Read Panasonic KX-TCD556RUT / KX-TCD556RUV / KX-TCA151RUT / KX-TCA151RUV Service Manual online
37 SCHEMATIC DIAGRAM (BASE UNIT)
Q4
K0.022
C12
100K
R23
22k
R17
CN1
TEL_JACK
1
2
3
4
5
6
220R
R9
C3
100R
R8
TP19
2.2K
R28
K0.022
C13
Q5
C2
10K
R26
IC1
3
ADJ
2
VOUT
1
VIN
4
VOUT
TP5
5.6k
R25
TP4
22k
R16
C19
N.M.
TP7
R4
R5
TP24
560p
C17
TP12
+4.0V
N.M.
D2
Q1
N.M.
N.M.
RLY1
N.M.
1
2
3
4
7
8
9
10
10u/16V
10u/16V
330u/6.3V
100u/16V
C11
5K6
R22
560p
C22
5.6K
R27
100R
R29
0.1u
C20
Q3
Q2
R12
5.6K
R15
15K
+3.0V
+1.8V
+7.8V
C7
D1
J1
(21-25)
J2
(21-25)
J3
(21-25)
J4
(21-25)
N.M.
J5
J7
N.M.
J6
N.M.
N.M.
C4
C5
N.M.
C6
N.M.
C10
N.M.
R13
56K
R14
24K
C18
N.M.
C9
N.M.
C8
4p
R24
100R
C21
10p
R32 100R
C27
10p
IC6
NC
NC
1
Vss
2
CLE
3
ALE
4
WE
5
WP
6
7
8
9
10
11
12
13
N.C
14
N.C
15
N.C
16
N.C
17
N.C
18
I/O0
19
I/O1
20
I/O2
21
I/O3
22
Vss
23
Vcc
24
I/O4
25
I/O5
26
I/O6
27
I/O7
28
29
30
31
32
33
34
35
36
37
38
39
40
GND
41
R/B
42
RE
43
CE
44
Vcc
C67
1u
C68
1u
NC
C79
(32-26)
Q12
N.M.
NC
C81
NC
L2
R82
0
(21-25)
TP20
NC
C77
(32-16)
NC
C78
NC
R76
(21-25)
NC
R80
(32-16)
NC
R79
NC
R78
NC
R77
(21-25)
CN2
DC_JACK
2
-
1
+
TP15
D3
IC7
1
A15
2
A14
3
A13
4
A12
5
A11
6
A10
7
A9
8
A8
9
NC
10
NC
11
WE
12
NC
13
NC
14
NC
15
NC
16
NC
17
A17
18
A7
19
A6
20
A5
21
A4
22 A3
28
OE
29
DQ0
30
DQ8
31
DQ1
32
DQ9
33
DQ2
34
DQ10
35
DQ3
36
DQ11
37
VDD
38
DQ4
39
DQ12
40
DQ5
41
DQ13
42
DQ6
43
DQ14
44
DQ7
45
DQ15
46
VSS
47
NC
48
A16
23 A2
24 A1
26
CE
27
VSS
25
A0
R105
10k
IC8
NC
1
1A
2
1B
3
2Y
4
GND
5
2A
6
2B
7
1Y
8
VCC
C66
NC
R106
27k
R107
27k
C101
6800p
C102
6800p
C103
NC
TP11
Q13
NC
NC
R108
10k
R109
NC
L6
33u
L7
33u
SA1
R6
NC
NC
NC
NC
NC
R10
47K
C110
0.01u
R11
N.M.
TP21
TP22
TP14
TP9
C1
10p
C114
1p
C107
R67
5.6M
100K
R69
100K
R70
N.M.
J8
C119
2.2u
TP49
D6
C125
N.M.
R114
5.6k
C126
100p
C127
100p
C74
10n
C80
470n
R81
12K
D14
3.9V
D15
3.9V
C75
10n
R68
5.6M
DAB0
DAB1
DAB2
DAB3
DAB4
DAB5
DAB6
DAB7
P3[6]
CLE
ALE
AD15
AD14
AD13
AD12
AD11
AD10
AD9
AD8
AD17
AD7
AD6
AD5
AD4
AD3
AD2
AD1
DAB0
DAB8
DAB1
DAB9
DAB2
DAB10
DAB3
DAB11
DAB4
DAB12
DAB5
DAB13
DAB6
DAB7
RE
ACS0
WE
RE
WE
ACS1
R/B
DAB15
DAB14
AD0
AD16
OPTION4
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(14)
(15)
(16)
(17)
(18)
(18)
(19)
(20)
(21)
(22)
(23)
(24)
: No Components
Line Voltage
48V DC (When ON-Hook)
10V DC (When OFF-Hook)
48V DC (When ON-Hook)
10V DC (When OFF-Hook)
10V DC (When OFF-Hook)
0V DC (When ON-Hook)
0V DC (When ON-Hook)
RX_AF (When ON-Hook)
Caller ID, Bell Signal
Caller ID, Bell Signal
0V (When ON-Hook)
+0.7V (When OFF-Hook)
+0.7V (When OFF-Hook)
3.0V DC
1.8V DC
4.0V DC
7.8V
3.9V
2.9V
3.9V
0V
0V
3.1V
Bell Signal
Caller ID at ON-HOOK
94
KX-TCD556RUT / KX-TCD556R UV / KX-TCA151RUT / KX-TCA151RUV
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