Panasonic KX-TG9341T Service Manual page 81

(1)
(2)
(3)
(4)
(5)
1
2
*MIC1
(6)
R178
1k
(7)
(8)
(9)
R154
(10)
(11)
1k
(12)
(13)
*R134
(14)
(15)
(16)
(17)
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4.0V
4.0V CONVERTOR
3.3V
IC331
VOUT VIN
5 4
NC2 VDET
6 3
GND *RESET
7 2
CD NC1
8 1
RF_GND
MIP
RX
120mVp-p
C
MIN Q161
E
C178 C165 NC
0.022u
E C173
R164
B
Q171
2.7k
C K0.22
1k
R181 390 R182 56
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KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T
L300 22uH
Q300
IC300
1 5
ON/*OFF
VIN
2
VSS
3 VOUT 4
EXT
DCDC_IC
DIGITAL_GND
TX
800mVp-p
B
R161
100k
NC
*Q156
C
B
E
C184
K1.0
KX-TG9341/9342/9343/9344 SCHEMATIC DIAGRAM (Base Unit_Main)
81
6.5~12V
Charge detection
*Q361
E
*R361
B
*R365
3.3k
C C_DCP
*Q362
C
1k
*L362
CHARGE+
B
470nH
E
D301
*R373 NC
*R363 NC
CHARGE-
L372
NC
*L371 6.8uH
CHARGE PAD
C_DCM
CHG electrostatic GND
SP electrostatic GND
*Q141
R141
100k
C101 680p
Q142 D101
L101 33u
C
B
E 3 2
4 1
C102 680p
L102
33u
C121 680p
*C115
R121 390k
NC
R122 390k
*R115
C122 680p
NC Test Signal
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
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)
DCP2
F301
3.0A DCP
DCM
DCM2
L1T
L1R
P101 22
IN