3 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).
7
TH-42PZ70B / TH-42PZ70E / TH-42PY70F / TH-42PY70P
Summary of Contents for TH-42PY70P
Page 5: ...1 Applicable signals 5 TH 42PZ70B TH 42PZ70E TH 42PY70F TH 42PY70P ...
Page 20: ...8 Location of Lead Wiring 8 1 Lead of Wiring 1 20 TH 42PZ70B TH 42PZ70E TH 42PY70F TH 42PY70P ...
Page 21: ...8 2 Lead of Wiring 2 21 TH 42PZ70B TH 42PZ70E TH 42PY70F TH 42PY70P ...
Page 22: ...8 3 Lead of Wiring 3 22 TH 42PZ70B TH 42PZ70E TH 42PY70F TH 42PY70P ...
Page 23: ...8 4 Lead of Wiring 4 23 TH 42PZ70B TH 42PZ70E TH 42PY70F TH 42PY70P ...
Page 27: ...9 4 No Picture 27 TH 42PZ70B TH 42PZ70E TH 42PY70F TH 42PY70P ...
Page 64: ...TH 42PZ70B TH 42PZ70E TH 42PY70F TH 42PY70P 64 ...
Page 142: ...16 2 Fan Exploded Views 142 TH 42PZ70B TH 42PZ70E TH 42PY70F TH 42PY70P ...
Page 143: ...16 3 Packing Exploded Views 1 143 TH 42PZ70B TH 42PZ70E TH 42PY70F TH 42PY70P ...
Page 144: ...16 4 Packing Exploded Views 2 144 TH 42PZ70B TH 42PZ70E TH 42PY70F TH 42PY70P ...
Page 145: ...16 5 Stand Packing Exploded Views 145 TH 42PZ70B TH 42PZ70E TH 42PY70F TH 42PY70P ...
Page 146: ...16 6 Replacement Parts List Notes 146 TH 42PZ70B TH 42PZ70E TH 42PY70F TH 42PY70P ...
