Panasonic KX-PRX120W Service Manual page 60

KX-PRX120W/KX-PRXA10W
*R30
820
(1005)
NC
C155
TP10
C22
R116 R29 R23
0
0
1u 100k
R27
2.7k
GND
+1.8V
Tx AF
+2.85V
1.8V
(1)
+1.8V
VDD1
(2)
Q8
C614
+5.5V
1u
CIDOUT/MICn
20
CIDINn/MICp
19
VREFp
18
CIDINp/P3_2
17
RINGp/P3_7
16
RINGn/P3_6
15
RINGOUT/RINGING/P3_5
14
IC7 PARADET/P3_4
13
RF_SUPPLY1
12
AVD_XTAL
11
XTAL1
10
XTAL2
9
AVS_XTAL
8
REF_RES
7
RFP0
6
RFP1
5
VSS_LNA2
4
RF_RXp
3
RF_RXn
2
VSS_LNA1
1
(3)
VDD2
10k C74 C76
R71 10p
NC
+2.4V
(4)
Q9
C617 C77
1u
NC
(5)
11
12
LINE_DC
Q3
Q5
C18
Q4
NC
TP9
*R20
2.7k
GND GND
Rx AF
R34 82k
Bell signal
C53 820p
R35
1k
R36
120k
250mVp-p
R33 C54
33n
1k
C55
R38 1k 82n
C65 D10p
C305
1u
C306 NC
R615
3 1
56k F
X1
10.368M
2
R109
220
113 DUMMY16
112 DUMMY15
111 DUMMY14
ANT1
110 DUMMY13
RXON
109 DUMMY12
RF_RXp
108 DUMMY11
RF_RXn
107 DUMMY10
Rx RF
106 DUMMY9
Tx RF 105 DUMMY8
104 DUMMY7
RF_TXn
103 DUMMY6
TXON
102 DUMMY5
RF_TXp
101 DUMMY4
ANT2
100 DUMMY3
R106 220
99 DUMMY2
98 DUMMY1
*Shield
10 9 8 7
6
1 2 3 4 5
C9 680p
D3
R14
3 2
100k
4 1
C10 680p
*Q2
*R17 *R13
2.2k
680
*R12
D5 NC
+1.8V
D6 NC
C5
10n 180k
R4 1M
C6
10n 180k
R6 1M
CHARGE_DET
0.75V
0V
QSPI_IO1
QSPI_IO1
QSPI_CS +3.0_CP
96
QSPI_CS
QSPI_IO2
95
QSPI_IO2
94
VDDIO
93 QSPI_IO0
QSPI_IO0
92 QSPI_SCK
QSPI_SCK
91 QSPI_IO3
QSPI_IO3
90
ULP_PORT
89
+2.85V
ULP_VBAT
88
ULP_MAIN
87
DC_CTRLN
86
VBAT
85
DC_CTRL
84
DC_DCI
83
DC_SENSE
82
ACFL
ONE_CELL
81
IC7
+2.85V
3.0V
+3.0_CP
Q362
IC431
NC
1 *CS 8
VCC
2 SO/SIO1
7
+5.5V
NC/SIO3
R368
3 *WP/SIO2 6
NC
SCLK R365
4 GND 5
SI/SIO0
NC
R366 NC
KX-PRX120 SCHEMATIC DIAGRAM (Base Unit_Main)
60
Loop current
*R7
NC
GAP
*R9
NC
Caller ID
R3 R42 C42
Bell signal
4.7M 10n
C3 680p
R5 R43 C43
4.7M 10n
C4 680p
+1.8V
R811
NC
R130
Q22
1k R126
Q23
NC
NC
NC
2.85V
+2.85V
VDD3
3V DCDC convertor
L3
4
22uH
5
R607
R608
R612 0.1
Q10
NC
+2.85V
+2.85V
+2.85V
+1.8V +5.5V
Q361
NC
Q354
Q363
NC
L2R L1R L1T L2T
P1
SA2
NC
+5.5V
DC_IN J101
!
F1 3A DCP
DCM
GND1
CHARGE+
TP16
Charge +
Charge -
TP15
+5.5V
DC_IN
D28
3
NC
2
1
IC2
0.1
0.1
GND1
Q602
CHARGE+
Q351
NC
+5.5V
+5.5V
*IC351
NC
2.7V
R351
1 VOUT 2
VIN
NC
3
Q352
NC
VSS
4
NC: No Components