Schematic Diagram (Base Unit_Main) - Panasonic KX-TG9120FXS Service Manual

KX-TG9120FXS/KX-TGA910FXS

12.2. Schematic Diagram (Base Unit_Main)

L2T L1T L1R L2R
J1
NC
6
1
2
3
4
5
CN1
J2
NC
1
J101 DC_IN
DCM
2
CN2
+8.0V
C34
Cont
Cn
5 4
NC
GND
3
Sub
6
NC
+4.0V
2
Vin
Vout
7 1
IC2
NC
IC3
1
CD
C38
2
+VREF
NC
3
C39
+VIN
4
-VIN
NC
C40
NC
R41
NC
CN4
1
R49
2
NC
NC
R50
Q6
NC
3
3
1
2
1
NC
Charge Current
R55
TP16 Charge +
22
TP15 Charge - 1
R56 A0
2
A1
22
3
A2
4
VSS
EEPROM
+3.3V
R59
2.2k
NC: No Components
L1
33u
L2
33u
TP_RLY1
C3
L1T/TP_RLY2
1500p
L2T/TP_RLY3 For JT
L1R/TP_RLY4
C4
TP_RLY5
D2
2 1 1500p
Q1
3
NC
2
1
NC
For NL
3.3V
+3.3V VDD3
IC1
2
Output
3
R64
Input
4
Fin
NC
ADJ/GND
1
VDD
1
I/O
2
VDD4
O/I
VSS
3
SP+ CONT
IC6
C140
0.1u
NC
SP+
R44
8
VOUT2
7 NC
SP-
GND
6
V+
5
VOUT1
R45
R42
NC NC
SP-
C42
NC
+2.5V
C134
NC
C143
C151
NC
IC4 NC
10p
VDD
1 5
Q7
I/O
R54 C47
2 2
O/I
NC NC
NC
VSS
3 4
CONT
C148 10p
+2.5V
IC5
8
VCC
7
WP
6
SCL
5
SDA
+2.5V
Q14
1
2
3
R61
1k
Q3
D3
2 1
R14
100k
3 4
R13
680
3
1
3
2
Q2
2
C5
R3
180k K1000p
R4
1M
C6
R5
R6 K1000p
180k
1M
Caller ID,
R7
Bell Signal
NC
+2.5V
R9
NC
R67
+2.5V
18
5
R66
4
NC
VDD2
1
2
3
4
5
C60
6
K0.1u
7
8
9
10
11
C61
12
K0.1u
R73 13
14
3.3M
15
C62
1 3
16
J27p
X1
2
C63
D6p
25mV p-p
0.7V
TX DATA
0V
70
LINE_DC
Loop Current
Q5
2
1
C18 C19
TP9
R17
1
5.6k 10p
3.9k
R20
Q4
4.7k
+2.5V
C52
J220p
R32
100k
C53 Bell signal
RX_AF
C54
J220p
R34
K0.022u
100k R36
100k
1.8V
VDD1 +1.8V
Q8
48
*INT1/P11 LDO2_CTRL
47
LDO1_CTRL
VDDIO1
46
VDD1 VBAT1
45
VSS1 *RST
44
P17/CHARGE/INT7
SDA1/P25
43
SCL1/P24 P23/ADC1
42
*INT5/VDDE/P15 VDD3
IC7
41
VSS3
*INT2/P12
40
AVD P07/SPIDI/PCM_DIN
BBIC
39
AVS P06/SPIDO/PCM_DOUT
38
CAP P05/SPICLK/PCM_CLK
37
Xtal1 P04/SCL2
36
VSSRF P03/SDA2
35
RFCLKp P02/JTIO
34
RSSI/RFCLKm P01/URX
33
P00/UTX
VDDRF
R75 100
JTAG
TP23
RX DATA
R74
NC
1 2
SW1
NC
(1)
3
R23 C22 R29
100k 1u 56
R27
100k
TX_AF
R116 18
TP10
R69
NSA/CLIP
0
R70
TAMIC_CSn
0
2.5V
+2.5V
Q9
R81
3.3k
C72
K220n
SPIDI
C73
SPIDO
K0.1u SPICLK
TAM_RSTn
TAM_CSn
(2)
(3)
R79
J103 RX
1k
R80
J102 TX
1k
J104 GND