please help friends, I have 3 T490 units with the same case, the USB type C is completely dead, showing 20v 0 amp, loss of voltage VINT20_IN resistance to ground is fine, thank you
I think the problem is that I lost the voltage at PQ0008 pon 1 -PWRSHUTDOWN which should have been high which was picked up by R9512 VCC3SW, thank you very much for your help
PF0002 20v
PQ0005
pin 5 20v
pin 1.2.3 19.8v
pin 4 19.8
resistance
source & drain 2,4 m
source & gate 100k
PQ0006
pin 1.2.3 19.8v
pin 4 19.8v
pin 5.6.7.8 0v missing
resitance
drain 5.6.7.8 1,2m
source & drain 2,4 m
source & gate 100k
PQ0007
pin 1 3.3v
pin 2 2.5v
pin 3 19v
PQ0008
pin 1 0v missing -PWRSHUTDOWN
pin 2 gnd
pin 3 0v
resistance pin 1 600k
F9502 20v
UTE1B
pin 44 BAT_VOLT 11v
pin 45 VREGIN20 20v
VCC3SW missing 0v
I think the problem is that I lost the voltage at PQ0008 pon 1 -PWRSHUTDOWN which should have been high which was picked up by R9512 VCC3SW, thank you very much for your help
PF0002 20v
PQ0005
pin 5 20v
pin 1.2.3 19.8v
pin 4 19.8
resistance
source & drain 2,4 m
source & gate 100k
PQ0006
pin 1.2.3 19.8v
pin 4 19.8v
pin 5.6.7.8 0v missing
resitance
drain 5.6.7.8 1,2m
source & drain 2,4 m
source & gate 100k
PQ0007
pin 1 3.3v
pin 2 2.5v
pin 3 19v
PQ0008
pin 1 0v missing -PWRSHUTDOWN
pin 2 gnd
pin 3 0v
resistance pin 1 600k
F9502 20v
UTE1B
pin 44 BAT_VOLT 11v
pin 45 VREGIN20 20v
VCC3SW missing 0v
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