MiTAC 7521 PLUS/N - Manual (Page 124)

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7521 7521 Plus / N N/B MAINTENANCE Plus / N N/B MAINTENANCE
8.9 USB PORT TEST ERROR
An error occurs when a USB I/O device is installed.
J508
U24
SIS
630S
SH6
R143
R142
R140
R141
C14
C25
B1
A1
B3
B2
A3
A2
B4
A4
GND1
GND2
GND3
GND4
L504
L511
USB_GND
SH21 L2 F502
USB_B1
C507
L6
+5V
R20 C506
USB_OC0#
R19
F503 USB_A1
+5V
R22
USB_OC1#
R23
RP21
L12 USBP0+ D/USBP0+ USB_B3
USBP0- D/USBP0- USB_B2
L8 D/USBP1+ USBP1+ USB_A3
D/USBP1- USBP1- USB_A2
CP7
GND