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1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install
in accordance with the manufacturer’s instruc-
8. Do not install near any heat sources such as
radiators, heat registers, stoves or other appara-
tus (including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polar-
ized or grounding-type plug. A polarized plug
has two blades with one wider than the other. A
grounding-type plug has two blades and a third
grounding prong. The wide blade or the third
prong is provided for your safety. If the provided
plug does not fit into your outlet, consult an
electrician for replacement of the obsolete out-
10. Protect the power cord from being walked
on or pinched, particularly at plugs, convenience
receptacles and the point where they exit from
11. Only use attachments/accessories specified
by the manufacturer.
12. Use only with the cart, stand, tri-
pod, bracket or table specified by the
manufacturer or sold with the appara-
tus. When a cart is used, use caution when mov-
ing the cart/apparatus combination to avoid
injury from tip-over.
13. Unplug this apparatus during lightning
storms or when unused for long periods of time.
14. Refer all servicing to qualified service per-
sonnel. Servicing is required when the apparatus
has been damaged in any way, such as power
supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus,
the apparatus has been exposed to rain or mois-
ture, does not operate normally, or has been
15. Do not expose this apparatus to dripping or
splashing and ensure that no objects filled with
liquids, such as vases, are placed on the appara-
16. To completely disconnect this apparatus
from the AC Mains, disconnect the power supply
cord plug from the AC receptacle.
17. The mains plug of the power supply cord
shall remain readily operable.
18. Do not expose batteries to excessive heat
such as sunshine, fire or the like.
The lightning flash with arrowhead
symbol, within an equilateral triangle,
is intended to alert the user to the
presence of uninsulated “dangerous volt-
age”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 equi-
lateral triangle is intended to alert the
user to the presence of important
operating and maintenance (servicing) instruc-
tions in the literature accompanying the product.
WARNING: To reduce the risk of fire or electric
shock, do not expose this apparatus to rain or
Do Not Open The Cabinet
There are no user-serviceable components inside
this product. Opening the cabinet may present a
shock hazard, and any modification to the prod-
uct will void your guarantee. If water or any
metal object such as a paper clip, wire or a
staple accidentally falls inside the unit, discon-
nect it from the AC power source immediately,
and consult an authorized service station.
CAUTION: The HD 990 uses a laser system. To
prevent direct exposure to the laser beam, do
not open the cabinet enclosure or defeat any of
the safety mechanisms provided for your protec-
tion. DO NOT STARE INTO THE LASER BEAM. To
ensure proper use of this prod uct, please read
this owner’s manual carefully and retain it for
future use. Should the unit require maintenance
or repair, please contact your local
Harman Kardon service station. Refer servicing to
qualified personnel only.
■ To assure proper operation, and to avoid the
potential for safety hazards, place the unit on
a firm and level surface. When placing the unit
on a shelf, be certain that the shelf and any
mounting hardware can support the weight of
■ Make certain that proper space is provided
both above and below the unit for ventilation.
If this product will be installed in a cabinet or
other enclosed area, make certain that there is
sufficient air movement within the cabinet.
■ Do not place the unit directly on a carpeted
■ Avoid installation in extremely hot or cold
locations, or an area that is exposed to direct
sunlight or heating equipment.
■ Avoid moist or humid locations.
When the unit gets dirty, wipe it with a clean,
soft dry cloth. If necessary, wipe it with a soft
cloth dampened with mild soapy water, then a
fresh cloth with clean water. Wipe dry immedi-
ately with a dry cloth. NEVER use benzene, thin-
ner, alcohol or any other volatile cleaning agent.
Do not use abrasive cleaners, as they may dam-
age the finish of metal parts. Avoid spraying
insecticide near the unit.
Moving The Unit
Before moving the unit, be certain to disconnect
any interconnection cords with other compo-
nents, and make certain that you disconnect the
unit from the AC outlet.
The carton and shipping materials used to pro-
tect your new HD 990 during shipment were
specially designed to cushion it from shock and
vibration. We suggest that you save the carton
and packing materials for use in shipping if you
move or should the unit ever need repair.
To minimize the size of the carton in storage, you
may wish to flatten it. This is done by carefully
slitting the tape seams on the bottom and col-
lapsing the carton down to a more two-dimen-
sional appearance. Other cardboard inserts may
be stored in the same manner. Packing materials
that cannot be collapsed should be saved along
with the carton in a plastic bag.
If you do not wish to save the packaging
materials, please note that the carton and other
sections of the shipping protection are
recyclable. Please respect the environment and
discard those materials at a local recycling
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