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  1. M

    Be back in a few.

    I help as well!
  2. M

    820-2879-B Green Light No Boot

    Anyone out there tonight? Trying to get some direction.
  3. M

    2014 15" Retina 820-3662 Sleeps and never wakes up

    So I missed a little edge bonding....:o:o:o:o
  4. M

    820-2879-B Green Light No Boot

    Ok, finally got back to this one. I replaced r7021, c7020, r7022. resistors measure correctly. I have continuity between all components so traces are fine. I get 12.6v but it constantly fluctuates. I went back to the Q7085 and I get 16.5v for a couple of seconds, then it fluctuates down to about...
  5. M

    820-2879-B Green Light No Boot

    OK, I replaced the ISL and I have my green light back, but I am back to a fluctuating 12.6v PPBUS_G3H Any help would be appreciated C7050 = 3 OHM C7020 = OL
  6. M

    820-2879-B Green Light No Boot

    C7050 = 3 OHM C7020 = OL I aslo have another issue: I have now lost my green light for some reason, i would assume my ISL?
  7. M

    820-2879-B Green Light No Boot

    Quick update: Because of the fluctuating voltage and how low it was, I decided to replace the boost capacitor C7025. I now have steady voltage on PPBUS, but it is low at 9.56v If i understand what you are asking I put the probes on the top of the caps individually? If so I got OL on both, if...
  8. M

    820-2879-B Green Light No Boot

    I did get 12.6v on pin 1 of the fuse once removed, but no PPBUS, i also have 15.06v on charger a gate Ok, I seem to be getting the 12.56v, but its fluctuating. It starts at 12 and then drops, then spikes back to 12.
  9. M

    820-2879-B Green Light No Boot

    PPBUS_G3H 1.06k measured at F7040, diode mode at .445v, resistors check out at 10 and have continuity to the ISL, no corrosion around ISL. I do get the 12v rail only when battery plugged in but I do not get orange light or boot
  10. M

    820-2879-B Green Light No Boot

    So I have another 2879 board with green light and no boot. Have SMC_PM_G2_EN PPBUS_G3H is .65v Liquid damage on back side of board near Q7560, some corrosion on c7561,c7563 Looking for some direction
  11. M

    2014 15" Retina 820-3662 Sleeps and never wakes up

    Yes i get that I didn't think I did that. Did you get my message?
  12. M

    2014 15" Retina 820-3662 Sleeps and never wakes up

    OK, reflowed the smc, now i have no green or orange light and does not turn on at all. Have PPBUS_G3H, PPVIN S5 HS, PPDCIN_G3H,PP3V42_G3H Am i to assume i killed the SMC? ​I used to have a working computer that would not come out of sleep, now I have one that won't turn on at all!
  13. M

    2014 15" Retina 820-3662 Sleeps and never wakes up

    Ok, thanks. Will do., Just curious though, the smc is on the complete opposite end of the board, why would you think liquid would have got there? there are no signs of liquid anywhere around it. I am just trying to be cautious before i try to reflow the SMC. ( i have never done it before and...
  14. M

    2014 15" Retina 820-3662 Sleeps and never wakes up

    what temperature on hot air to reflow and approximately how long?
  15. M

    2014 15" Retina 820-3662 Sleeps and never wakes up

    Minor water damage near display port, no evidence of dropping. Seems to work normal as long as it does not sleep. Once it sleeps then has to have reset to start again Have the PP3V3_S4 rail present with charger plugged in. Can be shut off and turned back on, just not from sleep mode
  16. M

    2014 15" Retina 820-3662 Sleeps and never wakes up

    Have a computer that works until it sleeps, then never wakes up. I have to reset SMC to make it power on again. Totally have no clue how to begin. Need to resurrect it! :-)
  17. M

    [SOLVED] 2013 15" Macbook Pro Retina... Boots chimes no image

    No Title Well, I checked my data against a know good board(the one I am typing on) The values were very close to each other so i decided everything was normal I am proud to say that the screen is fixed and the computer is fully functional! Just a note, it is a mid 2014 15" Macbook pro. Thanks...
  18. M

    [SOLVED] 2013 15" Macbook Pro Retina... Boots chimes no image

    Ok, finally got everything done. New inductor, new lcd connector. Trace was blown on PP5VR3V3_SW_LCD at pin 1 of L8300 so I ran a wire to C8301 pin 1 Pin 27 ground trace was blown on lcd connector so I connected it to pins 25 and 26 Pin 28 trace was blown so soldered 28,29,30 together In diode...
  19. M

    [SOLVED] 2013 15" Macbook Pro Retina... Boots chimes no image

    Ok, finally got everything done. New inductor, new lcd connector. Trace was blown on PP5VR3V3_SW_LCD at pin 1 of L8300 so I ran a wire to C8301 pin 1 Pin 27 ground trace was blown on lcd connector so I connected it to pins 25 and 26 Pin 28 trace was blown so soldered 28,29,30 together In diode...
  20. M

    [SOLVED] 2013 15" Macbook Pro Retina... Boots chimes no image

    Great, thank you! Will follow up when done. P.S. Have been using that new board view software on my mac, what a difference!
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