146
8575
8575
A N/B Maintenance
A N/B Maintenance
4
3
2
1
R504
15K
R505
15K
USBP0+
USBP0-
4
3
2
1
R508
15K
R509
15K
USBP1+
USBP1-
8.9 USB Test Error - 1
An error occurs when a USB I/O device is installed.
U14
MuTIOL
Media I/O
Controller
SiS961
P
16
C86
100P
USBP0_P
USBP0_N
C87
22P
C122
100P
USBP1_P
USBP1_N
C121
22P
C83
100P
USBP3_P
USBP3_N
C84
22P
C126
100P
USBP5_P
USBP5_N
C125
22P
R147
22
R148
22
USBP0+
USBP0-
R75
22
R158
22
USBP1+
USBP1-
R142
22
R143
22
USBP3+
USBP3-
R161
22
R163
22
USBP5+
USBP5-
+3V
L523
120Z/100M
C744
0.1µ
USBVDD
USBVSS
C745
1µ
C743
10µ
USBCLK_SB
From U508 clock generator
USB_OC0_1#
USB_OC3_5#
OC0,1#
OC3,5#
50
48
32
34
26
28
14
16
1
3
J7 PJ2
P
27
+3V
R516
10K
3
2
1
-USBOC0_1
R506
33K
R518
47K
C534
1000P
L524
120Z/100M
C506
0.1µ
R3
33K
R5
47K
C9
1000P
L516
120Z/100M
C517
0.1µ
VIN0
VIN1
3
4
+5V
C10
1µ
C8
1µ
VOUT1
VOUT0
U3
P
2
5
1
USB0VCC5
-USBOC0
-USBOC1
D504
BAW56
USB0VCC5
-USBOC1
L509
600Z/100M
L518
600Z/100M
1
3
2
4
GND
1
3
2
GND
JO512
4
GND_USB
GND_USB
DC Power Board
P
2
P
2
P
2
J5
J7
R888
0
R886
0
USBP_0-
R889
0
R887
0
USBP_1-
R893
0
R891
0
USBP_3-
R892
0
R890
0
USBP_5-