KX-NT400RU - Panasonic PBX Service Manual (repair manual). Page 61

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61
KX-NT400RU
(12)
(13)
(14)
(16)
(17)
(15)
(18)
(20)
(1
9)
(22)
(2
1)
(24)
(23)
(26)
(26)
(27)
(28)
(2
5)
(i)
(j)
(k)
(m)
(p)
(q)
(r)
(s)
(t)
(n)
KX-NT400R
U :
 MAIN BO
ARD No
.5 (4/4)
1/4
2/4
3/4
4/4
TXD[3]
RXD[0]
RXD[3]
RXD[2]
TXD[2]
TXD[0]
RXD[1]
RXD[3-0]
TXD[3-0]
TXD[1]
MDD[0]
MDD[1]
MDD[2]
MDD[3]
MDD[4]
MDD[5]
MDD[6]
MDD[7]
MDD[8]
MDD[9]
MDD[11]
MDD[12]
MDD[13]
MDD[14]
MDD[15]
MA[7]
MA[6]
MA[5]
MA[4]
MA[3]
MA[2]
MA[1]
NCS5
NCS
MDD[15-0]
NWE
MDD[10]
1
7
RXD[3-0]
006:3F,006:3F,006:3F,005:8F;005:10H;006:3F
D3.3V
RXD[0]
005:8F;005:11G;006:3F
DG
DG
D3.3V
DG
DG
DG
DG
DG
DG
LAN_IRQ
005:9A
D3.3V
DG
D3.3V
D3.3V
C547 22p
D3.3V
D3.3V
DG
D3.3V
X503
25MHz
DG
DG
D3.3V
DG
DG
TX_EN
006:4E
8
4
L502
LAN_PME
005:9A
DG
D3.3V
D3.3V
DG
CORE_1.8V
C548 22p
RXD[0]
005:10H;005:11G;006:3F
COR
E_1.8V
D3.3V
DG
DG
C556 K0.01
DG
D3.3V
RX_DV
006:3F
DG
DG
D3.3V
62
D3.3V
DG
DG
TXD[3-0]
006:4E
C553
K0.01
D3.3V
C546
33p
C545 22p
DG
1
Xin
2
GND
3
S1
4
S0
5
SSCLK
6
FASEL
7
VDD
8
XOUT
D3.3V
DG
CLK_25MHZ
006:4D
R539
0
R562
0
R535 470
R545
0
R542
12.4k(1%)
R536
1M
R538
12.0k(1%)
R560
0
R561
0
R537
22
DG
RX_CLK
006:3D
L503
D3.3V
L504
D3.3V
R580
1k
R581
10k
R582
10k
RA523
180
C558 K0.1
NC
C554
C528
K0.1
C533
K0.1
C535 K0.1
C534 K0.1
C529
K0.1
C536
K0.1
C537
K0.1
C550
Z10
C552
Z10
RA543
0
RA544
0
R543
NC
R547 33k
R548 33k
R544 33k
R540
NC
R541
NC
R546
NC
R506 33k
R553 33k
R552 33k
R507 33k
R569
10k
SD_CLK1
DG
C5001
K0.01
C5003
K0.01
C5002 K0.01
C5004 K0.01
C522
100p
C555
100p
C523 100p
C551
100p
RA547
33
RA548
33
RA545
33
RA546
33
R568
33
1
GND_CORE1
2
VREG
3
VDD_CORE3
4
VSS_PLL
5
XTAL2
6
XTAL1
7
VDD_PLL
8
VDD_REF
9
ATEST
10
RBIAS
11
VSS_REF
12
A7
13
A6
14
A5
15
A4
16
A3
17
A2
18
A1
19
GND_IO19
20
VDD_IO20
21
TX_EN
22
RXD1
23
RXD2
24
RXD3
25
RX_ER
26
RX_CLK
27
GND_IO27
28
VDD_IO28
29
RX_DV
30
MDIO
31
MDC
32
CRS
33
COL
34
GND_IO34
35
VDD_IO35
36
TXD3
37
TXD2
38
TXD1
39
TXD0
40
TX_CLK
41
GND_IO41
42
VDD_IO42
43
D15
44
D14
45
D13
46
D12
47
GND_IO47
48
VDD_IO48
49
D11
50
D10
51
D9
52
D8
53
D7
54
GND_IO54
55
VDD_IO55
56
D6
57
D5
58
D4
59
D3
60
GND_IO60
61
VDD_IO61
62
D2
63
D1
64
D0
65
VDD_CORE65
66
GND_CORE66
67
EEDIO
68
EECS
69
EECLK
70
PME
71
NC71
72
IRQ
73
AMDIX_EN
74
SPEED_SEL
75
RXD0
76
FIFO_SEL
77
VSS_A77
78
TPO-
79
TPO+
80
VSS_A80
81
VDD_A81
82
TPI-
83
TPI+
84
NC84
85
VDD_A85
86
VSS_A86
87
EXRES1
88
VSS_A88
89
VDD_A89
90
NC*2
91
NC*1
92
nRD
93
nWR
94
nCS
95
nRESET
96
GND_IO96
97
VDD_IO97
98
GPIO0/nLED1
99
GPIO1/nLED2
10
0
GPIO2/nLED3
CLK_25MHz
3
5
C549 K0.1
R576
180
C5005
K1
F
E
H
G
7
68
11
12
10
9
IC110
IC110
IC110
IC109
IC107
IC110
(23)
(21)
(22)
(23)
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