Panasonic KX-TCD225UA / KX-TCA122UA / KX-TCA121UA Service Manual ▷ View online
(5)
(3)
(4)
(2)
(1)
(7)
(8)
(9)
(9)
(10)
(6)
L6
0
L7
0
A201
C60
K4.7
D10P
C54
(1005)
C63
K4.7
C2P
C55
(1005)
C50
D10P
(1005)
C49
C2P
(1005)
R59
0
(1005)
C47
C2P
(1005)
D10P
C51
(1005)
C46
D10P
(1005)
R54
0
(1005)
C66
C2P
CN6
RFmodule
GND
ANT2
3
4
4
2
1
VCCPA
GND
GND
6
5
VCC_OC
GND
8
7
RSSI
9
SYRI
10
GND
11
GND
12
SYEN
13
SYDA
14
SYCL
15
GND
16
RX_DATA
17
GND
18
TXDA
19
GND
20
RESET
21
ANT1
22
GND
23
GND
24
GND
25
GND
26
GND
27
GND
28
GND
29
GND
30
GND
31
A_1
32
GND
C48
D10P
(1005)
J22P
C62
(1005)
CLK
+2.5V
D10P
C44
(1005)
J150P
C53
(1005)
BATTERY
REV_TEST2
-
REV_TEST1
+
D5
4.7M
D4
4.7M
+3.3V
IC2
NC
1
CD
2
FC2
3
FC1
4
VIN
5
VO1
6
VCC
7
GND
8
VO2
SP_TEST2
SP_TEST1
TP22
MIC
R37
0
R38
0
C12
K1.0
TP23
+3.3V
NC
C67
(1005)
NC
C76
C61
NC
C64
NC
(2125)
C65
NC
C59
NC
(2125)
R62
NC
(1005)
R55
NC
(1005)
NC
C83
(1005)
R75
1K
(1005)
K1000P
C84
(1005)
ANT
D10P
C70
D10P
C69
R74
NC
C109
D10P
(1005)
D10P
C78
(2125)
D10P
C79
(2125)
J10P
C95
(2125)
C90
NC
(1005)
R85
33
(1005)
R25
330
(1005)
R26
330
(1005)
C10
K0.1
R86
33
2.2K
R29
C103
D10P
C87
D10P
C17
D10P
C123
D10P
L9
33nH
C13
NC
NC
D8
NC
D10
C14
NC
C15
NC
C16
NC
C38
NC
C75
NC
C77
NC
C80
NC
C81
NC
C86
NC
C92
NC
R34
NC
R35
NC
R36
NC
R80
NC
R67
NC
R66
NC
K1000P
C45
(1005)
RSSI
SK
SIO
LE
TDO
RDI
RFCLK
CD_AMP
RESET
-
+
SPEAKER
KX-TCA122/121 SCHEMATIC DIAGRAM (HANDSET)
NC : No Components
2.5V
0V
10.368MHz
TX DATA
RX DATA
TX-AF
TX-AF
1.0V DC supply to MIC
SP-phone RX Signal
Beep
Beep
RX_AF
(Handset)
(Handset)
109
KX-TCD225UA / KX-TCA122UA / KX-TCA121UA
41 SCHEMATIC DIAGRAM (CHARGER UNIT)
J1
1
2
DC_PLUG
TP2
Charge_minus
TP1
Charge_plus
TP3
TP4
D1
NC
R1
NC
NC
R2
D11
22
R12
R11
22
SCHEMATIC DIAGRAM (CHARGER UNIT)
NC : No Components
110
KX-TCD225UA / KX-TCA122UA / KX-TCA121UA
42 CIRCUIT BOARD (BASE UNIT)
42.1. Component View
Q1
R4
DA1
D3
C4
C114
C53
R67
C74
C101
C189
C19
C206
C109
R44
R43
R105
C170
R39
R24
R22
R32
R37
R64
R85
R38
C27
C203
C32
C38
C25
C17
C7
C168
C28
C167
C207
C213
C215
C11
C173
R50
C102
C205
C187
R16
R68
J11
J10
R23
R25
C190
C184
R106
R69
C12
C3
C2
C13
C15
C14
C49
C151
C147
R5
R3
L7
L6
J3
J1
J5
J2
J7
J9
L9
C24
C46
L4
C142
R120
R118
R119
C144
C145
C146
C150
C149
C180
R130
R40
C45
C65
R133
C158
C140
C141
R123
R122
C157
R122
C157
C153
R125
C165
R124
R125
C165
R124
1
1
1
4
8
5
32
16
17
26
17
10
R121
C143
C139
C133
C134
C135
R115 R116
C136
C164
R117
R9
R8
R8
C8
C119
C108
C191
C130
C35
C40
C29
C199
C200
C75
R70
R107
R47
R42
R58
C76
C30
R72
R71
R48
R59
R52
TP9
TP10
R54
R27
C18
R26
C192
C36
C21
C52
C193
C198
C47
R49
R144
R28
R140
R139
R138
C171
C172
C182
R142
R141
R141
R143
C174
C41
R129
C214
C26
5
4
8
1
C50
C22
C194
R56
R57
R57
R78
R79
R79
R17
C1
C212
C166
R126
R127
R126
R127
R132
R135
R136
R137
R136
R137
R87
R86
R86
C123
R55
C121
C122
C48
C201
R88
C204
R84
TP23
C156
C137
C160
C159
C154
C155
C162
C163
C161
C181
C195
R134
C169
C208
C209
C197
C196
C183
C39
C42
C43
16
1
33
48
32
49
64
17
C6
C44
C34
C37
C107
C138
L3
L8
L10
PbF
X1
IC7
IC8
IC3
IC5
IC1
IC2
SA1
SA2
RLY1
D4
D16
D2
D10
D6
D18
D13
D11
D15
R81
D5
D14
D12
D1
R80
D17
BLACK
RED
R45
R46
CN14
C80
C5
SW1
Q12
Q3
Q4
E
Q5
Q8
E
Q14
Q16
Q15
Q6
Q2
ANT_2
ANT_1
KX-TCD225 CIRCUIT BOARD (Base Unit_Main (Component View))
A
PQUP11276Z
KX
-T
CD2
25UA
/
KX
-T
C
C
A
122U
A
/
/
KX
-T
CA1
21UA
111
42.2. Flow Solder Side View
BUZ
CLK
VDD2
TP16
TP15
A_1
A_2
ANT
VDD1
VDD3
J101
TP19
TP20
RED
BLACK
J104 J103 J102
Copper plate
LINE_DC
L2T
L1T
CN1
L2R
L1R
DCP
DCM
PbF
KX-TCD225 CIRCUIT BOARD (BASE UNIT) Flow Solder Side View
KX
-T
CD2
25UA
/
KX
-T
C
C
A
122U
A
/
/
KX
-T
CA1
21UA
112
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