Panasonic KX-TG7731S Service Manual page 75

Rx
C173
0.1u
(1)
Tx
*C451
*C452
C174 2200p
C172 10p
R125 270
CIDOUT/MICn
24
CIDINn/MICp
23
VREFp
22
CIDINp/P3_2
21
RINGp/P3_7
20
RINGn/P3_6
19
RINGOUT/RINGING/P3_5
18
PARADET/P3_4
17
P4_4
16
P4_1/SPI2_CLK
15
P4_0/SPI2_EN
14
IC501
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_RXp
3
RF_RXn
2
VSS_LNA1
1
(2)
C514 NC
+2.4V
C515 NC
Q302
+3.0V
(3)
(4)
EEP_WP
(5)
(6) SCL2
SDA2
(7)
R160
910
Q161
C
B
E
C165 NC
C163 NC
TP9
R164 R161
2.7k 100k
R151
100k
TP10
C184
1u
+1.8V
NC
VDD1: 1.8V
NC
+3.0V
+1.8V
VDD1
Q301
C109
820p
R109
82k
R111 3.9k
C113
0.082u
R108 1k
Bell
R107 1k
R121 1k
C504 0.1u
C503 10p
C502 1u
C520 NC
R501 F56k
3 1
R891 220
10.368M
X501 2
132 VSS/GNDplane16
131 VSS/GNDplane15
128 VSS/GNDplane14
127 VSS/GNDplane13
124 VSS/GNDplane12
from Handset
114 VSS/GNDplane11
113 VSS/GNDplane10
ANT1
112 VSS/GNDplane9
RXON
106 VSS/GNDplane8
RF_RXp
105 VSS/GNDplane7
RF_RXn
104 VSS/GNDplane6
103 VSS/GNDplane5
TXON
102 VSS/GNDplane4
RF_TXp
99 VSS/GNDplane3
RF_TXn
98 VSS/GNDplane2
R892 220
ANT2
97 VSS/GNDplane1
VDD2
to Handset
+3.0_CP
VDD2: 2.5V
122 VDDIO
QSPI_CS
QSPI_IO1
QSPI_IO2
Q141
R141
100k
Q155 Q142
C
B
NC
E
C107 R103 R101 C103
0.01u 180k 4.7M 0.01u
R105 1M C105 680p
C108 R104 R102 C104
0.01u 180k 4.7M 0.01u
R106 1M C106 680p
+3.0V
Caller ID
R703
CHARGE_DET
1k
*Q702
NC
VDD3: 3.0V
LCD_CS
SPI2_CLK
VDD3
EEP_WP
+3.0V
IC501
VBAT
110
ULP_XTAL
117
ULP_VBAT
116
ULP_PORT
118
ULP_MAIN_CTRL
115
QSPI_SCK
QSPI_SCK
QSPI_IO3
120
QSPI_IO3
QSPI_IO2
119
QSPI_IO2
QSPI_IO1
123
QSPI_IO1
QSPI_IO0
126
QSPI_IO0
121 QSPI_CS
QSPI_CS
125
LCD_CD
P5_7
130
LCD_RST
P5_6
129 TAM_WP
P4_3/SPI_DI
101
P4_2/SPI2_DO
100
DC_SENSE
107
DC_I
108
DC_CTRLN
111
DC_CTRL
109
+3.0_CP
IC502
16M FLASH
1 *CS 8
VCC
2 SO/SIO1 QSPI_IO3
7
NC/SIO3
3 *WP/SIO2 QSPI_SCK
6
SCLK
QSPI_IO0
4 GND 5
SI/SIO0
KX-TG7731/7732/7733 SCHEMATIC DIAGRAM (Base Unit_Main)
75
KX-TG7731S/KX-TG7732S/KX-TG7733S/KX-TGA470S
REFERENCE
1XX : TEL LINE
3XX : POWER, CHARGE
4XX : MIC, SP
5XX : BBIC
6XX : FLASH, EEPROM, KEY, LCD
7XX : FOR DK/BT
8XX : RF
C101 680p
D101
L101 NC
3 2
(YELLOW)
4 1
C102 680p
L102 NC
P101 22 (GREEN)
C115
NC
GAP
R115
NC
DCP: 5.5V
+5.5V
!
+5.5V
F301
3.0A
DCP
DCM
NC
*Q701
CHG+
CHARGE+
*R701
NC
From Handset
CHARGE-
+5.5V
+3.0V
IC302
3
2 OUT1
IN
4 OUT2
ADJ
1
HAK_CL1
GND
NC: No Components
L1T
L1R