Panasonic KX-TC1205RUB / KX-TC1205RUW / KX-TC1205RUS / KX-TC1205RUF Service Manual ▷ View online
Ref.
No.
Part No.
Part Name & Description
Remarks
R34
ERJ3GEYJ224
220k
R35
ERJ3GEYJ473
47k
R36
ERJ3GEYJ202
2k
R37
ERJ3GEYJ102
1k
R38
ERJ3GEY0R00
0
R39
ERJ3GEYJ224
220k
R40
ERJ3GEYJ330
33
R41
ERJ3GEYJ683
68k
R42
ERJ3GEYJ223
22k
R43
ERJ3GEYJ104
100k
R44
ERJ3GEYJ393
39k
R45
ERJ3GEYJ104
100k
R46
ERJ3GEYJ434
430k
R47
ERJ3GEYJ222
2.2k
R48
ERJ3GEYJ223
22k
R49
ERJ3GEYJ473
47k
R50
ERJ3GEYJ822
8.2k
R51
ERJ3GEYJ272
2.7k
R52
ERJ3GEYJ681
680
R53
ERJ3GEYJ820
82
R54
ERJ3GEYJ104
100k
R55
ERJ3GEYJ390
39
R56
ERJ3GEYJ222
2.2k
R57
ERJ3GEYJ332
3.3k
R58
ERJ3GEYJ470
47
R59
ERJ3GEYJ222
2.2k
R60
ERJ3GEYJ222
2.2k
R61
ERJ3GEYJ331
330
R62
ERJ3GEYJ222
2.2k
R63
ERJ3GEYJ103
10k
R64
ERJ3GEYJ103
10k
R65
ERJ3GEYJ331
330
R66
ERJ3GEYJ222
2.2k
R67
ERJ3GEYJ222
2.2k
R68
ERJ3GEYJ103
10k
R69
ERJ3GEYJ222
2.2k
R70
ERJ3GEYJ222
2.2k
R72
ERJ3GEYJ105
1M
R74
ERJ3GEYJ104
100k
R75
ERJ3GEYJ104
100k
R76
ERJ3GEYJ104
100k
R77
ERJ3GEYJ103
10k
R78
ERJ3GEYJ104
100k
R79
ERJ3GEYJ105
1M
R81
ERJ3GEYJ105
1M
R82
ERJ3GEY0R00
0
R83
ERJ3GEY0R00
0
R84
ERJ3GEYJ105
1M
R85
ERJ3GEYJ102
1k
R86
ERJ3GEYJ104
100k
R87
ERJ3GEYJ104
100k
R91
ERJ3GEY0R00
0
R93
ERJ3GEYJ103
10k
R94
ERJ3GEYJ334
330k
R95
ERJ3GEYJ393
39k
R96
ERJ3GEY0R00
0
R97
ERJ3GEYJ104
100k
R98
ERJ3GEYJ475
4.7M
R99
ERJ3GEYJ472
4.7k
R101
ERJ3GEY0R00
0
R103
ERJ3GEYJ105
1M
R105
ERJ3GEYJ103
10k
R106
ERJ3GEYJ151
150
R107
ERJ3GEYJ222
2.2k
R108
ERJ3GEYJ102
1k
R109
ERJ3GEYJ102
1k
R110
ERJ3GEYJ102
1k
R111
ERJ3GEYJ102
1k
R112
ERJ3GEYJ102
1k
(CAPACITORS)
C1
ECEA1EK470
47
S
C2
ECUV1H473MDV
0.047
S
C3
ECUV1H390JCV
39p
Ref.
No.
Part No.
Part Name & Description
Remarks
C4
ECUV1H270JCV
27p
C5
ECUV1C104ZFV
0.1
C6
ECUV1H102KBV
0.001
C7
ECUV1C104ZFV
0.1
C8
ECUV1H473MDV
0.047
S
C9
ECUV1H103KBV
0.01
C12
ECEA1HKA2R2
2.2
C13
ECUV1H270JCV
27p
C14
ECUV1H103KBV
0.01
C15
ECEA1CKA100
10
C16
ECUV1C473KBV
0.047
C17
ECUV1H102KBV
0.001
C18
ECEA1HKA2R2
2.2
C21
ECUV1H223KBV
0.022
S
C22
ECUV1H390JCV
39p
C23
ECUV1H102KBV
0.001
C24
ECUV1H220JCV
22p
C26
ECUV1H103KBV
0.01
C27
ECUV1C104KBV
0.1
C28
ECUV1H682KBV
0.0068
C29
ECEA1HKA2R2
2.2
C30
ECUV1C104KBV
0.1
C31
ECUV1H103KBV
0.01
C32
ECUV1C104KBV
0.1
C33
ECUV1C104KBV
0.1
C34
ECUV1H101JCV
100p
C35
ECUV1H681JCV
680p
C36
ECUV1H180JCV
18p
C37
ECEA1HKA010E
1
C38
ECUV1H101JCV
100p
C39
ECUV1H151JCV
150p
C40
ECUV1H103KBV
0.01
S
C41
ECUV1H220JCV
22p
C42
ECEA1EK470
47
S
C43
ECEA1HKA2R2
2.2
C44
ECUV1C105ZFV
1
C45
ECUV1C683KBV
0.068
C47
ECUV1H682KBV
0.0068
C48
ECEA1EK470
47
S
C49
ECUV1H223KBV
0.022
S
C50
ECUV1H103KBV
0.01
S
C51
ECEA1CKA100
10
C52
ECUV1H103KBV
0.01
S
C53
ECUV1H223KBV
0.022
S
C54
ECUV1H100DCV
10p
S
C55
ECUV1H103KBV
0.01
S
C56
ECUV1H010CCV
1p
C57
ECUV1H150JCV
15p
C58
ECUV1H103KBV
0.01
C59
ECUV1H270JCV
27p
C60
ECUV1H270JCV
27p
C61
ECUV1C104ZFV
0.1
C62
ECUV1H560JCV
56p
C63
ECEA1CK101
100
S
C64
ECUV1H103KBV
0.01
S
C65
ECUV1H150JCV
15p
C66
ECUV1H150JCV
15p
C69
ECUV1C104ZFV
0.1
C70
ECUV1H330JCV
33p
C71
ECUV1H330JCV
33p
C72
ECUV1C104ZFV
0.1
C73
ECUV1C104ZFV
0.1
C74
ECUV1H473MDV
0.047
S
C75
ECUV1H103KBV
0.01
C76
ECUV1H471JCV
470p
C77
ECUV1H471JCV
470p
C78
ECUV1H103KBV
0.01
C79
ECUV1H103KBV
0.01
C80
ECUV1H103KBV
0.01
C84
ECUV1C104ZFV
0.1
C85
ECUV1C105ZFV
1
C86
ECUV1C104ZFV
0.1
C88
ECUV1C104ZFV
0.1
57
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
Ref.
No.
Part No.
Part Name & Description
Remarks
R102
ECUV1H333KBV
0.033
S
24.3. ACCESSORIES AND PACKING
MATERIALS
Ref.
No.
Part No.
Part Name & Description
Remarks
A1
PQJA10075Z
TEL CORD
A2
PQLV16CEZ
AC ADAPTOR
A3
PQQX13178Z
INSTRUCTION BOOK
A4
PQQW12509Z
LEAFLET
P1
PQPP10090Z
POLY BAG (for Base Unit)
P2
PQPP10091Z
POLY BAG (for Handset)
P3
PQPP10092Z
POLY BAG
P4
PQPK13522Z
GIFT BOX
58
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
25 FOR SCHEMATIC DIAGRAM
25.1. Base Unit (SCHEMATIC DIAGRAM (Base Unit))
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.
2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
Important Safety Notice:
Components identified by
Components identified by
mark have special characteristics important for safety. When replacing
any of these components, use only the manufacturer´s specified parts.
25.2. Handset (SCHEMATIC DIAGRAM (Handset))
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.
2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
59
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
26 SCHEMATIC DIAGRAM (Base Unit)
26.1. Base Unit
RX
TX
+5V
+5V
0V
0V
+12V
0V
+12V
0V
0V
+12V
+12V
+5V
13V to 5V
While charging
While charging
1Vp-p
8MHz
KX-TC1205RUB/W/S/F SCHEMATIC DIAGRAM (Base Unit)
ADAPTOR
120V AC
12VDC
200mA
120V AC
12VDC
200mA
CHG D
TX D
TX D
VCC
HOOK
OSCO
OSCI
OSCI
CHG LD
DTMF1
DTMF2
DTMF3
DTMF4
PAGE
RXDATA
CLOCK
DATA
POW F
ZD7.5
TEST
DTMF0
P MUTE
RESET
COUT1
AGC CIRCUIT
AGC
CIRCUIT
CIRCUIT
RING
IMPEDENCE
IMPEDENCE
PULSE
DAIL
DAIL
LIMITED
CURRENT
RING SELECT
STROBE
CNDET
VTX
JK1
CHARGE--
TP
TP
TP
TP
TP
TP
TP
CHARGE+
TP
TP
TP
TP
R189
22K
R0603
D9
D\362
D10
D\362
D\362
R179
NA
R0603
NA
R0603
R178
NA
R10
NA
R10
R11
1K
R0603
+
C102
220UF/25V
EC10/5
220UF/25V
EC10/5
R153
1M
R0603
1M
R0603
R166
47
R0603
R186
4K7
R0603
C104
104
C0603
104
C0603
C120
NA
C0603
NA
C0603
ZD9
NA
NA
ZD7.5
ZD10
15V/0.5W
ZD7.5
+
C66
100uF/10V
EC10/5
C64
104
104
C0603
R88
10K
R0603
R64
10K 1/4W
R0603
10K 1/4W
R0603
R57
220K
R0603
220K
R0603
X2
7.952
XTAL\10
XTAL\10
L11
JUMP
4MM
JUMP
4MM
C67
22P
C0603
22P
C0603
C63
103
C0603
103
C0603
C76
680P 500V
CC6\5
CC6\5
FS1
JUMP 5MM
FUSE\12.5
JUMP 5MM
FUSE\12.5
L4
12uH
L10
12uH
L10
LED1
19-21VGC/
TR8 GREEN
TR8 GREEN
CHARGE
LED
LED
RY1
500 OHM
RY1
T7
LB-0627
6
1
2
4
3
5
JK1
LINE JACK 4C
LINE\JK1
1
2
3
4
2
3
4
D1
D\362
D\362
R145
1K
R0603
1K
R0603
ZD8
ZD7.5
ZD7.5
C96
103
R0603
103
R0603
C77
150P
C0603
150P
C0603
JK2
JACK DC
JACK DC
Q6
SOT-23
SOT-23
+
-
IC3D
SIP14
12
13
14
4
11
ZD4
NA
NA
R89
10K
R0603
R0603
L3
JUMP
4MM
4MM
Q20
SOT-23
ZNR1
270V
270V
ZNR\7K
R61
220K
220K
R0603
R59
100K
R0603
100K
R0603
R84
10K
R0603
R0603
R83
10K
R0603
R0603
C75
223
C0603
223
C0603
R105
4.7K
R0603
4.7K
R0603
R86
47K
R0603
47K
R0603
R58
510
R0603
510
R0603
R120
0
R0603
R144
20M 1/4W
R10
20M 1/4W
R10
C80
680P 500V
CC6\5
680P 500V
CC6\5
L6
12uH
L10
12uH
L10
C65
22P
C0603
R74
0
R0603
0
R0603
C71
104
C0603
104
C0603
R107
110 2W
R15
110 2W
R15
R99
82K
R0603
82K
R0603
R92
10K
R0603
10K
R0603
+
C68
0.47uF/50V
EC5\5
0.47uF/50V
EC5\5
Q9
SOT-23
SOT-23
C126
224
C0603
224
C0603
Q7
SOT-23
Q8
SOT-23
R98
12K
12K
R0603
L9
JUMPER
L10
JUMPER
L10
L8
JUMPER
L10
JUMPER
L10
L5
12uH
L10
12uH
L10
L7
12uH
L10
12uH
L10
+
C94
100UF\10V
EC8\5
100UF\10V
EC8\5
+
C95
470UF\25V
EC10\5
R118
150 1/2W
R12.5
R100
100K
R0603
100K
R0603
C121
103
103
C0603
R106
22 1/4W
R10
22 1/4W
R10
Q18
TO-92\EBC
R142
22 1/4W
R10
22 1/4W
R10
C99
103
C0603
103
C0603
Q21
SOT-23
+
C78
470UF/10V
EC10/5
R109
330K
R0603
330K
R0603
R114
22K
22K
R0603
R108
4K7
4K7
R0603
R167
10K
R0603
10K
R0603
R111
470
470
R0603
ZD5
4V7
D\362
4V7
D\362
ZD3
4V7
D\362
4V7
D\362
C83
NA
C0603
NA
C0603
R87 1K
R0603
R0603
R115
56K
R0603
R0603
R133
82
R0603
82
R0603
C89
NA
C0603
NA
C0603
Q11
SOT-23
SOT-23
C85
683
683
C0603
C90
224
C0603
224
C0603
R126
620
R0603
620
R0603
R122
1K3
R0603
R0603
+
C127
47UF
47UF
R141
5K1
R0603
R0603
C92
104
C0603
C0603
R123
15K
R0603
R129
6K8
R0603
6K8
R0603
D7
2700V
R149
1K8
R0603
1K8
R0603
R148
10K
R0603
10K
R0603
R143
510K
R0603
510K
R0603
R119
82K
82K
R0603
Q19
TO-92\EBC
C101
562
C0603
R150
510K
R0603
R0603
+
C97
4U7/50V
EC5\5
EC5\5
R171
1K
R0603
D2
D10B
D10B
R146
15K
R0603
15K
R0603
R60
22K
R0603
22K
R0603
+
C98
220uF
EC5\5
220uF
EC5\5
R91
150K
R0603
R128
NA
R10
NA
R10
D3
D10B
D10B
D4
D10B
D10B
R127
NA
R10
NA
R10
Q16
SOT-23
SOT-23
R157
NA
R0603
R0603
R139
10M
R0603
10M
R0603
R117
390K
390K
R0603
R187
27K
R0603
Q13
NA
SOT-23
NA
SOT-23
C88
105
C0603
105
C0603
R134
0
R0603
R188
10K
R0603
10K
R0603
R172
22K L10
Q12
TO-92\EBC
R121
NA
R0603
R0603
C84
NA
C0603
C0603
R138
4K7
R0603
R0603
R130
27 R0603
27 R0603
R10
R124
27 R0603
R10
Q15
TO-92\EBC
TO-92\EBC
R161
0
R0805
0
R0805
R160
0
R0805
0
R0805
R162
NA
R0805
NA
R0805
R163
NA
R0805
NA
R0805
R159
100K
100K
R0603
R158
NA
R0603
NA
R0603
C86
103
C0603
103
C0603
R116
0
R0603
C87
NA
C0603
C0603
R137
4K7
R0603
4K7
R0603
C108
104
104
R0603
R93
100K
R0603
100K
R0603
R82
10K
R0603
R0603
R97
8K2
R0603
8K2
R0603
R76
NA
NA
R0603
R151
6K8/1W
R12.5
6K8/1W
R12.5
R94
NA
R0603
NA
R0603
R113
33/1W
R12.5
33/1W
R12.5
R112
1K
R0603
1K
R0603
R135
1.5K
0603
C107
104
C0603
104
C0603
C106
105
C0603
105
C0603
R78
39K
R0603
R77
20K
R0603
R75
10K
R0603
C93
562
C0603
562
C0603
C111
103
R0603
103
R0603
+
-
IC3A
SIP14
3
2
1
4
11
R81
160K
R0603
R79
82K
R0603
R180
56K
R0603
56K
R0603
R104
4K7
R0603
4K7
R0603
C69
270P
C0603
270P
C0603
R90
300K
R0603
R0603
R96
270K
R0603
270K
R0603
R103
22K
R0603
22K
R0603
C72
223
C0603
223
C0603
C70
223
C0603
223
C0603
R95
3K9
R0603
R0603
C124
224
C0603
224
C0603
C123
474
C0603
474
C0603
R181
330
R0603
330
R0603
+
C105
100UF/10V
EC5/5
100UF/10V
EC5/5
C74
104
C0603
104
C0603
C73
104
C0603
104
C0603
C82
104
104
C0603
C79
104
104
C0603
ZD2
22V/1W
ZD7.5
22V/1W
ZD7.5
D6
D10B
D10B
IC2
DIP28
1
2
3
2
3
5
6
7
8
9
6
7
8
9
11
12
13
14
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
27
26
25
24
23
22
21
20
19
18
17
16
15
4
10
XOUT
XIN
TEST
P66
P65
P64
P63
P62
P65
P64
P63
P62
P60
P77
P76
P77
P76
VSS
VDD
RST
P10
P11
P12
P13
P14
P15
P16
P17
P72
P73
P74
P75
RST
P10
P11
P12
P13
P14
P15
P16
P17
P72
P73
P74
P75
P67
P61
R68
100K
R0603
100K
R0603
SW1
PAGE
SW2P
PAGE
SW2P
ZD1
22V/1W
ZD7.5
22V/1W
ZD7.5
ZD6
27V
ZD7.5
27V
ZD7.5
C100
1U/250V
MPC25\22
Q10
TO-92\EBC
R63
100K
R0603
100K
R0603
IC5
DIP4
DIP4
ZD7
27V
ZD7.5
27V
ZD7.5
R110
100K
R0603
100K
R0603
+
C91
10uF/100V
EC5\5
D5
D10B
D10B
R62
NA
R0603
NA
R0603
R147
0
R0603
+
-
IC3B
SIP14
5
6
7
4
11
R102
NA
R0603
NA
R0603
+
-
IC3C
SIP14
10
9
8
41
1
C132
104
C0603
C0603
R131
100K
R0603
100K
R0603
R132
2K2
R0603
2K2
R0603
R125
NA
R0603
NA
R0603
R152
20M 1/4W
R10
R80
2K2 R0603
R85
10K
R0603
R0603
C81
1U/250V
MPC25/22
MPC25/22
Q17
SOT-23
SOT-23
Q14
SOT-23
SOT-23
VCPU
RING DET
VB
VREG
VB
VREG
VB
AGC2
VREG
VREG
RF-DATA
RX DATA
TX DATA
EXPO
COMP
VCPU
RINGDET
PMUTE
CR-DET
VREG
CHAG-CNTL
CHAG-CNTL
VTX
RF-STB
A
PIN2
RF-CLK
PMUTE
AGC1
AGC1
IC3 PIN7
AGC2
VREG
KX-
TC120
5RUB
/
KX-TC
1205R
U
W
/
/
KX-TC
1205R
US
/
KX-
TC120
5RUF
60
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