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24. USB1 problem
23. LAN problem
LAN Detect?
LAN
N
23/30
Y
AVDD = 5V?
Check L21,C166,C163,D21
Y
N
J3 1pin = 5V?
USB1
N
24/30
Y
Check L3,C3,C4,C8,F501
N
Y
Check R502,R503
,USBPD0- OK?
N
Y
Check L7,C501,C505
J8 1pin = 5V?
USB2
N
Y
Check L523,C616
N
Y
Check R602,R603
,USBPD1- OK?
N
Y
USB HUB problem
USB_OC#1
3.3V?
USB_OC#0
3.3V?
Check L524,L43,
C617,C618
Check
U510,R557,R558,R158,
R159,C539,C540
Check
J3,J4,F2,F3,F4,F5,J7,R187,
R188,R192,R193,U21,C212,
C206,R189,R194,R178,R179
Check
U20,L22,OSC1,R166,R165,
R156,U18,R178,R505,R191,
R183,R181,L24
Содержание PC-AX40
Страница 51: ...PARTS LAYOUT 1 M B COMPONENT SIDE ...
Страница 52: ...SOLDER SIDE 2 M B ...
Страница 53: ...COMPONENT SIDE 3 DD ...
Страница 54: ...SOLDER SIDE 4 DD ...