Panasonic KX-TCD156RUB / KX-TCD156RUW / KX-TCA115RUB / KX-TCA115RUW Service Manual ▷ View online
MIC
R5
330
C4 K0.1
R1
2.2K
R7 330
C5
6.3V4.7
C6
D10P
C7
K0.1
R8 330
C8
D10P
C16
C1P
C17
J18P
S10
C24
K0.1
C26
K0.1
C28
K0.1
C29 K0.1
C30
K0.1
R12
NC
NC
R18
33
C57
J33P
A201
L3
4.7uH
D3
R20 0
R17
0
TP11
TP1
TP2
R23
2.2
C62
K1.0
R22
0
0
C63
D10P
C64
K1.0
X1
TP13
C54
D10P
TP17
TP16
C61
NC
C25
NC
D5
NC
TP15
CN5
1
SP+
2
SP-
D6
D7
TP19
C67
D10P
C68
D10P
C60
6.3V4.7
C59
1005
NC
IC3
RF_UNIT
1 GND
2 GND
3 GND
4 TXDA
5 RSSI
6 VCC_OC
7 GND
8 SYCL
2 GND
3 GND
4 TXDA
5 RSSI
6 VCC_OC
7 GND
8 SYCL
9
SYDA
10
SYEN
11
RXDSG
12
SYRI
13
GND
14
GND
15
GND
16
GND
17
GND
18
GND
19
RXDA
20
GND
21
GND
22
PSEL
23
PAON
24
GND
25
VCC_PA
26
GND
27
GND
28
GND
29
GND
30
GND
31
A_1
32
GND
C69
C3P
C70
C3P
L6
8.2nH
C65
C2P
R24
NC
R25
560
R26
560
L7
8.2nH
C66
NC
C56
C2P
C58
1005
B1.2p
L59
1005
NC
C71
D10P
R27
0
’POWER’
SP
-
+
KX-TCA115 SCHEMATIC DIAGRAM (HANDSET)
NC: No Components
(1)
(25)
(7)
(6)
(5)
(4)
(3)
(2)
(26)
(27)
(28)
(29)
(30)
(37)
(38)
(38)
(31)
(32)
(33)
(35)
(36)
(34)
(24)
(8)
~
2.5V
0.5V
0V
TX - DATA
1.8V DC IN TALK MODE
RX-AF
TX-AF
Frequency 10.368MHz
1V
73
KX-TCD156RUB / KX-TCD156R UW / KX-TCA115RUB / KX-TCA115RUW
Memo
74
KX-TCD156RUB / KX-TCD156R UW / KX-TCA115RUB / KX-TCA115RUW
33 CIRCUIT BOARD (BASE UNIT)
33.1. Component View
Bell Ringer
(BBIC: 44)
Bell Power
Supply (5.5V)
Q8 Collector
(2.65V)
Bell
(BBIC: 27)
Bell
(BBIC: 26)
IC2
(BBIC)
RF VOLTAGE
(4.0V)
Q9
(5.5V)
Q9
(4.0V)
RESET
(BBIC: 14)
X1
(BBIC: 18
10.368MHz)
IC3
(RF Module)
Q1
S1
L2
L1
PbF
X1
IC1
IC3
IC2
JMP6
JMP2
JMP4 JMP3
JMP1
RLY1
R43
R44
R90
C89
R68
C48
C47
C27
C68
C41
C42
C43
C98
C100
C101
C102
R38
R66
R78
R79
L59
L3
C53
C55
C70
C58
C96
C73
C83
C71
DA1
R42
R41
L85
L83
C82
C84
C57
C21
C29
C35
C34
C34
C33
C32
C32
C62
C7
C9
C5
C49
C74
C2
C1
C63
C4
C11
C14
C6
C13
C10
R3
R1
R6
R2
R4
C36
C30
R61
C28
R29
R30
C19
C12
C16
C17
C51
C22
C18
C23
C24
C20
R31
R67 C105
C106
C107
R58
R57
R35
R59
C97
D5
D10
D11
R71
R72
R81
R82
R53
R54
R56
R8
C60
R55
R19
R20
R25
R28
R13
D12
D13
R14
R11
R15
R74
R73
R7
R77
D7
D8
R70
R85
R5
R9
R10
R27
R23
C80
C79
R32
R24
R91
D6
R12
R22
R92
R21
R16
R18
R18
R26
R17
D1
C103
D2
D3
C88
R88
R87
C86
C67
C76
C72
C66
C56
C59
Q6
C15
C
B C E
Q3
Q7
Q5
Q2
Q11
Q10
Q4
1
C25
Q8
64
4
5
8
1
11
28
18
ANT
J1
A201
A202
J2
Q9
D4
C81
C87
C5
4
L5
8
C69
L4
C78
C93
C94
C37
R36
R33
R52
C50
C38
C26
C91
CN4
A
C92
D9
C95
C90
R89
KXTCD150H
PQUP11175W
SA1
C40
C3
C77
JMP5
JMP8
JMP7
B
E
KX-TCD156 CIRCUIT BOARD (BASE UNIT) Component View
1
64
48
49
33
32
16
17
17
KX
-T
CD1
56RUB
/
K
X
-T
C
D156R
UW
/
K
X
-T
C
A115R
UB
/
K
X
-T
CA1
15RUW
75
33.2. Flow Solder Side View
Q9 input
(5.5V)
Q9 output
(4V)
TP1
TP10
TP97
TP82
TP187
TP91
C99
TP188
TP101
TP89
TP2
1
2
4
6
TP5
TP90
TP50
TP45
TP3
TP39
TP40
J101 J103 J104 J102 J105
PbF
+2.65V
SDA
SCL
GND
VBACK
CHARGE
CHARGE
KX-TCD156 CIRCUIT BOARD (BASE UNIT) Flow Solder Side View
RF clock
(BBIC: 11 10.368MHz)
KX
-T
CD1
56RUB
/
K
X
-T
C
D156R
UW
/
K
X
-T
C
A115R
UB
/
K
X
-T
CA1
15RUW
76
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