Macbook A2141 820-01700 PPBUS Partial Short

[2informaticos]

Or T2...
Inject 1V and check with thermal camera.

 

[Instafixx]

Inject 1V to which line ?

 

[Instafixx]

Removed L7811. Short at PP0V82_SLPDDR. T2 Bad ?

Injected Voltage . L7812 was heating up. Removed and short is gone.

But
L7817/7816/7814/7815/7806/7821/7822 all are shorted.

 

[2informaticos]

"L7812 was heating up"
Then replace U7800.
Once removed, be sure no short on its coils.

 

[Instafixx]

Yes as per the thermal camera L7812 was hot getting hot when voltage was injected at PP0V82_SLPDDR

 

[2informaticos]

Because L7812 was the way back from 0V82_SLPS2R to U7800.

 

[Instafixx]

Replaced U7800. Shorts Gone. But still no voltage on the Coils around U7800.
1V8_SLPS2R still 0V

L9580 is shorted again.

Is it worth spending time on this device now?
Injected 1V. NAND is getting heated.

Such a waste of TIME