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Before using
4
RQT6243
Safety
1. Power source—Connect the unit to a power source of the type
described in these instructions or as marked on the unit.
2. Polarization—The unit is equipped with a polarized power plug
where one blade is wider than the other. This safety feature
ensures that the plug fits into your household AC outlet only one
way. If the plug doesn’t fit one way, try reversing it. If the plug
still doesn’t fit, contact an electrician to replace the obsolete
outlet. Do not attempt to defeat the safety purpose of the plug.
3. Power cord protection—Route the AC power supply cord so
that it will not be walked on or pinched by items placed on or
against it. Never take hold of the plug or cord with wet hands.
Always grasp the plug body firmly when connecting and
disconnecting it.
4. Overloading—When connecting the AC power supply cord, be
careful not to overload the household AC outlet, extension cord,
or outlet from any other device as this can result in fire or electric
shock.
5. Nonuse periods—Turn the unit off when it is not in use. Unplug
the unit from the household AC outlet if it is not to be used for a
long time. Unplug the unit during lightning storms.
6. Attachments and accessories—Use only the attachments and
accessories recommended in these operating instructions.
Installation
Placement
1. Ventilation—Situate the unit so that it receives proper ventilation.
Do not install in a confined space such as a bookcase or cabinet.
Allow at least 10 cm (4
inches) clearance from the rear of the
unit. To prevent the risk of electric shock or fire due to overheating
ensure curtains and other materials do not obstruct the unit’s
ventilation.
2. Foreign material—Ensure objects and liquids do not get into
the unit. Avoid exposing the unit to excessive smoke, dust,
mechanical vibration, and shock.
3. Magnetism—Situate the unit away from equipment and devices
that generate strong magnetic fields.
4. Stacking—Do not place heavy objects on top of this unit.
5. Surface—Place the unit on a flat, level surface.
6. Carts and stands—Use the unit only with carts
and stands recommended by the manufacturer.
Move carts with care. Sudden stops, excessive
force, and uneven surfaces can cause carts to
overturn.
7. Wall and ceiling mounting—Do not mount the unit on walls or
ceilings unless specified in the instructions.
Environment
1. Water and moisture—Do not use the unit near water, such as
near a bathtub or swimming pool. Avoid damp basements.
2. Heat—Situate the unit away from heat sources, such as radiators.
Do not situate where temperatures fall below 5°C (41°F) or rise
above 35°C (95°F).
3. Power lines—Take care when setting up an outdoor antenna
that it is not near overhead power lines, electric lights, or electri-
cal circuits, and that there is no danger of the antenna falling on
power lines, electric lights, or electrical circuits. When installing
an outdoor antenna, take extreme care not to touch such power
lines or circuits, as contact with them can be fatal.
Maintenance
(See page 31 for details.)
Unplug the unit from the household AC outlet before cleaning.
Clean with a damp cloth.
Do not use abrasive pads, scouring powders, or solvents.
Service
1. Damage requiring service —The unit should be serviced by
qualified service personnel if:
(a) The AC power supply cord or the plug has been damaged; or
(b) Objects or liquids have gotten into the unit; or
(c) The unit has been exposed to rain; or
(d) The unit does not operate normally or exhibits a marked
change in performance; or
(e) The unit has been dropped or the cabinet damaged.
2. Servicing —Do not attempt to service the unit beyond that
described in these operating instructions. Refer all other servicing
to authorized servicing personnel.
3. Replacement parts —When parts need replacing ensure the
servicer uses parts specified by the manufacturer or parts that
have the same characteristics as the original parts. Unauthorized
substitutes may result in fire, electric shock, or other hazards.
4. Safety check —After repairs or service, ask the servicer to
perform safety checks to confirm that the unit is in proper working
condition.
IMPORTANT SAFETY INSTRUCTIONS
Read these operating instructions carefully before using the unit. Follow the safety instructions on the unit and the safety precautions listed below.
Keep these operating instructions handy for future reference.
4. Outdoor antenna grounding—If you connect an outdoor an-
tenna, ground the antenna system to protect against voltage
surges and built-up static charges. Section 810 of the National
Electrical Code, ANSI/NFPA No. 70-1990, provides information
about grounding of the mast and supporting structure, grounding
of the lead-in wire to an antenna discharge unit, size of ground-
ing conductors, location of antenna-discharge unit, connection to
grounding electrodes, and requirements for the grounding elec-
trode. Refer to this diagram.
ELECTRIC
SERVICE
EQUIPMENT
GROUND
CLAMP
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)
NEC—NATIONAL ELECTRICAL CODE