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  1. I

    Macbook A1706 Stuck at 5V. No PPBUS

    Then ? It worked randomly for sometime with the battery. But then again after sometime back to this. I dont have a known good battery to eliminate if its a battery issue. Any other checks?
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    Macbook A1706 Stuck at 5V. No PPBUS

    [UPDATE] With Internal LCD Disconnected and external video connected the machine draws a steady 20V and i can see the apple logo on the monitor. But it gets stuck there. Can it be a Hall Sensor Issue ?
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    Macbook A1706 Stuck at 5V. No PPBUS

    R6950 is 9.8 K Ohms (Between the PINS) Diode Mode to Ground 2.664 I put a 200K resistor instead of 10K and it switched on with Battery Connected and 1% Charge with "Battery Not Charging". Put back the 10K resistor on the board.
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    Macbook A1706 Stuck at 5V. No PPBUS

    Q7560 Voltages With Battery Connected. All at 12.07V Only TBA_BGATE at 4.2V Without Battery All at 13.09V SCL/SDA Lines at the Battery Connector is .430 Diode Mode to Ground. If i connect the charge first and the connect the battery after machine is booted. Restart it. It detects the...
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    Macbook A1706 Stuck at 5V. No PPBUS

    I dont kow how it happened but it got knocked off again. Now the point is missing from the board so i had to run a jumper wire from the test point on other side of the board to pin 2 of R6051. I get diode mode reading of .750. But still it is not working on battery. C7020/3 is 2.9 Ohms. Tried a...
  6. I

    820-00165 Random Issues - Dirty

    Crap Under SMC. Removed. Cleaned and Put Back. Machine boots up now.
  7. I

    Macbook A1706 Stuck at 5V. No PPBUS

    R6051 missing from the board. Replaced. Working Now with Battery
  8. I

    820-00165 Random Issues - Dirty

    For My Reference Only - FIU 820-00165. Booting only on charger. Sometimes showing the question mark folder. After opening the machine i found it is full of dirt. Customer has they had it kept for a couple of years. Clean the dust properly. After inspection i find C5002/C5007/C5017 corroded...
  9. I

    Macbook A1706 Stuck at 5V. No PPBUS

    It will not boot with battery connected and amp meter reboots every2-3 seconds on all 4 ports. Without battery it boots up fine
  10. I

    Macbook A1706 Stuck at 5V. No PPBUS

    It was working well but one fan wasnt spinning. So i removed the board and saw that the fan wasnt connected ( the one that connects to the keyboard. after connecting that fan started spinning very fast so i disconnected it and the machine went dead again. Same short as before. Working on it...
  11. I

    Macbook A1706 Stuck at 5V. No PPBUS

    i just replaced D6902 and i now getting ppbus and 20V on the amp meter. Let me put it back to the chasis and see if it boots up
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    Macbook A1706 Stuck at 5V. No PPBUS

    Went through the forum and checked the following. R6907 between the Pins is 9 Ohms. Should we replace it ? L6900 is 2.2V. After removing R6915 its 3.3V Pin 1 of D6902 is 0V
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    Macbook A1706 Stuck at 5V. No PPBUS

    Yes. Short Removed. i put back the board on the chasis. I connect the charger. I get the chime and then nothing. Its back to being dead. PPBUS is still 0V. PPVIN_G3H_P3V3G3H is 3.9V PP3v3_G3H is 2.2V. Diode Mode Reading to Ground is .384 PM_EN_P3V3_G3H is 4.7V R6902 and R6915 Resistance...
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    Macbook A1706 Stuck at 5V. No PPBUS

    Okay! I ll do that tomorrow!! But shouldn’t the reading be OL ?
  15. I

    Macbook A1706 Stuck at 5V. No PPBUS

    See the images. Everything Removed Except U7000. Red to Ground. Meter in Diode Mode. PPVIN_G3H_P3V3G3H is .600.
  16. I

    Macbook A1706 Stuck at 5V. No PPBUS

    U7000 U6903 C6906 All of them individually causes this value. Just resolder U7000 and i get value… like that.
  17. I

    Macbook A1706 Stuck at 5V. No PPBUS

    I put back U7000 - started getting value. Removed it U6903 - started getting value. Removed it C6906 - started getting value. Removed it. Are all these components bad ? Putting back these individually and started getting value in diode mode instead of OL.
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    Macbook A1706 Stuck at 5V. No PPBUS

    Indeed. Removed C6905/6, U6903 , D6902 and U7000 and PPVIN_G3H_P3V3G3H is OL now. Now putting back components 1 by 1 and seeing what is creating an issue. Updating in 30 mins.
  19. I

    Macbook A1706 Stuck at 5V. No PPBUS

    Hi a typing error. R6902 Ohms Scale is 2.3 Ohms. Diode Mode of PPBUS_G3H is .500 on both sides
  20. I

    Macbook A1706 Stuck at 5V. No PPBUS

    Removed C6905/6 and U6903. Then also value is same - 0.092. R6902 value between pins in ohms scale is 2.3 Ohms Removed R6902 as well. Still the Value is same.
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