Read Panasonic KX-NCP1170XJ (serv.man2) Service Manual online
6
KX-NCP1170XJ
5 Technical Descriptions
5.1.
Block Diagram
KX-NCP1
170XJ BLOCK DIAGRAM
BACK BOARD
C
u
rr
ent
Li
mi
tter
+5
V
Dr
iv
e
r
&
Re
c
e
iv
e
r
+3
.3
V
PO
W
E
R
SEL
Pu
ls
e
T
rans
for
m
e
r
Se
rg
e
EM
C
+
40V
+1
5
VPT
P
o
rt#1
PT
I
/F
DR[0]
DT
H[0]
D
T
L[0]
D1
A
D1
B
P
T
CUR[O
]
PT
PO
W
[O
]
Se
rg
e
EM
C
TA
RA
Be
ll R
e
la
y
O
PEAM
P
D
C
F
eedi
ng(
+
40V
)
DC F
eedi
ng(
G
N
D
)
Hook-Det
&
Ri
ngtr
ip-Det
Be
ll
Re
la
y
Dr
iv
e
r
DT
M
F
RE
C
1/4
P
o
rt#2
P
o
rt#3
P
o
rt#4
S
a
m
e
as"Port#1".
SLT I
/F
nT
O
E
[0
]
ST
D
[0
]
n
H
OOK
[0
]
B
E
LL[
0]
DO
UT
DI
N
DCL
K
CS
DRA
DRB DX
A
DX
B
PC
L
K
MC
L
K
nR
E
S
+1
5
VPT
+
15V
+
40V
H
W
C
L
K([
1
]
CP
[0
]
nC
S
[1
]
V
R
EF
+
V
R
EF-
nB
R
E
Q
nB
A
C
K
L_n
R
S
T
nW
R
nR
D
LA
[12:
0]
L
D
[7
:0
]
M
O
D
E
[5
:0
]
P
O
[7
:0
]
n
R
ESET
P
LLC
LK
nA
LE
DI
N
DO
UT
DCL
K
C_
CS
[0
]
FH
HW
C
L
K
[0
]
LD
H
W
[0
]
LU
H
W
[0
]
P
3
[3
:0
]
P
4
[3
:0
]
P
5
[3
:0
]
P
2
[5
:4
]
RX[
3
:0
]
E
C
_C
LK
E
C
_A
D
[15:
0
]
EC
_
P
A
R
EC
_
F
R
A
M
E
E
C
_
T
RDY
EC
_
S
T
O
P
EC
_
BE[
1
:0
]
EC
_
PER
R
EC
_
IN
T
EC
_
ID
SEL
EC
_
N
R
S
T
CT
_
N
E
T
RE
F
CT
_
F
RA
M
E
_
A
C
T
_C
8_A
C
T
_
D
[7
:0
]
On-B
oar
d
R
inger
nW
R
nR
D
nC
S
A
[16:
0]
D
[7:
0]
1M
IC202
RAM
CP
[0
]
A
[4:
0]
D
[7:
0]
IC600
ASI
C
(C
ID
)
nW
R
nR
D
nR
E
S
VR
E
F
CO
NT
nR
E
S
J
U
M
PER
R
ESET IC
IC106
XT
A
L
16.
38
4
MH
z
LA
T
C
H
A
[0:
4]
A
[13:
1
7
]
J
U
M
PER
TDE[
3
:0
]
D
T
L[
3:
0]
nC
S
2
R
inger
(
75V
rm
s
)
C_
CS
[0
]
DH
W
[0
]
IC300
CO
DE
C
PEB
2466
IC100
ASI
C
(T
ACKER)
D [
3
:0
]
UH
W
[0
]
CL
K
FS
C
FH
R
ESET
EC
_
D
ET
C
T
_
C
B_
A
RI
N
G
E
R
HW
C
L
K
HW
C
L
K
NC
S
1
HW
C
P
NW
R
NR
S
T
NR
D
UH
W
[1
]
nC
S
[1
]
XT
AL
4.096MH
z
UH
W
D
P
T
_
P
O
W
[3
:0
]
DR[
3
:0
]
P
1
[3
:0
]
D
T
H
[3:
0]
nCS-D
M
A
DR
IV
E
R
DR
IV
E
R
P2
2
P2
3
+3
.3
V
DR[
1
]
DT
H
[1
]
D
T
L[
1]
PT
_
P
O
W
[1
]
PT
_
C
U
R
[1
]
ST
D
[1
]
D
[3:
0]
D
[3:
0]
n
H
OOK
[1
]
B
E
LL[
1]
DR[
2
]
DT
H
[2
]
D
T
L[
2]
PT
_
P
O
W
[2
]
PT
_
C
U
R
[2
]
ST
D
[2
]
D
[3:
0]
n
H
OOK
[2
]
B
E
LL[
2]
DR[
3
]
DT
H
[3
]
D
T
L[
3]
PT
_
P
O
W
[3
]
PT
_
C
U
R
[3
]
ST
D
[3
]
D
[3:
0]
n
H
OOK
[3
]
B
E
LL[
3]
D
R
[3:
0
]
D
T
H
[3:
0]
D
T
L[
3:
0]
P2
0
MO
D
E
4
P
O
[7
:0
]
J
U
M
PER
8
DC
/D
C
DC
/D
C
DC
/D
C
DC
/D
C
+
40V
+
15V
20H
z
/25H
z
S
ignal
P
5
[7
:4
]
P
T
_
C
U
R
[3
:0
]
+2.5V
DC
/D
C
DC
/D
C
S
a
m
e
as"Port#1".
S
a
m
e
as"Port#1".
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