Panasonic KX-TCD450 Series Service Manual page 88

KX-TCD450RUM / KX-A145RUM / KX-TCD450RUT / KX-A145RUT
37 SCHEMATIC DIAGRAM (BASE UNIT)
TP2
TP5
LINE VOL TAGE 60V DC
J1
1
JMP1
2
NC
3
4
5
6 500V680P
JMP2
NC
JMP3
NC
JMP4
NC
TP101 TP89
TP90
DC_PLUG
2
D4
1
J2
: No Components
TP3
SA1
C31
60v
DC
TP40
JMP8
JMP5
NC
NC
OPTION4
RLY1
NC
9
8
7
NC
2
3
4
1 10
D1
NC
Q1
NC
J100P
C87
+4.0V DC
+5.5V +4.0V
TP91
Q9
1 2
VIN VOUT
3 4
ADJ VOUT
C79
K1000P
R43
33 TP84
L4
R44
33
0
R45
NC
TP85
+60V DC ON-HOOK
NC
+10V DC OFF-HOOK
L2
TP39
NC
C63
R77 0
C1
500V680P
C2
500V680P
+2.65V
C3 K0.022
R1 1.5M
C4 K0.022
R2 1.5M
+2.65V
IC1
1 8
A0 VCC
2 7
A1 WP
3 6
A2 SCL
4 5
GND SDA
32K_EEPROM
+2.65V
10K
R84
IC4
A11
1 32
A11 0E
A09 2 31
A9 A10
A08
3 30
A8 CE
A13 4 29
A13 D7
A14
5 28
A14 D6
A17
6 27
A17 D5
7 26
WR D4
8 25
VCC D3
A18 9 24
A18 GND
A16
10 23
A16 D2
A15 11 22
A15 D1
A12
12 21
A12 D0
A07 A00
13 20
A7 A0
A01
A06
14 19
A6 A1
A02
A05
15 18
A5 A2
A03
A04 16 17
A4 A3
88
OV ON-HOOK
+0.7V DC OFF-HOOK
TP45
D2 Q2
R7
100K
R8
2.7K
R70
NC
Q3
2.2K
C7
R10
K3300P
R9 10K
J100P
C52
NC
Q11
J100P
C59
+4.0V
R37 0
A08
R36 0
A14
R39 0
Q10
A11
R40 0
A02
+2.65V
10K
S1
R58
3 4
2 1
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)