Panasonic KX-TG9471CB Service Manual page 19

ANT1
CP+2.5V
(1)
(2)
(3)
BATTERY
(4)
(5)
(6)
GND
(7)
( )
R33
NC
GND
(8)
VREFm
(9)
(10)
(11)
VREFm
(12)
(13)
ANT2-TP
GND
ANT1-TP
C122
GND
1.8p
GND
R107
R106 R109
220 0 0
GND GND GND
GND
1.8p
C803
C804 C802
2.4p
2.4p
C172
GND GND GND GND
K100n
8 1
VCC A0
7 2
WP A1
6 3
SCL A2
64K
5 4
SDA GND
IC3
GND
GND GND
R34
HEADSET_DET
100k
VREFm1 VREFm1
MICh
LSRp
L3
L9
LSRp
( )
NC
LSRn
RX-AF
TX _AF
MICp
MICn
C-Check1
R108
ANT2
220
GND
GND
GND
L805
GND
GND
GND
L804
1.2p
GND
GND
GND
GND
Sp-phone (Portable)
R208 NC
( )
R209 NC
( )
C86
R100
( )
D10u
NC
( )
R101
NC
GND GND GND
C-Check2
GND GND
KX-TGA939 SCHEMATIC DIAGRAM (Portable_Main)
19
KX-TG9471CB/KX-TG9472CB/KX-TGA939CB
R807
RXON
220
GND
C826
2.2p
RX_RF
50
C832
RF_RXn
7p
RF_RXp
GND
R806
220
C825
BATTERY
D10p
GND
R805
47
C819
D10p
GND
GND GND
TX_RF
11
10 1
PSET
VCC
9 2
PO GND VCCS
8
3
POX PI
7
4
PIX
PSEL
6
5
PRAMP
PAON
C814
IC801
K3300p
GND
R803
PSEL
1k
R804
PON
1k
SPEAKER+
D14 D13
SPEAKER-
GND GND GND GND
L71
CN4
R306 0
1
100
L72
2
3
Headset Jack
( )
L73 NC 4
5
L74
10
C185
C110
K1n
K1n
R307 R308
( )
GND
VREFm
VREFm1 VREFm1 VREFm1 GND VREFm
VREFm1
C70 D19 C152
K10p K1n
NC D21
C71 D20
K10p NC D22
GND GND GND GND GND GND
MIC+
L10
1
33
MIC
L11
2
33
MIC-
R309
( )
NC
GND GND GND GND
GND GND GND
NC: No Components
TXON
VDD_PADRV
TXn
TXp
VREFm1
RECEVER+
RECEVER-
AP1
R310
( )
NC
GND