OPERATION
AC
Power
Sources
Computers are sensitive
to fluctuations
in the power supply
at the wall
socket. This
is rarely
a problem unless
you are
operating in the vicinity
of heavy electrical
machinery.
The
power source may
also be unstable if
some appliance
or office
machine
in the vicinity
has
a defective switch
which arcs when turned
on or off.
Your
Model III
TRS-80 is
equipped with
a
specially
designed, built-in
AC line
filter.
It should eliminate
the effects
of ordinary
power-line fluctuations.
However, if
the fluctuations
are severe
,
you may need to
take some or all
of the
following
steps:
Install
bypass or isolation
devices
in the problem-causing
devices
Fix
or replace any
defective (arcing)
switches
Install
a separate
power-line
for the Computer
Install
a special line
filter designed
for computers and
other sensitive
electronic
equipment
Power line
problems are rare
and many
times can be prevented
by proper choice
of
installation
location. The
more complex
the system and the more
serious the
application,
the more
consideration
you should give to providing
an ideal
power
source
for your
Computer.
Maintenance
Your Computer requires
little maintenance
. It ' s a good idea to keep
it clean and free
of
dust build-up. This is
especially important
for the keyboard. Radio
Shack sells
a
custom-designed
Model III dust cover
you may find helpful
.
If you need to clean
the Computer
case, use a damp, lint- free
cloth.
The peripheral
devices (cassette recorder,
line printer,
etc.) may require more
maintenance.
Check the owner's
manual for each peripheral
in your system.
87
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