Service manual
Schematic Diagrams
Marvell 88E8038 B - 21
B.Schematic Diagrams
Marvell 88E8038
Sheet 20 of 34
Marvell 88E8038
MD I1 -
LAN_CT
LAN_CMT
Z2029
LAN_RX-
Z2030
RX+
LAN_RX+
Z2031
TX-
TX+
Z2033
Z2032
MD I0 -
MD I1 +
LAN_TX-
LAN_TX+
MD I0 +
G
DS
Q76
NDS352
1
2
3
4
6
5
7
8
LP1 #944CM-0051=P3
+3VS_LAN+3VS
Z2034
C765
0.1u_04
R255
4.7K_04
T
1 2
34
X1
HSX531S_25MHz
C398 0.1u_X7R_04
R74
75_1% _04
C13
0.1u_04
T
T
T
C402
0.1u_04
T
C391
0.1u_04
R256
*4.7K_04
T
C410
0.1u_04
C23
0.1u_04
T
T
C404
30p_04
C405
30p_04
B
EC
Q5
2SB1188
R292
75_1% _04
1 2
L19 *HC B2012KF-500T40
C392
0.1u_04
R291
75_1% _04
C28
0.1u_04
C14
0.1u_04
R33
49.9_1%_04
T
C24
0.1u_04
R32
49.9_1%_04
R17
4.7K_04
1 2
L24 0_08
R18
4.7K_04
Z2022
R270
49.9_1%_04
C38
*10u_12
MDI1-
C19
10u_08
C15
0.1u_04
C22
0.1u_04
T
Z2006
C417
1000p_04
C20
22u_08
MDI0-
Z2005
CTRL12
C21
0.1u_04
C397
0.1u_04
C399 0.1u_X7R_04
T
C412
10u_08
MDI0+
C396
0.1u_04
R254 *0_04
Z2007
T
RD+
1
RD-
2
CT
3
TD -
8
CT
6
TD +
7
RX+
16
CT
14
RX-
15
TX-
9
CMT
11
TX+
10
NC
4
NC
5
NC
12
NC
13
U5
LF-H80P-1
C12
0.1u_04
SCL
6
SDA
5
VCC
8
A0
1
A1
2
A2
3
WP
7
VSS
4
U24
AT24C08
Z2001
C393
0.1u_04
C395
0.1u_04
T
R76
1M_04
C11
0.1u_04
R271
49.9_1%_04
T
R75
75_1% _04
Z2024
R257 0_04
T
C433
1000p/2KV_12
R29 2K_1%_04
T
R30 4.7K_04
R15
4.7K_04
C394
22u_08
B
EC
Q41
2SB1188
R253
*4.7K_04
T
CTRL25
C49 1000p_04
C401
0.1u_04
VDD O_TT L
1
VDD
2
CTRL12
3
CTRL25
4
PERSTn
5
WAKEn
6
VDD
7
VDDO_TTL
8
SWITCH_VAUX
9
LOM_DISABLEn
10
SWIT CH_VCC
11
VAUX_AVLBL
12
VDD
13
XTALO
14
XTALI
15
RSET
16
RXP
17
RXN
18
AVDDL
19
TXP
20
TXN
21
AVDDL
22
AVDD
23
HSDACP
24
HSDACN
25
NC
26
NC
27
AVDDL
28
TSTPT
29
NC
30
NC
31
AVDDL
32
VDD
33
NC
34
NC
35
NC
36
NC
37
VPD_CLK
38
VDD
39
VDDO_TTL
40
VPD_DATA
41
PU_VDDO_TTL
42
PU_VD DO_TTL
43
VDD
44
VDDO_TTL
45
TESTMODE
46
VMAIN_AVALBL
47
VDD
48
PCI E_TXP
49
PCI E_TXN
50
AVDD L
51
AVDD L
52
PCI E_RXN
53
PCI E_RXP
54
REFCLKP
55
REFCLKN
56
AVDD L
57
VDD
58
LED_ACTn
59
LED_SPEEDn
60
VDDO_TTL
61
NC
62
LED_LINKn
63
VDD25
64
EPAD
65
88E8038
U2
88E8038
1
2
3
4
5
6
7
8
JLAN1
87212-08G0
C418
1000p_04
LAN_VDD33
LAN_VDD33
+VDD3
LAN_VDD25
LAN_VDD12
LAN_VDD25
LAN_VDD33
LAN_VDD33LAN_VDD25
LAN_VDD33
LAN_VDD25
LAN_VDD12 LAN_VDD33
MDI1+
+3VS_LAN LAN_VDD33
LAN_VDD33
+VDD3 13,14,15,16,17,27,28
PLT_RST#5,15,16,18
PCIE_TXP3_LAN15
PCI E_RXP3_LAN15
PCI_RST#15
Z2002
CLK_PCIE_LAN19
PCIE_TXN3_LAN15
PCI E_RXN3_LAN15
(¦PB4WªºµL¹]®Æ¸¹)
+3VS 2,5,8,9,10,13, 14,15,16,17,18,19,21,22,24,25,26,27
PCI E_WAKE#16,23,25
CLK_PCIE_LAN#19
Z2009
Z2008
RX-
Z2014
Z2013
Z2017
Z2016
TZ2004
TZ2003
TZ2002
TZ2001
LAN_EN23
R567
330K_04
C766
0.01u_04
Z2026
R566
100K_04
G
DS
Q77
NDS352
R568
100K_04
Z2036
G
DS
Q78
2N7002W
2.54 mm ²bªÅ°Ï
Z2027
8/16 3.A BCN
Z2020
Z2003
Z2004
Z2023
Z2021
Z2025
Z2019
Z2018
Z2015
Z2035
Z2010
Z2011
Z2012
R570 *0_04
C764
0.1u_04
C419
0.1u_04
Z2028
9/11 4.0
CTRL25
CTRL12