Panasonic KX-NS500UC (serv.man2) Service Manual ▷ View online
53
KX-NS500UC
8
7
11
10
9
12
C
E
B
A
D
F
G
H
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
D
2
03M
1
2
C204N
0.22u
250
nSLIC_CS[6]
C207M
0.01u
250
C204M
0.22u
250
DG
C
215M
10u 6
.3
IC200M
3
GPIO
2A
/S
RINGC
A
4
GPIO1
A/
STIPC
A
5
SRINGDC
A
6
SRING
AC
A
7
STIP
AC
A
8
STIPDC
A
9
CA
PP
A
10
CA
PM
A
11
SV
BA
TA
18
DTX
19
DRX
20
SDCHA
21
SDCLA
22
DCDRVA
23
DCFFA
24
DCFFB
25
DCDRVB
26
SDCLB
33
S
DI
34
SV
B
A
TB
35
C
A
PMB
3
6
C
A
PPB
3
7
IREF
38
S
TIPDCB
39
S
TIP
A
CB
40
S
RING
A
CB
41
S
RINGDCB
48
RINGB
49
NC4
50
VBATB
51
NC5
52
BASEB
53
NC6
54
BAT_PO
55
BASEA
56
NC7
1
TIP
A
2
NC1
1
2
SV
DC
13
*R
ST
14
INTB/DT
XENB
16
SDITHRU
17
PCLK
27
SDCHB
28
VDDD
29
VDDREG
31
S
CLK
3
2
S
DO
4
2
GPIO1B/
STIPCB
43
GPIO
2B/
SRINGCB
44
V
DD
A
46
TIPB
47
NC3
57
VBATA
58
NC8
59
RINGA
15
FSY
NC
30
CSB
45
NC
2
60
NC9
61
EPAD1
62
EPAD2
R210N
15
R208N
1kF
LDHW[0]
nSLIC_INT[6]
R
2
0
2
N
6
8
k
DG
nRST_SLIC
R205M
0
R208M
1kF
C
2
0
2
N
0.0
22
u
D
2
03N
1
2
R201M
51
+40V
+40V
+3.3V
R201N
51
C207N
0.01u
250
R211M
1.65MF
DG
FG
C
2
09M
0.1u 10
C
2
01N
0.0
22
u
+3.3V
R207M
681kF
R211N
1.65MF
C
2
13N
0.1u
10
R
21
7M
49.9
kF
L201M 100u
C
2
14M
0.1u 10
+40V
SLIC_CLK[1]
R209M
681kF
R205N
0
C210M
0.1u
C211M
0.1u
10
DG
L201N 100u
D
2
00N
L200N 100u
R2
04N
0.
62
F
D
2
00M
DG
SLIC_DOUT
D
2
0
2
M 1
2
R210M
15
R213M
0
DG
R
2
0
2
M
6
8
k
R206N
1kF
R
2
15M
5
6
C
2
13M 0.1u
10
C
2
1
6
M
0.1u
2
50
HW_FH[0]
C
2
0
2
M
0.0
22
u
R207N
681kF
D
2
0
2
N
1
2
R200M
51
DG
DG
C
2
05M
0.1u
2
50
LUHW[0]
C
2
03M
15u
63
R
203M
0.
62
F
R2
04M
0.62
F
DG
C208M
0.01u
250
DG
L200M 100u
R209N
681kF
R
2
03N
0.
62
F
C
2
05N
0.1u
2
50
DG
HW_CLK[0]
C
2
1
6
N
0.1u
2
50
DG
R200N
51
C
2
01M
0.0
22
u
R216M
C210N
0.1u
SLIC_DIN
nSLIC_INT[7]
+3.3V
L201O 100u
C
2
0
2
P
0.0
22
u
C
2
05P
0.1u
2
50
nSLIC_CS[7]
D
2
00O
DG
R213O 0
R208P
1kF
C
2
01O
0.0
22
u
DG
DG
DG
L201P 100u
C210O
0.1u
FG
R211O
1.65MF
R
2
15O
5
6
R2
04P
0.62
F
FG
R216O
DG
DG
C
2
13O 0.1u
10
R
2
03O
0.
62
F
D
2
00P
C208O
0.01u
250
C204P
0.22u
250
DG
R
2
0
2
P
6
8
k
D
2
03P
1
2
D
2
0
2
P 1
2
R210O
15
C207P
0.01u
250
R206P
1kF
R201P
51
C
215O
10u 6
.3
R2
04O
0.62
F
C211O
0.1u
10
C
2
01P
0.0
22
u
R211P
1.65MF
R208O
1kF
HW_CLK[0]
LDHW[0]
DG
+40V
D
2
03O
1
2
R207O
681kF
R209P
681kF
DG
C207O
0.01u
250
C
2
1
6
P
0.1u
2
50
DG
R200P
51
SLIC_CLK[1]
C204O
0.22u
250
C208P
0.01u
250
DG
HW_FH[0]
C
2
03O 15u
63
R205O
0
C
2
0
2
O
0.0
22
u
IC200O
3
GPIO
2A
/S
RINGC
A
4
GPIO1
A/
STIPC
A
5
SRINGDC
A
6
SRING
AC
A
7
STIP
AC
A
8
STIPDC
A
9
C
APP
A
10
C
APM
A
11
SV
BA
TA
18
DTX
19
DRX
20
SDCHA
21
SDCLA
22
DCDRVA
23
DCFFA
24
DCFFB
25
DCDRVB
26
SDCLB
33
S
DI
34
SV
B
A
TB
35
C
A
PMB
3
6
C
A
PPB
3
7
IREF
38
S
TIPDCB
39
S
TIP
A
CB
40
S
RING
A
CB
41
S
RINGDCB
48
RINGB
49
NC4
50
VBATB
51
NC5
52
BASEB
53
NC6
54
BAT_PO
55
BASEA
56
NC7
1
TIP
A
2
NC1
1
2
SV
DC
13
*R
ST
14
INTB/DT
XENB
16
SDITHRU
17
PCLK
27
SDCHB
28
VDDD
29
VDDREG
31
S
CLK
3
2
S
DO
4
2
GPIO1B/
STIPCB
43
GPIO
2B/
SRINGCB
44
V
DD
A
46
TIPB
47
NC3
57
VBATA
58
NC8
59
RINGA
15
FSY
NC
30
CSB
45
NC
2
60
NC9
61
EPAD1
62
EPAD2
R209O
681kF
R206O
1kF
R210P
15
C
2
05O
0.1u
2
50
R
21
7O
49.9
kF
C
2
13P
0.1u
10
D
2
0
2
O
1
2
R207P
681kF
DG
C
2
09O
0.1u 10
C210P
0.1u
DG
DG
+3.3V
R201O
51
+40V
R
2
03P
0.
62
F
R205P
0
C
2
14O
0.1u
10
SLIC_DIN
SLIC_DOUT
C
2
1
6
O
0.1u
2
50
+40V
R200O
51
nRST_SLIC
L200P 100u
R
2
0
2
O
6
8
k
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
C
2
0
6
M
0.
22
u
2
50
C
2
0
6
N
0.
22
u
2
50
C
2
0
6
O
0.
22
u
2
50
C
2
0
6
P
0.
22
u
2
50
C
2
00M
0.01u
2
50
C
2
00N
0.01u
2
50
C
2
00O
0.01u
2
50
C
2
00P
0.01u
2
50
TP13
TP14
TP15
TP16
D201M
D201N
D201O
D201P
C212M
0.1u
C212O
0.1u
M
N
O
P
DG
FG
523kF
523kF
1
2
KX-NS5008& MOTHER BOARD NO.5 2/2
54
KX-NS500UC
12.1.6.
No.6
C
E
B
A
D
F
3
6
4
2
5
G
H
JK300A
8
7
6
5
4
3
2
1
T300A
1
2
4
5
6
7
10
9
8
R30
6A
22k
R303A
100k
R308
A
10
k
R309
A
10
k
R30
7A
5
6
+3.3V
R305
A
22k
R300
A
1M
R310
A
8.
2
+40V
ZNR301
A
DG
ZNR300
A
R301
A
150
k
R304A
22k
R302A
10k
1
2
3
4
5
6
7
8
C301
A
1u
10
10
C300
A
1u
50
50
R311A
22
+3.3V
FG
Q300A
B
E
C
PT_POWA
PT_CURA
R602
47k
R605
33k
R604
10k
Q600
5
4
3
D601
C
6
00
0.4
7
u
50
D
6
00
5.13
CN601
1
2
3
2
3
Q600
2
6
1
R601
2.2k
CN600
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
R
6
0
6
10
k
CF601
CF600
R600
1k
Q601
1 S1
2 S2
3 S3
4 G
5
D1
6
D2
7
D3
8
D4
PG
C
6
10
10u
2
5
DG
R
61
2
10
k
+3.3V
D
6
0
2
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
C
6
1
2
1000p
50
C
6
13
1000p
50
DG
C615
0.1u
50
C616
0.1u
50
+15V
PG
+40V
U300AB
2
6
1
U300AB
5
3
4
U301A
2
6
1
U301A
5
3
4
U302A
2
6
1
U302A
5
3
4
C30
6A
0.1u 1
6
U301B
5
3
4
R309B
10
k
U302B
2
6
1
R302B
10k
1
2
3
4
5
6
7
7
8
T300B
1
2
4
5
6
7
10
9
8
U302B
5
3
4
R310B
8.
2
C30
6
B
0.1u 16
R305B
22k
FG
R301B
150
k
R30
7
B5
6
+40V
PT_POWB
C300B
1u
50
50
C301B
1u
10
PT_CURB
+3.3V
R311B
22
Q300B
B
E
C
R308B
10
k
R300B
1M
+3.3V
R30
6
B
22k
U301B
2
6
1
ZNR301B
R304B
22k
ZNR300B
DG
R303B
100k
D300B
D300
A
D301
A
D301B
C614
0.1u 50
C
6
11
0.1u
50
R603
47k
R611
62
NC
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
+15V
D303
+40V
R619
33
+40V_OP
DG
C
6
1
7
2.
2u
100
NC
DG
C
6
18
2.
2u
100
NC
C
6
19
0.1u
100
NC
C
62
0
0.1u
100
NC
+40V
+15V
R643
0
+40V_OP
F600
125
2
F601
125
2
J601
NC
A
B
Power
FAN
300 ~
DPT I/F
Low Active
Nomal:Low
Alarm:Open
KX-NS500UC MOTHER BOARD NO.6 1/2
600 ~
1
2
(1)
(2)
(3)
(4)
(5)
(6)
55
KX-NS500UC
+
-
+
-
+
-
+
-
C
E
B
A
D
F
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
4
GND
8
VCC
+3.3V
IC300A
4
GND
8
VCC
R3
231
0k
IC300B
5
6
7
R3
24
5.1
k
IC300A
3
2
1
C308
0.01u
16
IC300B
3
2
1
R3
2
51
0
k
DG
IC300A
5
6
7
DG
R318A
1.5k
R31
2A
27
0
C303A
1u
16
R317A
1.5k
DG
R316A
910
R314A
22
R315A
910
R319A
2.2k
R3
22A
2
.2k
PT_TXA[1]
PT_TXA[0]
PT_TXB[1]
PT_TXB[0]
PT_RXA[0]
PT_RXA[1]
C30
7A
0.1u 50
+3.3V
DG
+3.3V
DG
C308
A
0.1u 50
DG
PT_RXB[1]
PT_RXB[0]
R
6
08
22
.1
k
C
6
08
22
u
6
.3
C
6
01
10u
2
5
+3.3V
C
6
0
6
3300p 50
L600 2.2u
C
6
05
1u
1
6
C
6
04
NC
C
6
09
22
u
6
.3
R
6
09
10
k
R
60
77
3.
2k
C
6
0
2
10u
2
5
PG
PG
PG
DG
C304A
1000p
50
C305A
1000p
50
U303A
2
6
1
U303A
5
3
4
C302A
1u
16
R313A
22
R314B
22
C302B
1u
16
C304B
1000p
50
C305B
1000p
50
R313B
22
R317B
1.5k
R31
2
B
27
0
C303B
1u
16
DG
R316B
910
U303B
2
6
1
R318B
1.5k
DG
R315B
910
R319B
2.2k
U303B
5
3
4
R3
22
B
2
.2k
C
6
03
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
R3
23
A
1k
R3
24
A
1k
R3
23B
1k
R3
24B
1k
+3.3V
R640
0
R641
0
R642
0
PG
PG
PG
R
62
3
NC
PG
C
6
30
NC
PG
.
(1)
(2)
(3)
(4)
(5)
(6)
1
2
6
KX-NS5008&MOTHER BOARD NO.6 2/2
56
KX-NS500UC
12.1.7.
No.7
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[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[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[1]
BUF_CO_D[2]
BUF_CO_D[3]
BUF_CO_D[4]
BUF_CO_D[5]
BUF_CO_D[5]
BUF_CO_D[6]
BUF_CO_D[7]
BUF_EXT_D[0]
BUF_EXT_D[1]
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[5]
BUF_EXT_D[6]
BUF_EXT_D[7]
BUF_EXT_D[0]
BUF_EXT_D[1]
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[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
R40
2 10
k
RL200C
NC
1
12
Q402
R404 270
R411
10k
DG
RL200B
1
12
Q405
R409 100
k
+3.3V
RL200A
1
12
R401
10k
Q403
Q400
B
C
E
R410 2.7k
R405 10
k
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
R4
63
10
k
+3.3V
R4
62
10
k
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
R4
64
2.
2k
DG
DG
R415
2.
2k
R414
10k
+3.3V
R41
7
10
k
+3.3V
R41
6
10
k
RL200D
NC
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
R5
79 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 10
k
NC
+3.3V
R588 10
k
NC
+3.3V
R58
7
2.
2k
C401
1000p
25
NC
C43
7
10u
6.3
DG
C439
DG
C438
10u
25
DG
C440
C441 NC
DG
C44
2
1000p
25
25
DG
C443
1000p
25
25
DG
C444
1000p
25
DG
C445
1000p
25
DG
C44
6
10u
25
DG
C44
7
10u
25
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]
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)
(22)
(23)
(24)
(26)
(25)
(27)
(28)
(29)
(30)
(31)
(32)
(34)
(33)
(35)
(36)
(37)
(38)
(39)
(40)
(40)
(41)
(42)
(43)
(44)
(45)
(46)
(47)
(48)
(49)
(50)
(50)
(51)
(52)
(53)
(54)
(55)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(15)
(16)
KX-NS5008& MOTHER BOARD No.7 1/3
Click on the first or last page to see other KX-NS500UC (serv.man2) service manuals if exist.