Panasonic KX-TG7341BXM Service Manual page 81

GND
TP10
R25
100
GND
GND
DP0 DP1
(1)
(2)
(3)
+2.5_CP
VDD5
C403
2.5V
NC
GND
GND
C59 1u
CP_C2y
51
(4)
CP_VOUT1/LED1
52
CP_VOUT2/LED2
53
(5)
PON/P1_6
54
(6)
VDD2
55
(7)
P2_7/BXTAL
56
(8)
P1_5/INT5/RDI/VDDE
57
(9)
P1_4/INT4/TDOD
58
(10)
P1_3/INT3/SIO
59
(11)
P1_2/INT2/SK
60
(12)
P1_1/INT1/LE
61
(13)
P2_6/WTF_IN
62
(14)
P0_7/SPI_DI
63
(15)
P0_6/SPI_DO
64
(16)
P0_5/SPI_CLK
65
(17)
P0_4/SPI_EN
66
(18)
P0_3/SCL2
67
(19)
P0_2/SDA2
68
(20)
P0_1/URX/PWM0
69
(21)
P0_0/UTX
70
(22)
P5_0
71
(23)
P5_1
72
(24)
P5_2
73
(25)
P5_3
74
(26)
P5_4
75
(27)
JTAG
R67
100
(28) GND
(29)
(30)
SDA2
+2.5_CP +3.0V
SCL2
RA401
3 2
4 1
10k
GND
C401
100n
EEP_WP
1
8
A0 VCC
2
7
A1 WP
3 6
A2 SCL
4 5
GND SDA
*IC401
GND
R30
82
Q5
C2
C18
GND
NC 6.8k
R29 C22 R23 R20
120 1u 100k 3.9k
R27
GND GND GND
+1.8V
100k
RX_AF
GND
GND
GND
GND
GND
GND
Bell signal
GND
C30 22n
R71
1k
R36 100k
CIDOUT/
MICn
25
MICh
24
VREFm
23
LSRp
22
LSRn
21
AVD
20
LDO_CTRL
19
IC7 P4_4
18
SPI2_DI/P4_3
17
SPI2_DO/P4_2
16
SPI2_CLK/P4_1
15
SPI2_EN/P4_0
14
GND
VDD1
13
RF_SUPPLY1
12
AVD_XTAL
11
XTAL1
10
XTAL2
9
AVS_XTAL
8
REF_RES
7
RFP0
6
RFP1
5
VSS_LNA2
4
RF_RXn
3
RF_RXp
2
VSS_LNA1
1
GND
GND
GND GND
2.4V
+2.4V VDD2
GND
LINE_DC
R14
100k
GND
R13
680
TP9
R17
GND
2.2k
+1.8V
GND
GND GND GND
TX_AF
GND
C11
10p
GND
C13
10p
C28
220p
GND
R32
100k
C33
GND
10p
GND
1.8V
R63 NC
+1.8V
GND
10p
C36
LED1
Bell
SPI2_DI
SPI2_DO signal
SPI2_CLK
TAM_EN
GND
C65
GND
10p
C66 1u
GND
C67 NC
R64
GND 3
56k F
GND
X1
R65 220
ANT1
RXON
RF_RXn
RX_RF
RF_RXp
GND
TXON
TXn
TX_RF
TXp
VDD_PADRV
PSEL
PON
R66 220
ANT2
KX-TG7341BX SCHEMATIC DIAGRAM (Base Unit_Main)
81
Loop Current
D3
1 2
4 3
E Q2
B
C
GND
GND GND
R7
5.6M
GND GND
R9
5.6M
GND GND
C3
C5
R3
K1000p 180k 1.5n
R4
1M
C6 R5 C4
K1000p 180k 1.5n
R6
Charge Current
1M
3.0V
+3.0V
VDD3
+8.0V
IC1
2
3
Output
4 Input
Fin
ADJ/GND
1
GND GND GND
VDD1
D12
NC
GND
1.2V p-p
GND
0.85V
0V
1
+1.8V
2
GND
+2.4V
CHARGE
R54
1k
R53
NC
To RF
Q23
GND GND
RXON
RF_RXn
RF_RXp
TXON
TXn
TXp
VDD_PADRV
PSEL
PON
+3.0V
NC: No Components
KX-TG7341BX/KX-TGA731BX
L1
L2R L1R L1T L2T
L2
GND
Caller ID,
Bell Signal
DCP
F1 3A
DCM
GND
DC_IN
J101
GND GND GND
GND
R52
TP16
3.3k Charge +
Q22
TP16-sub
D23
TP15-sub
TP15
Charge -
GND