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VCCA
(1)
(2)
(3)
(4)
+5.5V
*C458
*C457
X501
13.824M
R509NC
(5)
(6)
C120
(7)
(8)
1000p
(9)
(10)
(11)
DCIN3/LIN1
DCIN0/LIN0
DOUBCAPP1
*IC501
DOUBCAPP
DOUBCAPN
GND
DOUBCAPN1
(12)
C520
0.1u
(13)
(14)
(15)
+3.0V
*IC601
16M FLASH
1
8
*CS
VCC
2 SO/SIO1
7
NC/SIO3
3 *WP/SIO2
6
SCLK
4
5
GND
SI/SIO0
C601
0.1u
+3.0V
R160
910
Rx
Q161
C
E
NC
C165
C173
R177
R164
R172
100k
1k
2.7k
K0.22u
C175 1000p
Q171
C174
NC
C184
0.033u
K1.0u
0.033u
R121
390k
C121 680p
R122
390k
C122 680p
VDDC
*C459
NC
1000p
C460
C461
NC
+3.0V
+3.0V
VCCA
R501 10
VREF
C505 10u
22
MIN
C506
VBG
21
VCCA
20
1u
VREF
19
18
DCIN2
17
DCIN1
16
15
DOUBOUT
14
13
C504
1u
12
11
C521
1u
L501
10
VBAT
9
C501
100n
C502
COREOUT
8
10u
0.1u
VDDC2
7
GPIO[26]
6
GPIO[25]
5
GPIO[24]
4
GPIO[23]
3
GPIO[22]
2
GPIO[21]
1
4
1
GPIO[20]
3
2
VDDC
RA504 68
+3.0V
VDDC
1.2V
+3.0V
C611 0.1u
IC611
64K EEPROM
1 A0
8
VCC
2 A1
7
WP
3 A2
6
SCL
4 VSS
5
SDA
Tx
Q141
B
C163
NC
R161
100k
Q142
R151
C
B
100k
E
Caller ID
Bell
HOOK
+3.0V
BELL
Q111
CHARGE_DET
VBAT
LCD_RST
HOOK
LCD_CD
SPI2_CLK
SPI2_DO
LCD_CS
UTX
URX
ZA1
10
11
12
GND
1 2 3 4 5
GND
KX-TG4763
SCHEMATIC DIAGRAM (Base Unit_Main)
75
KX-TG4763B/KX-TGA470B/KX-TGA405B
REFERENCE
1XX : TEL LINE
3XX : POWER, CHARGE
4XX : MIC, SP
5XX : BBIC
R141
6XX : FLASH, EEPROM, KEY, LCD
7XX : FOR DK/BT
100k
8XX : RF
C101 680p
D101
NC
L101
3
2
4
1
C102 680p
L102 NC
C115
NC
R115
NC
+5.5V
+5.5V
+3.0V
*R703
1k
*R701
3.3k
*Q701
*Q702
+5.5V
VBAT
IC302
2
3
OUT1
IN
4
OUT2
ADJ
1
NC
9
8
7
HAK_CL1
6
NC: No Components
(YELLOW)
L1T
(GREEN)
L1R
P101 22
GAP
!
F301
3.0A
DCP
DCM
CHG+
CHARGE+
CHARGE-
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