Panasonic TH-103PF10EK, Service Manual

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TH-103PF10UK/EK
Note: Lead is listed as (Pb) in the periodic table o f elements.
In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder.
The Lead Free S older used in our m anufacturing process and discussed below is (Sn+Ag+Cu).
T hat is Tin (Sn), Silver (Ag) and C opper (Cu) although other types are available.
2.2. About lead free solder (PbF)
This model uses Pb Free solder in it’s manufacture due to environmental conservation issues. For service and repair work, w e ’d
suggest the use of Pb free solder as well, although Pb solder may be used.
PCBs manufactured using lead free solder will have the PbF within a leaf Symbol PbF stamped on the back of PCB.
Caution
• Pb free solder has a higher melting point than standard solder. Typically the melting point is 50 ~ 70 °F (30~40 °C) higher. Please
use a high tem perature soldering iron and set it to 700 ± 20 °F (370 ± 10 °C).
• Pb free solder will tend to splash when heated too high (about 1100 °F or 600 °C).
If you must use Pb solder, please completely remove all of the Pb free solder on the pins or solder area before applying Pb sol­
der. If this is not practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.
• After applying PbF solder to double layered boards, please check the com ponent side for excess solder which may flow onto the
opposite side. (see figure below)
Suggested Pb free solder
There are several kinds of Pb free solder available fo r purchase. This product uses Sn+Ag+Cu (tin, silver, copper) solder. How­
ever, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also be used.
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