Read Panasonic KX-TCA175RU Service Manual online
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KX-TCA175RU
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(1)
KX-TCA175
RU CPU SCHEMATIC DIAGRAM (2/2)
7
8
11
10
9
LDO1_CTRL
LDO1_SNS
MIC_BIAS
RXDA
SYEN
SYDA
SYCL
RXDSG
RSSI
PSEL
PAON
TXDA
RFCONT
SYRI
C34
C33
6.3V KB 22u
6.3V KB 22u
Q10
E
C
B
4
3
5
Q17
1
6
2
Q14
Q11
1
2
3
4
5
6
Q13
D1.8V
D3.0V
5.0V
C28
BATT
C22
C26
10V 1u
1000p
L4
C29
Z1u
C27
Z0.1
10V 4.7u
D1.8V
C24
AG
C21 0.068u
C23
0.068u
10p
C30
NC
D15
C25
BATT
D16
D3.0V
C35
K0.1u
C31
NC
AG
AG
C36
C37
10p
6.3V KB 22u
C38
K0.1u
C44
C49
C40
C48
C46
10p
C41
Z0.1
Z 2.2u
C42
10p
C53
10p
10p
C67
BATT
C60
C56
C62
NC
C54
C65
10p
CN1
HEADSET_JACK
1
2
3
4
5
RF_GND
AG
D3.0V
C69
10p
AG
CN9
1
2
C58
C57
10p
10p
AG
AG
AG
C39
10p
AG
C68
10p
BATT
C66
NC
C51
NC
C63
NC
C50
NC
C45
NC
C47
NC
C52
NC
C55
NC
C59
NC
C43
NC
C64
10p
D7
D5
D10
D6
D3
D8
D4
D9
D3.0V
PSEL
SYDA
RXDA
RXDSG
TXDA
SYEN
PAON
SYRI
RSSI
SYCL
BATT
BATT
RFCONT
C109
C110
ESD
C61
C122
10p
D17
D18
D19
D20
D21
D22
D23
D24
D3.0V
D3.0V
CK18
CK17
SYRI
CK11
CK12
CK14
CK13
CK15
CK16
CK10
IC6
1 CD
2 +VREF
3 +VIN
4 -VIN
2 +VREF
3 +VIN
4 -VIN
5
VOUT1
6
V+
7
GND
8
VOUT2
IC605
1 CD
2 +VREF
3 +VIN
4 -VIN
2 +VREF
3 +VIN
4 -VIN
5
VOUT1
6
V+
7
GND
8
VOUT2
IC4
1
D1
2
D2
3
G
4
S
5
D3
6
D4
C72
Z0.1
C70
2200pF
CN10
1
2
CN8
1
2
R29
NC
Q12
D25
C73
10p
10p
Z0.1
10p
C74
AG
C75
1000p
1000p
AG
R36
R78
R75
10k
330
R40
R57
100k
R62
10k
R74
R47
R68
NC
NC
R39
100k
100k
R79
R63
1
1
R48
R58
J47p
10p
K470p
68k
R80
R89
R34
1M
R49
R81
R30
R59
R72
0
R43
R50
R38
470k
R32
R31
R82
R70
R64
R51
R41
27k
R35
6.3V KB 22u
270k
R66
NC
R33
F18k
R83
R69
33
33
R54
NC
R53
10k
R45
R61
NC
R55
10k
R76
R65
R37
68k
68k
10k
R28
6.3v100
6.3v100
F43k
5.6k
R67
0
R42
0
R44
R77
R52
R60
22k
47k
47k
82k
56k
R56
100
2.2K
120
R71
NC
R46
120
120
120
120
120
120
120
120
120
120
120
120
EN:Low Output OFF
High Output ON
High Output ON
+
MIC (1JM)
-
Rear Speaker
Receiver
Tentative
Size is same
D
F
E
C
B
A
H
G
120
120
120
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