Panasonic KX-TG8421EB

88
KX-TG8421E/KX-TG8422E/KX-TG8423E/KX-TG8424E/KX-TGA840E
13.4. Schematic Diagram (Handset)
BATT+
BATT-
0.1
R45
BATTERY
GND
CHG(+)
CHG(-)
R65
( )
1k
R66
5.6n
F1
D8
( )
100
R63
C36
( )
C45
K0.1u
C121
( )
C35
( )
C15
( )
+1.8V
3.3k
R22
GND
K1u
C47
W_LED-
W_LED+
GND
GND
GND
GND
GND
GND
GND
GND
GNDGND
GND
GND
C44
K0.1u
C48
( )
C150
( )
GND
1.2k
R7
100
R8
+1.8V
k0.1u
C40
D10p
C97
D10p
C96
K0.01u
C14
RF_RXp
ANT2
PON
PSEL
VDD_PADRV
TXp
TXn
TXON
RXON
ANT1
RF_RXn
2.2k
R25
0
R215
Q7
Q2
C41
( )
BATTERY
K0.1u
C13
K0.1u
C11
2
12
5
12
4
12
AST
12
SP
12
TALK
12
8
12
1
12
R
12
SOFT_A
12
3
12
9
12
SHARP
12
SOFT_C
12
0
12
7
12
6
12
0
R225
S1
12
3.3k
RA4
1
2
3
4
R4
( )
K1u
C50
K1u
C49
820
R28
820R27
K1u
C51
CP+4.0V
CP+4.0V
CP+2.5V
C3
( )
C38
( )
56k
R203
F
10k
R64
GND
CP+4.0V
GND
BATTERY
L4
( )
L5
( )
L8
( )
C7
( )
GND
C12
K10u
D10p
C184
C43
D10p
C46
D10p
C16 K10u
3.9k
R2
GND_0
GND_0
C39
( )
GND
6.3V
330u
C2 CP2
Q9
10
R20
D7
27k
R30
C182
( )
1k
R6
R31
( )
C147
( )
0
R12
C53
K10u
C52
K10u
D10p
C17
D10p
C18
VREFm
D1
1kRA1
1 2 3 45
6 7 8
1k
RA2
1 23
4
GND
GND
27k
R332
Q12
GND
K1u
C332
BATTERY
GND
Q11
27k
R331
1M
R330
D10p
C54
GND
D10p
C55
GND
CP4.0V
POWER
CP2.5V
X_CLK
( )
C4
GND
K0.1u
C5
GND
VREFm
C6
( )
CP+2.5V
220
R52
3.3k
R53
1k
R55
3.3k
R50
K1u
16V
C101
( )
C103
K1u
C27
K1u
16V
C102
10k
R54
( )
C28
( )
C107
GND
470
R51
( )
C106
C105
( )
25V
K1u
C100
C104
( )
CN31
Vss
CN32
Vg
CN33
XV0
CN34
V0
CN35
Vcc
CN36
Vss
CN37
Vcc
CN38
/CS
CN39
IF3
CN310
IF1/IF2
CN311
RST
CN312
Vcc
CN313
RS(A0)
CN314
SI
CN315
Vcc
CN316
SCL
CN317
Vm
CN318
Vss
TEST
LED12
UTX
URX
GND
BAT
JTAG
220
RA61
1
23
4
K1u
C331
6.3V
330u
C1CP1
82
R71
SW1
1
2
36
5
4
7
8
X1
10.368M
1
3
2
LED1
LED5 LED6
LED2
LED3 LED4
Q4
270
R305
270
R302
270
R301
270
R300
270
R304
270
R303
GND
C138
( )
( )
C139
D10p
C29
1
VSS_LNA1
2
RF_RXp
21
CIDINp/VREFp
3
RF_RXn
4
VSS_LNA2
5
RFP1
6
RFP0
7
REF_RES
8
AVS_XTAL
22
RINGp/P3_7
23
RINGn/P3_6
24
RINGOUT/RINGING/P3_5
25
PARADET/P3_4
26
ADC0/P3_3
27
ADC1/INT0/P1_0
28
NTC/ADC2
41
CP_C2y
42
CP_VOUT1/LED1
43
CP_VOUT2/LED2
44
PON/P1_6
45
VDD1
46
P2_7/BXTAL
81
GND
9
XTAL2
10
XTAL1
11
AVD_XTAL
12
RF_SUPPLY1
13
LDO_CTRL
14
AVD
15
LSRn
16
LSRp
17
VREFm
18
MICh
19
CIDOUT/MICn
20
CIDINn/MICp
29
SOCp
30
SOCn
31
CHARGE_CTRL
32
P1_7/CHARGE
33
PAOUTp/P3_1
34
VDDPA
35
PAOUTn/P3_0
36
VBAT1
37
CP_C1x
38
CP_C2x
39
CP_C1y
40
VBAT2
47
P1_5/INT5/RDI/VDDE
48
P1_4/INT4/TDOD
49
P1_3/INT3/SIO
50
P1_2/INT2/SK
51
P1_1/INT1/LE
52
P2_6/WTF_IN
53
P0_7/SPI_DI
54
P0_6/SPI_DO
55
P0_5/SPI_CLK
56
P0_4/SPI_EN
57
P0_3/SCL2
58
P0_2/SDA2
59
P0_1/URX
60
P0_0/UTX
61
RSTn
62
JTAG
63
P2_5/PCM_FSC/SF
64
P2_4/SCL1/PCM_DO/DP3
65
P2_3/SDA1/PCM_DI/DP2
66
P2_2/PCM_CLK/CLK100
67
P2_1/ECZ2/PWM1/LED4
68
P2_0/ECZ1/PWM0/LED3
69
VDD2
70
LDORF_CTRL
71
RF_SUPPLY2
72
RFP0n
73
RFP4
76
VSS_PADR1
79
VSS_PADR2
77
RF_TXp
80
RFP2
75
VDD_PADR
78
RF_TXn
74
RFP3
LDO_CTRL
COL0
SOCn
CHARGE_CTRL
SOCp
CHARGE
KEY_LED
COL3
COL4
COL5
ROW0
COL1
COL2
ROW2 ROW1
ROW3 ROW2 ROW1
JTAG
CHARGE
CHARGE_CTRL
URX
UTX
BELL_LED
COL0
COL1
COL2
COL3
COL4
COL5
KEY_LED
LCD_CSB
LCD_RESET
LCD_CD
LCD_SDA
LCD_SCL
SOCn
ROW3
ROW0LDO_CTRL
LCD_SCL
LCD_SDA
LCD_CD
LCD_RESET
LCD_CSB
SOCpBELL_LED
To Charge
Terminal
To Battery
WHITE LED
ON LCD UNIT
KEY BACKLIT
(Blue)
TO RF BLOCK
BELL LED
(Amber)
To PA
To Color LCD Unit
LCD BACKLIT
White
*IC1
(1)
(2)
(3)
(4)
(5)
(7)
(6)
(9)
(10)
(11)
(12)
(13)
(14)
(8)
NC: No Components
Charge Current
0.75V
0V
250mVp-p
2.5V 4.0V
TX _RF
RX _RF