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3 ESD PRECAUTIONS
Electrostatically Sensitive Devices (ESD)
Some semiconductor (solid state) devices can be damaged easily by
static electricity.
Such components commonly are called Electrostatically Sensitive
Devices (ESD). Examples of typical ESD 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 static electricity.
(1) Immediately before handling any semiconductor component or
semiconductor-equipped assembly, drain off any electrostatic
charge on your body by touching a known earth ground.
Alternatively, obtain and wear a commercially available
discharging wrist strap device, 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 ESD 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 ESD
devices.
(4) Use only an anti-static solder removal devices. Some solder
removal devices not classified as “anti-static” can generate
electrical charges sufficient to damage ESD devices.
(5) Do not use freon-propelled chemicals. These can generate electrical
charges sufficient to damage ESD devices.
(6) Do not remove a replacement ESD device from its protective
package until immediately before your are ready to install it. (Most
replacement ESD devices are packaged with leads electrically
shorted together by conductive foam, aluminum foil or comparable
conductive materials).
(7) Immediately before removing the protective materials from the
leads of a replacement ESD 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
ESD 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 sufficient to damage
an ESD device).
Summary of Contents for D910B
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Page 70: ...4 3 4 4 4 1 VCR MAIN COMPONENT SIDE ...
Page 71: ...4 6 4 5 CONDUCTOR SIDE ...
Page 72: ...4 7 4 8 4 2 DVD MAIN COMPONENT SIDE ...
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Page 74: ...4 12 4 11 4 3 S M P S COMPONENT SIDE CONDUCTOR SIDE ...
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Page 79: ...5 1 S M P S 5 6 5 5 ...
Page 80: ...5 2 POWER DRIVE 5 7 5 8 ...
Page 81: ...5 3 OSD VPS PDS 5 10 5 9 ...
Page 82: ...5 4 A2 NICAM 5 11 5 12 ...
Page 83: ...5 5 AUDIO VIDEO 5 14 5 13 ...
Page 84: ...5 6 Hi Fi 5 15 5 16 ...
Page 85: ...5 7 INPUT OUTPUT 5 18 5 17 ...
Page 86: ...5 8 TM 5 19 5 20 ...
Page 87: ...5 9 SYSCON 5 21 5 22 ...
Page 88: ...5 10 LOGIC FUNCTION 5 23 5 24 ...
Page 89: ...5 11 SECAM SLV D950B D910B D910R Only 5 25 5 26 ...
Page 90: ...5 12 DVD MAIN MICOM AV DECODER 5 27 5 28 ...
Page 91: ...5 13 DVD SERVO 5 29 5 30 ...
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