DZ HT-7, Инструкция по сборке, Страница: 11 / 44

Page 11
STATIC PRECAUTIONS
Many of the components in your
kit can be damaged by exposure to
static electricity. Please read
this page to familiarize yourself
with the causes of and solutions
to this problem.
When the climate is dry, you can
generate thousands of volts sim ‐
ply by walking across a carpet.
When you then touch a metal ob ‐
ject you can feel the effects of
this as you draw a spark! That
same spark, often too small to
see or feel, can destroy sensi ‐
tive electronic components. You
MUST take precautions when work ‐
ing with electronics to prevent
damage.
The best solution is to outfit
your workbench with anti ‐ static
devices — floormats, grounded
soldering irons, and workmats
with grounded wriststraps. If
these are not practical for you,
the very least you should do is
to discharge yourself to ground
after you sit down and before you
touch any electronic items, by
touching a grounded object such
as the corner of a wall.
In a dry environment, simply
standing up after sitting in a
non ‐ grounded chair can also
charge you with electricity. If
you stand up to stretch, for ex ‐
ample, be sure to re ‐ ground your ‐
self before getting back to work.
Don’t wear insulated sole shoes
and avoid Nylon, wool or other
static ‐ producing material in your
clothing.
If your work area floor is car ‐
peted, spray fabric softener on
it using a hand spray bottle.
Fabric softener is conductive and
will bleed away carpet static for
a few hours.
Don’t use a plastic table unless
you have a grounded workmat on
it. Use a metal table if possi ‐
ble.
Cats are notorious for inducing
static into your work area. Don’t
allow them anywhere near your
workbench!
All electronic components are
susceptible to static, but semi ‐
conductors and assembled boards
containing semiconductors are the
most prone to damage. These in ‐
clude diodes (including light ‐
emitting diodes [LEDs]), transis ‐
tors and integrated circuits
(ICs).
You are a walking lightning
bolt! Be careful!