Read Panasonic KX-TG7207UAJ / KX-TG7207UAM / KX-TG7207UAS / KX-TG7207UAT / KX-TG7208UAM / KX-TG7208UAS / KX-TG7208UAT / KX-TGA720UAJ / KX-TGA720UAM / KX-TGA720UAS / KX-TGA720UAT Service Manual online
66
KX-TG7207UA/KX-TG7208UA/KX-TGA720UA
12.3. Schematic Diagram (Handset)
J1
J2
5.6n
F1
4.0V
330u
C1
47u
L1
6.3V
330u
C2
100m R45
100m
R1
BATTERY
+3.3V
VDD3
+2.5V
+1.8V
VDD2
VDD1
10u
L4
10u
L5
+2.5V
+1.8V
AG
1u
C40
1u
C42
+2.5V
820k
R95
430k
R94
+2.5V
POWER
1u
C39
TP20
TP21
BAT
CN3
1
CN3
2
CN3
3
CN3
4
CN3
5
CN3
6
CN3
7
CN3
8
CN3
9
CN3
10
CN3
11
CN3
12
CN3
13
CN3
14
CN3
15
CN3
16
CN3
17
CN3
18
AST
1
2
SHARP
1
2
0
1
2
TALK
12
1u
C41
68
R2
470
R5
10k
R6
S1
1
2
J3
5
1
2
3
1
2
4
12
9
1
2
2
1
2
7
12
8
1
2
6
12
1
12
J4
100n
C26
C4
NC
C9
NC
BATTERY
D8
2
1
Q9
B
C
E
C5
2.2u
C10
2.2u
Q5
B
C
E
INT
12
R
12
SOFT_A
12
SOFT_B
12
SOFT_C
12
UP
12
DO
WN
12
RIGHT
12
LEFT
12
R19
NC
AG
2.2k
R25
3.3k
R24
470
R23
SP
12
CANCEL
12
C119
NC
C118
NC
RA4
NC
1
2
3
45
6
7
8
0
R93
100n
C43
100n
C44
100n
C45
100n
C46
100n
C47
Q4
B
C
E
4
PD1/SIO
5
LE
6
P31/PD1
7
P32/PD2
8
TDO
9
RDI
10
RSSI
11
VSSRF
12
CAP
13
XTAL1
14
AVS
15
AVD_XTAL
16
VDDRF
17
RFCLKd
18
VDDIO1
19
VDD1
20
VSS1
21
TDOD/P27
22
SDA1/P25
29
P42
30
P43
31
P44
32
P45
33
P46
34
P47
35
VSSP
A1
36
P
A
OUTp/P52
37
VDDP
A
38
P
A
OUTm/P51
39
VSSP
A2
40
VSS2
41
VDDIO2
42
VDD2
43
PCM1_CLK/P33/PD3
44
PCM1_DOUT/P34/PD4
45
PCM1_DIN/P35/PD5
46
PCM1_FSC/P36/PD6
47
*INT0/P10
54
P05/SPI1_CLK/PCM1_CLK
55
P06/SPI1_DO
56
P07/SPI1_DI
57
VSS3
58
VDD3
59
VDDIO3
60
P23/ADC1
61
P53/PCM2_CLK/DABx
62
P54/PCM2_FSC/DABx
63
P55/PCM2_DOUT/DABx
64
P56/PCM2_IN/DABx
65
P17/CHARGE/INT7
66
*RST
67
DC_STAB
68
DC_I
69
DC_CTRL/P57
70
DC_Sense
71
MODE2
72
VBATp/SOCp
79
A
VS2
80
A
VD2
81
LSRn
82
LSRp
83
RINGp/SOCn
84
MICh/RINGOUT
85
MICn/CIDOUT
86
VREFm
87
VB
UF
88
MICp
89
VREFp/CIDINp
90
CIDINn
91
RINGn
92
P
ARAn/DC_I2
93
P
ARAp/DC_Sense2
94
P
ARA
OUT
95
P30/DC_CTRL2
96
P14/*INT4
97
P13/*INT3
1
LED1/PWM0/P20
2
LED2/PWM1/P21
3
SK
23
SCL1/P24
24
VDDE/*INT5/P15
25
*INT2/P12
26
BXT
A
L/P50
27
P40
28
P41
48
SPI2_CLK/P37
49
SPI2_DO/UTX1/P00
50
SPI2_DI/URX1/P01
51
P02/JTIO
52
P03/SDA2/UTX2
53
P04/SCL2/URX2/SPI1_EN
73
VBAT1
74
LDO1_CTRL
75
LDO2_CTRL
76
P16/PON/INT6
77
P26/ST
OP_CHARGE
78
LDO1_sense
98
P22/CLK100
99
ADC0
100
P11/*INT1
Q12
B
C
E
0
R46
0
R47
3.3k
R14
C95 1u
C25100n
C25100n
2.2k
R15
C15
1u
220k
R7
39k
R11
C12
10uF
C3
100n
C19 100n
C21
100n
C22
100n
C24 100n
C48
100n
C113
100n
C11
10n
C13
10n
C38
10n
C114
NC
1n
C18
C49
NC
C23
NC
C98 NC
C27
NC
C101
100n
C8
220n
C34
1u
C36
NC
X1
1
3
2
390
L6
4.7
R12
C6 9p
C7 18p
47
RA3
1
2
3
45
6
7
8
L8
10p
C123
10p
C124
Q3
Q2
100k
R122
100k
R123
100k
R124
+2.5V
AG
L7
150
+3.3V
R126 NC
0
R127
10k
RA6
1
2
3
4
D7
*LED4
A
K
*Q7
B
C
E
*RA5
1
23
4
*RA1
1
2
3
45
6
7
8
12
R13
D1
LED2
LED3
*LED5
*LED6
*LED7
*LED8
*LED9
Q1
LED1
DC_I
LDO1_CTRL
LDO2_CTRL
RESET
JTAG
LCD_RESET
CHARGE
DC_CTL
DC_I
LDO2_CTRL
LDO1_CTRL
LDO1_CTRL
COL0
COL1
COL2
RO
W
0
RO
W
1
RO
W
3
LCD_RESET
RO
W
2
CHARGE
DC_CTL
ST
OP_CHARGE
JTAG
ADC3
URX
UTX
KEY_LED
ST
OP_CHARGE
RO
W
0
COL4
COL3
BK_LED
BK_LED
LCD_CSB
SK
SK
RO
W
1
SIO
LE
COL1
COL2
TD0
RDI
LE
COL1
COL2
TD0
RDI
LCD_RS
ROW2
ROW2
COL5
COL0
URX
UTX
ADC3
A
VS_sense
J2
RFCLK
COL3
COL4
COL5
LCD_SI
KEY_LED
RO
W
3
AVS_sense
LCD_SCL
LCD_SI
LCD_CSB
LCD_RS
LCD_SCL
J2
*IC1
NC: No Components
BBIC
(1)
(2)
(3)
(4)
(5)
(5)
(6)
(7)
(8)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(12)
(13)
1 s
(When on charge)
Charge Current
3.3 V
2.5 V
1.8 V
115 kHz
(Talk Mode)
0.7 V
0 V
25 mVp-p
TX DATA
RX DATA
Click on the first or last page to see other KX-TG7207UAJ / KX-TG7207UAM / KX-TG7207UAS / KX-TG7207UAT / KX-TG7208UAM / KX-TG7208UAS / KX-TG7208UAT / KX-TGA720UAJ / KX-TGA720UAM / KX-TGA720UAS / KX-TGA720UAT service manuals if exist.