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 removal 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 bodily 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
SA-PM45E / SA-PM45EG / SA-PM45EE
Summary of Contents for SA-PM45E
Page 11: ...7 Operation Procedures 7 1 Main Unit Key Buttons Operation 11 SA PM45E SA PM45EG SA PM45EE ...
Page 12: ...7 2 Remote Control Key Buttons Operation 7 3 Disc Information 12 SA PM45E SA PM45EG SA PM45EE ...
Page 23: ...9 3 Main Parts Location Diagram 23 SA PM45E SA PM45EG SA PM45EE ...
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Page 40: ...10 2 Check and Repair of Panel Headphone Music Port P C B 40 SA PM45E SA PM45EG SA PM45EE ...
Page 41: ...10 3 Check and Repair of Transformer P C B 41 SA PM45E SA PM45EG SA PM45EE ...
Page 42: ...10 4 Check and Repair of Main P C B 42 SA PM45E SA PM45EG SA PM45EE ...
Page 44: ...10 6 Check and Repair of USB P C B Side A 44 SA PM45E SA PM45EG SA PM45EE ...
Page 45: ...10 7 Check and Repair of USB P C B Side B 45 SA PM45E SA PM45EG SA PM45EE ...
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Page 83: ...21 Exploded Views 21 1 Cabinet Parts Location SA PM45E SA PM45EG SA PM45EE 83 ...
Page 85: ...21 3 Packaging SA PM45E SA PM45EG SA PM45EE 85 ...
