Panasonic KX-TCA151AXM Service Manual page 113

(1)
C86 1u
C15 1u
C48
R52
C16
0.047u 18K
C14 100n
R34
(2)
100n 180K
C13
R35
100n 27K
(3)
(4)
REV_TEST2
(5)
REV_TEST1
C95 N.M.
(2125)
R29
2.2K
(6)
C10 100n
(7)
R37
33R
R38
33R
0V (without Headset)
1V (with Headset)
MIDI signal
(8)
RESET
(9)
+2.7V
IC10
2.7V
1 8
A0 VCC
2 7
A1 WP
3 6
A2 SCL
4 5
VSS SDA
0V
(10)
(11)
(12)
(13)
(14)
SCL
(15)
(16)
SW1
C
P PUSH
(17)
COM B
A
D
(18)
(19)
ROW3
ROW2
TALK SOFT_A
ROW1
5 8
ROW0
0
(20)
(21)
+4V
SP_TEST2
IC2
1 8
CD VO2
0V
2
FC2 GND
7
C80
3 6
FC1 VCC
3.9V
2.2u
Speaker
21-25
4 5
VIN VO1
SP_TEST1
R36 68K
C38 470P
C77 10P
Receiver
HEADSET JACK
C42 R75 C43
1
10u 0R N.M.
5
4
3
MIC
2
R50
100R
P2
P3
P0
37 VIB
38 DrvGND
PANEL
39 PANEL
40 PWM0
PWM1
41 PWM1
42 PWM2
2.7V 43 PWM3
44 DVDD
45 DGND
46 TEST1
47 PTESTIN2
48 RESET
CLEAR
1 SP MAIL 4
9 6 3 2
# R INT 7
+2.7V
Q8
R65
CN4
N.M.
IC5
1
C70
1A VCC
2
3Y
3
100n
2A
4
GND
0V
R51 1M
X2
+2.7V
R62 10k
0V
DGND 24
D2/SCLK 23
D3/ARQ 22
D4/SRQ 21
D5/ERQ 20
D5/TESTO 19
IC4
D7/TESTO 18
WR 17
0V
RD 16
CS 15
ILE 14
PTESTO2 13
TP2
TX-DATA
TXDA
RSSI
TP13 TP9 TP8 CLK TP6 TP5 TP4 TP3
SYCL
SYDA
SYEN
RXDSG
SYRI
RXDA
PSEL
PAON
KX-TCA151AXM: SCHEMATIC DIAGRAM (CORDLESS HANDSET)
113
KX-TCD530AXM / KX-TCA151AXM
2.7V
8
7
1Y
6
3A
5
2Y
+4V
A201
TP15
TP1
1 GND 28
GND
2 GND 27
VCC_PA
3 26
GND
GND
4
PAON 25
TXDA
R55
5 RSSI
PSEL 24
4.2V
10K
6 VCC_OC
GND 23
7 GND IC3
GND 22
8 SYCL
GND 21
9 SYDA
RXDA 20
10 SYEN GND 19
11 GND 18
GND
L2 4.7uH
RX-DATA