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Rx
C173
0.1u
(1)
Tx
*C451 10u
*C452 10p
C174
2200p
C172
10p
R125
270
CIDOUT/MICn
CIDINn/MICp 24
VREFp 23
CIDINp/P3_2 22
RINGp/P3_7 21
RINGn/P3_6 20
RINGOUT/RINGING/P3_5 19
PARADET/P3_4 18
P4_4 17
P4_1/SPI2_CLK 16
P4_0/SPI2_EN 15
IC501
VDD1 14
RF_SUPPLY1 13
AVD_XTAL 12
XTAL1 11
XTAL2 10
AVS_XTAL 9
REF_RES 8
RFP0 7
RFP1 6
VSS_LNA2 5
RF_RXp 4
RF_RXn 3
VSS_LNA1 2
1
(2)
C514 NC
+2.4V
C515 NC
Q302
+3.0V
(3)
(4)
EEP_WP
(5)
SCL2
(6)
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
VDD1: 1.8V
+1.8V
VDD1
+3.0V
Q301
C109
820p
R109
82k
R111
3.9k
C113
0.082u
Bell
R108
1k
R107
1k
R121
1k
C504
0.1u
10p
C503
C502
1u
C520 NC
R501
F56k
3
1
R891
220
10.368M
2
X501
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
Q142
Q155
C
NC
B
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
CHARGE_DET
R703
1k
*Q702
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
120
QSPI_IO3
QSPI_IO3
119
QSPI_IO2
QSPI_IO2
123
QSPI_IO1
QSPI_IO1
126
QSPI_IO0
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
QSPI_SCK
3 *WP/SIO2
6
SCLK
QSPI_IO0
4 GND
5
SI/SIO0
KX-TG7741/7742/7743
SCHEMATIC DIAGRAM (Base Unit_Main)
73
KX-TG7741S/KX-TG7742S/KX-TG7743S/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
L1T
3
2
4
1
C102 680p
L102 NC
L1R
P101 22
C115
NC
GAP
R115
NC
DCP: 5.5V
!
+5.5V
+5.5V
F301
3.0A
DCP
DCM
*Q701
CHG+
CHARGE+
*R701
3.3k
From Handset
CHARGE-
+3.0V
+5.5V
IC302
2 OUT1
3
IN
4 OUT2
ADJ
1
HAK_CL1
GND
NC: No Components
(YELLOW)
(GREEN)
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