Read Panasonic KX-TDA620BX (serv.man8) Service Manual Supplement online
44
KX-TDA620 Series
12.5. BUS-S Board No.4
4
Normal 3.3V
Normal 3.3V
KX-TDA620 Series BUS-S BOARD SCHEMATIC DIAGRAM No.4
Normal 3.3V
Normal 3.3V
5
3.3V
0V
D
F
E
C
B
A
H
G
4
7
6
5
3
2
8
11
10
9
LA[3]
LA[1-5]
LA[1]
LA[4]
LA[5]
LD[0]
LD[1]
LD[2]
LD[3]
LD[4]
LD[5]
LD[6]
LD[7]
LD[8]
LD[9]
LD[10]
LD[11]
LD[12]
LD[13]
LD[14]
LD[15]
LA[2]
LD[0-15]
1:3B;3:11A;5:1A
nDIAG_CLINK
1:5G
LA[1-5]
1:3A;3:11A;5:1B
C421
0.01u
DG
DG
G
D
G
D
+3.3V
DG
nCS_CCLINK
2:5D;3:1C;11E;7:12D
nCMIBYP
1:5G
C402
0.01u
DG
+3.3V
+3.3V
C401
0.01u
DG
+3.3V
C403
0.01u
DG
+3.3V
C411
0.01u
DG
C416
0.01u
+3.3V
DG
DG
+3.3V
DG
C419
0.01u
C415
220P
DG
+3.3V
C407
0.01u
+3.3V
DG
DG
DG
C414
0.01u
DG
+3.3V
+3.3V
DG
+3.3V
C409
0.01u
+3.3V
DG
nHUBON
1:5G
L_nRD
3:7H;3:8C;9D
nWR_CCLINK
11E
nBSRSTOUT
1:8A;2:5D;8E;5:1D
DG
DG
DG
J403
NC
J402
NC
R403
68
+3.3V
R402
68
CCLINK_TXD
6:11G
CCLINK_TXEN
6:11G
CCLINK_RXD
6:11G
IC410
17
TP4056
TP4046
TP4047
TP4048
TP4049
TP4050
TP4052
TP4053
TP4054
TP4055
TP4051
TP4039
TP4040
TP4041
TP4042
TP4043
TP4044
TP
40
33
TP
40
32
TP
40
30
TP
40
29
TP
40
28
TP
40
27
TP
40
19
TP
40
10
TP
40
08
TP
40
23
TP4006
TP4004
TP4003
TP
40
34
TP
40
36
TP
40
37
TP
40
38
TP
40
22
TP
40
09
TP
40
11
TP
40
12
nWAIT_NEXUS
1:4D
CLK_16M 1:9D;2:5G
nPWRST 1:4D;2:7H;3:7G
RING_SYNC 1:9G
C426
0.01u
C427
0.01u
C428
0.01u
C435
0.01u
C439
0.01u
C442
0.01u
C431
0.01u
C443
0.01u
L_R/nW
3:2B;3:8D;5:1B
L_nRD
3:7H;3:8C;1D
C436
0.01u
J401
+3.3V
TP4045
DG
+3.3V
nIRQ_CCLINK
2:11D
IC410
62
TP4001
TP4007
TP
40
13
TP
40
14
TP
40
16
TP
40
17
8
5
0
4
P
T
7
5
0
4
P
T
TP4059
R401
47
R407
68
R408
1M
R409
47
FIL401
1
2
3
X401
40MHz
1
2
3
4
C423
22p
C424
22p
S_nRESET
6:11D
S_RING_SYNC
6:11D
S_ESLFID[0]
6:2F
S_ESLFID[1]
6:2E
ESLFID[1]
2:4D
ESLFID[0]
2:4D
RXD2
2:9H
CPU_RXD2
2:9H
nRXD2EN
2:4C
nRDY
2:5E
L_nWE
3:11F
R413
68
BM_nRESET
2:5H
nCS_CTSW
2:5E;3:1D;5:1B;7:10D
nCS_CCLINK
2:5D;3:1C;1B;7:12D
nWR_CCLINK
1D
R412
68
nDS
5:1B
R411
68
+3.3V
nDTACK
5:1B
TP4061
FIL402
1
2
3
IC410
3
5
C425
0.01u
IC410
8
4
+3.3V
DG
TP4134
TP4135
R417
33
nBSRSTOUT
1:8A;2:5D;1G;5:1D
IC113
11
CLK
12
D
9
Q
10
SET
13
RESET
8
Q
+3.3V
R415
68
CLK_20M
5:2F
TP4096
IC113
14
7
C445
0.01u
DG
+3.3V
FIL403
1
2
3
DG
DG
DG
C774
C775
nCS5
1:4C;2:5E;3:1D;7:12D
+3.3V
RA401
10K
1
2
3
4
2
3
4
5
6
7
8
+3.3V
RA402
10K
1
2
3
4
2
3
4
5
6
7
8
+3.3V
R406
10K
R420
10K
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
R419
10K
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
R405
10K
R404
10K
CKIO_NEXUS 1:4D;2:3F
R418
10K
R414
10K
R410
1K
CLK_20M
CLK_40M
IC401
1
VDD1
2
A3/PO3
3
A4/PO4
4
A5/PO5
5
NC5
6
NC6
7
nDSINV/CMIERRMD
8
nRD(nDS)/PO6
9
nTMODE
10
nWR(DIR)/PO7
11
nSMODE
12
VSS12
13
D0(AD0)/PI0(nPISTR)
14
D1(AD1)/PI1
15
D2(AD2)/PI2
16
D3(AD3)/PI3
17
VDD17
18
D4(AD4)/PI4
19
D5(AD5)/PI5
20
VSS20
21
D6/PI6
22
D7/PI7
23
D8/PI8
24
D9/PI9
25
VDD25
26
D10/PI10
27
D11/PI11
28
VSS28
29
D12/PI12
30
D13/PI13
31
NC31
32
VSS32
33
VDD33
34
D14/PI14
35
D15/PI15
36
NC36
37
NC37
38
nRESET
39
VSS39
40
nINTR/NSTUNLOC
41
TXEN
42
TXD
43
TXEN2
44
VSS44
45
TXENPOL
46
RXIN
47
ET1
48
RXIN2
49
VDD49
50
nDIAG
51
nSTALONE
52
NSTPRE0
53
NSTPRE1
54
NSTPRE2
55
NC55
56
PS0
57
PS1
58
NC58
59
NID0
60
NID1
61
NID2
62
NID3
63
NID4
64
VSS64
65
VDD65
66
NC66
67
MAXID0
68
MAXID1
69
MAXID2
70
MAXID3
71
MAXID4
72
NC72
73
CKP0
74
CKP1
75
CKP2
76
VSS76
77
NC77
78
NC78
79
NC79
80
MCKIN
81
VDD81
82
X1
83
X2
84
VSS84
85
nNSTCOUT
86
FLASHO
87
(Open)/PO8
88
(Open)/PO9
89
(Open)/PO10
90
VSS90
91
(Open)/PO11
92
(Open)/PO12
93
(Open)/PO13
94
(Open)/PO14
95
(Open)/PO15
96
VSS96
97
VDD97
98
WPRE0/SPRE0
99
WPRE1/SPRE1
100
WPRE2/SPRE2
101
NC101
102
nTEST0
103
nTEST1
104
nTEST2
105
nTEST3
106
(High)/NSTC0
107
nEHRD/NSTC1
108
VSS108
109
nEHWR/NSTC2
110
(High)/NSTC3
111
nCMIBYP
112
nOPMD
113
VDD113
114
nHUBON
115
NC115
116
nMUX/SCM0
117
nRWM/SCM1
118
W16/SCM2
119
nSWAP/SCM3
120
nCS/SCM4
121
VSS121
122
NC122
123
NC123
124
A0/PO0(nPOSTR)
125
VDD125
126
A1/PO1
127
A2(ALE)/PO2
128
VSS128
X402
40MHz
NC
+3.3V
+3.3V
C429
0.01u
G
D
G
D
R422
0
R423
NC
+3.3V
DG
R424
4.7K
R425
2.2K
DG
+3.3V
J404
NC
J405
J406
R426
10k
+3.3V
C446
0.1u
DG
TP4126
TP4127
TP4132
TP4130
TP4125
TP4131
TP4063
TP4062
TP4128
TP4136
TP4137
TP4082
DG-
TCK
TMS
+3.3V-
TDO
TDI
IC402
1
ESLFID_1
2
ESLFID_0
3
CPU_RXD2
4
RXD2
5
VCC
6
GND
7
nRXD2_EN
8
9
10
11
12
13
19
20
21
BM_nRESET
22
GND
23
VCC
24
nWAIT_NEXUS
25
nRDY
26
VCC
27
L_nWE
28
nCS_NEXUS
29
L_nRD
30
L_RnW
31
32
33
GND
34
35
36
37
38
39
40
61
NC
62
nDTACK
63
64
65
66
67
68
69
70
71
72
GND
73
VCC
74
75
76
77
78
79
GND
80
VCC
81
PROGRAMN/RESET
82
JTAGENB
83
84
RING_SYNC
85
86
CLKIO/nRST
87
88
SYSCLK
89
90
TMS
91
TCK
92
GND
93
VCC
94
TDI
95
TDO
96
97
98
99
nPWRST
100
VCC
15
17
14
16
18
41
42
S_ESLFID_1
43
S_ESLFID_0
44
GND
45
S_RING_SYNC
46
VCC
47
S_nRESET
48
49
50
15
C
C
V
52
53
54
55
VCC
56
GND
57
nCS_CTSW
58
nCS_CCLNK
59
nWR_CCLNK
60
nDS
In
te
rn
al
P
.U
.
In
te
rn
al
P
.U
.
In
te
rn
al
P
.U
.
In
te
rn
al
P
.U
.
In
te
rn
al
P
.U
.
In
te
rn
al
P
.U
.
In
te
rn
al
P
.U
.
Internal P.U.
In
te
rn
al
P
.U
.
In
te
rn
al
P
.U
.
In
te
rn
al
P
.U
.
In
te
rn
al
P
.U
.
In
te
rn
al
P
.U
.
In
te
rn
al
P
.U
.
In
te
rn
al
P
.U
.
In
te
rn
al
P
.U
.
In
te
rn
al
P
.U
.
In
te
rn
al
P
.U
.
Circ-Link
Internal P.U.
Internal P.U.
In
te
rn
al
P
.U
.
Internal P.U.
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