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Yamaha DSP -A780 Operation Manual: Safety Instructions

Digital sound field processing amplifier.
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PRECAUTIONS & SAFETY INSTRUCTIONS
CAUTION
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.
• Explanation of Graphical Symbols
The lightning flash with arrowhead
symbol, within an equilateral triangle,
is intended to alert you 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.
The exclamation point within an
equilateral triangle is intended to alert
you to the presence of important
operating and maintenance
(servicing) instructions in the
literature accompanying the
appliance.
WARNING
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK, DO NOT EXPOSE
THIS UNIT TO RAIN OR MOISTURE.
IMPORTANT!
Please record the serial number of this
unit in the space below.
Model:
Serial No.:
The serial number is located on the rear
of the unit.
Retain this Owner's Manual in a safe
place for future reference.

SAFETY INSTRUCTIONS

1
Read Instructions – All the safety
and operating instructions should be read
before the unit is operated.
2
Retain Instructions – The safety and
operating instructions should be retained
for future reference.
3
Heed Warnings – All warnings on the
unit and in the operating instructions
should be adhered to.
4
Follow Instructions – All operating
and other instructions should be followed.
5
Water and Moisture – The unit
should not be used near water – for
example, near a bathtub, washbowl,
kitchen sink, laundry tub, in a wet
basement, or near a swimming pool, etc.
6
Carts and Stands – The unit should
be used only with a cart or stand that is
recommended by the manufacturer.
6A
A unit and cart combination should
be moved with care. Quick
stops, excessive force, and
uneven surfaces may
cause the unit and cart
combination to overturn.
7
Wall or Ceiling Mounting – The unit
should be mounted to a wall or ceiling
only as recommended by the
manufacturer.
8
Ventilation – The unit should be
situated so that its location or position
does not interfere with its proper
ventilation. For example, the unit should
not be situated on a bed, sofa, rug, or
similar surface, that may block the
ventilation openings; or placed in a built-
in installation, such as a bookcase or
cabinet that may impede the flow of air
through the ventilation openings.
9
Heat – The unit should be situated
away from heat sources such as
radiators, stoves, or other appliances that
produce heat.
10
Power Sources – The unit should be
connected to a power supply only of the
type described in the operating
instructions or as marked on the unit.
11
Power-Cord Protection – Power-
supply cords should be routed so that
they are not likely to be walked on or
pinched by items placed upon or against
them, paying particular attention to cords
at plugs, convenience receptacles, and
the point where they exit from the unit.
12
Cleaning – The unit should be
cleaned only as recommended by the
manufacturer.
13
Nonuse Periods – The power cord of
the unit should be unplugged from the
outlet when left unused for a long period
of time.
14
Object and Liquid Entry – Care
should be taken so that objects do not fall
into and liquids are not spilled into the
inside of the unit.
15
Damage Requiring Service – The
unit should be serviced by qualified
service personnel when:
A. The power-supply cord or the plug
has been damaged;
or
B. Objects have fallen, or liquid has
been spilled into the unit;
or
C. The unit has been exposed to rain;
or
D. The unit does not appear to operate
normally or exhibits a marked change in
performance;
or
E. The unit has been dropped, or the
cabinet damaged.
16
Servicing – The user should not
attempt to service the unit beyond those
means described in the operating
instructions. All other servicing should be
referred to qualified service personnel.
17
Power Lines – An outdoor antenna
should be located away from power lines.
18
Grounding or Polarization –
Precautions should be taken so that the
grounding or polarization is not defeated.

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