Re: MacBook Pro A2159 No Power after new Display

I've measured the voltages of the following on U7000 :

PPVBat_G3H_CHGR_REG = 12.22V

On the U7100:
PPVIN_S0_CPUVR_VIN = 12.22V
PP5V_COREVR_VCC = 0 ( Should be 5.3v? but not sure what is the trigger for this to be active )

I've measure the following too:
PP1V8_SLPS3R_PMUGPIO = 1.8V
PP1V1_SLPS2R = 1.1V
PP0V82_SLPDDR = 0.8V
PP3V3_AWAKE = 3.29V
PP0V9_SLPDDR = 0.9V

My only concern is
PP0V8_SLPS2R = 0V. IS this a standard always present...

Re: MacBook Pro A2159 No Power after new Display

I have just been doing some testing, and was about to report some voltages etc, I will have a look at the U7000 later.

It has 2 x USB 3 ports ive tried both of them and just battery and just power supply, It is the original genuine one

I measured the following:
PP20V_USBC_XB_VBUS = 20.29V
PPDCIN = 20.28V
PPBUS_G3H = 12.22v
PP3v3_G3H = 3.291V
PP1v8_SLPS2R = 1.801V
PP3V_G3H_RTC = 3.3V
PP5V_G3S = 0 V


I am unable to find 5v supply. It maybe...

Re: MacBook Pro A2159 No Power after new Display

Thanks, i've put the damaged screen back in and still no power

maybe i shorted something while installing ? battery was disconnected thou

ill have to try an work my way through the schematic.

Any pointers on test points to begin with ?

Thanks

HI All

I have a Mac Book Pro A2159 with a broken screen, its been replaced with a new one, however the mac will not power on.... Before the screen was replaced the mac was working with an external monitor, and the touch bar would light up as normal

Since the repair, nothing, dead. The power button does nothing, the touchbar does not light up to indicate any power.

it makes no difference if power is connected or just battery or power but no battery

I have downloaded the schematic from one of the threads here, but at a bit of...

Re: New Members - please post your introductions here

HI All

Im an IT Consultant usually repairing hardware and software issues of my customers, based in Herefordshire UK .