Technical Support Need Help with 820-3787

[user61596]

Macbook Pro A1398 no power, power suply show 0,04ma
PP1V5_S0 shurted to gnd, no have thermal cam, no place is hot.

 

[Patrick Ribbsaeter]

You need to inject voltage into that line(not more than 1.5v) and then feel around the board for the heated area. You can use freeze spray to find the issue.

You need a power supply for that.

 

[user61596]

You need to inject voltage into that line(not more than 1.5v) and then feel around the board for the heated area. You can use freeze spray to find the issue.

You need a power supply for that.

I tryed it already, I can´t feel nothing, I use freeze spray, nothing to see.
what can I try more?

 

[Patrick Ribbsaeter]

I tryed it already, I can´t feel nothing, I use freeze spray, nothing to see.
what can I try more?

What power rails do you have, can u please post some voltages...
What sleep state are you in?
Do you have SMC_BC_ACOK?
PP3V3_S5

if your power supply only shows 0.04 amp, then it's not possible you have short on PP1V05. The problem is most likely with your charging IC ISL6259

Do you have a green light on the charger, do you have PP3V42??
Can u make a video of the power supply, so we can see the voltage and amp..?

 

[user61596]

 

[Patrick Ribbsaeter]

mr, what are you doing..? I do not ask for a video of freeze spray..
You did NONE of what I asked for. Please reply with what I ask for!

1. What power rails do you have, can u please post some voltages...?
2. What sleep state are you in?
3. Do you have SMC_BC_ACOK?
4. PP3V3_S5...?
5. Do you have a green light on the charger, do you have PP3V42??
6. Can u make a video of the power supply(SMPS) so we can see the voltage and amp..?
7. Why did u take off the IC in the video?

Please reply to all our questions.