DOWNLOAD Panasonic KX-NS520UC Service Manual ↓ Size: 12.57 MB | Pages: 127 in PDF or view online for FREE

Model
KX-NS520UC
Pages
127
Size
12.57 MB
Type
PDF
Document
Service Manual
Brand
Device
PBX / EXPANSION UNIT
File
kx-ns520uc.pdf
Date
PREV: Panasonic KX-NS520RU (serv.man2) Service Manual

Panasonic KX-NS520UC Service Manual ▷ View online

53
KX-NS520UC
C
E
B
A
D
F
8
7
11
10
9
G
H
12
nRST_SLIC
LUHW[0]
HW_FH[0]
HW_CLK[0]
LDHW[0]
LDHW[0]
HW_CLK[0]
LUHW[0]
HW_FH[0]
nRST_SLIC
nSLIC_INT[6]
nSLIC_INT[7]
C208N
0.01u
250
R206M
1kF
DG
D203M
12
C204N
0.22u
250
nSLIC_CS[6]
C207M
0.01u
250
C204M
0.22u
250
DG
C215M
10u 6.3
IC200M
3
GPIO2A/SRINGCA
4
GPIO1A/STIPCA
5
SRINGDCA
6
SRINGACA
7
STIPACA
8
STIPDCA
9
CAPPA
10
CAPMA
11
SVBATA
18
DTX
19
DRX
20
SDCHA
21
SDCLA
22
DCDRVA
23
DCFFA
24
DCFFB
25
DCDRVB
26
SDCLB
33
SDI
34
SVBATB
35
CAPMB
36
CAPPB
37
IREF
38
STIPDCB
39
STIPACB
40
SRINGACB
41
SRINGDCB
48
RINGB
49
NC4
50
VBATB
51
NC5
52
BASEB
53
NC6
54
BAT_PO
55
BASEA
56
NC7
1
TIPA
2
NC1
12
SVDC
13
*RST
14
INTB/DTXENB
16
SDITHRU
17
PCLK
27
SDCHB
28
VDDD
29
VDDREG
31
SCLK
32
SDO
42
GPIO1B/STIPCB
43
GPIO2B/SRINGCB
44
VDDA
46
TIPB
47
NC3
57
VBATA
58
NC8
59
RINGA
15
FSYNC
30
CSB
45
NC2
60
NC9
61
EPAD1
62
EPAD2
R210N
15
R208N
1kF
LDHW[0]
nSLIC_INT[6]
R202N
68k
DG
nRST_SLIC
R205M
0
R208M
1kF
C202N
0.022u
D203N
12
R201M
51
+40V
+40V
+3.3V
R201N
51
C207N
0.01u
250
G
D
G
F
R211M 1.65MF
DG
FG
C209M
0.1u 10
C201N
0.022u
+3.3V
R207M
681kF
R211N
1.65MF
C213N
0.1u
10
R217M
49.9kF
L201M 100u
C214M
0.1u 10
+40V
SLIC_CLK[1]
R209M
681kF
R205N
0
C210M
0.1u
C211M
0.1u
10
DG
L201N 100u
D200N
L200N 100u
R204N
0.62F
D200M
DG
SLIC_DOUT
D202M
1
2
R210M
15
R213M
0
DG
R202M
68k
R206N
1kF
R215M
56
C213M
0.1u
10
C216M
0.1u
250
HW_FH[0]
C202M
0.022u
R207N
681kF
D202N
1
2
R200M
51
DG
DG
C205M
0.1u
250
LUHW[0]
C203M
15u
63
R203M
0.62F
R204M
0.62F
DG
C208M
0.01u
250
DG
L200M 100u
R209N
681kF
R203N
0.62F
C205N
0.1u
250
DG
HW_CLK[0]
C216N
0.1u
250
DG
R200N
51
C201M
0.022u
R216M
C210N
0.1u
SLIC_DIN
nSLIC_INT[7]
+3.3V
L201O 100u
C202P
0.022u
C205P
0.1u
250
nSLIC_CS[7]
D200O
DG
R213O
0
R208P
1kF
C201O
0.022u
DG
DG
DG
L201P 100u
C210O
0.1u
FG
R211O 1.65MF
R215O
56
R204P
0.62F
FG
R216O
DG
DG
C213O
0.1u
10
R203O
0.62F
D200P
C208O
0.01u
250
C204P
0.22u
250
DG
R202P
68k
D203P
12
D202P
1
2
R210O
15
C207P
0.01u
250
R206P
1kF
R201P
51
C215O
10u
6.3
R204O
0.62F
C211O
0.1u
10
C201P
0.022u
R211P
1.65MF
R208O
1kF
HW_CLK[0]
LDHW[0]
DG
+40V
D203O
12
R207O
681kF
R209P
681kF
DG
C207O
0.01u
250
C216P
0.1u
250
DG
R200P
51
SLIC_CLK[1]
C204O
0.22u
250
C208P
0.01u
250
DG
HW_FH[0]
C203O
15u
63
R205O
0
C202O
0.022u
IC200O
3
GPIO2A/SRINGCA
4
GPIO1A/STIPCA
5
SRINGDCA
6
SRINGACA
7
STIPACA
8
STIPDCA
9
CAPPA
10
CAPMA
11
SVBATA
18
DTX
19
DRX
20
SDCHA
21
SDCLA
22
DCDRVA
23
DCFFA
24
DCFFB
25
DCDRVB
26
SDCLB
33
SDI
34
SVBATB
35
CAPMB
36
CAPPB
37
IREF
38
STIPDCB
39
STIPACB
40
SRINGACB
41
SRINGDCB
48
RINGB
49
NC4
50
VBATB
51
NC5
52
BASEB
53
NC6
54
BAT_PO
55
BASEA
56
NC7
1
TIPA
2
NC1
12
SVDC
13
*RST
14
INTB/DTXENB
16
SDITHRU
17
PCLK
27
SDCHB
28
VDDD
29
VDDREG
31
SCLK
32
SDO
42
GPIO1B/STIPCB
43
GPIO2B/SRINGCB
44
VDDA
46
TIPB
47
NC3
57
VBATA
58
NC8
59
RINGA
15
FSYNC
30
CSB
45
NC2
60
NC9
61
EPAD1
62
EPAD2
R209O
681kF
R206O
1kF
R210P
15
C205O
0.1u
250
R217O
49.9kF
C213P
0.1u
10
D202O
1
2
R207P
681kF
DG
C209O
0.1u 10
C210P
0.1u
DG
DG
+3.3V
R201O
51
+40V
R203P
0.62F
R205P
0
C214O
0.1u 10
SLIC_DIN
SLIC_DOUT
C216O
0.1u
250
+40V
R200O
51
nRST_SLIC
L200P 100u
R202O
68k
LUHW[0]
L200O 100u
JK200M
8
7
6
5
4
3
2
1
+3.3V
R214M
10k
+3.3V
R214O
10k
DG
DG
Q200M
Q200N
Q200O
Q200P
C206M
0.22u
250
C206N
0.22u
250
C206O
0.22u
250
C206P
0.22u
250
C200M
0.01u
250
C200N
0.01u
250
C200O
0.01u
250
C200P
0.01u
250
TP13
TP14
TP15
TP16
D201M
D201N
D201O
D201P
C212M
0.1u
C212O
0.1u
M
N
O
P
523kF
523kF
KX-NS520
8& MOTHER BOARD No.5  2/2
1
2
54
KX-NS520UC
12.1.6.
No.6
C
E
B
A
D
F
3
6
4
2
5
G
H
JK300A
NC
8
7
6
5
4
3
2
1
NC
T300A NC
1
2
4
5
6
7
10
9
8
R306A
22k
NC
R303A
100k
NC
R308A
10k
NC
R309A
10k
NC
R307A
56
NC
+3.3V
R305A
22k
NC
R300A
1M
NC
R310A
8.2
NC
+40V
ZNR301A
NC
DG
ZNR300A
NC
R301A
150k
NC
R304A
22k
NC
R302A
10k
NC
1
2
3
4
6
5
7
8
C301A
1u
10
NC
C300A
1u
50
R311A
22
NC
+3.3V
FG
Q300A
NC
B
E
C
PT_POWA
PT_CURA
R602
47k
R605
33k
R604
10k
Q600
5
4
3
D601
C600
0.47u 50
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
R606
10k
CF601
CF600
R600
1k
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
+40V
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
R309B
10k
NC
U302B
NC
2
6
1
R302B
10k
NC
1
2
3
4
6
5
7
8
T300B NC
1
2
4
5
6
7
10
9
8
U302B
NC
5
3
4
R310B
8.2
NC
C306B 0.1u
16
NC
R305B
22k
NC
FG
NC
R301B
150k
NC
R307B
56
NC
+40V
PT_POWB
C300B
1u
50
C301B
1u
10
NC
PT_CURB
+3.3V
R311B
22
NC
Q300B
NC
B
E
C
R308B
10k
NC
R300B
1M
NC
+3.3V
R306B
22k
NC
U301B
NC
2
6
1
ZNR301B
NC
R304B
22k
NC
ZNR300B
NC
DG
R303B
100k
NC
D300B
NC
D300A
NC
D301A
NC
D301B
NC
C614
0.1u
50
C611
0.1u
50
R603
47k
R611
62
NC
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
+15V
D303
NC
KX-NS520
8& MOTHER BOARD NO.6  1/2
1
2
+40V
R619
33
+40V_OP
DG
C617
2.2u
100
NC
DG
C618
2.2u
100
NC
C619
0.1u
100
NC
C620
0.1u
100
NC
+40V
+15V
R643
0
+40V_OP
F600
125
2
F601
125
2
J601
NC
A
B
Power
FAN
300~
600~
DPT I/F
Low Active
Nomal:Low
Alarm:Open
(3)
(4)
(5)
(6)
(1)
(2)
55
KX-NS520UC
+
-
+
-
+
-
+
-
C
E
B
A
D
F
6
8
7
10
9
G
PT_TXA[0]
SIGN2931
PT_TXA[1]
PT_RXA[0]
PT_RXA[1]
PT_RXB[0]
PT_RXB[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
C303A
1u
16
NC
R317A
1.5k
NC
DG
R316A
910
NC
R314A
22
NC
R315A
910
NC
R319A
2.2k
NC
R322A
2.2k
NC
NC
NC
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
C608
22u 6.3
C601
10u
25
+3.3V
C606
3300p
50
L600
2.2u
C605
1u
16
C604
NC
C609 22u
6.3
R609
10k
R607
73.2k
C602
10u
25
PG
PG
PG
DG
C304A
1000p
50
NC
C305A
1000p
50
NC
U303A NC
1
2
KX-NS520
8& MOTHER BOARD NO.6 2/2
2
6
1
U303A
NC
5
3
4
C302A
1u
16
NC
R313A
22
NC
R314B
22
NC
C302B
1u
16
NC
C304B
1000p
50
NC
C305B
1000p
50
NC
R313B
22
NC
R317B
1.5k
NC
R312B
270
C303B
1u
16
NC
DG
R316B
910
NC
U303B NC
2
6
1
R318B
1.5k
NC
DG
R315B
910
NC
R319B
2.2k
NC
U303B NC
5
3
4
R322B
2.2k
NC
C603 0.1u
50
NC
C607
0.1u
50
+3.3V
PG
R621
0
R622
0
PG
DG
R636
0
IC600
1 EN
2 VFB
3 VREG5
4 SS
5
GND1
6
SW
7
VBST
8
VIN
9
GND2
+3.3V
+3.3V
+3.3V
R323A
1k
NC
R324A
1k
NC
R323B
1k
NC
R324B
1k
NC
+3.3V
R640
0
R641
0
R642
0
PG
PG
PG
R623
NC
PG
C630
NC
PG
. 
(3)
(4)
(5)
(6)
(1)
(2)
56
KX-NS520UC
12.1.7.
No.7
KX-NS520
8& MOTHER BOARD No.7  1/3
1
2
3
C
E
B
A
D
F
3
4
2
5
G
H
nINT_EXT_OP[1]
PR_SET
nCS_CO_OP[1]
L_A[0-22]
BUF_EXT_D[0-7]
L_A[7]
L_A[6]
L_A[5]
L_A[4]
L_A[10]
L_A[8]
L_A[11]
L_A[9]
L_A[3]
L_A[2]
L_A[1]
L_A[0]
BUF_EXT_D[3]
BUF_EXT_D[2]
BUF_EXT_D[1]
BUF_EXT_D[0]
BUF_CO_D[4]
BUF_CO_D[5]
BUF_CO_D[6]
BUF_CO_D[7]
nINT_CO[1]
nINT_CO[1]
HW_CLK[2-6]
nHW_FH[2-6]
LDHW[2]
HW_CLK[2]
HW_CLK[3]
nHW_FH[2]
nHW_FH[3]
HW_CLK[6]
HW_CLK[5]
nHW_FH[4]
L_D[3]
L_D[2]
L_D[1]
L_D[0]
L_D[7]
L_D[6]
L_D[5]
L_D[4]
BUF_CO_D[0]
BUF_CO_D[1]
BUF_CO_D[2]
BUF_CO_D[3]
BUF_CO_D[4]
BUF_CO_D[5]
BUF_CO_D[6]
BUF_CO_D[7]
L_D[3]
L_D[2]
L_D[1]
L_D[0]
L_D[7]
L_D[6]
L_D[5]
L_D[4]
RLY_RESET
nHALT
RING_SYNC
LUHW[2]
nREAD
FAN_ALM
BUF_CO_D[0]
BUF_CO_D[1]
BUF_CO_D[2]
BUF_CO_D[3]
BUF_CO_D[4]
BUF_CO_D[5]
BUF_CO_D[6]
BUF_CO_D[7]
BUF_EXT_D[0]
BUF_EXT_D[1]
BUF_EXT_D[2]
BUF_EXT_D[3]
BUF_EXT_D[4]
BUF_EXT_D[5]
BUF_EXT_D[6]
BUF_EXT_D[7]
BUF_EXT_D[4]
BUF_EXT_D[5]
BUF_EXT_D[6]
BUF_EXT_D[7]
BUF_EXT_D[0]
BUF_EXT_D[1]
BUF_EXT_D[2]
BUF_EXT_D[3]
L_A[0]
L_A[1]
L_A[2]
L_A[3]
BUF_CO_D[3]
BUF_CO_D[2]
BUF_CO_D[1]
BUF_CO_D[0]
LDHW[4]
LDHW[3]
nHW_FH[5]
HW_CLK[4]
nHW_FH[6]
LUHW[3]
LUHW[4]
BUF_EXT_D[4]
BUF_EXT_D[5]
BUF_EXT_D[6]
BUF_EXT_D[7]
L_A[7]
L_A[6]
L_A[5]
L_A[4]
L_A[9]
L_A[8]
L_A[10]
nCS_EXT_OP[1]
nCO_PLD_WAIT
nINT_CO[0]
nRST_EXT_OP[1]
nRST_CO_OP[1]
DG
D404
D401
R400
330
+3.3V
D400
1
2
3
+15V
R402   10k
RL200C
1
12
Q402
R404  270
R411
10k
DG
RL200B
1
12
Q405
R409    100k
+3.3V
RL200A
1
12
R401
10k
Q403
Q400
B
C
E
R410   2.7k
R405   10k
Q401
D402
DG
DG
D403
1
2
3
R4083  30
R403   270
R406   10k
nCS_DSPG[0]
nCS_DSPG[1]
nCS_DSPG[2]
DSPG_INT[0]
DSPG_INT[1]
DSPG_INT[2]
FAN_ALM
BELL[0-5]
REVDET[0-5]
HW_FH[1]
HW_CLK[1]
LDHW[1]
PT_CURA
PT_POWA
PT_POWB
PT_CURB
R463
10k
+3.3V
R462
10k
R454 10
R455   10
R456    10
R457    10
R458    10
R459    10
R431   10
R432   10
R433   10
R434   10
R435   10
R436   10
+3.3V
DG
+40V_OP
+3.3V
+15V
R445    10
R446    10
R447    10
R448    10
R449    10
R450    10
R451   10 NC
R452    10
R419    10
R418    10
R423   10
R426   10
R422   10
R424   10
R425   10
nRST_SLIC
DG
R412
10k
Q406
R413
330
IC402
1
DIR
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
11 B8
12 B7
13 B6
14 B5
15 B4
16 B3
17 B2
18 B1
19
*OE
IC402
10
GND
20
VCC
R46610
1
2
3
4
6
5
5
7
8
R465 10
1
2
3
4
6
7
8
R468    10
1
2
3
4
6
7
8
IC403
10
GND
20
VCC
IC403
1
DIR
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
11
B8
12
B7
13
B6
14
B5
15
B4
16
B3
17
B2
18
B1
19
*OE
R467 10
1
2
3
4
6
5
7
8
nRST_CO
C403
0.1u
10
DG
+3.3V
+3.3V
C400
0.1u
10
DG
R420
10
1
2
3
4
5
6
7
8
R440
10
1
2
3
4
6
5
7
8
R442
10
1
2
3
4
5
5
6
7
8
R444
10
1
2
3
4
6
7
8
R430
10
1
2
3
4
5
6
7
8
R437
10
1
2
3
4
5
6
7
8
DG
DG
DG
R461    10
R460    10
AC_ALM
R464
2.2k
DG
DG
R415
2.2k
R414
10k
+3.3V
R417
10k
+3.3V
R416
10k
RL200D
1
12
nREAD
nWRITE
CN400 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
22
23
24
25
26
27
28
29
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400
CN400 30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
30
31
CN400
CN400
32
CN400
33
CN400
34
CN400
35
CN400
36
CN400
37
CN400
38
CN400
39
CN400
40
CN400
41
CN400
42
CN400
43
CN400
44
CN400
45
CN400
46
CN400
47
CN400
48
CN400
49
CN400
50
CN400
51
CN400
52
CN400
53
CN400
54
CN400
55
CN400
56
CN400
57
CN400
58
CN400
59
CN400
60
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
CN401
31
CN401
CN401
32
CN401
33
CN401
34
CN401
35
CN401
36
CN401
37
CN401
38
CN401
39
CN401
40
CN401
41
CN401
42
CN401
43
CN401
44
CN401
45
CN401
46
CN401
47
CN401
48
CN401
49
CN401
50
CN401
51
CN401
52
CN401
53
CN401
54
CN401
55
CN401
56
CN401
57
CN401
58
CN401
59
CN401
60
R579    0
NC
R580
10k
1
2
3
4
5
5
6
7
8
R581
10k
1
2
3
4
6
7
8
+3.3V
R583
10k
1
2
3
4
6
7
8
R582
10k
1
2
3
4
6
5
5
5
7
8
+3.3V
R421
10
1
2
3
4
5
6
7
8
R439
10
1
2
3
4
5
6
7
8
R438
10
R453 10
R427
10
1
2
3
4
5
6
7
8
R441
10
1
2
3
4
5
6
7
8
R429
10
1
2
3
4
5
6
7
8
R443
10
1
2
3
4
5
6
7
8
R428 10
DG
R585
2.2k
DG
R584
2.2k
DG
R589  10k
NC
+3.3V
R588   10k
NC
+3.3V
R587  2.2k
C401
1000p
25
NC
C437
10u   6.3
DG
C439
DG
C438
10u
25
DG
C440
C441  NC
DG
C442
1000p
25
DG
C443
1000p
25
DG
C444
1000p
25
DG
C445
1000p
25
DG
C446
10u
25
DG
C447
10u
25
DG
C448
DG
C449
2.2u    100
2.2u  100
C450
10u
25
DG
C455
10u  6.3
10u  6.3
10u  6.3
DG
CO
EXT
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
A[4]
A[5]
A[6]
A[7]
A[3]
A[2]
A[1]
A[0]
LDHW[2]
HW_CLK[2]
nHW_FH[2]
LUHW[2]
HW_CLK[3]
nHW_FH[3]
A[7]
A[6]
A[5]
A[4]
A[10]
A[8]
A[0]
A[1]
A[2]
A[3]
A[9]
D[0]
D[7]
D[1]
D[6]
D[2]
D[5]
D[3]
D[4]
A[9]
A[8]A[10]
A[11]
nRST[1]
nINT[1]
nRST[0]
nINT[0]
nCS[1]
nREAD
nCS[0]
nWRITE
nWAIT
nHALT
RING_SYNC
nCS[1]nCS[0]
nREADnWRITE
nWAITnRST[0]
nRST[1]
nINT[0]
nINT[1]
NETREF
HW_CLK[5]
HW_CLK[6]
nHW_FH[6]
nHW_FH[4]
LDHW[4]
LDHW[3]
HW_CLK[4]
nHW_FH[5]
LUHW[4]
LUHW[3]
(1)
(2)
(3)
(4)
(5)
(6)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
(24)
(26)
(25)
(27)
(28)
(29)
(30)
(31)
(32)
(34)
(33)
(35)
(36)
(37)
(38)
(39)
(40)
(41)
(42)
(43)
(44)
(45)
(46)
(47)
(48)
(49)
(50)
(51)
(52)
(53)
(54)
(55)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
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