Panasonic KX-TCA151AXM Service Manual page 112

KX-TCD530AXM / KX-TCA151AXM
38 SCHEMATIC DIAGRAM (CORDLESS HANDSET)
Charge Current
F1
BATTERY+ 1
J1
BATTERY- 1
J2
CHARGE+
L4
1
10uH
J3
CHARGE-
L5
1
10uH
J4
Q5
R72
1K
840mVp-p
10.368MHz
+2.7V
Charge LED
Q10
Q11
115KHz
D1
L1 47uH
Q1
D
G
S
AG
R57 68
R82
TP16
D7
Q4
S1
POWER
Q9
(When ON Charge)
2.8V
1sec cycle
RXDSG
X1
PAON
PSEL
C24
SYRI
C58
C20
RSSI
RXDA
TXDA
SYEN
+4V
Q7
P0
P3
P2
PANEL
PWM1
TP10 TP11
4.0V DC 2.7V DC
+4V +2.7V
Q3
N.M.
TX-AF
+1.8V
1 P3_7/PD7
2 P3_1/PD1
3 P3_5/PD5
4 PD_4/PD4
5 P3_3/PD3
6 P3_2/PD2
100n
1.8V
7 VDD
0V
8 VSS
9 RFCLK
IC1
1.8V
10 VDDRF
100n
0V
11 VSSRF
12 Xtal1
13 CAP
100n
0V
14 AVS
1.8V
15 AVD
16 RSSI
17 RDI
18 CMPREF
19 TDO
20 LE
R20 1K
R21 1K
R63 10k
R64 10k
R60
1k
to LCD Module
112
TP12
+1.8V
1.8V DC
Q2
R4
15K
RX-AF (Speaker phone)
RX-AF (Handset)
R25 330R
R26 100R
R24
470K
+2.7V
ADC3 60
AVS_sense 59
DC_Sense 58
DC_stab 57
VABT3/RINGING 56
P2_6/stop_charge 55
P1_7/CHARGE/INT7n 54
P1_6/PON/INT6n 53
DC_I 52
P2_7/DC_CTRL 51
P2_5/SDA1 50
P2_4/SCL1 49
P2_3/ADC1 48
RESET
P2_2/ADC0 47
P2_!/PWM1 46
P2_0/PWM0 45
1.8V
VDD 44
0V
VSS 43
C21
SDA2 42
100n
SCL2/ 41
P3_0
+2.7V
(1)
(2)
(3)
(4)
(5)
(6)
(7)
Beep signal
C39
1u
SI
(8)
SCL
(9)
RESET
CS2
(10)
(11)
(12)
(13)
(14)
SCL
(15)
(16)
(17)
(18)
(19)
(20)
(21)