Read Panasonic KX-T7735RU / KX-T7735RUPP (serv.man3) Service Manual Supplement online
KX-T7735RU : MAIN BOARD NO.2
C83
C81
C21
R22
C22
C23
R24
R26
R28
R27
T1
1
3
3
4
5
C3
C2
R4
R1
R2
JK1
1
H
2
T
3
R
4
L
C91
R91
C94
C93
R95
IC6
5
6
7
R94 R92
A5V
R93
IC6
3
2
1
R97
R98
R96
D3
R99
C95
R100
A5V
C24
IC1
64
RD1
63
RD0
62
VTref
61
TONR
60
TONC
59
VCC
58
SEL
57
RA1
56
RA0
55
R93
54
R92
53
R91
52
R90
51
R83
50
R82
49
R81
48
R80
47
R73
46
R72
45
R71
44
R70
43
R63
42
R62
41
R61
40
R60
39
R43
38
R42
37
R41
36
R40
35
R31
34
R32
33
R33
17
D11
18
D12
19
D13
20
R00
21
R01
22
R02
23
R03
24
R10
25
R11
26
R12
27
R13
28
R20
29
R21
30
R22
31
R23
32
R30
1 RE0
2 TEST
3 OSC1
4 OSC2
5 RESET
6 X1
7 X2
8 GND
9 D0
2 TEST
3 OSC1
4 OSC2
5 RESET
6 X1
7 X2
8 GND
9 D0
10 D1
11 D2
12 D3
13 D4
14 D5
15 D9
16 D10
11 D2
12 D3
13 D4
14 D5
15 D9
16 D10
T2
5
4
4
9
10
1
2
2
6
7
R101
R102
D2
1
3
4
2
D1
1
3
4
2
2
IC5
8
9
6
R21
R41
R81
R25
R8
R9
R15
R16
R14
+6V
R13
C8
R12
R10
R34
C9
C92
D5V
R121
IC2
9
10
8
C102
IC2
5
4
6
R104
R108
R107
IC2
13
12
11
R105
IC2
1
2
3
R103
D5V
R106
D5V
C106
DG
DG
C108
C109
X1
C107
DG
R23
R82
R83
C110
R122
C103
C101
D5V
DG
DG
DG
D5V
IC2
7
14
C105
A5V
IC6
4
8
C96
D4
PC1
1
2
3
4
R3
R5
R7
D5V
DG
D5V
DG
R126
Q109
1
4
3
2
5
R127
DG
R125
R128
IC9
RESET 1
Vin
2
GND
4
NC
3
R6
C4
C41
A5V
C85
IC5
7
14
C25
R39
R40
DG
DG
DG
AG
AG
AG AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
DG
H
T
R
L
T
R
L
C34
AG
R123
R124
D5V
Vref
CC
DET
IC10
1
2
3
4
5
6
7
8
C26
R32
C32
R35
C33
R77
R76
C35
C6
C5
Q101
Q3
Q5
Q4
Q102
Q2
Q1
Q10
Q6
Q20
AG
DG
AG
R74
D5V
R152
D5V
R151
D5V
R153
D5V
DG
R17
C13
0.1
0.1
C36
R19
C12
C7
C82
C14
SW52
HOOK
SW42
HOLD
AG
AG
J1
AG
A5V
D5V
D5
+6V
+6V
DG
C204
C205
DG
C203
R201
C206
AG
V1
D6
J4
IC7
1
I
3 O
2
B
D5V
C11
C10
NC
J5
B10
CN1
4
V1
5
V2
6
V3
11
DB7(SI)
12
CSB
10
DB6(SIC)
1
VSS
9
Vdd
14
VSS
3
V0
7
V4
8
VSS
13
RS
2
ReSetB
C112
C113 C114
DG
C116
C117
R156
DG
Q19
DG
C115
D10
R157
R155
R154
R33
R213
R214 R215
R20
C1
T_CONT1
DOUT
DCLR
DIN
DI_INT
DOUT
DI_INT
DIN
DCLR
HS_SP_VOL1
HS_SP_VOL2
SP_VOL4
SP_VOL3
T_CONT1
T_CONT2
T_CONT3
T_CONT4
C[5]
L[0]
L[1]
L[2]
L[3]
L[4]
L[5]
K[5]
K[6]
K[0]
K[4]
K[1]
K[2]
K[3]
RING_OFF
L[7]
HEAD_SET
L[6]
HS_MUTE
C[1]
C[2]
C[3]
K[9]
K[8]
K[7]
C[0]
C[4]
NC
0.1
0.047
6.8K
0.022
0.022
270K
3.9K
3.9K
5.6K
16V22
50V0.33
27K
100K
22K
0.1
10K
1000p
0.047
470K
4.7K 18K
10K
10K
15K
100K
10K
Z0.1
100K
0.1
220
220
6.8K
8.2K
33K
470K
33
18K
6.8K
56
18
470K
0.22
2.2K
2.7K
22K
6.3V220
1
1M
150P
10K
1K
4.7K
100
10K
2.2K
Z0.01
12P
12P
4MHZ
Z0.1
47
1.5K
0
Z0.1
3.3K
2.2
50VZ0.01
Z0.01
Z0.01
1.8K
47
82K
33K
56K
470K
2.7K
0
10
0.1
Z0.01
10
47K
47K
0.1
220
0
0.1
6.8K
0.1
56K
0.015
39K
68K
1
1000P
NC
5.6K
NC
NC
NC
470
Z0.1
NC
2200P
1200P
NC
0
Z0.1
6.3V100
25V47
2.2K
6.3V1000
NC
NC
2.2
2.2
2.2
2.2
Z0.01
15K
2.2
0
NC
100K
NC
47K
47K
47K
0.015
NC
C214
1000pF
1.7V
1.5V
1.6V
0
0
0
0
0
0
0
5.4V
5.4V
5.4V
5.2V
5.4V
5.2V
5.4V
0.8V
5.4V
5.4V
5.4V
5.4V
5.4V
0
0
0
0
0
0
5.4V
0
0
0
0
0
0
5.4V
5.4V
5.4V
5.4V
5.4V
5.4V
5.4V
13.5V
1.8V
0
0
1.2V
2.0V
1.6V
1.9V
1.9V
5.4V
0
0
5.2V
0
4.0MHz
5.4V
5.4V
0
0
0
5.1V
0
5.4V
5.4V
6.1V
20V
Handset
Reception Signal
Reception Signal
Handset
Transmission
Signal
Transmission
Signal
DTMF
Signal
for Dial
Signal
for Dial
1.8V
(21)
(20)
(19)
(18)
(16)
(14)
(13)
(12)
(11)
(9)
(10)
(7)
(5)
(4)
(3)
(2)
(1)
(8)
(6)
(17)
(15)
D7
4
KX-T7735RU
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