Panasonic KMS1409096CE, Service Manual

Page: 55 / 191

55
KX-NS500AG
K X -N S 500 A G MOTHER BO A RD NO. 6 2 / 2
+
-
+
-
+
-
+
-
C
E
B
A
D
F
8 7 10 9
G
PT_T XA [0]
S IGN 2 931
PT_T XA [1]
PT_R XA [0]
PT_R XA [1]
PT_R X B[0]
PT_R X B[1]
IC300B
4
GND
8
V CC
+3.3 V
IC300 A
4
GND
8
V CC
R3
2
31
0
k
IC300B
5
6
7
R3
2
4
5.1
k
IC300 A
3
2
1
C308
0.01u
1 6
IC300B
3
2
1
R3
2
51
0
k
DG
IC300 A
5
6
7
DG
R318 A
1.5 k
R31
2A
27
0
C303 A
1u 1 6
R31 7A
1.5 k
DG
R31 6A
910
R314 A
22
R315 A
910
R319 A
2 . 2k
R3
22A
2
.
2k
PT_T XA [1]
PT_T XA [0]
PT_T X B[1]
PT_T X B[0]
PT_R XA [0]
PT_R XA [1]
C30
7A
0.1u 50
+3.3 V
DG
+3.3 V
DG
C308
A
0.1u 50
DG
PT_R X B[1]
PT_R X B[0]
R
6
08
22
.1
k
C
6
08
22
u
6
.3
C
6
01
10u
2
5
+3.3 V
C
6
0
6
3300p 50
L 6 00 2 . 2 u
C
6
05
1u
1
6
C
6
04
NC
C
6
09
22
u
6
.3
R
6
09
10
k
R
6
0
77
3.
2k
C
6
0
2
10u
2
5
PG
PG
PG DG
C304 A
1000p 50
C305 A
1000p 50
U303 A
2
6
1
U303 A
5
3
4
C30 2A
1u 1 6
R313 A
22
R314B
22
C30 2 B
1u 1 6 C304B
1000p 50
C305B
1000p 50
R313B
22
R31 7 B
1.5 k
R31
2
B
27
0
C303B
1u 1 6
DG
R31 6 B
910
U303B
2
6
1
R318B
1.5 k
DG
R315B
910
R319B
2 . 2k
U303B
5
3
4
R3
22
B
2
.
2k
C
6
03
0.1u
50
NC
C 6 0 7
0.1u 50
+3.3 V
PG
R 62 1 0
R 622 0
PG DG
R 6 3 6 0
IC 6 00
1 EN
2 V
FB
3
V REG5
4
SS
5
GND1
6
S W
7
V B S T
8
V IN
9
GND 2
+3.3 V
+3.3 V
+3.3 V
R3
2
3
A
1
k
R3
2
4
A
1
k
R3
2
3B
1
k
R3
2
4B
1
k
+3.3 V
R 6 40 0
R 6 41 0
R 6 4 2 0
PG
PG PG
R
62
3
NC
PG
C
6
30
NC
PG
.
(1)
( 2 )
(3)
(4)
(5)
( 6 )
1 2
6