Service manual

147
8575
8575
A N/B Maintenance
A N/B Maintenance
43
21
R513
15K
R514
15K
USBP5+
USBP5-
43
21
R503
15K
R502
15K
USBP3+
USBP3-
8.9 USB Test Error - 2
An error occurs when a USB I/O device is installed.
50
48
32
34
26
28
14
16
1
3
J7 PJ2
P27
+3V
R10
10K
3
2
1
-USBOC3_5
R7
33K
R8
47K
C11
1000P
L520
120Z/100M
C525
0.1µ
R2
33K
R4
47K
C1
1000P
L504
120Z/100M
C504
0.1µ
VIN0
VIN1
3
4
+5V
C509
1µ
C3
1µ
VOUT1
VOUT0
U1
P3
5
1
-USBOC5
-USBOC3
D3
BAW56
USB5VCC5
-USBOC3
L522
600Z/100M
L508
600Z/100M
1
3
2
4
GND
1
3
2
GND
JO501
4
GND_USB
GND_USB
DC Power Board
P2
P3
P3
J8
J4
USB5VC5
U14
MuTIOL
Media I/O
Controller
SiS961
P16
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#
R888
0
R886
0
USBP_0+
USBP_0-
R889
0
R887
0
USBP_1+
USBP_1-
R893
0
R891
0
USBP_3+
USBP_3-
R892
0
R890
0
USBP_5+
USBP_5-