2 Prevention of Electrostatic Discharge (ESD) to
Electrostatic Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called
Electrostatic Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistor-sand
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 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 sufficient to damage
an ES device).
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DMR-ES20EG / DMR-ES20EP / DMR-ES20EE
Summary of Contents for DMR-ES20EG
Page 2: ...2 DMR ES20EG DMR ES20EP DMR ES20EE ...
Page 7: ...5 Each Button 7 DMR ES20EG DMR ES20EP DMR ES20EE ...
Page 12: ...Error Occurring Disc State 12 DMR ES20EG DMR ES20EP DMR ES20EE ...
Page 25: ...12 2 Checking and Repairing of Digital P C B 25 DMR ES20EG DMR ES20EP DMR ES20EE ...
Page 26: ...12 3 Checking and Repairing of Main P C B 26 DMR ES20EG DMR ES20EP DMR ES20EE ...
Page 27: ...12 4 Checking and Repairing of DVD RAM Drive 27 DMR ES20EG DMR ES20EP DMR ES20EE ...
Page 36: ...DMR ES20EG DMR ES20EP DMR ES20EE 36 ...
Page 42: ...DMR ES20EG DMR ES20EP DMR ES20EE 42 ...
Page 54: ...DMR ES20EG DMR ES20EP DMR ES20EE 54 ...
Page 63: ...20 Exploded Views 20 1 Casing Parts Mechanism Section 63 DMR ES20EG DMR ES20EP DMR ES20EE ...
Page 64: ...20 2 Packing Accessories Section 64 DMR ES20EG DMR ES20EP DMR ES20EE ...