Panasonic KX-TES824LA Service Manual page 285

(1)
DTMF Receiver IC
R43
IC7
10K
TP57 S/nESEL 36
1 INP1
TP61
TP58 EST/STD4 35
2 INM1
(2)
R29A
TP62
TP59 EST/STD3 34
3 GS1
270KF TP63
EST/STD2 33
4 TEST1
TP64
EST/STD1 32
5 INP2
TP50
TP65
Q4 31
6 INM2
(3)
R29B TP51
Q3 30
7 GS2
270KF Q2 29
8 VREF
Q1 28
9 INP3
TP52
TOE4 27
10 INM3
(4)
R29C TP53
TOE3 26
11 GS3
270KF
TOE2 25
12 TEST2
TOE1 24
13 INP4
+3.3V
nREST 23
TP54 14 INM4
CLKSEL 22
R40 TP55
15 GS4
N.C
OSCI 21
TP56 16 GTSEL1
TP49
OSC0 20
J10 +3.3V 17 GTSEL2
TP66
0
Vdd 19
18
Vss
R41
N.C FIL2
1
J11
C24 TP60
0
2
0.1
(5)
J17
NC
IC17 IC17
TP69
1
1 7 6 2
TP72
2 FIL4
R82
TP68
1M
680
R83
IC17
TP73
X2
TP70
3 5
20.000MHz
C58 C59
12P
10P
TP71
8
C55 C56
IC17
2.2u
1u
4
(6)
IC2A
(7)
DATA_[0] TP76 10 DATA_0
TP77
DATA_[1] 18 DATA_1
DATA_[2] TP78 26 DATA_2
R15 TP79
33 DATA_3
+3.3V
10K
DCLK_[0]
TP80 11
DCLK_0
DCLK_[1] 19
TP81
DCLK_1
DCLK_[2] TP82 27
DCLK_2
R16
TP83 34
DCLK_3
+3.3V
10K
TP84 12
nDR_[0]
nDR_0
21
TP85
nDR_[1]
nDR_1
TP86 28
nDR_[2]
nDR_2
R17 38
TP87
nDR_3
+3.3V
10K
STD_[0] TP88 14 STD_0
STD_[1] TP89 23 STD_1
STD_[2] TP90 30 STD_2
R18 TP91 41 STD_3
10K
DG
+3.3V
nCD_[0] TP92 13 nCD_0
nCD_[1] TP93 22 nCD_1
nCD_[2] TP94 29 nCD_2
J12
N.C R19
TP95 40 nCD_3
+3.3V
10K
DG RA3
15 FSK_0
220 FSK_[0]
TP187 TP96
TP188
1 8
FSK_[1] 24 FSK_1
2 7 STD[2] TP97
3 6 STD[1]
FSK_[2] 31 FSK_2
4 5 STD[0] TP98
Q[3]
42 FSK_3
TP99
Q[2]
Q[1]
TP100 17 TDET_0
Q[0]
TP101 25 TDET_1
TOE[3]
TP102 32 TDET_2
+3.3V
TOE[2] R84
TP103 43 TDET_3
TOE[1]
+3.3V 10K
TOE[0]
TP104 50 nPT_0
5 4
3
6
TP105
NRESET 52 nPT_1
7 2
8 1
TP106 53 nPT_2
RA2
TP107 54 nPT_3
10K
45 PDATA
TP108
+3.3V
46 PCLK
TP109
47
3
nPTCS_0
TP110
48 nPTCS_1
TP111
+3.3V
R55
N.C TP112
80 E45/nE43
J13
0
DG
TP113
37 N.C37
XTP_20M
TP74
39 HCLK
3
R50
R86
87 CLKA
+3.3V
22
10K TP114
89 N.C89
TP115
+3.3V
R53
20.00MHz
N.C
7 TMS
TP116
16 TRST
TP117 49 TDO
TP118
R57
100 TCK
10K
+3.3V
R54
FIL3
0
3
1
C57
2
0.1u
+3.3V +3.3V +3.3V
IC2B
IC2C
8 8 8
C16A
C16C
C16B
0.022 0.022
0.022
4 4 4
IC8
RA6
LA[0]
83 TP124 TP168
AO
220
LA[1] 8 1
84 TP125
A1
7 2
3
85 TP126 LA[2] 6 TP170
A2
5 4
LA[3]
86 TP127 TP171
A3
R64
LA[4]
2
TP128 TP172
A4
LD[0]
D0 92 TP129 220 TP173
LD[1]
8 1 TP174
93 TP130
D1
7 2
LD[2]
3
94 TP131 6 TP175
D2
4
5
LD[3]
95 TP132 TP176
D3
RA7
96 TP133 LD[4] 22 TP177
D4
LD[5] 8 1
97 TP134 TP178
D5
7 2
LD[6] 3
98 6 TP179
TP135
D6
4
5
LD[7]
99 TP136 TP180
D7
RA8
22
R10 220
79
TP137
nRD
R11 220
88 TP138
nWR
R12 220
78 TP139
nCS
R13
81 TP140
nRST
76 220
CLKIN
NRESET
77 TP141
CLKSEL
+3.3V
55
TP142
P0
R14 +3.3V
56 TP143
P1
N.C
59 TP144
P2
4 3 2 1
60 TP145
J14
P3
0
61 TP146
5 6 7
P4
DG
62 TP147
P5
63 TP148
P6
64
TP149
P7
65 TP150
P8
NPAY_CID
66 TP151
P9
70 TP152
P10
71 TP153
P11
TP189
72
TP154
P12
1 2 3 4
RA5
73 TP155
P13
10K
8 7 6 5
74 TP156
P14
TP190
75 TP157
P15
3 TP158
TXD_0
4 TP159
TXD_1
5
TP160
TXD_2
6 TP161
TXD_3
+3.3V
FIL1
8
VCCI8 1 3
20
2
VCCI20
44
VCCI44
58
VCCI58
TP162
82
VCCI82
+2.5V
FIL5
35
VCCA35
1 3
57
VCCA57
2
67
VCCA67
C34
0.1u TP165
90
VCCA90
1
GND1
C33 C32 C31 C30
9
GND9
0.1u 0.1u 1u 2.2u
36
GND36
51
GND51
68
GND68
69
GND69
91
GND91
NRESET,Q[0-3],STD[0-2],TOE[0-3]
4.096MHz
+3.3V
FIl8
TP167
1 3
C7
C6
2
0.1u
1u
KX-TE82493X SCHEMATIC DIAGRAM
285
KX-TES824LA / KX-TEM824LA /
Call ID1 Card
TP231
CID[3]
TP232
TP169
CID[2]
TP233
CID[1]
DG
TP193
A[4]
A[3]
A[2]
A[1]
A[0]
+3.3V
C64
0.01u
NCS_CID1
DG
NIOWR
NIORD
TP181
TP182
TP183
D[7] DG
TP184
D[6]
XTP_4M
D[5]
D[4]
D[3]
D[2]
D[1]
RA4
10K
D[0]
8
Q[0]
XTP_DG
Q[1]
Q[2]
Q[3]
+3.3V
STD[0]
DG
STD[1]
STD[2]
+2.5V
XTP_+3.3V
TOE[0]
IC19
TOE[1]
TOE[2]
5 1
VIN
TOE[3]
VOUT
DG
XTP_+2.5V
2
Vss
C60
4 3
CE
1u NC
TP191
DG
DG
R32
IC16 IC16
FIL7
22
1
2 6
3 7 1
TP166 TP122
R30
TP120
2
1M
TP119
R31
X3
3.3k
4.0MHz
TP123
5 3 TP121
C3
IC16 C4
12P
12P
8
C5
IC16
2.2u
4
CN1
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