Panasonic TH-42PWD8WK, Service Manual, Page: 11 / 398

4. Use only an anti-static solder removal device. Some solder removal devices not
classified as "anti-static (ESD protected)" can generate electrical charge
sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges
sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until
immediately before you are ready to install it. (Most replacement ES devices are
packaged with leads electrically shorted together by conductive foam, alminum
foil or comparable conductive material).
7. Immediately before removing the protective material from the leads of a
replacement ES device, touch the protective material to the chassis or circuit
assembly into which the device will be installed.
Caution
Be sure no power is applied to the chassis or circuit, and observe all other safety
precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices.
(Otherwise hamless motion such as the brushing together of your clothes fabric
or the lifting of your foot from a carpeted floor can generate static electricity
(ESD) sufficient to damage an ES device).
4. About lead free solder (PbF)
Note: Lead is listed as (Pb) in the periodic table of elements.
In the information below, Pb will refer to Lead solder, and PbF will refer to Lead
Free Solder.
The Lead Free Solder used in our manufacturing process and discussed below is
(Sn+Ag+Cu).
That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.
This model uses Pb Free solder in it’s manufacture due to environmental
conservation issues. For service and repair work, we’d suggest the use of Pb free
solder as well, although Pb solder may be used.
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