820-01700 20v 0a

[nik1981]

Tiny amount of liquid damage in J4802 area, C6526, C7602 area and U8210 . Cleaned desoldered etc

20v 0.000-0.009v

Checked with S-UEM2 and tests fine.

PP3V3_G3H_RTC_X = 3.365v
PPBUS_G3H = 12.51v

PP0V8_SLPS2R = 0.788v
PP1V1_SLPS2R - 1.095v
PP1V8_SLPS2R = 1.788v

PPVDDCPU_AWAKE = 0.747v
PPVDDCPUSRAM_AWAKE = 0.790v

PP1V2_AWAKE = 1.195v
PP1V8_AWAKE = 1.787v
PP3V3_AWAKE = 3.335v

C7906 - PP3V0_G3H_RTC = 2.987v
C7905 - PP0V8_SLPS2R = 0.791v

No clue with this one

 

[nik1981]

PPBUS_G3H_SSD0_SNS = 12.51v
PP2V5_NAND_SSD0 = 0.00v <<<<< shouldn't this be 2.5v?
PP3V3_G3H_SSD0_SNS = 3.365v

 

[2informaticos]

Did you check that rail for short?
Be aware, SSD voltages may appear only after DFU restore; it will erase SSD.

 

[nik1981]

0.387 in diode mode so I think its not shorted.

U9580 has PPBUS_G3H_SSD0_SNS = 12.5v
P2V5_PGOOD = 0v
P2V5_EN_R = 0v

It seems from the schematic for TPS62180 that PGOOD is an output and the fact that it isn't getting P2V5_EN_R could be because of U9500 or like you say, SSD voltages aren't there until the DFU is restored. Im not sure but I don't think the customer would be happy with the data loss.

 

[2informaticos]

You can try revive option instead; not always helps!

Be sure first no short anywhere on the board; big coils, power FETs, etc...