Panasonic KX-TEB308CA / KX-TE82460X / KX-TE82493X / KX-A227X Service Manual ▷ View online
105
KX-TEB308CA/KX-TE82460X/KX-TE82493X/KX-A227X
DG
+3.3V
+2.5V
R64
220
+3.3V
+3.3V
+3.3V
C42
+3.3V
C41
1u
C30
2.2u
DG
+3.3V
C40
2.2u
+3.3V
IC8
DCLK_0
11
nDR_0
12
14 STD_0
13 nCD_0
10 DATA_0
18 DATA_1
26 DATA_2
33 DATA_3
18 DATA_1
26 DATA_2
33 DATA_3
DCLK_2
27
DCLK_1
19
DCLK_3
34
nDR_1
21
nDR_2
28
nDR_3
38
23 STD_1
30 STD_2
41 STD_3
30 STD_2
41 STD_3
50 nPT_0
52 nPT_1
53 nPT_2
54 nPT_3
52 nPT_1
53 nPT_2
54 nPT_3
45 PDATA
nPTCS_0
47
46 PCLK
48 nPTCS_1
83
AO
84
A1
85
A2
86
A3
D0 92
93
D1
94
D2
95
D3
96
D4
97
D5
98
D6
99
D7
79
nRD
78
nCS
81
nRST
88
nWR
76
CLKIN
22 nCD_1
29 nCD_2
40 nCD_3
29 nCD_2
40 nCD_3
17 TDET_0
25 TDET_1
32 TDET_2
43 TDET_3
25 TDET_1
32 TDET_2
43 TDET_3
15 FSK_0
24 FSK_1
31 FSK_2
42 FSK_3
24 FSK_1
31 FSK_2
42 FSK_3
55
P0
56
P1
59
P2
60
P3
61
P4
62
P5
63
P6
64
P7
65
P8
66
P9
70
P10
71
P11
72
P12
73
P13
74
P14
75
P15
4
TXD_1
3
TXD_0
5
TXD_2
6
TXD_3
35
VCCA35
57
VCCA57
67
VCCA67
90
VCCA90
37 N.C37
80 E45/nE43
39 HCLK
87 CLKA
89 N.C89
87 CLKA
89 N.C89
7
TMS
16 TRST
49 TDO
49 TDO
100 TCK
8
VCCI8
20
VCCI20
44
VCCI44
58
VCCI58
82
VCCI82
51
GND51
68
GND68
69
GND69
91
GND91
9
GND9
36
GND36
1
GND1
77
CLKSEL
2
A4
C56
1u
C55
2.2u
C57
0.1u
0.1u
+3.3V
IC17
8
4
C43
C44
C31
1u
C46
C45
C32
C33
C34
C35
0.1u
+3.3V
DG
+3.3V
+2.5V
XTP_+2.5V
XTP_20M
XTP_DG
XTP_+3.3V
CID[3]
DG
DG
CN1
Call ID1 Card
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
CID[2]
+3.3V
DG
CID[1]
IC17
3
5
X2
20.000MHz
IC17
6
2
IC17
1
7
IC19
1
VIN
2
Vss
3
CE
4
NC
5
VOUT
DG
C60
1u
C62
2.2u
C63
1.0u
C61
0.1
RA6
220
4
3
2
1
8
7
6
5
7
6
5
RA7
22
4
3
2
1
8
7
6
5
7
6
5
RA8
22
4
3
2
1
8
7
6
5
7
6
5
220
R10
220
R11
220
R12
220
R13
680
R83
22
R86
1M
R82
R29C
270KF
R29B
270KF
R29A
270KF
10K
R50
10K
R43
12P
C59
0.1
C24
10P
C58
10K
R57
FIL3
1
2
3
FIL2
1
2
3
FIL5
1
2
3
FIL1
1
2
3
0
R54
IC16
8
4
+3.3V
C7
0.1u
FIl8
1
2
3
22
R32
C6
1u
1u
C5
2.2u
IC16
3
5
1M
R30
12P
C3
IC16
1
7
X3
4.0MHz
12P
C4
IC16
6
2
3.3k
R31
J12
N.C
J17
NC
J14
0
J13
0
J11
0
J10
0
TP88
TP128
TP180
TP112
TP161
TP90
TP130
TP60
TP113
TP158
TP89
TP129
TP171
TP160
TP66
TP91
TP135
TP173
TP159
TP92
TP132
TP176
TP126
TP94
TP134
TP183
TP127
TP93
TP133
TP124
TP170
TP115
TP95
TP136
TP69
TP144
TP125
TP114
TP96
TP138
TP68
TP145
TP59
TP116
TP98
TP139
TP73
TP143
TP57
TP117
TP97
TP137
TP142
TP58
TP118
TP99
TP140
TP146
TP181
TP100
TP141
TP77
TP50
TP70
TP102
TP175
TP149
TP79
TP51
TP101
TP168
TP148
TP78
TP52
TP103
TP147
TP174
TP80
TP165
TP106
TP153
TP71
TP82
TP123
TP162
TP53
TP104
TP150
TP169
TP122
TP81
TP61
TP72
TP105
TP152
TP83
TP172
TP120
TP62
TP54
TP107
TP151
TP84
TP178
TP63
TP121
TP55
TP110
TP157
TP166
TP86
TP184
TP64
TP119
TP49
TP108
TP56
TP154
TP167
TP85
TP65
TP179
TP109
TP156
TP87
TP131
TP76
TP177
TP74
TP111
TP155
FIL4
1
2
3
FIL7
1
2
3
IC7
INP1
1
INM1
2
GS1
3
TEST1
4
INP2
5
INM2
6
GS2
7
VREF
8
INP3
9
INM3
10
GS3
11
TEST2
12
INP4
13
INM4
14
GS4
15
GTSEL1
16
GTSEL2
17
Vss
18
Vdd 19
OSC0 20
OSCI 21
CLKSEL 22
nREST 23
TOE1 24
TOE2 25
TOE3 26
TOE4 27
Q1 28
Q2 29
Q3 30
Q4 31
EST/STD1 32
EST/STD2 33
EST/STD3 34
EST/STD4 35
S/nESEL 36
N.C
R53
N.C
R41
N.C
R40
N.C
R55
N.C
R14
10K
R15
+3.3V
10K
R16
+3.3V
10K
R17
+3.3V
10K
R19
+3.3V
DG
+3.3V
J16
0
XTP_4M
J15
0
10K
R18
DG
RA3
220
1
2
3
4
2
3
4
5
6
7
8
RA4
10K
4 3 2 1
8
7
6
5
+3.3V
RA5
10K
1 2 3 4
5
6
7
8
C71
0.01u
C74
0.01u
C73
0.01u
C80
0.01u
C79
0.01u
C76
0.01u
DG
C72
0.01u
C77
0.01u
C75
0.01u
C78
0.01u
0.01u
C64
DG
TP188
TP187
TP189
TP190
TP191
TP193
TP182
C16A
0.022
+3.3V
+3.3V
C16B
0.022
C16C
0.022
+3.3V
10K
R84
+3.3V
+3.3V
RA2
10K
10K
1
2
3
4
5
6
7
8
6
7
8
IC2A
8
4
IC2B
8
4
IC2C
8
4
TP231
TP232
TP233
NRESET,Q[0-3],STD[0-2],TOE[0-3]
LA[0]
LA[4]
LD[4]
LD[0]
STD[2]
Q[3]
Q[2]
Q[0]
Q[1]
TOE[2]
TOE[1]
TOE[0]
TOE[3]
TOE[3]
TOE[2]
TOE[1]
TOE[0]
DATA_[0]
DATA_[1]
DATA_[2]
DCLK_[1]
DCLK_[2]
DCLK_[0]
nDR_[1]
nDR_[2]
nDR_[0]
STD_[1]
STD_[2]
STD_[0]
nCD_[1]
nCD_[2]
nCD_[0]
FSK_[1]
FSK_[2]
FSK_[0]
A[0]
A[4]
D[4]
D[0]
NCS_CID1
LA[1]
A[1]
LA[2]
A[2]
LA[3]
A[3]
LD[1]
D[1]
LD[3]
D[3]
LD[2]
D[2]
D[7]
LD[5]
D[5]
LD[7]
LD[6]
D[6]
NPAY_CID
STD[0]
STD[1]
Q[0]
Q[1]
Q[1]
Q[2]
Q[3]
Q[3]
STD[2]
STD[1]
STD[0]
NIORD
NIOWR
NRESET
NRESET
0.1u
0.1u 0.1u
0.1u
0.1u
0.1u
0.1u
0.1u
(1)
(2)
(3)
(4)
(5)
(6)
(7)
KX-TE82493X SCHEMATIC DIAGRAM
DTMF Receiver IC
20.00MHz
4.096MHz
106
KX-TEB308CA/KX-TE82460X/KX-TE82493X/KX-A227X
16.7. Printed Circuit Board
16.7.1. Component View
16.7.2. Bottom View
PbF
KX-TE82493/TA82493
CID
KX-TE82493X COMPONENT VIEW
C20C
C20B
C20A
C21A
C21C
J10
J11
C7
C77
R40
R41 18
FIL7
IC7
IC16
IC19
C24
C43
C32
C33
R32
C61
C62
C63
R50
CN1
30
1
C64
R24A
1
25
26
50
51
R17
J17
RA2
FIL4
FIL1
FIL3
R16
C45
R54
C40
R15
X2
IC17
R83
75
76
IC8
R24B
IC2C
D3C
D3B
D3A
IC2B
IC2A
R24C
C14C
C19C
C14A
C14B
R22A
R57
C41
C46
C76
R22B
R22C
C19B
C19A
R10
R12
C21B
C71
C73
J12
R43
X1
R27B
R27A
R29A
R29B
R29C
36
RA3
RA4
C72
C58
C55
C57
C56
R82
C59
R18
C44
R86
C35
R19
RA5
X3
R27C
RA7
RA8
RA6
C7C
R7C
D1C
C6C
R5C
C66
R8B
R10B
C7B
R7B
D1B
C6B
C7A
C65
R65
R8A
R10A
R7A
C6A
R1
1A
R5A
D1A
R10C
R8C
C80
R11C
R66
C18B
C17B
C4
C31
C60
DG
+3.3V
20M
D2B
D2A
R17B
R19B
J15
J16
FIL5
R19A
R17A
1
C13A
C13B
C10B
C10C
C13C
13
12
FIL8
FIL2
C5
C6
C3
C15B
C42
C18A
C34
C17A
C16C
C16B
C16A
R23C
R25C
R25B
R35C
R35B
R35A
R55
J14
C78
J13
C15C
R26B
R20A
R20B
R20C
R33A
R23A R26A
R14C
R19C
D2C
R34A
R33B
R33C
R34B
R26C
R34C
C18C
C15A
C30
R14A
R31
C10A
IC1A
IC1B
R14B
R17C
R84
R5B
R11B
3.58M
IC1C
R30
C17C
C74
R21C
Q1C
Q1B
Q1A
R25A
R21B
R64
R1
1
R13
R21A
R36C
R36B
R36A
C75
R53
C79
R23B
KX-TE82493X BOTTOM VIEW
PSUP1490Z*
A
107
KX-TEB308CA/KX-TE82460X/KX-TE82493X/KX-A227X
16.8. For the Schematic Diagram
Note:
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.
1. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
1. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
108
KX-TEB308CA/KX-TE82460X/KX-TE82493X/KX-A227X
16.9. IC Data
16.9.1. IC8
Pin No.
Pin Name
I/O
Description
13
NCD[0]
In
ESK Carrier Detection Flag
22
NCD[1]
In
ESK Carrier Detection Flag
29
NCD[2]
In
ESK Carrier Detection Flag
40
-
In
Reserve
14
NSTD[0]
In
Alert Signal of CID Device
23
NSTD[1]
In
Alert Signal of CID Device
30
NSTD[2]
In
Alert Signal of CID Device
41
-
In
Reserve
17
TD[0]
In
Stutter Tone Detection Signal
25
TD[1]
In
Stutter Tone Detection Signal
32
TD[2]
In
Stutter Tone Detection Signal
43
-
In
Reserve
-
-
-
-
-
-
-
-
-
-
-
-
55
Q[0]
In
DTMF Receiving Data
56
Q[1]
In
59
Q[2]
In
60
Q[3]
In
61
STD[0]
In
DTMF Status
62
STD[1]
In
63
STD[2]
In
64
NPT_CID
In
Type of Card; 0: Pay Tone Card, 1: CTD Card
65
TOE[0]
Out
DTMF Output Enable
66
TOE[1]
Out
70
TOE[2]
Out
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