Panasonic KX-TG9331T Service Manual page 19

(1)
3.3V
(2)
(3)
(4)
(5)
MIP
RX
1 120mVp-p
2
*MIC1
(6)
MIN
R178 C178
1k 0.022u
E
B
Q171
C
(7)
(8)
(9)
R154
(10)
(11)
1k
(12)
(13)
*R134 1k
(14)
(15)
(16)
(17)
4.0V
4.0V CONVERTOR
IC331
L300 22uH
VOUT VIN
5 4
NC2 VDET
6 3
GND *RESET
7 2
CD NC1
8 1
Q300
RF_GND DIGITAL_GND
TX
800mVp-p
C
B
Q161
E
C165 NC
C173
R164 R161
2.7k 100k
K0.22
R181 390 R182 56 C184
K1.0
Charge detection
IC300
*R365
*Q362
1 5 C
ON/*OFF
NC
VIN
2
VSS
E
3 VOUT 4
EXT
DCDC_IC
*Q141
NC
*Q156
C
B
Q142
E C
B
E
KX-TG9332/9333/9334 SCHEMATIC DIAGRAM (Base Unit_Main)
19
KX-TG9331T/KX-TGA931T
6.5~12V
REFERENCE
1XX : TEL LINE
3XX : POWER, CHARGE
4XX : RESET, MIC, SP
5XX : DSP, RF I/F
6XX : FLASH, KEY, LCD
7XX : RF(2.4G)
*Q361
8XX : RF(5.8G)
NC
E
*R361
B
NC
C C_DCP
NC
*L362
CHARGE+
B
470nH
D301
*R373 NC
*R363 NC
CHARGE-
L372
NC
*L371 6.8uH
CHARGE PAD
C_DCM
CHG electrostatic GND
SP electrostatic GND
R141
100k
C101 680p
D101
L101 33u
3 2
4 1
C102 680p
L102
33u
C121 680p
*C115
R121 390k
NC
R122 390k
*R115
C122 680p
Test Signal
NC
CID
Frequency: 1kHz
Rx
(MIC Mute: ON)
-25dBm/600
100mVp-p
Tx
-10dBm/600
700mVp-p
Q111
E
B
C
Bell detection
NC: No Components
DCP2
F301
3.0A DCP
DCM
DCM2
L1T
L1R
P101 22
IN