Panasonic KX-TG9471CB, Руководство по обслуживанию

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KX-TG9471CB/KX-TG9472CB/KX-TGA939CB
2.2. About Lead Free Solder (Pbf: Pb free)
Note:
In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to standard solder or solder that
contains lead.
We will use PbF solder when discussing the lead free solder used in our manufacturing process which is made from Tin (Sn),
Silver (Ag), and Copper (Cu).
This model, and others like it, manufactured using lead free solder will have PbF stamped on the PCB. For service and repair
work we suggest using the same type of solder.
Caution
• PbF solder has a melting point that is 50
°
F ~ 70
°
F (30
°
C ~ 40
°
C) higher than Pb solder. Please use a soldering iron with
temperature control and adjust it to 700
°
F ± 20
°
F (370
°
C ± 10
°
C).
• Exercise care while using higher temperature soldering irons.:
Do not heat the PCB for too long time in order to prevent solder splash or damage to the PCB.
• PbF solder will tend to splash if it is heated much higher than its melting point, approximately 1100
°
F (600
°
C).
• When applying PbF solder to double layered boards, please check the component side for excess which may flow onto the
opposite side (See the figure below).
Component
Component
pin
Solder
Remove all of the
excess solder
(Slice View)