Read Panasonic KX-NS5170XSX / KX-NS5170X-SX Service Manual online
11
KX-NS5170X/KX-NS5170SX
• DTMF Signal Detection
Each port has its own DTMF receiver in the code.
Detection of DTMF signal by codec transmits this data to the CPU board via the PLD.
Via the PLD, CPU board reads the DTMF signal which is received in the codec.
Detection of DTMF signal by codec transmits this data to the CPU board via the PLD.
Via the PLD, CPU board reads the DTMF signal which is received in the codec.
• Power Supply to Tip/Ring
Voltage and current generated by the SLIC is supplied to the phones.
Preset voltage is -26V (On-hook).
Current is set as 26mA (Off-hook).
Preset voltage is -26V (On-hook).
Current is set as 26mA (Off-hook).
LUHW1
HW_CLK[0]
nC_INT[0]
nC_INT[0]
HW_FH[0]
LDHW
C
2
1
6
B
R
2
0
2
B
DG
+3.3V
C
2
09
A
Q200A
C
2
14
A
R213A
Q200B
R210A
R201A
R212A
TP1
R
2
03B
R206A
+3.3V
DG
DG
DG
FG
R
2
1
7A
R205A
C
2
0
6A
R
2
18
A
DG
+40V
+40V
DG
DG
C204B
C
2
13
A
R211A
+3.3V
R200A
C
2
1
6A
R214A
DG
DG
R
2
04
A
DG
R
2
15
A
C
2
01
A
LUHW1
C
2
0
2A
R208A
L201B
C
2
05B
C211A
C
2
0
6
B
HW_CLK[0]
L201A
C
2
15
A
TP2
+40V
R207A
C212A
LDHW
C
2
03
A
C
2
13B
D
2
00
A
DG
R211B
L200B
R210B
C208A
D
2
00B
R205B
C
2
00
A
C204A
C
2
05
A
C210A
nRST_SLIC
L200A
R
2
03
A
C207A
R216A
R209A
IC200A
3
GPIO
2A
/S
RINGC
A
4
GPIO1
A
/S
TIPC
A
5
S
RINGDC
A
6
S
RING
A
C
A
7
S
TIP
A
C
A
8
S
TIPDC
A
9
C
A
PP
A
10
C
A
PM
A
11
SV
B
A
T
A
DTX
DRX
SDCHA
SDCLA
DCDRVA
DCFFA
DCFFB
DCDRVB
SDCLB
DRX
SDCHA
SDCLA
DCDRVA
DCFFA
DCFFB
DCDRVB
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
S
T
14
INTB/DT
X
ENB
SDITHRU
PCLK
SDCHB
VDDD
VDDREG
VDDD
VDDREG
31
S
CLK
3
2
S
DO
4
2
GPIO1B/
S
TIPCB
43
GPIO
2
B/
S
RINGCB
44
V
DD
A
46
TIPB
47
NC3
57
VBATA
58
NC8
59
RINGA
15
F
SY
NC
18
19
20
21
22
23
24
25
26
19
20
21
22
23
24
25
26
16
17
17
27
28
29
30
28
29
30
CSB
45
NC
2
60
NC9
61
EPAD1
62
EPAD2
HW_FH[0]
C210B
R
2
0
2A
nC_INT[0]
D201A
D201B
TIP_A
RING_A
D
2
0
2A
D
2
03
A
B
A
R
2
04B
DTMF
Signal
Audio Codec
PCM I/F
SPI I/F
DSP
0V
TIP
RING
-26V
nC_INT[0]
DG
+3.3V
Q200A
R213A
R210A
R201A
R212A
TP1
R206A
DG
DG
DG
FG
R205A
C
2
0
6A
+40V
+40V
DG
C204B
C
2
13
A
R211A
+3.3V
R200A
R214A
DG
R
2
04
A
C
2
01
A
C
2
0
2A
R208A
L201B
C211A
L201A
TP2
R207A
C212A
C
2
03
A
D
2
00
A
R211B
L200B
R210B
C208A
C
2
00
A
C204A
C
2
05
A
C210A
L200A
R
2
03
A
C207A
R216A
R209A
IC200A
7
8
S
TIPDC
A
9
C
A
PP
A
10
C
A
PM
A
11
SV
B
A
T
A
DTX
DRX
SDCHA
SDCLA
DCDRVA
DCFFA
DCFFB
DCDRVB
SDCLB
DRX
SDCHA
SDCLA
DCDRVA
DCFFA
DCFFB
DCDRVB
SDCLB
T
B
B
B
CB
1
2
SV
DC
13
*R
S
T
14
INTB/DT
X
ENB
SDITHRU
PCLK
PCLK
SDCHB
VDDD
VDDREG
VDDD
VDDREG
15
F
SY
NC
18
19
20
21
22
23
24
25
26
19
20
21
22
23
24
25
26
16
17
17
27
28
29
30
28
29
30
CSB
EPAD2
C210B
R
2
0
2A
TIP_A
RING_A
D
2
0
2A
D
2
03
A
B
A
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