Panasonic KX-TG7125RUS / KX-TG7125RUT / KX-TGA711RUS / KX-TGA711RUT Service Manual ▷ View online
69
KX-TG7125RUS/KX-TG7125RUT/KX-TGA711RUS/KX-TGA711RUT
12 Schematic Diagram
12.1. For Schematic Diagram
12.1.1. Base Unit (Schematic Diagram (Base Unit_Main))
Notes:
1. DC voltage measurements are taken with voltmeter from the negative voltage line.
2. The schematic diagrams may be modified at any time with the development of new technology.
12.1.2. Handset (Schematic Diagram (Handset))
Notes:
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.
2. The schematic diagram may be modified at any time with the development of new technology.
2. The schematic diagram may be modified at any time with the development of new technology.
12.1.3. Charger Unit (Schematic Diagram (Charger Unit))
Notes:
1. DC voltage measurements are taken with voltmeter from the negative voltage line.
2. The schematic diagram may be modified at any time with the development of new technology.
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KX-TG7125RUS/KX-TG7125RUT/KX-TGA711RUS/KX-TGA711RUT
12.2. Schematic Diagram (Base Unit_Main)
C
L2R
J1
NC
(2125)
J2
NC
(2125)
L1
33u
L2
33u
K680p
C9
K680p
C10
D3
4
1
3
2
C
C
C
R11
10
(3216)
C
J3
NC
J4
0
100k
R14
2.7k
R15
(2125)
C
C11
NC
LINE_DC
10k
R16
C
C
C13
NC
C
27k
R18
Q5
3
2
1
C20
NC
47k
R24
C21
NC
C
R25
NC
R26
NC
NC
D7
12
C
Q3
3
2
1
SA1
NC
D15
12
D16
NC
1
2
R2
NC
(3216)
Q2
BC847B
1
3
2
Q4
1
3
2
C18
NC
C
C
K4700p
C14
8.2k
R19
C
100k
R23
K0.056u
C23
C
C24
NC
C
+2.5V
C
C
C
C
100k
R27
470k
R28
C
C
D9
12
NC
D2
1
2
Q1
NC
2
3
1
C
R1
10k
(1005)
C
C1
NC
(1005)
C
1500p
C3
1M
R4
C5
K1000p
1500p
C4
1M
R6
R5
180k
C6
K1000p
R7
NC
100k
R8
C
C
+2.5V
D5
NC
1
2
D6
NC
12
R9
NC
100k
R10
C
C
IC7
1
*INT1/P11
2
VDDIO1
3
VDD1
4
VSS1
5
SDA1/P25
6
SCL1/P24
7
*INT5/VDDE/P15
8
*INT2/P12
9
AVD
10
AVS
11
CAP
12
Xtal1
13
VSSRF
14
RFCLKp
15
RSSI/RFCLKm
16
VDDRF
17
RFCLKd
18
TDO
19
RDI
20
SK
21
PD1/SIO
22
LE
23
P31/PD1
24
P32/PD2
25
P33/PD3
26
P34/PD4
27
TDOD/P35/PD5
28
P36/PD6
29
VSS2
30
VDDIO2
31
VDD2
32
32: PCM_FSC/*INT0/P10
33
P00/UTX
34
P01/URX
35
P02/JTIO
36
P03/SDA2
37
P04/SCL2
38
P05/SPICLK/PCM_CLK
39
P06/SPIDO/PCM_DOUT
40
P07/SPIDI/PCM_DIN
41
VSS3
42
VDD3
43
P23/ADC1
44
P17/CHARGE/INT7
45
*RST
46
VBAT1
47
LDO1_CTRL
48
LDO2_CTRL
49
49: LDO1_Sense
50
AVS2
51
AVD2
52
*CIDIN
53
*LSR/REF
54
LSRp/REF
55
RINGING
56
*MIC/CIDOUT
57
VREFm
58
AGND
59
MICp
60
CIDINp
61
P14/*INT4
62
P13/*INT3
63
ADC2
64
ADC0
J101
J104
C
J103
J102
C
C
R76
1k
(1005)
C77
NC
(1005)
C79
NC
(1005)
C78
NC
(1005)
C
C
C76
NC
SW1
NC
1
2
R81
3.3k
(1005)
Q9
1
3
2
K0.1u
C56
C54
K0.022u
(1005)
C
+1.8V
D12
1
2
15
R72
(1005)
Q8
VDD1
+2.5V
C
C
C
C
C
C
C
C
+2.5V
C
IC6
I/O
1
O/I
2
VSS
3
VDD
5
CONT
4
C63
D6p
X1
1
2
3
C62
J27p
(1005)
C
VDD2
10u
C64
C
C
R63
2.2k
(1005)
+2.5V
C
C
+2.5V
Q14
2
3
1
C50
(1005)
K0.01u
C
R61
1k
(1005)
R60
22k
(1005)
C
+3.3V
R58
6.8k
(1005)
C
NC
IC4
I/O
1
O/I
2
VSS
3
VDD
5
CONT
4
C
C47
NC
R54
NC
(1005)
R52
NC
(1005)
R51
NC
R48
NC
(3216)
C46
NC
C
C44
NC
(1005)
D11
NC
12
Q6
NC
1
3
2
C45
NC
C
C
R49
NC
(1005)
Q7
NC
2
3
1
R53
NC
C
K0.1u
C51
(1005)
C60
K0.1u
(1005)
C61
K0.1u
(1005)
C73
K0.1u
(1005)
TP16
TP15
C
C74
K0.1u
(1005)
C75
K0.1u
(1005)
C59
K0.1u
(1005)
C67
K0.1u
(1005)
IC3
NC
1
CD
2
+VREF
3
+VIN
4
-VIN
5
VOUT1
6
V+
7
GND
8
VOUT2
IC2
NC
1
Vout
2
NC
3
GND
4
Cn
5
Cont
6
Sub
7
Vin
C
C
C
C
+4.0V VDD4
C
D10
12
C
C
C
330u
C36
C
VDD3
+3.3V
120
R38
(1005)
200
R39
(1005)
C
IC1
4
Fin
1
ADJ/GND
3
Input
2
Output
+8.0V
C
C
C55
K0.1u
(1005)
DCM
SP+
SP+
SP-
SP-
1k
R79
(1005)
1k
R80
(1005)
(1005)
R45
NC
SP+
NC
(1005)
R47
NC
(1005)
R46
SP-
NC
R50
(1005)
L2T L1T L1R
22
R55
(6332)
22
R56
(6332)
CN2
2
1
C
C
C
NC
C30
C
NC
(1005)
C69
C
(1005)
R44
NC
R43
NC
C
C
CN1
1
2
3
4
2
3
4
5
6
10u
C71
K1u
C68
(1005)
2.2k
R62
(1005)
100k
R34
12
R21
(4532)
K1u
(1005)
C65
R37
NC
D8
NC
12
D17
NC
12
2.2k
R59
K1u
C70
100k
R32
SA2
NC
J220p
C52
J220p
C53
D1
NC
1
2
CN4
NC
1
2
2
27
R22
(4532)
3.3M
R73
(1005)
0
R65
NC
R66
NC
R68
0
R69
0
R70
C2
NC
18
R67
K220n
C72
C12
NC
100
R75
TP23
3.9k
R57
(1005)
R74
NC
(1005)
TP10
TP9
TP_RLY1
L1T/TP_RLY2
L2T/TP_RLY3
L1R/TP_RLY4
TP_RLY5
L1T/TP_RLY2
L2T/TP_RLY3
L1R/TP_RLY4
TP_RLY5
D4
12
10k
R77
(1005)
10k
R78
(1005)
+2.5V
C
C8
10p
C7
10p
C
C
C
C
10p
C37
(1608)
10p
C49
10p
C48
3.3k
(1005)
R71
1k
R35
C
56
R29
3.3k
R117
(1005)
1k
R33
(1005)
C57
NC
18
R116
(1005)
IC5
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
R3
180k
C141
56n
(1005)
1u
(2125)
C15
(2125)
NC
C16
(2125)
K2.2u
C17
1u
(2125)
C22
(2125)
K2.2u
C31
(1005)
NC
C138
(1005)
NC
C139
10p
(1005)
C144
10p
(1005)
C145
C
10p
(1005)
C146
C
10p
(1005)
C147
C
(1005)
NC
C58
10p
(1005)
C149
10p
(1005)
C135
10p
(1005)
C136
10p
(1005)
C137
0.1u
C140
NC
C33
NC
C34
NC
C35
NC
C38
NC
C39
NC
C40
NC
C41
NC
C42
(2125)
NC
C43
(1005)
NC
NC
R40
NC
R41
NC
R42
10p
C148
R13
680
2.2k
R17
470
R30
2.2k
R20
R12
10k
10p
C19
R36
150k
(1005)
NC
C134
(1005)
NC
C143
10p
(1005)
C151
C
(1005)
NC
C66
C
10p
(1005)
C150
(1005)
NC
R64
100u
C32
0
L9
47n
C25
RSSI
LE
SIO
TDO
RDI
SK
RDY
RESET
KEY0
ROW2
KEY1
SPIDI
SPIDO
SPICLK
TAM_CSn
ROW1
ROW0
ROW0
TAM_RSTn
TAMIC_CSn
NSA/CLIP
RFCLK
RFCLK
Charge +
Charge -
DC_IN
GND
JTAG
RX
TX
for NL
forJT
for TG7100/8100
for TG7120/8120
for TG7100/8100
for TG7100
except TG7100
for TG7120/8120
except TG7120/8120
NC: No Components
BBIC
EEPROM
(1)
(2)
(3)
Charge Current
Beep Bell signal
RX_AF
1.8V
2.5V
3.3V
TX_AF
Loop Current
25mV p-p
0V
0.7V
Caller ID,
Bell Signal
Bell Signal
Bell signal
TX DATA
RX DATA
71
KX-TG7125RUS/KX-TG7125RUT/KX-TGA711RUS/KX-TGA711RUT
C
10u
C27
C
C29
NC
C
+3.3V
C101
NC
C
C
2.2k
R102
470
R103
(2125)
C
Q10
1
3
2
C103
NC
C
C
C104
NC
C105
NC
(3216)
IC10
1
GND1
2
ANT2
3
VCCPA
4
GND2
5
GND3
6
VCC_OC
7
GND4
8
RSSI
9
SYRI
10
GND5
11
GND6
12
SYEN
13
SYDA
14
SYCL
15
GND7
16
RX_DATA
17
GND8
18
TXDA
19
GND9
20
*RESET
21
ANT1
22
GND10
23
GND11
24
GND12
25
GND13
26
GND14
27
GND15
28
GND16
29
GND17
30
GND18
31
A_1
32
GND19
C108
NC
(3216)
C
R104
(1005)
NC
C115
NC
(1005)
C
C116
(1005)
NC
C
(1005)
NC
C109
NC
(1005)
C111
NC
(1005)
C113
NC
(1005)
C114
NC
(1005)
C132
(1005)
NC
R105
NC
(1005)
J22p
C112
(1005)
CLK
C
C
C
C
C
C
C
C130
(1005)
NC
C
C131
(1005)
NC
C
C128
NC
(1005)
C
C
R110
NC
(1005)
R111
100
(1005)
C129
(1005)
NC
C
R112
1k
(1005)
K1000p
C127
(1005)
J150p
C126
(1005)
C
C
C
C
C107
NC
C106
NC
C
C
+2.5V
C
270
R106
D10p
C118
C
D10p
C120
C122
NC
L7
33n
DA1
1
2
3
R107
NC
C121
NC
(1005)
L5
NC
ANT_2
ANT_1
C
R109
180
R108
NC
C125
D10p
C
C
5
D14
1
2
D13
1
2
Q12
2
3
1
10k
R98
(1005)
10k
R99
(1005)
C
Q13
2
3
1
C
K1000p
C97
(1005)
C
+2.5V +1.8V
C
C
C
C
C
+2.5V
C
C
C
SP+
SP-
C
C
C
C
+3.3V
C
C
+2.5V
330
R91
NC
C87
C
10k
R89
(1005)
C
+3.3V
C86
(1005)
K0.01u
+3.3V
C
Q11
2
3
1
22k
R86
(1005)
C
2.2k
(1005)
R85
C
1k
R83
(1005)
2.7k
R84
(1005)
IC9
FLASH MEMORY
1
RDY/*BUSY
2
*RESET
3
*WP
4
NC1
5
NC2
6
VCC
7
GND
8
NC3
9
NC4
10
NC5
11
*CS
12
SCK
13
SI
14
SO
15
NC6
16
NC7
17
NC8
18
NC9
19
NC10
20
NC11
21
NC12
22
NC13
23
NC14
24
NC15
25
NC16
26
NC17
27
NC18
28
NC19
NC
(1005)
R88
C
C
C
C
C
IC8
1
GPIO4/PCM_DI
2
GPIO5/PCM_DO
9
SPI_DI
3
GPIO6/PCM_CLK
4
GPIO7/PCM_FSC
5
VDD1
6
VDDIO1
7
CLK
8
*PF
10
SPI_DO
11
SPI_CLK
12
SPI_EN
13
AVD1
14
GPO9/PAOUTp
15
VDDPA
16
GPO8/PAOUTm
17
GPIO0
18
GPIO1
19
VDD2
20
VDDIO2
21
GPIO2
22
GPIO3
23
*RST
24
AVD2
25
*LSR
26
LSRp
27
MICh
28
*MIC
29
VREFm
30
VBUF
31
MICp
32
VREFp
33
Fin
C
K0.1u
C84
K0.1u
C83
K0.1u
C80
(1005)
K0.1u
(1005)
C133
K0.1u
(1005)
C85
K0.1u
(1005)
C82
100k
R82
1k
R87
1k
(1005)
R92
NC
(1005)
C90
K0.1u
(1005)
C89
NC
(1005)
C91
NC
(1005)
C88
R90
(1005)
NC
R113
NC
(1005)
+3.3V
0
(1005)
R114
NC
(1005)
R115
10k
R100
ANT
C
A_1
A_2
CN5-3
GND
CN5-1
ROW0
CN5-2
ROW1
CN6-1
ROW2
CN6-2
KEY0
CN6-3
KEY1
CN6-4
LED1
CN6-5
VDD
CN5-4
LED2
CN5-5
GND
1M
R118
(1005)
C
C
0
R93
(1005)
0
R94
(1005)
0
R95
(1005)
0
R96
(1005)
0
R97
(1005)
1u
(2125)
C102
100n
(2125)
C28
K0.1u
(1005)
C142
K0.1u
(1005)
C81
6.8n
L3
6.8n
L4
3p
C117
10p
(1005)
C119
K1000p
(1005)
C110
820
R31
270
R120
330
R119
10
R101
1p
C124
CN5
CN6
2.2n
L10
2.2n
L11
L6
0.5p
10p
(1005)
C92
10p
(1005)
C93
10p
(1005)
C94
10p
(1005)
C95
10p
(1005)
C96
SK
SIO
TDO
RESET
RDI
RSSI
LE
TAMIC_CSn
SPICLK
SPIDI
SPIDO
ANSWER_ON
MESSAGE
RFCLK
SPIDI
SPIDO
SPICLK
TAM_RSTn
RDY
MESSAGE
ANSWER_ON
NSA/CLIP
ROW0
RFCLK
TAM_CSn
TAM_RSTn
KEY1
KEY0
ROW2
ROW1
ROW1
for TG7120/8120
Flat-cable
C26
KX-
TG7125RU
SCHEMATIC DIAGRAM (Base Unit_Main)
NC: No Components
RF Module
(1)
(2)
(3)
0V
2.5V
10.368MHz
RX DATA
TX DATA
3.3V
72
KX-TG7125RUS/KX-TG7125RUT/KX-TGA711RUS/KX-TGA711RUT
12.3. Schematic Diagram (Base Unit_Operation)
LED2
ANS_ON
1
2
SKIP
VOL_UP
REPEAT
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
VOL_DOWN
PLAY
STOP
ERASE
LOCATOR
GND
VDD
LED2T
ANS_ON
LED1
PLAY
1
2
CN10-1
CN10-2
CN11-1
CN11-2
CN11-3
CN11-4
CN11-5
CN10-4
CN10-3
CN10-5
KX-
TG7125
SCHEMATIC DIAGRAM (Base Unit_Operation)
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