Panasonic KX-TG4763B Service Manual page 75

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