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(1)
3.3V
VCC 3.3V
(2)
IC332
1
5
OUT
CD
2
VDD
3
4
GND
NC
RESET 2.7V
(3)
RX
RX
11mVp-p
125mVp-p
C173
NC
R172
100K
C172
K2700P(50V)
C167
Q171
C174
NC
(4)
(5)
(6)
(7)
R183 2.2K
C185 K0.018
R185 33K
(8)
C183 NC
(9)
(10)
(11)
(12)
(13)
(14)
(15)
IC331
L300
3.3u
2
3.3V
1
OUT
IN
GND
3
TX
800mVp-p
Q161
K0.22
R164
47
R162
39K
R167
1K
C163
K4700P(50V)
Q156
NC
HOOK_DCIN
CIDP
CIDM
TX
82mVp-p
HOOK_RLY
BELL
KX-TG2431W / KX-TG2432W / KX-TG2432B / KX-TGA242W / KX-TGA242B
R365
1K
R361 3.3K
Q361
R364
10K
Q362
C371
K0.1
R375
390
R374
100
Q372
Q373
CHG
CHG_CONT
Q143
NC
Q141
C141
NC
R141
100K
Q131
Q142
D131
NC
R121
390K
C121
K680P(50V)
R122
390K
C122
K680P(50V)
KX-TG2431/2432 SCHEMATIC DIAGRAM (Base Unit_Main)
23
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)
D362
CHARGE PAD
CP
CHARGE+
L371
CHRGE-
CM
6.8uH
Q371
7~10V
DCP
D301
Q340
R342
47K
TEST SIGNAL
FREQUENCY
1kHz
RX
(MIC Mute: ON)
-25dBm/600Ω
IN 100mVp-p
C101
680P(3216)
DCM
L1T
D101
L101
33uH
3
2
4
1
L102
33uH
C102
P101 22
680P(3216)
L1R
TX
-10dBm/600Ω
OUT
700mVp-p
Q111
NC: No Components
CN101
1 +6v
2 GND
4 T
3 R
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