Panasonic KX-TCD420GS Service Manual page 114

LINE VOLTAGE 60V DC
TP2
1
JMP1
2
A
NC
3
B
4
5
6
JMP2
NC
JMP3
NC
JMP4
NC
TP9
J1
TP106
DCplug 1
2
D4
C71
J100P
R58
NC
R59
33
R60
33
+2.8V +2.8V
IC6
+2.8V
1
NC
RDY/BUSY
2
RESET NC
3
WP NC
4
NC NC
5
NC NC
C44
6
VCC NC
K0.1
7
GND NC
8
NC NC
9
NC NC
10
NC NC
V_CS
11
CS NC
V_SCK
12
SCK NC
V_SI
13
SI NC
V_SO
14
SO NC
B0
B1 B2 B4 B8
: No Components
60v
SA1
DC
JMP6
NC
OPTION4
RLY1
NC
9
D5
8
7
NC
2
3
K0.1
4 C1
1
10
D1
NC
Q1
NC
R2
10K
TP10
IC2
1
VIN
3
ADJ
Bell
TP13
IC7
R67
+2.8V AD11
28 1 32
A11 OE
2.2K
AD09
27 2 31
A9 A10
AD08
26 3 30
A8 CE
AD13 DAB7
29
25 4
A13 D7
AD14 DAB6
5 28
24
A14 D6
AD17 DAB5
23 6 27
A17 D5
R65
DAB4
22 7 26
WE D4
10K
DAB3
21 8 25
VCC D3
20 9 24
A18 GND
DAB2
C45 AD16
19 10 23
A16 D2
Z1.0u
AD15 DAB1
18 11 22
A15 D1
AD12 DAB0
21
17 12
A12 D0
AD07
13 20
16
A7 A0
AD06
15 14 19
A6 A1
AD05
15 18
A5 A2
AD04
16 17
A4 A3
TP3
L1
N.M
C5
NC
JMP9
TP4
0
R3
NC
C24 500V1000P
C25 500V1000P
+2.8V
R5
NC
+4.0V DC
+4.0V
TP11 IC3
+2.8V
VIN VOUT
2
2 1
VOUT
4
VOUT 3 VSS
AD10
AD00
AD01
AD02
AD03
+60V:DC ON-HOOK
+10V:DC OFF-HOOK
ON-HOOK: 0V
OFF-HOOK: about DC 9.8V
Q2
C6
680p/500V D6
R12
100K
R13
5.6k
R7
C7 Q4
NC
C10
680p/500V
NC
R14
NC
Q3
+2.8V
R43
47K
5
R39 IC5
C28 R47
1
680K
R44 100
4 K0.1
82K
2
Q11
680K
R40 3
R45 100
R46 120K
C27 J150P
IC4
+2.8V
1 8
A0L VCC
2 7
A1 WP
3 6
A2 SC
4 5
GND SDA
TP5
(1)
2.2K
R15
10K
0V: ON-HOOK
+0.7V DC: OFF-HOOK
(2)
R48
1K
(8)
(9)
(10)
(11)
(12)
(14)
(15)
(3)
(7)
(20)