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25. USB2 problem
USB3
J509 1pin = 5V?
Y
USB_OC#2
3.3V?
Y
USBPD2+,USBPD2- OK?
N
USB HUB problem
26. USB HUB problem
USB HUB
+3V_USBHUB = 3.3V?
Y
USBP1+,USBP1- OK?
Y
Check
R555,R556,R567,R568,
R601,R595,R589,U519
N
Check L513,C568,C585,
F504
N
Check R608,R621
Y
Check L510,C581,C575
N
Check JS502
N
Check U510
26/30
USB4
N
J501 1pin = 5V?
Y
Check L2,C502,C1,F1
N
USB_OC#3
3.3V?
Y
Y
USBPD3+,USBPD3- OK?
N
USB HUB problem
27. IEEE1394 problem
IEEE1394
IEEE1394 Device
detect ?
N
R215,R218,R219,R210,R208,
C242,C230,C235,R217,R214,
PHYVDD = 3V?
PHYAVDD = 3V?
Y
Check
U19,U511,R69,R65,R548,
R561,R562,R517,C529,
R180,X2,C168,C167,R121,
R124,R530,R131
Check R1,R2
Check L1,C2,C3
25/30
Y
Check
R207,R209,J508
N
Check L505,L25
27/30
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