Panasonic KX-TCD156RUB / KX-TCD156RUW / KX-TCA115RUB / KX-TCA115RUW Service Manual ▷ View online
30 FOR SCHEMATIC DIAGRAM
30.1. Base Unit (SCHEMATIC DIAGRAM (BASE UNIT))
Notes:
1. DC voltage measurements are taken with voltmeter from the negative voltage line.
2. This schematic diagram may be modified at any time with the development of new technology.
30.2. Handset (SCHEMATIC DIAGRAM (HANDSET))
Notes:
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.
2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
69
KX-TCD156RUB / KX-TCD156R UW / KX-TCA115RUB / KX-TCA115RUW
31 SCHEMATIC DIAGRAM (BASE UNIT)
IC1
32K_EEPROM
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
+5.5V
+4.0V
6.3V100
C41
D4
220
R42
100
R41
TP90
TP91
C40
16V100
TP89
Q9
LM1117
3
ADJ
2
VOUT
1
VIN
4
VOUT
+2.65V
680P/500V
C1
100
R29
R5
220K
J1
1
2
3
4
5
6
TP45
TP39
D10P
C19
D10P
C18
Q3
D2
1.5M
R2
2.2K
R10
R6
180K
TP2
2.7K
R8
SA1
100
R30
TP40
R3
220K
K0.022
C4
R4
180K
1.5M
R1
RLY1
NC
1
2
3
4
7
8
9
10
10
K
R9
K0.022
C3
100K
R7
TP5
33
R43
33
R44
J2
1
GND
2
DC_PLUG
5.6M
R53
180K
R54
K0.01
C49
180K
R82
K0.01
C74
5.6M
R81
TP3
TP101
J105
1
J101
1
J104
1
J103
1
VBACK
+2.65V
J102
1
680P/500V
C2
1
CHARGE-
2
CHARGE+
Q2
C89
K1000P
R68
220
R89
1K
D9
MA111
+5.5V
C90
J100P
Q10
C60
NC
C62
NC
C5
NC
C63
NC
C92
NC
C91
NC
C6
NC
D1
NC
JMP3
NC
JMP2
NC
JMP7
NC
NC
JMP5
JMP6
NC
JMP4
NC
NC
JMP8
JMP1
NC
L2
NC
R73
NC
R71
NC
R74
NC
R77
NC
NC
R70
R72
NC
Q11
NC
Q1
NC
C95
N.M
D10P
C96
C99
NC
C100
D10P
470
R59
CN4
DB111G
1
2
R90
220
NC
C7
C3P
C42
C106
C3P
C107
NC
D7
0
D8
0
R85
12K
C77
250V0.47
OPTION4
’SCL’
’SDA’
, NC: No Components
(13)
(12)
(11)
(10)
(6)
(5)
(4)
(3)
(2)
(1)
(9)
(8)
(7)
0V ON-HOOK
+0.7V DC OFF-HOOK
+0.7V DC OFF-HOOK
+60V DC ON-HOOK
+10V DC OFF-HOOK
+10V DC OFF-HOOK
60v
DC
DC
LINE VOL TAGE 60V DC
+4.0V DC
70
KX-TCD156RUB / KX-TCD156R UW / KX-TCA115RUB / KX-TCA115RUW
IC2
BBIC
(7725:R33 N.M./R52 0ohm)
(7795:R33 1K/R52 N.M.)
(7795:R33 1K/R52 N.M.)
1
VDD
2
VSS
3
DRON
4
RXDSG
5
RXDA
6
SYEN
7
SYDA
8
SYCL
9
TXDA
10
PAON
11
SYRI
12
VDD
13
VSS
14
RESETQ
15
VDDPM
16
VSSO
17
LOAD
18
XTAL
19
VDDLR
20
LRB
21
VDDA
22
VSSA
23
AON
24
AOP
25
BREF
26
DLP
27
DLN
28
AIN
29
ADREF
30
ADRSSI
31
AD2(MPCINP)
32
AD3
33 PX.0
34 PX.1
35 PX.2
36 PX.3
37 VDD
38 VSS
39 SUPEEP
40 I2DAT
41 I2CLK
42 MODE
43 R2
44 R1
45
34 PX.1
35 PX.2
36 PX.3
37 VDD
38 VSS
39 SUPEEP
40 I2DAT
41 I2CLK
42 MODE
43 R2
44 R1
45
45:VBACK/P1.5
46
46:VSS(DSPCLK)
47
47:P1.4(TONE)
48 VDD
49
DSPIN/P1.
0
50
DSPOUT/P1.1
51
DSPCLK/P1.2
52
DSPFRM/P1.3
53
VSS
54
VDD
55
P0.0
56
P0.1
57
P0.2
58
P0.3
59
P0.4
60
P0.5
61
P0.6
62
P0.7
63
ANT1
64
ANT2
Q8
C32
J27P
C33
C1P
C25
6.3V10
C24
K0.1
C23
K0.1
C37
K0.1
C36
K0.1
C34
K0.1
C30
K1800P
C29
K0.068
C28
K0.068
C26
K0.1
C38
K0.1
C35
K0.033
K0.47
C12
3.9K
R18
50V10
C15
D10P
C21
100
R31
K0.1
C20
D3
22
R19
TP97
470
R25
820
R28
33K
R22
K0.22
C14
K0.022
C11
56
R20
TP50
Q6
13K
R16
100K
R21
R12
NC
56
R23
K1.0
C13
1608size
K0.1
C16
56
R32
K0.22
C22
R38
33
+2.65V
VBACK
+2.65V
R57
10K
L1
4.7uH
C48
J33P
R58
10K
+2.65V
R67
150
A201
1
DA1
A202
1
TP187
TP188
X1
10.368MHz
TP82
TP1
R79
18
C66
C2P
C67
K4.7
D5
NC
C80
S1
3
4
2
1
C76
C6P
C27
K0.1
D10P
C50
C79
NC
C84
NC
C68
NC
NC
C9
C51
NC
C81
NC
C10
NC
C17
NC
NC
D6
NC
R13
NC
R17
R35
NC
NC
R15
NC
R14
NC
R11
R36
NC
R55
NC
R56
NC
Q4
NC
C93
NC
L4
2.7nH
Q5
NC
C94
C0.5P
C53
D10P
R33
NC
R52
0
C97
D10P
C98
C0.5P
C101
D10P
C103
NC
R91
NC
R92
NC
D12
NC
D13
NC
1
2
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
GDD
28
GND
29
GND
30
GND
31
A_1
32
GND
R88
NC
C72
C2P
R87
NC
L83
NC
ANT
C73
D10P
C86
NC
TP10
C70
NC
C58
D10P
C55
NC
C71
NC
C59
D10P
L58
C2P
C54
C6P
R78
150
R66
18
C56
D10P
C102
NC
C78
C2P
C69
D10P
C47
NC
C88
NC
C105
C3P
C82
NC
L59
0
C87
NC
Q7
10
R24
10K
R26
680
R27
C43
NC
C57
0
L85
NC
C83
C1.5P
L3
4.7nH
R61
47
D10
NC
D11
NC
ECN
KX-TCD156 SCHEMATIC DIAGRAM (BASE UNIT)
, NC: No Components
(13)
(12)
(11)
(10)
(6)
(5)
(4)
(3)
(2)
(1)
(9)
(8)
(7)
0V ON-HOOK
+9.8V DC OFF-HOOK
+9.8V DC OFF-HOOK
0V ON-HOOK
+3.9V DC OFF-HOOK
+3.9V DC OFF-HOOK
RX-AF
TX-AF
+2.65V DC
1V
FREQ 10.368MHZ
TX-DATA
RX-DATA
10.368MHZ burst
peak
+3.1V
+3.1V
71
KX-TCD156RUB / KX-TCD156R UW / KX-TCA115RUB / KX-TCA115RUW
32 SCHEMATIC DIAGRAM (HANDSET)
Q2
R6
3.3K
IC2
EEPROM
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
L2
47uH
Q1
G
S
D
R2
0.3
D1
C15
10V220
IC1
BBIC
1
PL.29
2
PL.30
3
VDD
4
VSS
5
PL.31
6
PL.32
7
PL.33
8
PL.34
9
PL.35
10
DRON
11
RXDSG
12
RXDA
13
SYEN
14
SYDA
15
SYCL
16
TXDA
17
PY.0
18
PY.1
19
PY.2
20
PY.3
21
PY.4
22
PAON
23
SYRI
24
VDD
25
VSS
26
ONSW
27
CDT
28
DCDCDRV
29
DCDCCMR
30
RESETQ
31
VSSO
32
LOAD
33
XTAL
34
VDDPM
35
VDDLO
36
VDDBAT
37
VDDLR
38
CHARGE_START(P0.2)
39
VDDA
40
VSSA
41
HON
42
HOP
43
BREF
44
MICS
45
MICP
46
MICN
47
ADREF
48
ADRSSI
49
P0.4(ADBAT)
50
P0.5(AD4N)
51
51:P0.6(AD4P)
52
P0.3
53
PX.0
54
PX.1
55
PX.2
56
PL.0
57
PL.1
58
PL.2
59
PX.3
60
PX.4
61
PL.3
62
PL.4
63
VDD
64
VSS
65
SUPEEP
66
I2DAT
67
ISCLK
68
MODE
69
R2
70
R1
71
VBACK/P0.7
72
PL.5
73
PL.6
74
PL.7
75
PL.8
76
PL.9
77
VDDL
I
78
PL.10
79
PL.11
80
PL.12
81 PL.13
82 PL.14
83 PL.15
84 PL.16
85 VSS
86 VDD
87 PL.17
88 P0.0
89 P0.1
90 PL.18
91 PL.19
92 PL.20
93 PL.21
94 PL.22
95 PL.23
96 PL.24
97 PL.25
98 PL.26
99 PL.27
82 PL.14
83 PL.15
84 PL.16
85 VSS
86 VDD
87 PL.17
88 P0.0
89 P0.1
90 PL.18
91 PL.19
92 PL.20
93 PL.21
94 PL.22
95 PL.23
96 PL.24
97 PL.25
98 PL.26
99 PL.27
100
PL.28
C2
K4.
7
R4
10K
C3
K0.1
S11
S7
S20
S5
S3
S18
S25
S23
S15
S16
S4
S22
S21
S8
S9
C18
K0.1
C20
K0.1
C21
K0.1
C22
K0.1
C23 K0.1
C27
K0.1
R11
0
R21
0.1
F1
S24
S19
S14
S2
S1
CN2
1
C5
2
C4
3
C3
4
C2
5
C1
6
C0
7
S29
8
S28
9
S27
10
S26
11
S25
12
S24
13
S23
14
S22
15
S21
16
S20
17
S19
18
S18
19
S17
20
S16
21
S15
22
S14
23
S13
24
S12
25
S11
26
S10
27
S9
28
S8
29
S7
30
S6
31
S5
32
S4
33
S3
34
S2
35
S1
36
S0
TP10
TP8
TP12
TP7
S13
S6
R16
NC
R19
15K
15K
D2
NC
C33
K2.2
TP3
TP4
TP5
TP6
S17
TP14
R3
56
C14
10V220
L4
10uH
L5
10uH
D4
39V(M)
CN3
1
BATTERY+
2
BATTERY-
CN1
1
CHARGE+
2
CHARGE-
TP18
Q3
TP20
TP21
TP22
TP23
PX.0
PX.1
PY.4
PY.3
PY.1
PY.0
PL.0
PL.1
PL.2
PL.3
PL.4
PL.5
PL.6
PL.7
PL.8
PL.9
PL.10
PL.11
PL.12
PL.13
PL.14
PL.15
PL.16
PL.14
PL.15
PL.16
PL.17
PL.18
PL.19
PL.20
PL.21
PL.22
PL.23
PL.24
PL.25
PL.26
PL.27
PL.28
PL.19
PL.20
PL.21
PL.22
PL.23
PL.24
PL.25
PL.26
PL.27
PL.28
PL.29
PL.30
PL.31
PL.32
PL.33
PL.34
PL.35
PL.0
PL.1
PL.2
PL.3
PL.4
PL.5
PL.6
PL.7
PL.10
PL.12
PL.14
PL.15
PL.17
PL.19
PL.21
PL.25
PL.28
PL.30
PL.32
PL.34
PX.3
PX.4
PL.8
PL.9
PL.11
PL.13
PL.16
PL.18
PL.20
PL.22
PL.23
PL.24
PL.26
PL.27
PL.29
PL.31
PL.33
PL.35
PX.1
PX.0
PY.0
PX.2
PY.1
PY.1
PX.3
PX.4
PY.4
PY.4
PY.3
PY.2
PX.2
PX.2
PY.2
’9’
’2’
’4’
’1’
’TEL BOOK’
’7’
’REDIAL’
’6’
’0’
’R’
’5’
’ ’
’8’
’TALK’
’#’
’3’
’LEFT’
’RIGHT’
’Cancel’
’INT’
’DOWN’
’UP’
’*’
’BATT’
’SDA’
’SCL’
’GND’
’VBACK’
NC: No Components
(1)
(25)
(7)
(6)
(5)
(4)
(3)
(2)
(26)
(27)
(28)
(29)
(30)
(37)
(38)
(38)
(31)
(24)
(8)
~
(32)
(33)
(35)
(36)
(34)
Frequency 324KHz
4.3V
0V
2.4V
4.1V DC
2.65V
0V
2.65V
0V
2.65V
0V
2.65V 0V
2.65V
0V
72
KX-TCD156RUB / KX-TCD156R UW / KX-TCA115RUB / KX-TCA115RUW
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