141
7321 N/B Maintenance
7321 N/B Maintenance
R524
25
R525
25
8.15 LAN Test Error
Symptom:
An error occurs when a LAN device is installed.
U24
U24
South
South
Bridge
Bridge
VT8231
VT8231
RP5 22*4
RP25 33*4
5
6
7
8
4
3
2
1
1
2
3
4
8
7
6
5
LAN_DADAIO
LAN_MRXD0
LAN_MRXD1
LAN_MRXD2
LAN_MRXD3
LAN_MTXD0
LAN_MTXD1
LAN_MTXD2
LAN_MTXD3
LAN_MRXDV
LAN_MRXER
LAN_MRXC
LAN_MTXE
LAN_MTXC
LAN_DCLK
LAN_COL
LAN_CRS
PCI_RESET#
LANPHY_PCI_RST#
LAN_TPI-
LAN_TPO-
U5
LANPHY
LSI L80227
J504
BUKRESET
Q508
2N7002
74AHC14_V
U30
H8
R614
0
C514
0.01U
+3V_STR
R615 25
R616 25
R515
75
R516
75
R514
75
R517
75
C507
1000P
R87 22
R122 22
R272 22
3
R192 22
R89 22
R174 22
R172 22
R121 22
R120 22
1
2
3
4
SEECS
SEECLK
SEEDI
SEEDO
22
21
20
19
35
36
37
38
14
18
26
40
34
10
11
12
13
44
X2
25MHz
2
3
4
1
42
58
59
54
55
1
3
6
8
15
10
11
9
16
14
PJTX+
PJTX-
PJRX+
PJRX-
8
7
6
3
U20
NM93C46M8
+3V_STR
C509
100P
4,5
1,2
R528
51
R529
51
C513
10P
C647
10P
18
7
16
16
U502
PH163112
LAN
Connector
2
4 1
U512B
U512A
Summary of Contents for MiNote 7321
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