Schematic Diagram (Base Unit) - Panasonic KX-TCD300FXS Service Manual

KX-TCD300FXS / KX-TCD300FXT / KX-TCA130FXS / KX-TCA130FXT

38 SCHEMATIC DIAGRAM (BASE UNIT)

DC/TEL_JACK
L2T L2R L1T
CN1
1
2
3
4
5
6
DCM DCP
C211
R3
22
(6332)
R5
22
(6332)
NC : No Components
J1
NC 33uH
(2125)
L1R
J2
33uH
NC
(2125)
J3
NC
(2125)
RLY1
NC
9
8
7
2
3
4
1 10
D2
NC
Q1
NC
7.8V 3.3V
+8V +3.3V VDD3
IC1
1 2
VIN VOUT
3 4
ADJ VOUT
2.1V
3.3V
(When no Beep)
Charge Terminal
TP15
TP16
L6
L7
C12
K1500P
C13
K1500P
R67
NC
+2.5V
R68
NC
0.35V
CN14
BUZ
R139
R140
470
Q15
(1005)
1K
Q16
(1005)
0.3V
+2.5V
IC3
1 8
A0 VCC
2 7
A1 WP
3 6
A2 SCL
4 5
VSS SDA
106
D3
C101
R106
K1000P
180K
R16
1M
C102 C_ID, Bell Signal
R107
180K K1000P
R17
1M
R144
NC
C167
R37
(1005)
18
18
(2125)
(2125)
IC7
+2.5V
1 8
IN/OUT1 Vcc
2 7
OUT/IN1
CONT1
3 6
CONT2
OUT/IN2
4 5
GND IN/OUT2
0.97V
C174
R40
K0.1
(1005)
3.3M
(1608)
X1
C43
Beep Signal
J27P
(1005)
C42
D6P
25mV p-p
0.7V
0V
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
10.368MHz