Yamaha DX100 Owner's Manual page 3

PRECAUTIONS
%
7.
Location
2.
Cleaning
3.
Service
and
Modifications
4.
Relocation
5.
Handling
6.
Electrical
Storms
(Lightning)
7.
Electromagnetic
Fields
Avoid
locations
exposed
to direct sunlight
or
other sources
of heat.
Also avoid
locations subject to
vibration,
excessive
dust, cold
or
moisture.
Do
not attempt
to
clean the
exterior with chemical
solvents;
this
may damage
the
finish.
Clean with
a
soft,
dry
cloth.
Do
not
open
the
DX100
or attempt
to
make
your
own
repairs or modifications
to
any
part of
the instrument. Such
actions
may
not only
result
in
electrical
shock
or
damage,
but
will
also void the product warranty. Refer
all
servicing
to
a qualified
Yamaha
service center.
When
moving
the
instrument be sure
to
unpfug
the
AC
adaptor (PA-1
21
0,
optional)
as well as
all
other connecting
cables.
Avoid
applying excessive
force
to
switches and
slide controls,
dropping
or
rough
handling.
The DX1 00
is
ruggedly constructed using
reliable solid-state
circuitry,
but
it
is still
a fine instrument
and should be
treated with
care.
Digital
circuitry,
such as
that
used
in
the
DX1
00,
is
sensitive to voltage spikes and
surges.
Be
sure
to
remove
all
connecting
cables
in
the
event
of an
electrical storm.
Digital circuitry
is
also sensitive to electromagnetic
fields
such
as
those produced
by
television
sets,
radio receivers, transmitters, transceivers,
etc.
The DX1 00
should
be kept
several
feet
away
from any such
sources
in
order
to
prevent possible
random
malfunctions.