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(1)
*C451 10u
*C452 10p
C172
10p
270
R125
CIDOUT/MICn
24
CIDINn/MICp
23
VREFp
22
R107
CIDINp/P3_2
21
RINGp/P3_7
20
RINGn/P3_6
19
RINGOUT/RINGING/P3_5
18
R121
PARADET/P3_4
17
P4_4
16
P4_1/SPI2_CLK
15
P4_0/SPI2_EN
14
IC501
C504 0.1u
VDD1
13
C503 10p
RF_SUPPLY1
12
C502 1u
AVD_XTAL
11
XTAL1
10
XTAL2
9
AVS_XTAL
8
R501
REF_RES
7
R891
RFP0
6
RFP1
5
VSS_LNA2
4
RF_RXp
3
RF_RXn
2
VSS_LNA1
1
(2)
R892
C514 NC
+2.4V
VDD2
C515 NC
Q302
+3.0V
(3)
(4)
EEP_WP
(5)
SCL2
(6)
SDA2
(7)
R160
910
Q161
C
B
E
C165NC
C163 NC
Rx
TP9
C173
R164
R161
0.1u
2.7k
100k
TP10
Tx
R181
C184
NC
1u
+1.8V
VDD1: 1.8V
+1.8V
+3.0V
VDD1
Q301
C109
820p
R109
82k
R111
3.9k
C113
0.082u
R108
1k
Bell
1k
1k
C520 NC
F56k
3
1
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
220
ANT2
97 VSS/GNDplane1
to Handset
+3.0_CP
VDD2: 2.5V
VDDIO
122
QSPI_CS
QSPI_IO1
QSPI_IO2
Q141
R141
100k
R151
Q142
C
B
100k
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
Caller ID
+3.0V
R703
1k
CHARGE_DET
C
*Q702
E
TAM_WP
LCD_CS
VDD3: 3.0V
SPI2_CLK
EEP_WP
+3.0V
IC501
VBAT
110
ULP_XTAL
117
ULP_VBAT
+3.0_CP2
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
*Q362
C
LCD_CD
PF_SUP
P5_7
130
LCD_RST
P5_6
B
129
ACFL
E
P4_3/SPI_DI
101
+5.5V_1
P4_2/SPI2_DO
100
DC_SENSE
*R365
107
DC_I
108
47k
DC_CTRLN
111
DC_CTRL
109
+3.0_CP
+1.8V
IC502
ACFL
1 *CS
8
VCC
Q354
2 DO/IO1
QSPI_IO3
7
*HOLD/IO3
QSPI_SCK
3 *WP/IO2
6
CLK
QSPI_IO0
4 GND
5
DI/IO0
16M FLASH
KX-TG155 SCHEMATIC DIAGRAM (Base Unit_Main)
75
KX-TG155SK/KX-TGA660M
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
3
2
33u
4
1
C102 680p
L102
33u
P101 22
C115
NC
GAP
R115
NC
DCP: 5.5V
!
+5.5V_1
+5.5V
+5.5V
F301
L351
3.0A
Battery power supply from
Handset in power outage.
*Q701
E
CHG+
B
*R701
C
3.3k
B
VDD3
+3.0V
R301 0
to Q301
IC302
D301
2 OUT1
3
IN
4 OUT2
NC
ADJ
1
+3.0V
CHG+
*Q361
*Q351
*Q363
*IC351
2.7V
1 VOUT
2
VIN
+5.5V_1 +5.5V_1
3
NC
VSS
4
Q352
HAK_CL1
GND
NC: No Components
L1T
(YELLOW)
L1R
(GREEN)
DCP
DCM
CHARGE+
From Handset
CHARGE-
+5.5V
+5.5V_1
*R351
3.9k
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