Search results

Duke, Just so I can confirm before posting results, You are requesting the readings between PPBUS and the source side of the FET? Just not sure what you mean by the "high" side, other than the source side. Or do you want readings at the drain?

Is there no light on the logic board where the D.C. In is at?

Do you have a solid green / orange light on the charger ?

Is this indicating a short on PPVCC? I recall in a video from Louis that it isn't a significant enough drop on a major power rail to call it a short.

Duke, When checking in Diode / Continuity mode, PPBUS to ground is showing 145 drop, PPVCC is showing 40 drop. PPBUS is showing 89 Ohm resistance to ground PPVCC is showing 23.9 Ohm resistance to ground Resistance to each other is 179 Ohms

Just another note, when leaving the magsafe plugged in, the CPU area temperature goes from about 86-120+ F. Is this a case of dead CPU?

Duke, After semi reflowing the SMC, as suggested, I now get a solid green to orange light. PPBUS_G3H is now 4.2v PP3V3_S5 is now 1.2v PP5V_S5 is now 4.1v I assume these voltages are still too low for normal operation?

Okay I will try that and post my results, would crap under the smc cause all of the shorts I'm having on the 3v3 rail?

Duke, Voltages are - SMC_BC_ACOK - 3.3v SMC_RESET_L - 3.3v PPBUS_G3H - 12.3v Adapter_sense is getting 3.4v, does that prove that the sys_onewire is working? I am getting 16.7v on either side of DC IN fuse (F7005) as well as PPDCIN_G3H

So I have this water damaged A1502 MBP 13" Retina, it was very light water damage, as no apparent physical signs of corrosion. PPBUS_3GH is good, all PP3v42 are good. NO PP5V_S5. U7501 is receiving 3.3 @ VIN but no voltage at SMC_PM_G2_EN , S5_PWR_EN or P5VS4RS3_EN. I do get a faint green...