Read Panasonic KX-NS500 / KX-NS520 / KX-NS500RU / KX-NS520RU (serv.man2) Service Manual Supplement online
14
2.1.6.
No.6
+
-
+
-
+
-
+
-
C
E
B
A
D
F
3
6
4
2
5
8
7
11
10
9
G
H
12
PT_TXA[0]
PT_TXA[1]
PT_RXA[0]
PT_RXA[1]
PT_RXB[0]
PT_RXB[1]
JK300A
8
7
6
5
4
3
2
1
IC300B
4
GND
8
VCC
+3.3V
IC300A
4
GND
8
VCC
R323
10k
IC300B
5
6
7
R324
5.1k
IC300A
3
2
1
C308
0.01u
16
IC300B
3
2
1
R325
10k
DG
IC300A
5
6
7
DG
R318A
1.5k
R312A
270
T300A
1
2
4
5
6
7
10
9
8
R306A
22k
R303A
100k
C303A
1u
16
R308A
10k
R309A
10k
R317A
1.5k
R307A
56
+3.3V
DG
R305A
22k
R316A
910
R300A
1M
R310A
8.2
+40V
ZNR301A
DG
ZNR300A
R314A
22
R315A
910
R301A
150k
R304A
22k
R302A
10k
1
2
3
45
6
7
8
C301A
1u
10
C300A
1u
50
R311A
22
+3.3V
FG
Q300A
B
E
C
R319A
2.2k
R322A
2.2k
PT_POWA
PT_CURA
PT_TXA[1]
PT_TXA[0]
PT_TXB[1]
PT_TXB[0]
PT_RXA[0]
PT_RXA[1]
C307A
0.1u
50
+3.3V
DG
+3.3V
DG
C308A
0.1u
50
DG
PT_RXB[1]
PT_RXB[0]
R608
22.1k
R602
47k
C608
22u
6.3
C601
10u
25
+3.3V
C606
3300p
50
R605
33k
R604
10k
L600
2.2u
C605
1u
16
Q600
5
4
3
D601
C604
NC
C600
0.47u
50
C609
22u
6.3
R609
10k
D600
5.13
CN601
1
2
3
Q600
2
6
1
R601
2.2k
CN600
1
2
3
4
5
6
7
8
9
10
R607
73.2k
R606
10k
CF601
CF600
R600
1k
C602
10u
25
Q601
1
S1
2
S2
3
S3
4
G
5
D1
6
D2
7
D3
8
D4
PG
C610
10u
25
DG
R612
10k
+3.3V
D602
NC
DG
FAN_ALM
IC601
1
NC
2
A
3
GND
5
VCC
4
Y
DC_ALM
AC_ALM
IC602
1
NC
2
A
3
GND
5
VCC
4
Y
DG
+3.3V
R613
10k
R616
2.2k
R614
10k
+3.3V
R615
2.2k
C612
1000p
50
C613
1000p
50
DG
C615
0.1u
50
C616
0.1u
50
+15V
PG
PG
PG
PG
DG
+40V
C304A
1000p
50
C305A
1000p
50
U303A
2
6
1
U303A
5
3
4
C302A
1u
16
R313A
22
U300AB
2
6
1
U300AB
5
3
4
U301A
2
6
1
U301A
5
3
4
U302A
2
6
1
U302A
5
3
4
C306A
0.1u
16
U301B
5
3
4
R314B
22
R309B
10k
U302B
2
6
1
C302B
1u
16
C304B
1000p
50
R302B
10k
1
2
3
45
6
7
8
T300B
1
2
4
5
6
7
10
9
8
C305B
1000p
50
R313B
22
U302B
5
3
4
R317B
1.5k
R310B
8.2
C306B
0.1u
16
R305B
22k
FG
R312B
270
R301B
150k
R307B
56
+40V
PT_POWB
C300B
1u
50
C303B
1u
16
C301B
1u
10
PT_CURB
+3.3V
DG
R316B
910
R311B
22
U303B
2
6
1
Q300B
B
E
C
R308B
10k
R318B
1.5k
DG
R300B
1M
+3.3V
R306B
22k
U301B
2
6
1
R315B
910
ZNR301B
R319B
2.2k
U303B
5
3
4
R304B
22k
ZNR300B
DG
R303B
100k
R322B
2.2k
D300B
D300A
D301A
D301B
C614
0.1u
50
C611
0.1u
50
R603
47k
C603
0.1u
50
NC
C607
0.1u
50
R611
62
@ERG2SJ620P
NC
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
+3.3V
+15V
D303
+40V
PG
+40V_OP
DG
R621
0
R622
0
PG
DG
R636
0
DG
C619
0.1u
100
C620
0.1u
100
IC600
1
EN
2
VFB
3
VREG5
4
SS
5
GND1
6
SW
7
VBST
8
VIN
9
GND2
+40V
+15V
+3.3V
+3.3V
+3.3V
R323A
1k
R324A
1k
R323B
1k
R324B
1k
+3.3V
R640
0
R641
0
R642
0
PG
R643
0
PG
PG
R623
NC
PG
+40V_OP
F600
125
2
C630
NC
PG
F601
125
2
J601
NC
J602
NC
FG3
R333B
0
R332B
0
R331B
NC
R330B
NC
C621
100p
100
C622
100p
100
C623
0.1u
50
DG
R637
0
C617
1u
100
C618
1u
100
R619
220
A
B
Power
FAN
300
600
DPT I/F
Low Active
Nomal:Low
Alarm:Open
.
1
1
KX-NS500 MOTHER BOARD No.6
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