DOWNLOAD Panasonic KX-A406CE / KX-A406UK / KX-A406AL Service Manual ↓ Size: 924.51 KB | Pages: 31 in PDF or view online for FREE

21

• 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 someone with less 
experience could overheat and damage the PCB foil.

• Hot Air Desoldering Tool

Temperature: 608 

F ± 68 F (320 C ± 20 C)

• To replace the IC efficiently, choose the right sized nozzle of the hot air desoldering tool that matches the IC package.
• Be careful about the temperature of the hot air desoldering tool not to damage the PCB and/or IC.

1. Heat the IC with a hot air desoldering tool through the

P.C.Board.

2. Pick up the IC with tweezers, etc. when the solder is

melted completely.
Note:

• Be careful not to touch the peripheral parts with twee-

zers, etc. They are unstable. 

3. After removing the IC, clean the P.C.Board of residual sol-

der.

1. Place the solder a little on the land where the radiation

GND pad on IC bottom is to be attached.

2. Place the solder a little on the land where IC pins are to

be attached, then place the IC.
Note:

• When placing the IC, the positioning should be done very

carefully.

3. Heat the IC with a hot air desoldering tool through the

P.C.Board until the solder on IC bottom is melted.
Note:

• Be sure to place it precisely, controlling the air volume of

the hot air desoldering tool.

4. After soldering, confirm there are no short and open cir-

cuits with visual inspection.

22

When a Solder Bridge is found after soldering the bottom of the IC, remove it with a soldering iron.

23

24

1. DC voltage measurements are taken with voltmeter from the negative voltage line.

2. The schematic diagrams may be modified at any time with the development of new technology.