DOWNLOAD Panasonic KX-NS5171XSX / KX-NS5172XSX Service Manual ↓ Size: 3.09 MB | Pages: 58 in PDF or view online for FREE

13

8-port or 16-port digital extension card for DPTs and PT-interface CSs.

Accessories (included): Spacer x 4, slot cover x 1
User-supplied (not included): RJ45 connector, Twisted pair cable

1

D1A

Data port 1 (Low)

2

D2A

Data port 1 (High)

3

D1B

Data port 2 (Low)

4

D1C

Data port 3 (Low)

5

D2C

Data port 3 (High)

6

D2B

Data port 2 (High)

7

D1D

Data port 4 (Low)

8

D2D

Data port 4 (High)

14

The card doesn't work.

Check for short of the power supply.

(The power supply should be OFF.)

Check for short 

circuit of

F100,F101.

Short

OPEN

Replace F100,F101.

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 [+1.2] and

[GND].

Check the soldering of

IC101

Check the soldering of

IC404

Check the soldering of

IC100

Check the soldering of

IC404

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16

Even if you do not have the special tools (for example, a spot heater) to remove the Flat IC, with some solder (large amount), a sol-
dering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.

• PbF (: Pb free) Solder
• Soldering Iron

Tip Temperature of 700

F ± 20F (370C ± 10C)

Note: We recommend a 30 to 40 Watt soldering iron. An
expert may be able to use a 60 to 80 Watt iron where some-
one with less experience could overheat and damage the
PCB foil.

• Flux

Recommended Flux: Specific Gravity 

 0.82.

Type 

 RMA (lower residue, non-cleaning type)

Note: See About Lead Free Solder (PbF: Pb free) (P.4).

1. Put plenty of solder on the IC pins so that the pins can be

completely covered.
Note:

If the IC pins are not soldered enough, you may give
pressure to the P.C. board when cutting the pins with
a cutter.

2. Make a few cuts into the joint (between the IC and its

pins) first and then cut off the pins thoroughly.

3. While the solder melts, remove it together with the IC

pins.

When you attach a new IC to the board, remove all solder
left on the land with some tools like a soldering wire. If some
solder is left at the joint on the board, the new IC will not be

attached properly.

1. Tack the flat pack IC to the PCB by temporarily soldering

two diagonally opposite pins in the correct positions on
the PCB.

Be certain each pin is located over the correct pad on the PCB.

2. Apply flux to all of the pins on the IC.

3. Being careful to not unsolder the tack points, slide the sol-

dering iron along the tips of the pins while feeding enough
solder to the tip so that it flows under the pins as they are
heated.

1. Add a small amount of solder to the bridged pins.
2. With a hot iron, use a sweeping motion along the flat part

of the pin to draw the solder from between the adjacent
pads.