Read Panasonic KX-NS520RU / KX-NS520UC / KX-NS500RU / KX-NS500UC (serv.man2) Service Manual Supplement online
9
KX-NS500/520 Series
1.1.6.
No.6
KX-NS500BX MOTHER BOARD No.6
+
-
+
-
+
-
+
-
C
E
B
A
D
F
3
6
4
2
5
8
7
A
B
C
D
E
F
11
10
9
G
H
G
H
12
PT_TXA[0]
PT_TXA[1]
PT_RXA[0]
PT_RXA[1]
PT_RXB[0]
PT_RXB[1]
*JK300A
@NC
8
7
6
5
4
3
2
1
*IC300B
@NC
4
GND
8
VCC
+3.3V
*IC300A
@NC
4
GND
8
VCC
*R323
10k
@NC
*IC300B
@NC
5
6
7
*R324
5.1k
@NC
*IC300A
@NC
3
2
1
*C308
0.01u
16
@NC
*IC300B
@NC
3
2
1
*R325
10k
@NC
DG
*IC300A
@NC
5
6
7
DG
*R318A
1.5k
@NC
*R312A
270
@NC
*T300A
@NC
1
2
4
5
6
7
10
9
8
*R306A
22k
@NC
*R303A
100k
@NC
*C303A
1u
16
@NC
*R308A
10k
@NC
*R309A
10k
@NC
*R317A
1.5k
@NC
*R307A
56
@NC
+3.3V
DG
*R305A
22k
@NC
*R316A
910
@NC
*R300A
1M
@NC
*R310A
8.2
@NC
+40V
*ZNR301A
@NC
DG
*ZNR300A
@NC
*R314A
22
@NC
*R315A
910
@NC
*R301A
150k
@NC
*R304A
22k
@NC
*R302A
10k
@NC
1
2
3
45
6
7
8
*C301A
1u
10
@NC
*C300A
1u
50
@NC
+3.3V
FG
*Q300A
@NC
B
E
C
*R319A
2.2k
@NC
*R322A
2.2k
@NC
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
@NC
+3.3V
DG
+3.3V
DG
*C308A
0.1u
50
@NC
DG
PT_RXB[1]
PT_RXB[0]
R608
22.1k
R602
47k
C601
10u
25
+3.3V
C606
3300p
50
R605
33k
R604
10k
L600
2.2u
C605
1u
16
Q600
5
4
3
C604
NC
C600
0.47u
50
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
@NC
*C305A
1000p
50
@NC
*U303A
@NC
2
6
1
*U303A
@NC
5
3
4
*C302A
1u
16
@NC
*R313A
22
@NC
*U300AB
@NC
2
6
1
*U300AB
@NC
5
3
4
*U301A
@NC
2
6
1
*U301A
@NC
5
3
4
*U302A
@NC
2
6
1
*U302A
@NC
5
3
4
*C306A
0.1u
16
@NC
*U301B
@NC
5
3
4
*R314B
22
@NC
*R309B
10k
@NC
*U302B
@NC
2
6
1
*C302B
1u
16
@NC
*C304B
1000p
50
@NC
*R302B
10k
@NC
1
2
3
45
6
7
8
*T300B
@NC
1
2
4
5
6
7
10
9
8
*C305B
1000p
50
@NC
*R313B
22
@NC
*U302B
@NC
5
3
4
*R317B
1.5k
@NC
*R310B
8.2
@NC
*C306B
0.1u
16
@NC
*R305B
22k
@NC
FG
*R312B
270
@NC
*R301B
150k
@NC
*R307B
56
@NC
+40V
PT_POWB
*C300B
1u
50
@NC
*C303B
1u
16
@NC
*C301B
1u
10
@NC
PT_CURB
+3.3V
DG
*R316B
910
@NC
*U303B
@NC
2
6
1
*Q300B
@NC
B
E
C
*R308B
10k
@NC
*R318B
1.5k
@NC
DG
*R300B
1M
@NC
+3.3V
*R306B
22k
@NC
*U301B
@NC
2
6
1
*R315B
910
@NC
*ZNR301B
@NC
*R319B
2.2k
@NC
*U303B
@NC
5
3
4
*R304B
22k
@NC
*ZNR300B
@NC
DG
*R303B
100k
@NC
*R322B
2.2k
@NC
*D300B
@NC
*D300A
@NC
*D301A
@NC
*D301B
@NC
C614
0.1u
50
C611
0.1u
50
R603
47k
C603
0.1u
50
NC
C607
0.1u
50
R611
62
NC
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
+3.3V
+15V
*D303
@NC
+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
NC
J602
NC
FG3
*R333B
0
@NC
*R332B
0
@NC
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
L601
NC
J603
0
+3.3V_1
+3.3V_2
L602
330
L603
330
L604
330
*R311B
22
@NC
*R311A
22
@NC
C608
22u
6.3
C609
22u
6.3
A
B
Power
FAN
300
600
DPT I/F
Low Active
Nomal:Low
Alarm:Open
1
1
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