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Model
KX-TCD410RUT KX-A141RUT KX-TCD412RUT KX-A142RUT
Pages
91
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Service Manual
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kx-tcd410rut-kx-a141rut-kx-tcd412rut-kx-a142rut.pdf
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PREV: Panasonic KX-TCD410RUM / KX-TCD410RUS / KX-TCD412RUM / KX-TCD412RUS / KX-A141RUM / KX-A141RUS / KX-A142RUM / KX-A142RUS (serv.man2) Service Manual / Supplement

Panasonic KX-TCD410RUT / KX-A141RUT / KX-TCD412RUT / KX-A142RUT Service Manual ▷ View online

35.6. Memo
81
KX-TCD410RUT / KX-A141RUT / KX-TCD412R UT / KX-A142RUT
36 SCHEMATIC DIAGRAM (BASE UNIT)
+5.5V
+4.0V
6.3V100
C41
D4
220
R42
100
R41
TP90
TP91
C40
10V100
TP89
Q9
3
ADJ
2
VOUT
1
VIN
4
VOUT
+2.65V
500V680P
C1
100
R29
J1
1
2
3
4
5
6
500V680P
C2
TP45
TP39
D10P
C19
D10P
C18
Q1
NC
NC
D1
NC
JMP5
Q3
JMP6
NC
JMP7
NC
D2
JMP2
NC
1.5M
R2
2.2K
R10
TP2
2.7K
R8
SA1
100
R30
JMP1
NC
JMP3
NC
C5
NC
C6
NC
TP40
1.5M
R1
RLY1
NC
NC
1
2
3
4
7
8
9
10
10K
R9
100K
R7
JMP4
NC
TP5
33
R43
NC
R45
TP84
33
R44
D10P
C50
R58
10K
+2.65V
+4.0V
LED1
R68
150
C60
NC
Q11
NC
NC
R70
R71
NC
R74
NC
R73
NC
C62
NC
R72
NC
L2
NC
C63
NC
R77
0
J2
1
2
DC_PLUG
IC4
1
A11
2
A9
3
A8
4
A13
5
A14
6
A17
7
WR
8
VCC
9
A18
10
A16
11
A15
12
A12
13
A7
14
A6
15
A5
16
A4
17
A3
18
A2
19
A1
20
A0
21
D0
22
D1
23
D2
24
GND
25
D3
26
D4
27
D5
28
D6
29
D7
30
CE
31
A10
32
0E
C23
K0.1
C26
K0.1
R83
2.2K
+2.65V
R80
2.2K
R84
10K
K0.1
C76
+2.65V
180K
R82
5.6M
R81
K0.01
C74
5.6M
R53
K0.01
C49
180K
R54
K0.022
C4
K0.022
C3
R6
180K
R4
180K
R3
220K
R5
220K
Q10
R36 0
S1
3
4
2
1
TP101
NC
JMP8
C79
K1000P
C78
K1000P
TP85
20V
D7
500V680P
C31
C64
K1000P
L4
0
J100P
C87
J100P
C59
J100P
C52
D1
0
4.7V(M)
D10P
C89
D10P
C88
TP3
R37 0
R39 0
R40 0
K3300P
C7
C77
250V0.47
R85
12K
Q2
IC1
32K_EEPROM
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
A00
A01
A02
A03
A04
A05
A06
A07
A08
A09
A10
A11
A12
A13
A14
A15
A16
A17
A18
A02
A08
A11
A14
OPTION4
(14)
(15)
(10)
(11)
(12)
(13)
(3)
(4)
(5)
(6)
(2)
(1)
(7)
(8)
(9)
: No Components
60v
DC
LINE VOL TAGE 60V DC
+60V DC ON-HOOK
+10V DC OFF-HOOK
OV ON-HOOK 
+0.7V DC OFF-HOOK
+4.0V DC
82
KX-TCD410RUT / KX-A141RUT / KX-TCD412R UT / KX-A142RUT
TX-DATA
Q8
C25
6.3V10
K0.47
C12
3.9K
R18
50V10
C15
NC
C9
NC
R15
D10P
C21
R17
NC
NC
R13
K0.1
C20
C8
NC
D3
22
R19
TP97
C17
NC
150
R25
Q4
NC
750
R28
K0.22
C14
K0.027
C11
56
R20
TP50
NC
R11
Q6
13K
R16
C10
NC
100K
R21
R12
0
56
R23
K1.0
C13
NC
R14
56
R32
K0.22
C22
R38
33
+2.65V
J101
1
J102
1
J103
1
NC
R56
NC
R55
NC
C51
VBACK
J104
1
J105
1
+2.65V
C53
NC
Q5
NC
TP187
TP188
TP82
IC2
1
VDD
2
VSS
3
4
DRON
5D
3
6
RXDSG
7D
2
8
RXDA
9D
1
10
SYEN
11
D7
12
SYDA
13
SYCL
14
A10
15
TXDA
16
A1
17
PAON(TXSWON)
18
A0
19
A3
20
SYRI
21
VDD
22
VSS
23
RESETQ
24
VDDPM
25
VSS0
26
NC
27
LOAD
28
XTAL
29
NC
30
VDDLR
31
LRB
32
NC
33
VDDA
34
VSSA
35
NC
36
AON
37
AOP
38
NC
39
BREF
40
DLP
41
NC
42
DLN
43
AIN
44
NC
45
ADREF
46
ADRSSI
47
NC
48
AD2/(MPCINP)
49
AD3
50
NC
51
PX.0
52
A16
53
PX.1
54
A9
55
PX.2
56
A12
57
PX.3
58
A17
59
VDD
60
VSS
61
A5
62
A18
63
I2DAT
64
I2CLK
65
A15
66
A7
67
MODE
68
WRRAQ
69
R2/P1.7
70
A4
71
R1/P1.6
72
VBACK/P1.5
73
VSS(T_DSPCLK)
74
A6
75
A13
76 DSPIN/P1.0
77 A8
78 DSPOUT/P1.1
79 A14
80 DSPCLK/P1.2
81 A11
82 DSPFRM/P1.3
83 OERAQ
84 VSS
85 VDD
86 A2
87 P0.0
88 P0.1
89 CSRAQ
90 P0.2
91 P0.3
92 D4
93 P0.4/TXD
94 P0.5/RXD
95 P0.6
96 D6
97 P0.7
98 D5
99 ANT1
100 ANT2
C33
C1P
C32
J27P
R35
NC
X1
10.368MHz
C35
K0.033
C27
K0.1
C24
K0.1
C34
K0.1
C29
K0.068
C28
K0.068
+2.65V
R33
1K
D5
10K
R57
+2.65V
33K
R22
R67
39
C56
D10P
R78
180
C73
D10P
AN
T
DA1
C70
NC
C55
D10P
L3
33n
C71
NC
C58 1.8n
C57
1.8n
A202
1
R79
180
C54
2.7n
R66
39
A201
1
C72
C2P
C69
C2P
L1
4.7u
C67
K4.
7
IC3
5
RSSI
6
VCC_OC
7
GND
8
SYCL
9
SYDA
10 SYEN
11 GND
12
RXDSG
13
SYRI
14
GND
15
GND
16
GND
17
GND
18
GND
19
GND
20
RXDA
21
GND
22
GND
23
GND
24
PSEL
25
PAON
26
GND
27
VCC_PA
28
GND
29
GND
30
GND
31
GND
32
GND
33
RF1
34
GND
GND
1
GND
2
GND
3
TXDA
4
C65
C2P
C48
J33P
C43
D10P
VBACK
C30
K1800P
C36
K0.
1
C37
K0.1
C38
K0.1
100
R31
D9
4.7V(M)
D8
4.7V(M)
C66
C6P
C61
D10P
C86
NC
C85
C1P
C80
C6P
C84
C1P
C83
C1P
C81
C2P
C82
C3P
1M
R59
C39
J100P
C42
C46
K0.1
C47
J100P
C45
K0.1
C44
K0.1
C90
D10P
L8
1.8n
C91 C1P
C92
NC
C68
K4.7
TP1
R46
NC
TP189
10
R24
2.2K
R27
10K
R26
Q7
NC
C16
A00
A01
A03
A04
A05
A06
A07
A09
A10
A12
A13
A15
A16
A17
A18
’SDA’
’SCL’
D0
K0.1
(14)
(15)
(10)
(11)
(12)
(13)
(3)
(4)
(5)
(6)
(2)
(7)
(8)
(9)
(1)
KX-TCD410RUT&412RUT  SCHEMATIC DIAGRAM (BASE UNIT)
ON-HOOK: 0V
OFF-HOOK: about DC 9.8V
ON-HOOK: 0V
OFF-HOOK: about DC 3.9V
: No Components
TX-AF
RX-AF
RX-DATA
10.368MHZ burst 
peak
+3.1V
1V
FREQ 10.368MHZ
+2.65V DC
83
KX-TCD410RUT / KX-A141RUT / KX-TCD412R UT / KX-A142RUT
37 SCHEMATIC DIAGRAM (HANDSET)
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
Q2
R6
3.3K
IC2
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
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
DR
ON
11
RXDSG
12
RXD
A
13
SYEN
14
SYD
A
15
SYCL
16
TXD
A
17
PY
.0
18
PY
.1
19
PY
.2
20
PY
.3
21
PY
.4
22
P
A
ON
23
SYRI
24
VDD
25
VSS
26
ONSW
27
CDT
28
DCDCDR
V
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
I2D
A
T
67
ISCLK
68
MODE
69
R2
70
R1
71
VBA
CK/P0.7
72
PL.5
73
PL.6
74
PL.7
75
PL.8
76
PL.9
77
VDDLI
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
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
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
PX.0
PX.1
PX.2
PY
.4
PY
.3
PY
.2
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.17
PL.18
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
PX.3
PX.4
PY.4
PY.4
PY.3
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’
(1)
(25)
(7)
(6)
(5)
(4)
(3)
(2)
(26)
(27)
(28)
(29)
(30)
 (38)
(31)
(24)
(8)
~
(32)
(33)
(37)
(34)
~
84
KX-TCD410RUT / KX-A141RUT / KX-TCD412R UT / KX-A142RUT
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