Panasonic KX-TG8125RU / KX-TGA810RU / KX-TGA810RUS / KX-TGA810RUT Service Manual ▷ View online
77
KX-TG8125RU/KX-TGA810RU
Sp-phone RX
Beep
Beep
1.5V DC supply to Mic
TX-AF
RX-AF
(Handset)
(Handset)
TX DATA
RX DATA
10.368MHz
2.5V
0V
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
R53
NC
1k
R52
J150p
C53
K1000p
C52
R51 68
BATTERY
+2.5V
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
10k
R41
10k
R40
100k
R42
Q10
2
3
1
Q11
2
3
1
+2.5V
J100p
C37
REV_TEST1
REV_TEST2
SP_TEST1
SP_TEST2
ANT1
TP22
TP23
CLK
C72
NC
CN4
1
4
2
3
5
Z10u
C86
K0.1u
C11
MIC
1
2
C59
NC
C62
NC
D4
A K
D5
A K
K4.7u
C60
K4.7u
C61
33
R21
R34
NC
2.2k
R25
10k
R44
680k
R43
R35
NC
33
R22
D10p
C50
NC
C14
NC
C51
NC
C54
NC
C55
NC
C56
NC
C70
NC
C71
NC
C81
D10p
C85
470
R23
3.3k
R24
10p
C98
1k
R31
470p
C82
D10p
C83
100k
R32
NC
C80
ANT
1k
L8
1k
L12
L10
0
NC
C100
10p
C101
10p
C102
330p
C99
100k
R33
1.5p
C66
39p
C57
1n
C58
1n
C112
1n
C108
330p
C110
NC
C109
NC
C111
1n
C113
1u
C12
33
R94
L9
100
R93
NC
C95
RESET
SIO
SK
LE
RSSI
TD0
RDI
HEADSET_DET
RFCLK
10p
C115
KX-TGA810 SCHEMATIC DIAGRAM (Handset)
NC: No Components
IC3
EEPROM
IC4
(1)
(2)
(3)
(4)
(5)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(12)
78
KX-TG8125RU/KX-TGA810RU
12.5. Schematic Diagram (Charger Unit)
TP3
G
J1
2
1
TP4
TP2
TP1
10
R1
10
R3
12
R2
12
R4
SCHEMATIC DIAGRAM (Charger Unit)
79
KX-
T
G81
25
RU/KX
-TGA8
10
R
U
13
Printed Circuit Board
Printed Circuit Board
13.1.
C
ircuit Board (Base Unit_Main)
13.1.1.
Co
mpo
mpo
n
ent V
iew
C45
C46
C47
C35
1
4
7
5
C34
C37
C33
C116
C131
C114
C115 C132
C130
C113
C111
C101
C102
C118
C122
1
10
11
16
17
26
27
32
DA1
C125
TP23
C152
C85
Q11
C87
C95
SW1
C2
C3
L1
L2
Q3
E
D3
C154
C84
C91
1
1
8
9
16
17
24
25
32
14
28
15
A
C41
C135
1
1
4
8
5
C149
C76
17
32 33
48
49
16
1 64
C74
C78
C75
C79
C144
C138
D17
C73
C72
C77
C65
C63
C61
C62
C60
C59
Q14
Q1
D5
D2
J1
J2
D9
C1
C134
C140
C12
Q4
C29
C28
J3
~
~
J4
C19
C17
C71
R22
R21
Q5
Q8
E
C58
C141
C21
C23
C24
C18
C5
C136
C137
C50
C124
ANT_2
ANT_1
C117
C119
C121
L4
L7
L6
L3
L9
L5
C129
C30
C31
C150
C40
C39
C38
C43
C139
C8
C80
C90
C89
C86
C88
C82
C70
C69
C20
C53
C6
C16
C13
C147
C93
C92
C94
C96
C97
C26
C27
C11
C15
C4
C10
C9
SA1
SA2
C52
C56
C25
C7
C55
C14
C54
C66
C67
C57
C68
C83
C142
C151
C148
C143
C145
D10
C146
C42
C81
C133
C51
C48
C44
D11
C120
C49
C104
C103
C107
C110
C109
C128
C127
C126
C112
C108
C105
R105
R104
R103
R110
R109
R58
R108
R107
R39
R38
R1
R117
R71
R33
R64
D6
R19
R8
R3
R4
TP10
R32
R116
R69
R70
R42
R41
R118
R88
R90
R91
R72
R24
R25
R13
R31
R74
R29
C22
R93
R94
R96
R97
R113
CN6
1
1
CN5
R101
R14
R15
D7
D8
D15
D16
R11
D4
R17
R10
R6
R34
R36
R35
D12
Q9
R43
R44
R77
R78
R73
R106
C106
R51
R112
Q7
R49
R37
R121
R40
R83
R115
R114
R84
R85
R82
IC8
IC6
IC9
IC3
IC7
IC10
IC1
IC2
IC5
IC4
R86
R87
R68
R26
R98
R119
D13
D14
Q12
Q13
R120
R95
R99
R100
R23
R67
R9
R18
R16
R12
R2
Q2
R30
R20
R27
R28
R7
R65
R66
CN1
CN2
L1T/TP_RLY2
L1R/TP_RLY4
L2T/TP_RLY3
TP9
TP_RLY1
TP_RLY5
R5
R46
R47
R45
R61
R59
R60
R62
5
8
4
1
R55
D1
C36
C32
X1
C64
CN4
R56
2
R92
R81
R76
R89
R75
R63
R53
R50
Q6
R48
R54
R52
R80
R79
R111
R57
R102
Q10
KX-TG8125 CIRCUIT BOARD
(Base Unit
(Component
View)
)
PbF
PQUP11410Z
8120
8100
7120
KX-TG7100
IC10
(RF Module)
(RF Module)
IC7
(BBIC)
(BBIC)
IC8
pin16
pin16
IC8
pin14
pin14
80
KX
-T
-T
G
8
12
5R
U/K
U/K
X
-T
GA
81
81
0RU
13.1.2.
F
low Sold
er Side V
iew
PbF
PQUP11410Z
KX-TG7100
7120
8100
8120
A
VDD1
VDD3
A_1
CLK
RX
TX
GND
VDD4
BUZ
SP
SP+
SP-
ANT
A_2
VDD2
LINE_DC
L1T
L1R
L2R
L2T
4
3
2
DCM
2
1
DC_IN
RED
BLA
CK
CHARGE
KX-TG8125 CIRCUIT BOARD
(Base Unit
(Flow Solder Side
View)
)
VDD1
VDD2
VDD3
CLK
(10.368MHz)
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