Read Panasonic KX-NCP1174XJ (serv.man2) Service Manual online
6
KX-NCP1174XJ
5 Technical Descriptions
5.1.
Block Diagram
KX-NCP1
174XJ BLOCK DIAGRAM
DC
Fe
e
d
in
g(
+
3
0
V
)
Se
rg
e
EM
C
DC
Fe
e
d
in
g(
G
N
D)
H
ook
-
D
e
t
&
Ri
n
g
tr
ip
-D
e
t
Be
ll
R
e
lay D
ri
v
e
r
Tip
Ri
n
g
CH
_S
EL
FH
#H
OO
K0
BE
LL
0
+40
V
20H
z/
25
Hz
S
ig
n
a
l
IC14
Port#
1
nR
ES
ET
P2
6
P0
[7
:0
]
P4
[7
:0
]
TO
E[
15
:0
]
LD
[7
:0
]
F
H
,H
W
CLK
,D
HW,
UH
W
IC
1
DT
MF
RE
C
#T
OE
0
PF
RL
Y
HW
CL
K
DH
W
UH
W
IC
201
PEB
24
66
Ba
la
n
c
e
Ne
tw
o
rk
(BN)
S
a
m
e
a
s
"
P
o
rt#2".
S
a
m
e a
s
"
P
o
rt#2".
P
o
rt#3
Por
t#
4
S
a
m
e
a
s
"
P
o
rt#2".
IC
202
PEB
24
66
IC
250
PEB
24
66
IC
251
PEB
24
66
DI
N
DO
UT
C_
CS
[3
:0
]
DC
LK
nR
ST
On
-
Boa
rd
Rin
ger
Be
ll R
e
la
y
DC
Fe
ed
in
g
(+3
0V
)
Se
rg
e
EM
C
DC
Fe
e
d
in
g(
G
N
D)
H
ook
-
D
e
t
&
Ri
n
g
tr
ip
-D
e
t
Be
ll
R
e
lay D
ri
v
e
r
Tip
Ri
n
g
Port#
2
IC
1
DT
MF
RE
C
Ba
la
n
c
e
Ne
tw
o
rk
(BN)
Be
ll R
e
la
y
BE
LL
1
#H
OO
K1
S
a
m
e
a
s
"
P
o
rt#2".
S
a
m
e
a
s
"
P
o
rt#2".
+15
V
nR
ES
ET
nR
ES
ET
ST
D0
L
D[3:0]
ST
D1
#T
OE
1
DI
N
DO
UT
CS
[0
]
DC
LK
D
O
U
T
,DIN
,D
CLK
,C
S[
1]
D
O
U
T
,DIN
,D
CLK
,C
S[
2]
D
O
U
T
,DIN
,D
CLK
,C
S[
3]
Back Board
EC
_C
LK
nS
YS
TE_R
ST
EC
EC
_B
E[
1:
0
]
EC
_P
AR
EC
_F
RA
ME
EC
_T
RD
Y
EC
_S
TO
P
EC
_I
DS
EL
EC
_P
ER
R
EC
_I
NT
CT
_C
8_
A
CT
_D
[7
:0
]
UH
W
A
[5:
0]
D
[7:0
]
n
RD,
nWR
n
CS_
CID
+
2.5
V
n
RST
CP
0
H
WCL
K
+
2.5
V
+3
.3
V
+
15V
+
40V
+5
V
DC
/D
C
DC
/D
C
+2
.5
V
DC
/D
C
XT
AL
4.096MH
z
MO
D
E
4
J
U
M
PER
8
ASIC
(e
SA
M
S
O
N
)
M
O
D
E
[5
:0
]
P
O
[7
:0
]
n
R
ESET
P
LLC
LK
J
U
M
PER
R
ESET
IC
XT
A
L
16.
38
4
MH
z
J
U
M
PER
Be
ll SY
N
C
P
O
[7
:0
]
M
O
D
E
[3
:0
]
H
WCL
K[1
]
C
P[0
]
CP
1
L
A[1
2:0
]
L
D[7
:0]
n
RD,
nWR
n
RST
Se
rg
e
EM
C
H
o
o
k-Det &
Ringtrip-Det
Be
ll
R
e
lay D
ri
v
e
r
CH
_S
EL
FH
IC14
R
ing
er
(75V
rm
s
)
Port#
1
P2
6
P0
[7
:0
]
P4
[7
:0
]
IC
1
DT
MF
RE
C
HW
CL
K
DH
W
UH
W
IC
201
COD
EC
PEB
24
66
Ba
la
n
c
e
Ne
tw
o
rk
(BN)
S
a
m
e
a
s
"
P
o
rt#2".
S
a
m
e a
s
"
P
o
rt#2".
P
o
rt#3
Por
t#
4
S
a
m
e
a
s
"
P
o
rt#2".
P
o
rt#5
- #8
IC
202
COD
EC
PEB
24
66
P
o
rt#9 -
#12
IC
250
COD
EC
PEB
24
66
IC
251
COD
EC
PEB
24
66
DI
N
DO
UT
C_
CS
[3
:0
]
DC
LK
O
n
-Boa
rd
Rin
ger
Se
rg
e
EM
C
Be
ll
R
e
lay D
ri
v
e
r
Port#
2
IC
1
DT
MF
RE
C
Ba
la
n
c
e
Ne
tw
o
rk
(BN)
Be
ll R
e
la
y
S
a
m
e
a
s
"
P
o
rt#2".
S
a
m
e
a
s
"
P
o
rt#2"
.
Back Board
EC
_C
LK
nS
YS
TE
_R
ST
EC
_A
D[
15
:0
]
EC
_B
E[
1:
0
]
EC
_P
AR
EC
_F
RA
ME
EC
_T
RD
Y
EC
_S
TO
P
EC
_I
DS
EL
EC
_P
ER
R
EC
_I
NT
CT
_C
8_
A
CT
_F
RA
M
E
_
A
CT
_N
ET
R
E
F
CT
_D
[7
:0
]
IC70
0
DC
/D
C
DC
/D
C
DC
/D
C
DC
/D
C
+V
DC
/D
C
DC
/D
C
4
8
ASIC
(e
SA
M
S
O
N
)
ASIC
(CID)
M
O
D
E
[5
:0
]
P
O
[7
:0
]
n
R
ESET
P
LLC
LK
P
O
[7
:0
]
M
O
D
E
[3
:0
]
H
WCL
K[1
]
C
P[0
]
CP
1
L
A[1
2:0
]
L
D[7
:0]
n
RD,
nWR
n
RST
DC Feeding (GND)
DC Feeding (+30V)
DC Feeding (GND)
DC Feeding (+30V)
H
o
o
k-Det &
Ringtrip-Det
L
D[3:0]
Port#13 - #16
Click on the first or last page to see other KX-NCP1174XJ (serv.man2) service manuals if exist.