Panasonic KX-TA1232 Service Manual page 225

R9
10K
IC20
C31
8 1
0.1
13 DR RO+
2
10 DT RO-
PDI
11 3
MCLK P1
9
12 BCLKR
BCLKT
CP[16] 7
14 FSR
4
FST PO-
6 5
VDD PO+
19
TG+
18
TG-
15
VSS
R59
68K
17
TG
20
VAG
TRANSMITTING DTMF:
C :5V
X :0V
R49
IC61
10K C42
8 1
0.1
13 DR RO+
2
10 DT RO-
PDI
11 3
MCLK P1
9
12 BCLKR
R50
BCLKT
CP[17] 7
47K
14 FSR
4
FST PO-
6 5
VDD PO+
19
TG+
18
TG-
15
VSS
R51
5.6K
17
TG
20
VAG
IC21
8 1
13 DR RO+
2
10 DT RO-
PDI
11 3
MCLK P1
9
12 BCLKR
BCLKT
CP[18] 7
14 FSR
4
FST PO-
6 5
VDD PO+
19
TG+
18
TG-
15
VSS
17
TG
20
VAG
IC17
8 1
13 DR RO+
2
10 DT RO-
PDI
11 3
MCLK P1
9
12 BCLKR
BCLKT
CP[19] 7
14 FSR
4
FST PO-
6 5
VDD PO+
19
TG+
18
TG-
15
VSS
R66
5.6K
17
TG
20
VAG
+5B
R32
22K
R30
0
R31
No Mounted
IC101
12
11
13
IC101
IC101
9
8
10
C33
0.1
IC13
11
VIN2
12
VIN1
6
CLK
10
D
7
XLS
3
LD
2
R
1
W
33K -5V
R58
IC15
C10
11
No Mounted
VIN2
12
VIN1
6
CLK
10
D
7
XLS
3
LD
2
R
1
W
No Mounted
R10 R11
+12V
C6
IC57
No Mounted
IC73
6
Q7
11
CLR
C12
No Mounted NOTCHT FILTER
C34
620HzCut
0.1
R52
18K
IC14
11
VIN2 VOUT
12
C11 VIN1
No Mounted
V+
6
CLK
10
D
7
XLS
3
LD V-
2
R
1
W GND
-5V
IC16
11
VIN2 VOUT
12
VIN1
V+
6
CLK
10
D
7
XLS
3
LD V-
2
C32 R
1
0.1 W GND
No Mounted
R13 R14
R62 C8
+12V
33K
C15
No Mounted
IC58
No Mounted
C120
180P
R91
470K
+5B
R83
3.9K
6 8
5
4
C28
0.1
C121
180P
R92
470K
R84
3.9K
2
R67
3
18K
C16
No Mounted
C124
180P
R95
470K
R87
3.9K
6 8
5
4
C125
180P
R96
470K
R88
3.9K
2
3
IC76
+5R +5B
13
11
14 14
IC76
9
7 7
5
NOTCHT FILTER
620HzCut
IC9
C24 R3
0.01 100K
9 2
VOUT PBT PBTO
1
GSI
D1
14 3
V+ R4 PBI D2
4
100K
SG D3
12
X2
D4
8
V- AD0
SCLK
13 11
GND X1
+5B
CS
9
VDD
R/W
9 8
VOUT AG
10
DG
14 13
V+ CLK0
DTMF TRANSCEIVER/
8
V- RECEIVING
13
GND
+5B
TRANSMITTING DTMF:
R12
10
CLK
IC10
C25 R7
0.01 100K
9 2
PBT PBTO
D1
14
D2
1
GSI D3
C9 R8
D4
100P 100K
8 12
X2
11
X1
13 3
+5B
PBI AD0
4
SG SCLK
9
VDD
CS
R/W
9 8
AG
10
DG
14
DTMF TRANSCEIVER/
8
RECEIVING
13
+5B
R15
TONE DETECTOR CIRCUIT
+5B
C35
0.022
C105 R72
D15
0.1 1K
7 3
IC24
5
IC28
2
R172
C95
12
R64 4
-5 No Mounted
0.022
82K
C106 R73
D16
0.1 1K
1
IC24
7
IC28
1
R173
C96
No Mounted R65 6
0.022
82K
+5B
C109 R76
D17
0.1 1K
7
IC24
11
IC30
13
-5 R174
C99
10
R68
No Mounted
0.022
82K
C110 R77
D18
0.1 1K
1
IC24
9
IC30
14
R175
C100
R69
No Mounted 8
0.022
82K
C97
0.1
R98 R99
1.0K 100K
IC77
+5B +5B
13
11
14 16
IC77 IC73
9
7 8
5
24
21
D[0]
20 D[1]
19
D[2]
18
D[3]
16 A[0]
14
E
15 #CS[1]
17 R/#W
23
24
21
D[4]
20 D[5]
19
D[6]
18
D[7]
16 A[0]
14
E
15 #CS[1]
IC111
17
R/#W
A[0]
10
A0
23
A[1]
9
A1
A[2]
8
A2
A[3] 7
A3
A[4]
6
A4
A[5]
5
A5
A[6]
4
A6
A[7]
3
A7
A[8]
25
A8
A[9]
24
A9
A[10]
21
A10
A[11]
23
A11
A[12]
2
A12
A[13]
26
A13
A[14]
27
A14
20
CS
22
OE
+5B
R56
10K
DETA[0]
+5B
DETA[1]
+5B
DETB[0]
+5B
DETB[1]
IC75
+5B
10
P 12
14
D
IC74
11
7 Q
C
13
D[0]
11
DO0
D[1]
12
DO1
D[2]
13
DO2
15 D[3]
DO3
D[4]
16
DO4
D[5]
17
DO5
18 D[6]
DO6
D[7]
19
DO7
+5B
1
VPP
28
VCC
14
GND