Panasonic KX-A142EXM - Page 107

TX-AF
RX-AF
1.8V DC IN TALK MODE
Frequency 10.368MHz
TX - DATA
RX - DATA
1V
MIC
R5
330
C4
K0.1
R12.2K
R7
330
C56.3V4.7
C6
D10P
C7
K0.1
R8
330
C8
D10P
C10D10P
C11D10P
C16
C1P
C17
J18P
S10
C24
K0.1
C26
K0.1
C28
K0.1
C29
K0.1
C30
K0.1
R12
NC
C12D10P
C31D10P
R18
33
C57 J33P
A201
L3
4.7uH
D3
R20 0
R17
0
TP11
TP1
TP2
R23
2.2
C62 K1.0
C60 K4.7
R22
0
C63 D10P
C64 K1.0
X1
TP13
C55
C2P
C56
C2P
C54 D10P
TP17TP16
C65 C2P
C25
NC
D5
NC
C66 C2P
TP15
IC3
5 RSSI
6 VCC_OC
7 GND
8 SYCL
9 SYDA
10 SYEN
11 GND
12 RXDSG
13 SYRI 14 GND 16 GND 17 GND
18GND
19GND
20RXDA
21GND
22GND
23GND
24PA O N
25GND
26GND
27VCC_PA
28GND
29GND 30GND 31GND 32GND 33RF1 34GND
GND
1
GND
2
GND3
TXDA4
CN5
1
SP+
2
SP-
D6
D7
TP19
R24
0
’POWER’
SP
-
+
400µs typically
2.5V
0.5V
0V
KX-A142EXM/EXS SCHEMATIC DIAGRAM (HANDSET)
(1)
(25)
(7)
(6)
(5)
(4)
(3)
(2)
(26)
(27)
(28)
(29)
(30)
(38)
(31)
(24)
(8)
~
(32)
(33)
(37)
(34)
~
www.freeservicemanuals.info
1/2/2015
Digitized in Heiloo, Holland