Panasonic KX-TCD450 Series Service Manual page 91

(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
R8 C14
(11)
C59
C21D10P
470 K0.1
K0.1
(12)
R24
C56
470
K0.1
(13)
C70
(26)
J68P
POWER_KEY
(27)
POWER_ON
(30)
1V
(31)
C36 K0.1
22
C29
C34
R27
D10P
D10P
R21 C15 R28 C35
C20 22
470 K0.1 6.3V10u
C38
C17 D10P
D10P
D10P
C41
D10P
4.7 R12
TXDA
RSSI
SYCL
SYDA
SYEN
RXDSG
400 s typically SYRI
RXDA
2.5V
0.5V
DRON
0V
PSEL
C65 C12
C24 K1500P
D10P K0.1
R2 220K
R17 68K
SP+
R18 56K
VIN VO1
4 5
D19 AMP
C66
FC1 VCC
3 6
C68 D10P +
D10P
FC2 GND -
2 7
CD VO2
SPEAKER
1 8
C67
IC4
D10P
C8
C10
SP-
K1.0
K0.1
REV+
C60 C26
D7
K2.2 D10P +
4.7V(M)
J12
-
C25
RECIEVER
D9
REV-
D10P
4.7V(M)
L4
5 SP1
0
C19
4 SP2
D10P
3 MIC2
R5
2 MIC1
33 C61
1 GND
D10P
JACK
C71 NC
HEADSET JACK
R19
100K 33
C62
C55
R4
C27 D10P D10P
K0.47
MIC
MI C
R410 33
KX-A145RUM/RUT SCHEMATIC DIAGRAM (HANDSET)
91
KX-TCD450RUM / KX-A145RUM / KX-TCD450RUT / KX-A145RUT
J13
D20
A1
GND
1 GND 28
VCC_PA 27
2 GND
GND GND 26
3
4 TXDA PAON 25
5 RSSI PSEL 24
6 VCC_OC GND 23
IC10
7 GND GND 22
8 SYCL GND 21
9 SYDA RXDA 20
10 SYEN GND 19
11 GND GND 18
ALPS_RF_UGSE6
4.7u L5