IMPORTANT SAFETY INSTRUCTIONS
IN CASE OF TROUBLE
1. | Read Instructions – All the safety and operating |
instructions should be read before the product is | |
opened. | |
2. | Retain Instructions – The safety and operating |
instructions should be retained for future reference. | |
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 product.
Your new subwoofer, once
3. Heed Warnings – All warnings on the product and |
in the operating instructions should be adhered to. |
4. Follow Instructions – All operating and use |
instructions should be followed. |
5. Cleaning – Unplug this product from the wall |
outlet before cleaning. Do not use liquid cleaners or |
aerosol cleaners. Use a damp cloth for cleaning. |
Exception: A product that is meant for uninterrupted |
service and that for some specific reason, such as |
the possibility of the loss of an authorization code for |
a CATV Converter, is not intended to be unplugged |
by the user for cleaning or any other purpose, may |
exclude the reference to unplugging the product in the |
cleaning description otherwise required in |
above 5). |
6. Attachments – Do not use attachments not |
recommended by the product manufacturer as they |
may cause hazards. |
7. Water and Moisture – Do not use this product |
near water – for example, near a bath tub, wash bowl, |
kitchen sink, or laundry tub; in a wet basement; or |
near a swimming pool; and the like. |
8. Accessories – Do not place this product on an |
unstable cart, stand, tripod, bracket, or table. The |
product may fall, causing |
serious injury to a child |
or adult, and serious |
damage to the product. |
Use only with a cart, stand, |
tripod, bracket, or table |
recommended by the |
manufacturer, or sold with |
the product. Any mounting |
of the product should |
follow the manufacturer’s |
instructions, and should |
use a mounting accessory recommended by the |
manufacturer. |
9. A product and cart combination should be moved |
with care. Quick stop, excessive force, and uneven |
surfaces may cause the product and cart combination |
to overturn. |
10. Ventilation – Slots and openings in the cabinet |
are provided for ventilation and to ensure reliable |
operation of the product and to protect it from |
overheating, and these openings must not be blocked |
or covered. The openings should never be blocked |
by placing the product on a bed, sofa, rug or other |
similar surface. This product should not be placed in a |
proper ventilation is provided or the manufacturer’s |
instructions have been adhered to. |
11. Power Sources – This product should be |
operated only from the type of power source indicated |
on the marking label. If you are not sure of the type |
of power supply to your home, consult your product |
dealer or local power company. For products intended |
to operate from battery power, or other sources, refer |
to the operating instructions. |
12. Grounding or Polarization – This product may be |
equipped with a polarized |
(a plug having one blade wider than the other). This |
plug will fit into the power outlet only one way. This is |
a safety feature. If you are unable to insert the plug |
fully into the outlet, try reversing the plug. If the plug |
should still fail to fit, contact your electrician to replace |
your obsolete outlet. Do not defeat the safety purpose |
of the polarized plug. |
15.Outdoor Antenna Grounding – If cable system is connected to the product, be sure the cable system is grounded so as to provide some protection against voltage surges and
16.Lightning – For added protection for this product during a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from the wall outlet and disconnect the antenna or cable system. This will prevent damage to the product due to lightning and
17.Overloading – Do not overload wall outlets, extension cords, or integral convenience receptacles as this can result in a risk of fire or electric shock.
18.Object and Liquid Entry – Never push objects of any kind into this product through openings as they may touch dangerous voltage points or
19.Servicing – Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel.
20.a) When the
b)If liquid has been spilled, or objects have fallen into the product.
c)If the product has been exposed to rain or water.
d)If the product does not operate normally by following the operating instructions. Adjust only those controls that are covered 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 its normal operation.
e)If the product has been dropped or damaged in any way.
21.Replacement Parts – When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, or other hazards.
22.Safety Check – Upon completion of any service or repairs to this product, ask the service technician to perform safety checks to determine that the product is in proper operating condition.
23.Wall or Ceiling Mounting – The product should be mounted to a wall or ceiling only as recommended by the manufacturer.
24.Heat – The product should be situated away from heat sources such as radiators, heat registers, stoves, or other products (including amplifiers) that produce heat.
Problem
1)Subwoofer makes loud noise at
2)Subwoofer has no output.
a)Status LED off
b)Red light on
c)Green light on
3)Subwoofer has little output.
4)Subwoofer output is distorted at high volume.
5)Subwoofer output is distorted at low volume.
6)Subwoofer makes hum or buzzing noises.
Diagnosis
A)Muting circuit is defective. Return unit for repair.
A)Line cord is not plugged in.
B)Line fuse is blown. Unplug line cord from wall outlet,then check fuse.
C)Internal fuse is blown. Return unit for repair.
A)No signal is reaching the unit. Check connections from receiver or preamplifier.
B)Power switch is turned off. Place switch to “auto” or “on” mode.
A)Signal is present, but level control is set at minimum.
A)Level control is set too low.
B)If using high level inputs, right and left channels are connected out of phase. Check wiring.
A)Signal from receiver, amplifier, or preamplifier is distorted from being over driven. Reduce main system volume or bass tone control.
B)Volume of subwoofer is too high, causing amplifier to be over driven. Reduce setting of input level control.
C)Subwoofer electronics are defective. Return unit for repair.
A)Signal from receiver, amplifier, or preamplifier is distorted from defective electronics.
B)Signal connecting wires to subwoofer are shorted. Check wiring.
C)Subwoofer electronics are defective. Return unit for repair.
A)Grounding problem or ground loop condition. Check wiring.
B)Isolate problem by removing all connecting cables and turning up subwoofer input level control. If noise is still present, subwoofer electronics are defective. Return unit for repair.
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