
3 Prevention of Electro Static 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 transistorsand
semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage
caused by electro static 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 Remove device. Some solder Remove 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 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).
6
TH-50PHD8BK / TH-50PHD8BS / TH-50PHD8EK / TH-50PHD8ES
Содержание TH-50PHD8BK
Страница 4: ...1 Applicable signals 4 TH 50PHD8BK TH 50PHD8BS TH 50PHD8EK TH 50PHD8ES ...
Страница 21: ...8 Location of Lead Wiring 21 TH 50PHD8BK TH 50PHD8BS TH 50PHD8EK TH 50PHD8ES ...
Страница 22: ...22 TH 50PHD8BK TH 50PHD8BS TH 50PHD8EK TH 50PHD8ES ...
Страница 25: ...9 4 Adjustment Volume Location 9 5 Test Point Location 25 TH 50PHD8BK TH 50PHD8BS TH 50PHD8EK TH 50PHD8ES ...
Страница 36: ...13 Option Setting 36 TH 50PHD8BK TH 50PHD8BS TH 50PHD8EK TH 50PHD8ES ...
Страница 38: ...38 TH 50PHD8BK TH 50PHD8BS TH 50PHD8EK TH 50PHD8ES ...
Страница 63: ...15 Schematic Diagrams 15 1 Schematic Diagram Notes TH 50PHD8BK TH 50PHD8BS TH 50PHD8EK TH 50PHD8ES 63 ...
Страница 120: ...TH 50PHD8BK TH 50PHD8BS TH 50PHD8EK TH 50PHD8ES 120 ...
Страница 123: ...16 2 Cable relation 123 TH 50PHD8BK TH 50PHD8BS TH 50PHD8EK TH 50PHD8ES ...
Страница 124: ...16 3 Packing summary 124 TH 50PHD8BK TH 50PHD8BS TH 50PHD8EK TH 50PHD8ES ...
Страница 125: ...125 TH 50PHD8BK TH 50PHD8BS TH 50PHD8EK TH 50PHD8ES ...
Страница 127: ...18 Replacement Parts List 18 1 Relpacement Parts List Notes 127 TH 50PHD8BK TH 50PHD8BS TH 50PHD8EK TH 50PHD8ES ...