Panasonic KX-TCA256X Service Manual

Contents

4KX-TCA256X2 Warning2.1. 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 con-tains lead.We will use PbF 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 repairwork we suggest using the same type of solder.Caution• PbF solder has a melting point that is 50° ~ 70° F, (30° ~ 40°C) higher than Pb solder. Please use a soldering iron with tempera-ture control and adjust it to 700° ± 20° F, (370° ± 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 theopposite side (See figure, below).2.1.1. Suggested PbF SolderThere are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper(Sn+Ag+Cu), you can also use Tin and Copper (Sn+Cu) or Tin, Zinc, and Bismuth (Sn+Zn+Bi). Please check the manufacturer's specific instructions for the melting points of their products and any precautions for using their product with othermaterials.The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3mm, 0.6mm and 1.0mm.2.2. Battery Caution1. Danger of explosion if battery is incorrectly replaced.2. Replace only with the same or equivalent type recommended by the manufacturer.3. Dispose of used batteries according to the manufacture's Instructions.