DOWNLOAD Panasonic KX-NS5170XSX / KX-NS5170X-SX Service Manual ↓ Size: 3 MB | Pages: 53 in PDF or view online for FREE

Model
KX-NS5170XSX KX-NS5170X-SX
Pages
53
Size
3 MB
Type
PDF
Document
Service Manual
Brand
Device
PBX / 4-PORT DIGITAL HYBRID EXTENSION CARD
File
kx-ns5170xsx-kx-ns5170x-sx.pdf
Date
PREV: Panasonic KX-NS5170X / KX-NS5170SX Service Manual / Supplement

Panasonic KX-NS5170XSX / KX-NS5170X-SX Service Manual ▷ View online

17
KX-NS5170X/KX-NS5170SX
7 Installation Instructions
7.1.
Information about the Physical Extension Cards
7.1.1.
DHLC4 Card
Function
4-port digital hybrid extension card for DPTs, APTs, SLTs, DSS consoles, and PT-interface CSs.
Accessory and User-supplied ltems
Accessories (included): Spacer x 3, slot cover x 1
User-supplied (not included): RJ45 connector, Twisted pair cable
Pin Assignments
No.
Signal Name
Function
1
D1A
Data port 1 (low)
2
D2A
Data port 1 (High)
3
D1B
Data port 2 (Low)
4
TB
Tip  port  2
5
RB
Ring port 2
6
D2B
Data port 2 (High)
7
TA
Tip  port  1
8
RA
Ring port 1
18
KX-NS5170X/KX-NS5170SX
8 Troubleshooting Guide
The card doesn't work.
Check for short of the power supply.
(The power supply should be OFF.)
Check for short 
circuit of
F300,F301.
Short
OPEN
1
Replace F300,F301.
Check the test land
between [+15V] and
[GND].
Replace the defective parts.
Replace the defective parts.
NG
NG
NG
OK
OK
OK
Replace the defective parts.
Replace the defective parts.
NG
NG
NG
OK
OK
OK
Check the test land
between [+5V] and
[GND].
Check the soldering of
Q300,Q301,Q302,
IC304.
Check the soldering of
Q101A-D,Q100A-D
Check the soldering of
IC302.
Check the soldering of
T100A-D, C103A-D,
U105A-D.
19
KX-NS5170X/KX-NS5170SX
1
END
Replace the defective parts. 
Replace the defective parts.
NG
NG
NG
OK
OK
OK
Replace the defective parts.
Replace the defective parts.
NG
NG
NG
OK
OK
OK
Check the test land
between [+2.5] and
[GND].
Check the test land
between [+1.8] and
[GND].
Check the soldering of
IC301
Check the soldering of
IC404
Check the soldering of
IC300
Check the soldering of
IC404
20
KX-NS5170X/KX-NS5170SX
YES
YES
NO
YES
Is the dial tone 
heard?
Is the 
unit T76 series or 
DT series DPT?
NO
NO
Is the 
voltage between D1 
and D2:40V or 40V 
ON/OFF
DPT does not boot.
YES
NO
IIs the voltage 40V
YES
NO
Check the T100 
and U105.
YES
NO
Is VREF+ about 2V?
Is VREF- about 1.25V?
DPT is defective.
Replace IC401.
DPT is defective.
Replace the defective parts.
Replace Q400,IC401.
YES
NO
Does
PT_CUR switch 
ON/OFF?
YES
NO
Does PT_POW
switch ON/OFF?
Replace
IC401.
Check Q102,U102,U104,
U101,R112,R111,R116 
and the peripheral parts.
Then replace the 
defective parts.
YES
YES
Is the dial tone 
heard?
No
NO
Is the 
voltage between D1 
and D2:15V or 15V 
ON/OFF
YES
NO
Is the voltage 
15V
YES
NO
Check T100 
and U105.
YES
NO
Is VREF+ about 2V?
Is VREF- about 1.25V?
DPT is defective.
Replace IC401.
DPT is defective.
Replace the defective part.
Replace Q400,IC401.
YES
NO
Does PT_CUR
switch ON/OFF?
YES
NO
Does PT_POW
switch ON/OFF?
Check D100,Q100,Q101,
U103,U101,U100,R115 
and peripheral parts.
Then replace the 
defective parts.
Replace
IC401.
Replace
IC401.
Replace
IC401.
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