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  1. smiba

    [SOLVED]Macbook pro 820-3115-B Wont boot to OSX.

    Have a great Christmas lagadatorumea ! Make sure you're not putting too much stress on the cable because they break fairly easy, I've had enough "new" cables just not work right because at some point in time they were just slightly bent. Glad its resolved though!
  2. smiba

    [SOLVED]Macbook pro 820-3115-B Wont boot to OSX.

    Its probably not detecting the storage drive, does it at least boot from USB? If so: Already tried a new drive cable? Because those ALWAYS die
  3. smiba

    820-00165 No ALL_SYS_PWRGD

    SMC_PM_G2_EN should be 3v ​​​​​​its possible that when you first probed the S5 lines were not working because of this Resistance to ground in Ohms on this line? Any crap around the SMC?
  4. smiba

    820-00165 PPBUS-G3H short to ground

    This is to be expected, the ribbon cable carries the SYS_ONEWIRE signal
  5. smiba

    820-00165 No ALL_SYS_PWRGD

    Voltage of P3V3S5_EN_R, SMC_PM_G2_EN, P5VP3V3_VREG3, PP5V_S5? I'm suspecting a dead U7501
  6. smiba

    [SOLVED]820-00045 - Random crashing with graphical glitches

    Replacing the headphone jack/audio assembly resolved the PFM006 and PPN001 issues, Resolved!
  7. smiba

    [SOLVED]820-00045 - Random crashing with graphical glitches

    Got a replacement board, this one does not crash but AHT still has errors with PFM006 and PPN001. Any idea what this could be from? EDIT: We don't have working audio so maybe it has something to do with that single board from the headphone connector. HWSensors gives me a 128C reading for...
  8. smiba

    820-00165 PPBUS-G3H short to ground

    I probably should've made a full reply about this, but I just wanted to add that you should always start with the lowest voltage possible and going above ~1.75V on PPBUS lines can be risky in case its leaking away into the GPU or CPU (Which is probably good for 1/5th of the PPBUS shorts)...
  9. smiba

    820-00165 PPBUS-G3H short to ground

    Small correction, you need to increase Amperage. Wattage will not heat things up, its the amparage that will. Always use a as low voltage as possible and only increase the voltage if you can't increase the amps anymore due to the voltage stabilizing
  10. smiba

    [SOLVED]820-3209-a No Power

    Unlikely, I think if the PCH was missing its DAC voltage the system woudn't work or at least not pass AHT. Should be alright :)
  11. smiba

    [SOLVED]820-3209-a No Power

    Glad you resolved it!
  12. smiba

    [SOLVED]820-3209-a No Power

    To battle the supply maxing out: increase the voltage, the maximum allowed in this case is 3.3V.
  13. smiba

    [SOLVED]820-3209-a No Power

    The resistors are all good, in almost all cases a resistor fails high resistance. The lower resistance measurements are simply because the electricity found a different way to flow The resistance to ground on PP3V3_S5 is bad though, that shoudn't be so low. Inject 1V into it and start with...
  14. smiba

    [SOLVED]820-3437-B After water damage clean doesnt switch on from Power Button

    Short inside of the keyboard's ground to PP3V42_G3H most likely Monitor the voltage of PP3V42_G3H when pressing the button, it shouldn't fluctuate more then 0.02v at best.
  15. smiba

    [SOLVED]820-3209-a No Power

    R7206, R7216, R7238, R7246 and R7260/61 within specifications? Resistance to ground on PP3V3_S5 in Ohms?
  16. smiba

    A1278 820-2879: No power // no green light

    To be sure, are you measuring these resistance values with power applied or not? Also see dukes response above
  17. smiba

    [SOLVED]820-3209-a No Power

    No missing that test point would at best cause issues in S0, but you're not even fully getting into S5 Voltage of PP5V_S5, P5VP3V3_VREG3 & P5VP3V3_VREF2? Voltage of P3V3S5_EN_R? Voltage of PPVIN_S5_P5VP3V3 probed at C7200? Voltage of Pin 12 of U7201? (Probed at the pin or otherwise as close as...
  18. smiba

    Bench power supply questions (noob)

    Yeah so it's dead Did the same as all those models that arrived DOA with me. Slowly it builds up a charge but the >500kOhm from the multimeter is already enough to slowly drain this. Just to be sure, can you see if it works by connecting it to Positive and Negative instead of ground? I think...
  19. smiba

    Bench power supply questions (noob)

    Check if if even outputs current. Set the PSU to 1V, 1A and short the leads. It works it should go into current limit I've had 3 broken PSUs before I had one that worked, just pay some good money for one. All the <$100 ones are likely DOA in my experience
  20. smiba

    [SOLVED]820-3536 - not reading serial no.

    I think coconutbattery gets the manufacture date from the serial number. I think BBS v1.1 still worked on the 2013 models but I might be mistaken. I remember using it on a Retina macbook before with success though
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