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Panasonic KX-T7730X - Page 35

Panasonic KX-T7730X
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R31
1K
R49 30K
R50 68K
R48
2.2M
R46
5.6K
R47
5.6K
R51
2.7M
C44
0.047
C45
0.047
C61
0.1
C57
6.3V1000
C63
6.3V100
R56
3.3
+6V
R54
18K
R55
150K
R57 2.2K
C46
0.047
R42
18K
C42
0.1
R58
100K
C65
0.01
C59
0.1
C64 0.1
C58
Z4.7
C55
Z10
C52 Z4.7
C51
Z1
C50
Z1
C27
0.1
IC3
1
RR
2
RTX
3
TXI
4
TXD
5
TLI
6
TLO
7
TRL
8
RLD
9
MCI
10
MCO
11
CP1
12
N.C
13
CP2
14
XDI
15
SKG
16
SKO
17
V+
18
AGC
19
CS
20
SKI
21
VCC
22
VB
23
V-
24
XDC
25
VLC
26
ACF
27
N.C
28
RXO
29
RXI
30
PRX
R61
0
C62
0.047
R29
470K
C60 0.022
R70 27K
R67 220K
R68 120K
AG
Q15
1
4
3
2
5
Q16
1
4
3
2
5
R69 56K
C48 0.1
C47
0.033
R45 3.3K
C53 6.3V47
R52
100K
C56
6.3V100
C54
6.3V100
R36
150
A5V
C30
6.3V220
R38
10K
Q11
1
4
32
5
R134
39
D22
CO5
D26
CO9
D28
CO11
Q106
1
4
3
2
5
R131
270
D27
CO10
R132
39
R133
270
D23
CO6
D24
CO7
R135
270
R136
39
D20
CO3
D18
CO1
D19
CO2
D5V
SW26
CO1
SW46
6
SW40
5
SW22
2
SW34
4
SW23
CO4
SW12
CO11
SW14
CO9
SW33
*
SW27
9
SW25
CO2
SW15
7
SW28
3
SW21
8
SW18
CO7
SW11
CO12
SW17
CO8
SW45
#
SW24
CO3
SW20
CO5
SW19
CO6
SW39
0
SW16
1
D29
CO12
3
4
1
2
D25
CO8
D21
CO4
R138
220
R137
270
Q108
1
4
3
2
5
RA2
4.7K
NC
C72
IC4
NC
1
CD
2
FC2
3
FC1
4
Vin
5
VO1
6
VCC
7
GND
8
VO2
NC
R62
NC
R65
NC
C71
NC
R64
R43
470K
NC
C73
IC5
11
10
12
IC5
2
1
13
NC
C74
NC
C75
NC
R66
R60
1.5K
R59
12K
R30
100K
C28
3300P
R37
27K
R53
47K
NC
R63
C31 Z10
CN2
1
+
2
-
CN3
1
+
2
-
R72
47K
R71
47K
D12
ICM
R139
39
NC
C43
DG
AG
AG
AGAG
AG
AG
AG
AG
AG AG AG
AG
NC
J2
NC
J3
IC5
3
4
5
JK3
1
2
3
4
5
AG
AG
D16
MUTE
D17
STORE
D14
CONF
D15
FWD/DND
D13
SP-PHONE
SW31
MUTE
SW30
FWD/DND
SW35
M.W
SW32
STORE
SW29
CONF
SW37
FLASH
SW36
PAUSE
SW47 SW48
SW44
ICM
SW41
REDIAL
SW38
TRANSFER
SW43
SP-PHONE
SW49 SW50
JK2
HANDSET JACK
3SP
1MIC
2
4
A1
A2
A3
A4
A5
A6
A7
A8
A9
B1
B2
B3
B4
B5
B6
B7
B8
E4
E3
E2
E1
E5 E6
G2
G1
AG1
M3
AG2
SP- SP+
SW51
PROGRAM
SW1
3
4
2
1
SW13
CO10
CN6
1
2
R141
NC
CN4
1
2
CN5
1
2
R140
82
D11
M.W
AG
A5V
Q8
Q13
Q14
Q7
Q18
Q104
1
6
2
Q104
4
3
5
Q103
1
6
2
Q103
4
3
5
C84
0.01
R84
680K
R44
4.7K
C49
0.033
AG
R89
100K
Q12
1
4
3
2
5
A5V
R73
100K
SW52
HOOK
Q105
1
4
3
2
5
Q107
1
4
3
2
5
CN8
8
7
5
4
9
6
CN7
2
3
5
6
1
4
CN8
2
1
3
CN7
8
9
7
AG
AG
K2 K1
M1SP1 M2SP2
N3 N2N4 N1
AG
NC
C76
R90
470
D31 D32 D33 D34
R206
1K
NC
R207
C29
2200P
R208
22K
R78
47K
R79
39K
AG
R86
270K
NC
R85
R88
3.9K
R87
10K
C66
0.01
C67
3300P
R80
47K
SP_RX_MUTE
SP_TX_MUTE
HS_POWER
SP_POWER
SP_VOL1
SP_VOL2
SP_VOL3
SP_VOL4
HS_VOL2
HS_VOL1
C[1]
C[0]
C[3]
C[2]
T_CONT3
T_CONT4
L[0]
L[1]
L[2]
L[3]
L[4]
L[5]
L[6]
L[7]
SP_POWER
SP_TX_MUTE
SP_RX_MUTE
T_CONT2
HS_POWER
K[0]
K[1]
K[2]
K[3]
K[4]
K[5]
C[4]
C[5]
HEAD_SET
K[7]
K[6]
HS_MUTE
RING_OFF
RR
R
G
R
G
R
G
R
G
G
G
RRR
GGG
R
G
R
G
G
R
KX-T7730X MAIN BOARD NO.1
2.4V
2.8V
1.5V
2.7V
2.8V
5.4V
5.3V
2.0V
0
0
0
0
2.8V
2.7V
2.5V
2.9V
2.8V
2.7V
2.8V
2.8V
2.8V
2.2V
1.5V
2.1V
2.1V
0
0
2.8V
6.1V
2.9V
2.8V
4.6V
SP-Phone
Recepton Signal
SP-Phone
Recepton Signal
Ringer
Signal
5.4V :
0V :
The handset is in use
The speakerphone is in use
On using the speakerphone
(1)
(2)
(3)
(4)
(6)
(8)
(9)
(10)
(11)
(12)
(14)
(16)
(17)
(18)
(19)
(20)
(13)
(15)
(5)
(7)

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