifier, U6400 in this case.
  3. 2informaticos

    Macbook A1932 820-01521

    Compare diode mode readings around U3100/200. Check if board turns on with a charged battery.
  4. 2informaticos

    820-01958-A No Power 5V and 0.11A

    Check if T2 gets all SLPS2R and AWAKE required voltages; small coils around U7800. Be sure to follow all the steps to put the machine into DFU. You may need to force it manually. https://logi.wiki/index.php/DFU_Mode_Restore_(Macs)#DFU_Mode_using_Jumper_method
  5. 2informaticos

    820-3481 - LED 1 blinking

    If no drop detected at 12V_S5, Q6970 should be good. However, I recommend to change it, if you are not sure. It should be available somewhere on Internet...
  6. 2informaticos

    A1398 820-3787-A no power

    Any reason to check other voltages, when missing 3V42_G3H and PPBUS_G3H? Put some logic in your job and don't waste time. Check Q7010 voltages.
  7. 2informaticos

    A1932 820-01521 DFU error

    Did you connect known good battery and trackpad? Tried disconnecting audio flex?
  8. 2informaticos

    A1398 820-00163-5 no image

    Medusa doesn't help here. I never tried with method like 3332/3787 on this board.
  9. 2informaticos

    820-01958-A No Power 5V and 0.11A

    First of all, welcome to the forum! Is the machine recognized into DFU?
  10. 2informaticos

    A1932 820-01521 DFU error

    Post an image of the error.
  11. 2informaticos

    820-3481 - LED 1 blinking

    If 3V3_S5 is really stable, that LED shouldn't blink. Check if 12V_S5 is flat, no drops. You may need to change Q6970; do it, just in case.
  12. 2informaticos

    A1989 820-00850-A 5V 0.03A

    Is not critical, forget it. If you now get correct C7050 voltage, then resolder F7000 and test the board.
  13. 2informaticos

    A1989 - Anyone ever seen a fault which looks like the device is intermittently not sleeping with lid close?

    Check if all S0 voltages go off, when lid is closed. To diagnostic such problems with the MLB on the desk, use magnets aproached to lid sensors.
  14. 2informaticos

    820-3481 - LED 1 blinking

    "LED 1 blinking" Which is that in the schematic used?
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