Panasonic VL-SWD272BX - Main Board (8); PBX_I;F

89
VL-SWD272BX/SWD272CX/SWD272CX1/SWD272AZ/VL-WD613CX/VL-WD613CX1
13.1.8. Main Board (8) / PBX_I/F
+
-
C8203p
R805150
DG
L801
RL801
1
2
3 45
6 7
8
C816 100p
DG
TEL_HOOK 3:1D
C815 6800p
C822 3p
C809
8200p
C808
220p
L802
+12V
C811
0.22u
16
VDD33
R804
270 0.25
C819
3p
TEL_CALL 3:1D
D801
1
3
2
C812
( )
NC
C804
1200p
R803
1k
R808
10k
IC801
1
AOUT
2
A
- IN
3
A+IN
4
V
-
5
B+IN
6
B
- IN
7
BOUT
8
V+
VREF2
D802
1
3
2
R802
820
R809
68
0.25
C818
( )
NC
C805
4.7u
16
R816 180k
D803
( )
NC
R812
4.7k
DG
R814 27k
C814 6800p
D804
R818
12k
VREF2
VREF2
PBX_OUT
2:1C
R806180
IC800
1 23
4
AGND
R813 27k
T801
1 56 3
10
C803 1200p
PBX_IN 2:1D
C801
0.01u
3p C821
AGND
R801
10k
R815 180k
R817
180k
TEL_CON
3:1D
C813 100p
AGND
DG
AGND
C802
10u 10V
R820
5.6k
AGND
C810
100u 16
Q804
R810
10k
1
23
4
VREF2
+12V2 +12V
R819
47k
AGND
+
+12V2
Q803
2.2k
47k
PBX-P
5:3E
PBX-N
5:3E
Q805
10k
10k
VL-SWD272/VL-MWD272: Main Board No.8: PBX_I/F
NC: No Components
C E
B
A D F
3 6421 5 87