Schematic Diagram (Base Unit) - Panasonic KX-TG1381 Service Manual

KX-TG1381HKH/KX-TG1381HKV/KX-TG1381HKW/KX-TG1382HKH/KX-TGA131HMH/KX-TGA131HMV/KX-TGA131HMW

13.2. Schematic Diagram (Base Unit)

+0V ON-HOOK
+9.8V DC OFF-HOOK
+0V ON-HOOK
+9.8V DC OFF-HOOK
R4
150
Q1
B
NC
C C
C8
R2 C5 R7
100 1u 100k
AG
R8
NC
AG AG
VDDA
C7 100n
IC1
1 8
A0 VCC
2 7
A1 WP
C
3 6
A2 SCL
4 5
VSS SDA
C
+0V ON-HOOK
LINE_DC
+0.7V DC OFF-HOOK
C
C C
C
E
C10
NC
R11
3.9k
C C
AG AG
AG AG
AG
AG
R15
2.2k
VDDA
+2.5V
DC
AG AG
AG AG AG
AG
MICN/LINEN
B61
MICS/LINEA
B62
MAD2P
B63
MAD4P
B64
MAD4N
B65
CHARGESTART
B58
VSS_6
B66
CDT
B59
VDDA
B67
HO1P
B68
HO1N
B69
PL35
B70
PL34
B71
PL33
B72
PL32
B73
PL31
B74
PL30
B75
PL29
B76
PL28
B77
PL25
B78
PL23
B79
P0.0
B80
I2DAT
B81
SUPEEP
B83
I2CLK
B82
SCLK
B90
VSS_1
B5
VDDBAT
B4
MTSR
B89
100k R17
GND1
C
P1.1
J102 J103
20.736MHz
+60V DC ON-HOOK
+10V DC OFF-HOOK
Q3
C E
D2
1
B R26
100k
4
C
Q2
Q4
C
R27 C
B B
680
E
E
C
C C
C
R24
C26
R33
NC
820k 22n
C
C
C
R25
NC
R34 C27
820k 22n
C C
C VDD
VDD
C C
C C
VDDIO R47 NC
AG
+2.85V DC
IC3
+1.5V DC
VDDIO
C23
C22
1 2
3 4
2p 10p
R23
SW1
C
NC
X1
C
3 1
2
C
KX-TG1381/1382HK SCHEMATIC DIAGRAM (Base unit main)
54
2
3
C
R40
NC
R38
R41
NC
NC
SA2
+3.3V DC
NC
C
J101
IC2
+8.0V
2
DC_IN
3
Output
Input
4
Fin
ADJ/GND
1
C C C
+2.6V DC
VDDPA/RF
VDDPA/RF
IC4
2
Output
Input
4
Fin
ADJ/GND
1
C C
C
GND34
GND34
VSS_7
B84
GND32
GND32
GND39
GND39
GND29
GND29
GND41
GND41
GND27
GND27
GND43
GND43
GND24
ANT_2
GND24
GND45
GND45
GND21
GND21
GND35
GND35
GND18
GND18
GND30
GND30
GND16 C
GND16
GND36
GND36
GND13
GND13
/4
GND12
GND12
GND10
GND10
GND46
GND46
GND7
GND7
GND44
GND44
GND4
GND4
GND42
GND42
GND2
GND2
GND40
GND40
GND23
GND23
L2R L1R L1T L2T
6
1
2
3
4
5
J1
DCP
F1
D5
3A
K A 1
2
J2
DCM
C
CL14
Charge +
CL13
3
Charge -
C
ANT_1
C
/4
TP3
C
C
C
C
NC: No Components