Panasonic TX-P42GT60B, Service Manual

4

2 Warning

2.1.

Prevention of Electrostatic Discharge (ESD) to Electrostatically 
Sensitive (ES) Devices

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called 
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and 
semiconductor [chip] components. The following techniques should be used to help reduce the incidence of component damage 
caused by electrostatic discharge (ESD).

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your 

body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap, 
which should be removed for potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as 

aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
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, aluminum 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 ham less 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).