Yamaha qx21 Owner's Manual page 2

SUPPLEMENTAL
MARKING INFORMATION
Yamaha
Digital
Musical Instrument Products
will
have
either a
label
similar
to
the
graphic
shown
below
or
a
molded/stamped
facsimile
of
the
graphic on
its
enclosure.
The
explanation
of
these graphics
appears on
this
page. Please
observe
all
cautions
indicated.
A
CAUT ON
RISK OF ELECTRIC SHOCK.
DO NOT OPEN
CAUTION:
TO REDUCE
THE
RISK
OF
ELECTRIC
SHOCK DO NOT REMOVE
COVER
(OR BACK).
NO
USER-SERVICEABLE
PARTS
INSIDE.
REFER SERVICING TO
QUALIFIED SERVICE
PERSONNEL
A
SEE
BOTTOM
OF
UNIT
FOR GRAPHIC SYMBOL
MARKINGS.
The
Exclamation
point within
an
equila-
teral
triangle
is
intended
to alert
the user
to
the
presence
of
important operating
and maintenance
(servicing) instructions
in
the literature
accompanying
the pro-
duct.
The
lightning flash
with
arrowhead sym-
bol,
within an equilateral triangle,
is in-
tended
to alert
the
user
to
the
presence
of
uninsulated
"dangerous
voltage"
within the product's
enclosure
that
may
be
of sufficient
magnitude
to
constitute
a
risk of electric
shock
to
persons.
SPECIAL
MESSAGE SECTION
ELECTROMAGNETIC
INTERFERENCE
(RFI):
Your
Yamaha
Digital
Musical Instrument Product has been
type tested
and
found
to
comply
with
all
applicable
regulations.
However,
if it
is
installed
in
the
immediate
proximity
of
other electronic
devices,
some
form
of interference
may
occur. For additional
RFI information
see
FCC
information section located
in this
manual.
IMPORTANT
NOTICE:
This product has been
tested
and
approved by independent
safety testing laboratories
in
order
that
you
may
be sure
that
when
it
is
properly
installed
and
used
in
its
normal and customary manner,
all
foreseeable
risks
have been
eliminated.
DO NOT
modify
this unit or
commission
others
to
do so
unless specifically authorized
by
Yamaha.
Product
performance
and/or
safety
standards
may
be diminished. Claims
filed
under
the
expressed war-
ranty
may
be denied
if
the unit is/has
been
modified. Implied
warranties
may
also
be
affected.
SPECIFICATIONS
SUBJECT TO CHANGE:
The
information
contained
in
this
manual
is
believed
to
be
correct at the
time
of printing.
Yamaha
reserves the
right to
change
or modify
specifications
at
any time without notice
or obligation to
update
existing
units.
NOTICE:
Service charges
incurred
due
to
a lack
of
know-
ledge
relating to
how
a function or
effect
works (when
the
unit
is
operating as designed), are not
covered
by the
manufacturer's warranty.
Pleasestudy
this
manual
carefully
before requesting
service.
NAME
PLATE LOCATION: The
graphic below
indicates the
location of the
Name
Plate
on your
Yamaha
Digital
Musical
Instrument.
The
Model,
Serial
Number, Power
requirements,
etc.,
are indicated on
this plate.
You
should note the model,
serial
number and
the date
of
purchase
in
the
spaces
pro-
vided
below and
retain this
manual
as
a permanent
record
of
your purchase.
STATIC ELECTRICITY CAUTION:
Some Yamaha
Digital
Musical Instrument products
have modules
that plug
into
the
unit to
perform
various
functions.
The
contents
of
a
plug-in
module can
be altered/damaged by
static electricity dis-
charges.
Static electricity
build-ups are
more
likely to
occur
during cold winter
months
(or in
areas
with very dry
cli-
mates)
when
the natural humidity
is
low.
To
avoid possible
damage
to
the plug-in
module, touch any metal
object
(a
metal
desk lamp, a door
knob,
etc.)
before handling the
module.
If
static electricity
is
a problem
in
your
area,
you
may
want
to
have your
carpet treated with a substance
that
reduces
static electricity build-up.
See
your
local
carpet
retailer for professional
advice
that relates to your
specific
situation.
Model
Serial No.
Purchase
Date
This information
on
safety
Is
provided
to
comply
with U.S.A. laws, but
should be observed by users
In all
countries.