Usb Port Test Error - Prestigio CAVALIERE 141 Technical & Service Manual

Prestigio Cavaliere 141
8.10 USB Test Error---(1)
Symptom:
An error occurs when a USB I/O device is installed.
Mother Board
P
17
USB_OC0#
U516
USBP0+
South-
Bridge
USBP0-
SiS961
USBP4+
USBP4-
P
32
25,27,29
+5V_P
R650 0
RP18 27*4
8 1 D/USBP0+
D/USBP0-
7 2
D/USBP4+
6 3
D/USBP4-
5 4
CP2
47P*4
+5V_P
JS2
3
VOUT0
VIN0
U501
4
J3 J1 VIN1
VOUT1
USB_OC0#
45
45
C1
1000P
26,28,30
+5V_P
49
USBP0+
49
51
USBP0-
51
55
USBP4+
55
USBP4-
57
57
R503 R504 R501
15K 15K 15K
118
Technical Service Manual
Charge Board
L505
120Z/100M
1
5
C503
0.1U
R2
33K
R1
47K
L508 120Z/100M
L506 120Z/100M
L511 120Z/100M
L509 120Z/100M
L504
R502
120Z/100M
15K
C502
0.1U
J503
1
3
2
A3
A2
A1
JO504
JO3
GND GND_USB