Read Panasonic KX-TC1225RUB Service Manual online
C126
1
470
R142
1
C125
Z1.0
1
2
3
D106
1
1.0M
R143
1
R141
22K
1
R140
6.8K
2
3
1
Q112
1
3.3K
R144
1
3
2
VOL101
NC
1
R137
0
1
C116
NC
1
K0.22
1
R132
2.7K
LINE_DTE1
1
R118
4.7K
LINE_SZ
BELL_IN
DC_IN
120K
RELAY
1
NC
D107
1
R111
NC
1
R110
NC
1
47K
R136
1
NC
R148
1
R153
NC
1
NC
R150
1
C129
N
C
1
C121
K0.033
2
3
1
Q111
LINE_DTE2
2
3
1
Q113
NC
1
C130
N
C
2
3
1
Q109
NC
1
R151
NC
5
+
6
-
IC101:B
2
-
3
+
8
4
IC101:A
1
NC
R149
1
R152
NC
+
NC
C128
1
C133
NC
1
R161
NC
2
-
3
+
8
4
IC102:A
1
R159
NC
1
R156
NC
5
+
6
-
IC102:B
1
NC
R158
R124
10K
1
R123
2.2K
1
R122
820
+
25V22uF
C111
1
C110
NC
1
R121
0
1
C109
K0.01
1
R120
39K
1
D108
0
1
C107
K4700P
1
M18V
D104
1
R119
1
0
K
Q108
1
R116
1/4W 10
1
R117
100K
1
R109
4.7K
Q105
NC
1
R113
NC
+
C108
0
2
3
1
Q107
NC
1
NC
R114
1
R115
NC
1
R112
NC
2
3
1
Q106
NC
1
R105
NC
1
R106
100K
Q103
Q102
NC
1
R108
100K
1
R107
4.7K
Q104
2
3
1
Q101
NC
1
NC
C105
1
500V680P
C104
4
AC-IN
3
AC-IN
+
-
D103
1
NC
R103
1
NC
C106
1
500V680P
C103
1
R102
NC
TIP
1
0
PO101
1
SA101
1
L101
33uH
33uH
1
D101
3.3V
1
R101
1/4W 15K
DC +
DC -
TIP
RING
CN1
RING
1
NC
C101
1
SA102
1
L102
33uH
1
C102
250V 1uF
1
D102
3.3V
1
C120
K0.47
1
K0.15
C118
1
2
3
D105
1
100K
R133
1
4.7K
R135
1
100K
R134
1
K0.15
C119
TIP_OUT
TIP_IN
1
R146
NC
RING_OUT
RING_IN
1
NC
R147
1
R154
NC
1
NC
R155
1
D306
1
D307
NC
+
C317
6.3V100
1
D309
0
1
R346
NC
1
0
R344
1
D308
1
R338
100K
1
K0.22
C343
1
R314
NC
1
GND
2
VDD
3
CD
4
OUT
IC302
1
R345
47K
1
R310
N
C
1
R313
10K
1
R309
3.9K
1
C316
Z1.0
1
L316
1
C307
J220P
1
L314 NC
1
Z0.1
C306
1
D304
1
L312
1
R304
1.0K
+
C305
6.3V100
1
L313 NC
1
R303 NC
1
NC
C308
MIC2
MIC1
1
D305
M6.2V
1
R307
0
1
R305
3.3K
1
C313
K0.1
1
C314
K0.01
+
6.3V100
C310
1
R306
NC
1
R308
NC
2
3
1
Q301
NC
1
C312
K0.056
LEVEL_CONT
DC_IN
1
C304
NC
1
D209
N
C
1
NC
D208
1
D303
1
K0.01
C213
2
3
1
Q202
+
-
MIC
1
JP301
NC
1
Z0.1
C342
PWR_DOWN
1
R336
NC
BELL_IN
DC5V(DIGITAL2)
+
C301
6.3V1000
SPEAKER
1
2KA213
L311
DC5V(ANALOG)
SP1
SP2
1
C303
NC
1
D301
H5.1V
1
D302
H5.1V
SP3
SP4
DC5V(DIGITAL1)
1
L301
1
C135
NC
1
R164
NC
1
NC
R162
1
NC
R163
2
3
1
Q114
NC
1
C136
NC
1
R165
NC
1
C127
K0.22
1
C137
K0.047
1
3.3K
R145
1
R139
NC
1
C123
NC
1
D205
S5688G
1
C132
N
C
1
C124
NC
1
R160
NC
+
NC
C131
1
NC
R157
LINE-MOD
TX-VCO
RX-VCO
TX-POWER
RX-VCO
TX-POWER
DATA-MOD
ITEM
1
C122
NC
1
R138
NC
DTMF DUAL
MIC IN - LINE OUT
MIC IN - SP OUT
SP SP OUT
SP LINE OUT
SP LINE OUT
RETURN LOSS
DC IMP
LINE-OUT
CONSUMPUTION
NOISE-SQ
5V
8V
PWR_DOWN
1
100K
R203
1
R201
1/4W 270
Q201
1
D203
+
C207
6.3V220
+
C206
16V100
DC 8V
1
R202
330K
1
D204
+
16V10
C205
1
D202
H6.2V
1
R209
100K
1
NC
R208
REG_GND
1
C214
NC
3
2
1
OUT
IN
GND
REG201
1
C204
Z1.0
1
R207
56K
2
3
1
Q203
2
3
1
Q204
1
C201
K1000P
DC12V
+
NC
C203
1
H6.2V
D210
1
L201
10uH
10uH
1
C202
Z1.0
1
D201
M30V
1
10uH
L202
PWR_GND
1
R206
1.8K
-40dBm / 1KHz
600
SET SPEC(10CH / 40mA)
20mA
-20dBm / 1KHz
DATA
TALK
3m
3m
CONDITION
3KHzdev / 1KHz , 60dB
-50dBm / 1KHz
-40dBm / 1KHz
-20dBm / 1KHz
-40dBm / 1KHz
-20dBm / 1KHz
P_GND
CH3
CH4
CHG1
CHG2
1
C208
NC
1
C211
Z1.0
1
C212
Z1.0
1
R205
10K
1
C210
N
C
1
C209
N
C
1
D207
M18V
1
D206
M18V
1
1/4W 39
R204
1
L203
10uH
1
L204
10uH
RX-SENSITIVITY
RADIATION POWER
1
(32)
(28)
(29)
(30)
(31)
(27)
(33)
CDL-TX=-0.2dBm
SP-TX=-1.8dBm
RX=-25.0dBm
SP-TX=-1.8dBm
RX=-25.0dBm
CDL-TX=-0.7dBm
SP-TX=-2.8dBm
RX=-25.0dBm
SP-TX=-2.8dBm
RX=-25.0dBm
SP-TX=-7.4dBm
CDL-TX=-5.7dBm
CDL-TX=-5.7dBm
SP-RX=-9.0dBm
SP-P AF
=-58.4dBm
=-58.4dBm
TALK LIAF=-14.1dBm
CDL-TX=-0.7dBm
SP-TX=-2.4dBm
SP-TX=-2.4dBm
1KHz
-25dBm
-25dBm
DC48V
Loop simulator
40mA
Loop simulator
40mA
1kHz
1kHz
1kHz
-51dBm
-51dBm
RX DATA
300Hz/400Hz
5V
300Hz/400Hz
5V
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
(24)
(26)
(25)
(25)
KX-TC1225RUB : SCHEMATIC DIAGRAM (BASE UNIT)
73
KX-TC1225RUB
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