Panasonic KX-T7730X Service Manual page 33

(20)
(19)
Handset
Recepton Signal
AG
AG
R34
22K
(18)
(17)
(16)
C25
4.7
AG
(15)
(14)
(13)
(12)
Q10
R39
47K
AG
(11)
(10)
(9)
D5V
D5V
R154
C107
NC
Z0.1
DG
R155
100K
DG
4.0MHz
0
5.2V
5.4V
C108 12P
0
D5V
R121
IC9 X1
4MHZ 1M
R122
NC Vin
3 2
3.3K 0
DG C109 12P
GND RESET
4 1
5.4V
C106
D5V
Z0.01
0.8V
DG
R153
0
NC
0
(8) DG
5.4V
(7)
5.4V
(6)
5.2V
0
(5)
(4)
5.4V
SW42
HOLD
AG
5.1V
0
(3)
5.4V
0
(2)
(1)
+6V
R14
18
C9
6.3V100
R15
1.7V
AG 6.8K
R13
470K
R9 20K
R12 C8 C14
C7
Q4
2.2K 0.22 0.047 820P
C12 1.5V
2200P
R16
56
R10
AG 2.7K
C41
C26
0.1
R32
12K
R33
C36
NC
Z0.1
IC10
0
1 8
Vref
R35 56K 1.2V
2 7
1.9V 2.0V
R77 C33
3 6
DET
J5 CC
0
39K 0.015
4 5
1.9V
C32 0.1
Handset
R76 C35
68K Z1
Transmission
AG AG
Signal
R27 C23 R22
5.6K 0.033 3.3K
R19
NC
R28 R24
1.6V
2.2K 270K
C24 R26 C34
Q5
0.1
0.1 4.7K
C22
R74 R25
0.01
5.6K 470K
R23
R20
120
NC
AG
Q6
R40
47K
AG
R123 R124
0 0
R80
1 RE0
R73
2 TEST
R72
3 OSC1
R71
4 OSC2
R70
5 RESET
R63
6 X1
R62
7 X2
R61
IC1
8 GND
R60
9 D0
R43
10 D1
R42
11 D2
R41
12 D3
R40
13 D4
R31
14 D5
R32
15 D9
R33
16 D10
5.4V
0
C3
16V22
T1
1
6
R6
3 4
680
R5
AG
47
R17 C13
0 NC Q2
C4
2.2
C5
R7
27K
NC
Q3
C6
1000P
R8
33
AG
C91
0.1 R41 4.7K
0.1
A5V
C21 R21
R100
0.1 2.7K
100K
R81
Q20
R99 D3
15K
1
10K
C95
Z0.1
C81
0.047
1.6V
AG AG
IC5
C82
IC2 R104
NC
1
3
DOUT 2
AG 10K
R82
4.7K
C83
NC
AG
R83
0
13
12
DI_INT
DIN 8
DCLR
5.4V
+6V
+6V
D5V
DTMF
D5
D5V
Signal
J4
for Dial A5V
C206 C205
6.3V1000 6.3V100
J1
5.4V
DG
0
48
DG AG
L[7]
47
L[6]
46
L[5]
45
L[4]
44
5.4V
L[3]
43
L[2]
42 D5V
L[1]
41
R151
L[0]
40
NC
0
39
5.4V
38
5.4V
37
36 RA1
47K
35
5.4V
34
0
33
DG
D5V
R152
5.4V
NC
0
33
D1
Q1
3 1
4 2
R1
C2
16V10
100K
C11
R2
NC
C1
22K
NC
4 1
R4
PC1
68K
3 2
DG
R3
1.8K
R91
10K
1.8V C94 C93
0.001 0.047
A5V
R95
470K
R94 R92
6 4.7K 18K
R97 10K
1.8V
2 7
5
R98
3
IC6
IC6
15K
C92 R93
Z1 10K
R96
100K
AG
D5V
Q101
IC2
5
R103
6
4
10K
C102
150P
D5V T2
DG
C103
5
10 R101
Z2.2
220
4 9
D5V
R105 C101
100 50VZ0.01
R108
1K
1
7 R102
DG
220
2 6
IC2 Q102
R106
11
2.2K
R107
D4
IC2 9 4.7K
10
DG
6.1V 20V
J6 0
IC7 V1 V2
R203
3 1
O I
B NC
2
R201
2.2K
R204
Q201
NC
R202
NC
C204
C203
NC
Z0.1 25V47
Q202
NC
R205
NC D6
AG
CN1
10
C[3]
DB7
C[2] 9
DB6
8
C[1]
DB5
7
C[0]
DB4
6
DATA/RW
4
STB/RS
5
SCK/E
D5V D5V
2
Vdd
R128
10K C110
Z0.1
3
Vo
R127 R126 R125
1
Vss
2.2K 560 2.2K
5 4
DG DG
Q109
1 2 3
DG
KX-T7730X MAIN BOARD NO.2
KX-T7730X
JK1
H
H
1
T
T
2
R
R
3
L
L
4
C10
NC
D2
3 1
4 2
13.5V
C201
50V10
A5V
IC5
14
7
C85
Z0.01
AG AG
D5V
IC2
14
7
C105
Z0.01
DG DG
A5V
IC6
8
4
C96
Z0.01
AG AG