TM9100 Service Manual General Information 103
© Tait Electronics Limited August 2005
ESD Precautions
Important This equipment contains devices which are susceptible
to damage from static discharges. You must handle these
devices carefully and according to the procedures
described in the manufacturers’ data books.
Purchase an antistatic bench kit from a reputable manufacturer and install
and test it according to the manufacturer’s instructions. Figure 4.1 shows
a typical antistatic bench set-up.
You can obtain further information on antistatic precautions and the
dangers of electrostatic discharge (ESD) from standards such as ESD
S4.1-1997 (revised) or EN 100015-4 1994. The Electrostatic Discharge
Association website is http://www.esda.org/.
Storage and Transport
of Items
Always observe anti-static precautions when storing, shipping or
carrying the circuit boards and their components. Use anti-static bags for
circuit boards and anti-static bags or tubes for components that are to be
stored or shipped. Use anti-static bags or trays for carrying circuit boards,
and foil or anti-static bags, trays, or tubes for carrying components.
Anti-static
Workbenches
Use an anti-static workbench installed and tested according to the
manufacturer’s instructions. A typical installation is shown in Figure 4.1.
These benches have a dissipative rubber bench top, a conductive wrist
strap, and a connection to the building earth. The material of the bench
top must satisfy not only anti-static requirements but also the non-scratch
requirements mentioned above.
Figure 4.1 Typical antistatic bench set-up
to building ground or
mains ground via
1MΩ series resistor
conductive wrist strap
dissipative rubber
bench mat
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