The Singing Machine SMG - 299 - Manual (Page 4)

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IMPORTANT SAFETY INSTRUCTIONS
Objects and Liquids - Never push objects
of any kind into this product through openings,
as they may touch dangerous voltage points
or short out parts that could result in a fire or
electric shock, Never spill liquid of any kind on
the product.
Servicing - Do not attempt to service this Prod-
uct yourself, as opening or removing covers
may expose you to dangerous voltage or other
hazards and will void your warranty. Refer all
servicing to qualified service personnel.
Damage Requiring Service - Unplug this
product from the wall outlet and refer servicing
to qualified service personnel under the
following conditions:
When the power-supply cord or plug is
damaged.
If liquid has been spilled or objects have
fallen into ther product.
If the product has been exposed to rain or
water.
If the product does not operate normally
by following the operating instructions.
Adjust only those controls that are cov-
ered by the operating instructions, as an
improper adjustment of other controls may
result in damage and will often require
extensive work by a qualified technician
to restore the product to normal operation.
If the product has been dropped or dam-
aged in any way.
If the product exhibits a distinct change in
performance.
Replacement Parts - When replace-
ment parts are required, be sure the
service technician uses replacement
parts specified by the manufacturer or
having the same characteristics as
the original part. Unauthorized subst-
itutions may result in fire, electric
shock, or other hazards.
Safety Check - Upon completion of
service or repairs to this product, ask
the service technician to perform
safety checks to determine that the
product is in proper operating condition.
Wall or Ceiling Mount - The product should
be mounted to a wall or ceiling only as recom-
mended by the manufacturer.
Heat - The product should be situated away
from heat sources such as radiators, heat
registers, stoves, or other products (including
amplifiers) that produce heat.
Power Line - Locate an outdoor antenna
away from power lines.
Nonuse Periods - Unplug the product ’ s
power cord when you will not use it for an
extended period.
Outdoor Antenna Grounding - If an out-
side antenna or cable system is connected to
the product, ground the antenna or cable sys-
tem so as to provide some protection against
voltage surges and built-up static charges.
Article 810 of the National Electrical Code,
ANSI/NFPA 70, provides information about
proper grounding of the mast and supporting
structure, grounding of the lead-in wire to an
antenna-discharge unit, size of grounding
conductors, location of antenna-discharge
unit, connection to grounding electrodes, and
requirements for the grounding electrode. See
the example below.
ANTENNA
LEAD IN WIRE
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING
CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMPS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART. 250,PART H)
ELECTRIC SERVICE
EQUIPMENT
GROUND CLAMP
NEC - NATIONAL ELECTRICAL CODE
S 2898A