A1708 (820-00840-A) - no image

[thuygsm]

Hello everyone
I'm having a problem with my 2017 13'' macbook Pro
Initially I had 0V at C3204 and C3104, I tested and replaced the U2800 and then I got 1.1v as well.
The fan is spinning, the cpu is also hot, but I don't have a screen, no caps lock key light and no starter bell, I just get the feeling of a trackpad
I checked the CPU voltage at (L7210 - L7220) 0.945V they won't go back to 0.6~0.7v, I also torched the CPU with a temperature of 200 times for 20s, but still no result
Current voltage hangs forever at 19.1v 0.473A

[mon2]

This is an immediate current draw? Fixed at this value? Test each inductor for a short.

What is the voltage to ground of ppbus_g3h?

[thuygsm]

This is an immediate current draw? Fixed at this value? Test each inductor for a short.

What is the voltage to ground of ppbus_g3h?

Thank you for your reply: In the first 10 seconds, I received 0.941v and then 0.945v permanently at (L7210 - L7220) ppbus_g3h 13.04v 19.1v 0.473A, fluctuating 0.563A

[mon2]

Review this thread:

https://repair.wiki/w/MacBook_Pro_A1..._at_20V_repair

[thuygsm]

Review this thread:

https://repair.wiki/w/MacBook_Pro_A1..._at_20V_repair

PPBUS_G3H_P3V3S5 :13.4v
PP5V_S5 :5.10v
thank you!

[mon2]

Review the following power up sequence flow chart.