2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by 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 electro static discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equiped 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 equiped with ES devices, place the assembly on a conductive surface such as aluminium
foil, to prevent electrostatic charge build up 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 remover device. Some solder removal devices not classified as “anti-static (ESD protected)” can
generate electrical charge 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, aluminium 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 body motions when handling unpackaged replacement ES devices. (Otherwise harmless 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
SC-EN35P / SC-EN35PC
Summary of Contents for SC-EN35P
Page 10: ...6 Accessories Remote Control AC Cord FM AM Antenna 10 SC EN35P SC EN35PC ...
Page 12: ...7 3 Connection 12 SC EN35P SC EN35PC ...
Page 13: ...7 4 Using the XM Satellite Radio 13 SC EN35P SC EN35PC ...
Page 32: ...11 1 Check and Repair of CD Servo P C B 32 SC EN35P SC EN35PC ...
Page 35: ...12 2 CD Servo P C B 12 3 Motor P C B 12 4 Panel P C B 12 5 Tuner P C B 35 SC EN35P SC EN35PC ...
Page 36: ...12 6 Waveform Chart 36 SC EN35P SC EN35PC ...
Page 38: ...SC EN35P SC EN35PC 38 ...
Page 44: ...44 SC EN35P SC EN35PC ...
Page 54: ...SC EN35P SC EN35PC 54 ...
Page 61: ...20 Exploded Views 61 SC EN35P SC EN35PC ...
Page 62: ...62 SC EN35P SC EN35PC ...
Page 63: ...20 1 Cabinet Parts Location SC EN35P SC EN35PC 63 ...
Page 64: ...SC EN35P SC EN35PC 64 ...
Page 65: ...20 2 Packaging SC EN35P SC EN35PC 65 ...
Page 66: ...SC EN35P SC EN35PC 66 ...
