Yamaha DX7s, Owner'S Manual

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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.
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.
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
The lightning flash with arrowhead sym-
bol, within an equilateral triangle, is in-
tended to alert the user to the presence
o f u n i n s u l a t e d
“ d a n g e r o u s v o l t a g e ”
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. Please study this manual carefully
before requesting service.
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.
M o d e l
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.