Panasonic KX-TG6431M, Service Manual, Page: 21 / 31

21
KX-TG6431M/KX-TG6431T/KX-TGA641M/KX-TGA641T
NC: No Components
KX-TG6431 SCHEMATIC DIAGRAM (Base Unit_Main)
R364
NC
R361
NC
L361
6.8u
L371 6.8uH
10k
R113
100k
R141
C132
K0.01u
K0.01u
C142
47k
R114
390k R121
390k R122
R134 1k
CHARGE-
C301
NC
R157
NC
DCP2
DCM
C111
0.047u
C112 0.047u
33u L101
33u L102
C162
NC
C173
K0.22u
D101
4
3
1
2
R133
1M
1k R154
100
R176
IC331
1
NC1
2
*RESET
3
VDET
4
VIN
5
VOUT
6
NC2
7
GND
8
CD
NC
C167
SA102
300V
10u
C176
SA101
NC
2
1
R156
NC
Q142
B
C
E
D362
NC
A
K
Q361
NC
B
E
C
NC
C141
C143
NC NC
R144
2.2k
R145
2.7k
R142
NC
R155
NC
C164
NC
C160
27k
R165
100k
R161
C163
NC
NC C166
NC C165
NC
C171
NC
R166
2.2u
C168
NC
C182
NC
C183
F301
3.0A
R115NC
L1T
L1R
Q156
NC
B
C
E
D361
22V
AK
Q362
NC
B
C
E
D142
NC
AK
Q111
B
C
E
D113
AK
Q161 B
C
E
Q171
B
C
E
D133
AK
D153
AK
R362
0
NC
L372
R375 NC
L362
470nH
C331
K0.47u
100k
R172
K1.0u
C342
K0.01u
C152
10M
R151
D301
390 R181 56 R182
C181
0.1u
27
R167
22
R171
82
R160
12
R163
2.7k
R164
820
R168
C184
K1.0u
1000p
C172
C169
NC
NC
C170
680p C121
680p C122
100k
R111
100k
R112
R131
10M
R363NC
D143
25V
3.3M
R152
R365
NC
680p C101
680p C102
NC C116
NC C115
Q141
B
E C
50
10u
C161
C174
NC
0.022u
C178
C179
NC
C361
NC
C113
K0.68u
P101 22
DCP
R372
10
R371
10
R374
10
R373
10
6.3
330u
C341
C451
NC
R451
NC
C452
NC
NC
SA103
2
1
560
R175
R162
47k
GAP
K1.0u
C343
NC
D341
A K
16
100u
C306
K1.0u
C321
10p
C186
NC
C114
D145
NC
DCM2
VCCA
REFERENCE
1XX : TEL LINE
3XX : POWER, CHARGE
4XX : RESET, MIC, SP
5XX : DSP, RF I/F
6XX : FLASH, KEY, LCD
7XX : RF(2.4G)
8XX : RF(5.8G)
CHARGE PAD
CID
RF_GND DIGITAL_GND
Bell detection
SP static GND
CHG static GND
Charging detection
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(14)
(15)
(16)
(17)
(13)
(12)
TX
800mVp-p
RX
120mVp-p
3.3V 7.5 ~ 6.5V (+6.7V)
Test Signal
Frequency: 1kHz
* RX
(MIC Mute: ON)
-25dBm/600
Ω
IN
100mVp-p
* TX
-10dBm/600
Ω
700mVp-p