Panasonic KX-TCD460UA / KX-A146UA-1 / KX-A146UA Service Manual ▷ View online
TX-AF
RX-AF
SP-Phone
RX-AF
RX-AF
TX - DATA
RX - DATA
Frequency 10.368MHz
C8
D10P
R22
0
C7
K0.1
TP1
R18 33
L3
4.7uH
R23
2.2
R1
2.2K
D3
C54
D10P
TP2
A201
R7
470
MCLK
C5
6.3V4.7
C66
D10P
MIC
C4
K0.1
C57
J33P
ANT
C6
D10P
C26
K0.1
IC3
5 RSSI
6 VCC_OC
7 GND
8 SYCL
9 SYDA
6 VCC_OC
7 GND
8 SYCL
9 SYDA
10 SYEN
11 GND
12
RXDSG
13
SYRI
14
GND
15
GND
16
GND
17
GND
18
GND
19
GND
20
RXDA
21
GND
22
GND
23
GND
24
PSEL
25
PAON
26
GND
27
VCC_PA
28
GND
29
GND
30
GND
31
GND
32
GND
33
RF1
34
GND
GND
1
GND
2
GND
3
TXDA
4
R5
470
R8
470
TP11
R17
56
R20
56
C31
D10P
C12
D10P
TP102
IC101
1
CD
2
FC2
3
FC1
4
VIN
5
VO1
6
VCC
7
GND
8
VO2
56K
R107
K0.1
C109
D101
68K
R108
TP101
K0.1
C105
10K
R109
D10P
C110
D10P
C111
D10P
C108
D10P
C103
K0.1
C107
K2200P
C102
K1.0
C106
C65
D10P
C206
K4.7
C209
D10P
C62
K1.0
C64
K1.0
C56
C2P
C55
C2P
L6
2.7nH
C208
D10P
C67
C2P
C116
D10P
C115
D10P
C202
C0.5P
D7
M4.7V
D6
M4.7V
C207
NC
NC
C104
NC
C101
C201
NC
C63
NC
C203
NC
C204
NC
D102
NC
NC
R106
R110
NC
C60
6.3V4.7
-
SPEAKER
+
J101
J12
RECIEVER
RECIEVER
-
+
S10
C24
K0.1
TP16
TP17
'POWER'
(1)
(14)
(10)
(11)
(12)
(13)
(13)
(4)
(3)
(2)
(15)
(16)
(17)
(18)
(18)
(22)
(23)
(19)
~
~
KX-A146UAF/UAS/UAT-1/A146UAF/UAS/UAT SCHEMATIC DIAGRAM (HANDSET)
89
KX-TCD460UA / KX-A146UA-1 / KX-A146UA
40 SCHEMATIC DIAGRAM (CHARGER UNIT)
TP3
R2
27
TP4
D1
2
1
J1
pinL
DC_PLUG
22
Charge_minus
TP1
TP2
R1
Charge_plus
SCHEMATIC DIAGRAM (CHARGER UNIT)
90
KX-TCD460UA / KX-A146UA-1 / KX-A146UA
41 CIRCUIT BOARD (BASE UNIT)
41.1. Component View
Q1
S1
L2
L1
PbF
X1
IC1
IC3
IC2
JMP6
JMP2
JMP4 JMP3
JMP1
C48
C27
C68
C41
C43
R38
R66
R78
R79
L3
C53
C55
C70
C96
C71
DA1
R42
R41
C85
C83
C82
C84
C57
C21
C29
C35
C34
C34
C33
C32
C32
C62
C7
C8
C9
D9
C90
C95
C5
C49
C74
C2
C1
C63
C4
C11
C14
C6
C13
C10
R3
R1
R6
R2
R4
C36
C30
C28
R86
R87
R88
R29
R30
C19
C12
C16
C17
C51
C22
C18
C23
C24
C20
R31
R67
R58
R57
R35
R71
R72
R81
R82
R53
R54
R56
R8
C60
R55
R19
R20
R25
R28
R13
R14
R11
R15
R74
R73
R7
R77
D7
D8
R70
R85
R5
R9
R10
R27
R23
C80
C79
R32
R24
D6
R12
R22
R21
R16
R18
R18
R26
R17
D1
D5
C89
R89
C92
D2
D3
C88
C72
C66
C56
B C E
B C E
Q3
Q7
Q5
Q10
Q2
Q11
Q4
1
Q8
4
5
8
1
11
28
18
ANT
J1
A201
A202
J2
Q9
C81
C87
C5
4
C58
C69
C98
C97
C78
C37
R36
R33
R52
R52
C50
C38
C26
C77
JMP5
JMP8
JMP7
RLY1
R44
R43
C73
R68
C91
C86
C67
C76
Q6
C15
C25
D4
L4
C93
C94
SA1
C40
C3
1
64
48
49
33
32
16
17
17
Bell Ringer
(BBIC: 44)
Bell Power
Supply (4V)
Q8 Collector
(2.65V)
Bell
(BBIC: 27)
Bell
(BBIC: 26)
RF VOLTAGE
(4.0V)
Q9
(5.5V)
Q9
(4.0V)
RESET
(BBIC: 14)
X1
(BBIC: 18
10.368MHz)
KX-TCD460UAF/UAS/UAT CIRCUIT BOARD (BASE UNIT) Component View
KX
-T
CD4
60UA
/
KX
-A1
46UA-
1
/
KX
-A
146U
A
91
41.2. Flow Solder Side View
TP1
TP84
TP97
TP82
TP187
TP91
TP188
TP101
TP89
TP2
1
2
4
6
TP5
TP90
TP50
TP202
TP201
TP45
TP3
TP39
TP40
J101 J103 J104 J102 J105
+2.65V
SDA
SCL
GND
VBACK
CHARGE
PbF
CHARGE
RINGER
RINGER
C99
RF clock
(BBIC: 11 10.368MHz)
Q9 input
(5.5V)
Q9 output
(4V)
KX-TCD460UAF/UAS/UAT CIRCUIT BOARD (BASE UNIT) Flow Solder Side View
KX
-T
CD4
60UA
/
KX
-A1
46UA-
1
/
KX
-A
146U
A
92
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