Search results

  1. D

    Macbook Pro a1425 logic board

    pin2 of fuse to p1 of L7510 is 14.4 ohms
  2. D

    Macbook Pro a1425 logic board

    I had removed F9700 before your post I was just letting you know what I did. these were the measurements from the coils to ground Reading to ground L7030 = changing in the mega ohms L7510 = 5.6 ohms L7520 = 5.6 ohms L7550 = 3.3 ohms L7560 = 3.3 ohms L7630 = 16 ohms after that I measured the...
  3. D

    Macbook Pro a1425 logic board

    I removed F9700 and short remains I had also removed R6905 I'm not sure If I had said that in the last post. Checked the following TO PPBUS_G3H L7030 P1 448.2 ohms L7220 P1 2.93 k ohms L7550 P1 12.3 ohms L7560 P1 12.3 ohms L7510 P1 14.5 ohms L7520 P1 14.5 ohms L7630 P1 25.2 ohms I attached...
  4. D

    Macbook Pro a1425 logic board

    measurement from pin 1 of R6905 to ground is 8.9 ohms pin 2 of R6905 to ground is 18.9 ohms from the schematic I have there isn't anything between pin 2 of F7040 and pin 1 of R6905
  5. D

    Macbook Pro a1425 logic board

    Thanks the leaded solder did the trick! R7051 + R7052 + R7050 = 3.3 OHMS now short to ground now appears on pin 2 of the fuse F7040
  6. D

    Macbook Pro a1425 logic board

    I rechecked the reading at R7020 + R7021 + R7022 = 20.02 not sure what I did before.
  7. D

    Macbook Pro a1425 logic board

    ha yea your right, what was I thinking? what temp do you guys use for these boards to remove, I had mine set to 380c and was able to remove some components from a test board but this fuse doesn't seem to want to come loose?
  8. D

    Macbook Pro a1425 logic board

    the measurement for PPBUS_G3H was taken from pin 1 of R6905 This measurement "R7020 + R7021 + R7022 = 10.03 ohms" was taken from pin 1 of R7021 to pin 1 of R7022 with the resistors in series 10 ohms + .02 ohms + 10 ohms = 10.02 ohms so my 10.03 ohms reading seems to be in tolerance. "17/18...
  9. D

    Macbook Pro a1425 logic board

    8.8 ohms measured at r6905 to ground with power disconnected.
  10. D

    Macbook Pro a1425 logic board

    I'm not sure where to find the 820 number, the board has 2 fans. yes on the 10.03 ohms reading between pins 17/18 on isl6259 = 10.44 ohms readings on pins 2 = 16.25 3 = 3.95 12 = 3.41 13 = 3.37 19 = 5.48 20 = 5.49 9,15 I can't locate another place on the board to get readings on this and...
  11. D

    Macbook Pro a1425 logic board

    Also there is no Fan spin
  12. D

    Macbook Pro a1425 logic board

    I am working on a late 2012 Macbook Pro a1425 I have the following with the board removed from the system and only the dc board attached. Green light and then amber after a few seconds which means the PPV3v42 is working. I measure the following CHGR_DCIN = 16.5V PPBUS_G3H = 1.3v PPDCIN_G3H =...
Top