Service manual

130
8258I N/B Maintenance
8258I N/B Maintenance
Q525
DDTC144TCA
R179 0
R638 0
C637
0. 1U
C638
0.1U
AVDDL
24,30..
PJTX+
PJRX+
3
1
P15
J505
RJ45 LAN Connector
8.9 LAN Test Error-2
An error occurs when a LAN device is installed.
U514
LAN
Controller
RTL8100CL
P15
U515
South Bridge
ICH7-M
+3V
DVDD
+3V
EL540
120Z/100M
PCI_C/BE#[0..3]
PCI_AD[0..31]
PCI_PAR, PCI_PERR#, PCI_SERR#
PCI_STOP#, PCI_PME#
P11
PCICLK_LAN
LAN_RST#
1
MDI0+
MDI0-
PJTX-
PJRX-
6
2
26,41..
C635
0. 1U
C633
0.1U
+2.5V
EL543
120Z/100M
C671
0.1U
C688
0.1U
C691
0.1U
C673
0.1U
C653
0.1U
C639
0.1U
C655
0.1U
C674
0.1U
C641
0.1U
2
5
6
R631
49.9
R632
49.9
C632
0.1U
MCT3
MCT4
14
11
9
15
U510
NS681680P
P15
8
7
10
16
2
1
MDI1+
MDI1-
TX+
TX-
RX+
RX-
R633
49.9
R608
75
C582
1000P
7,8
4,5
PJ4
PJ7
R609
75
R607
75
R606
75
EL531
90Z/100M
32
14
EL530
90Z/100M
32
14
XTAL1
XTAL2
C652
22P
C651
22P
X503
25MHz
R651 1M
R634
49.9
C634
0.1U
EL541
120Z/100M
12
C636
0.1U
27
From U505
P9
PCI_DEVSEL#,PCI_FRAME#
PCI_GNT0#,PCI_REQ0#
PCI_IRDY#, PCI_TRDY#, PCI_TNTE#
PCLK_RUN#
WAKE_UP#
LAN_WAKE
R1
P12
MiTac Secret
Confidential Document