DCM Speakers DCM1010 owner manual Important Safety Instructions Case of Trouble, Opened

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.
3.	Heed Warnings – All warnings on the product and
in the operating instructions should be adhered to.

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.

15. Outdoor Antenna Grounding – If cable system is

connected to the product, be sure the cable system is

Your new subwoofer, once set-up and adjusted, should give you years of listening enjoyment with your favorite movies and music. However, if you should experience a problem with your unit, the following chart should help you locate the trouble:

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

grounded so as to provide some protection against

voltage surges and built-up static charges.

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 power-line surges.

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 short-out parts

that could result in a fire or electric shock. Never spill

liquid of any kind on the product.

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 power-supply cord or plug is

damaged.

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

Problem

1)Subwoofer makes loud noise at turn-on.

2)Subwoofer has no output.

a)Status LED off

b)Red light on

c)Green light on

3)Subwoofer has little output.

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.

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

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

4)Subwoofer output is distorted at high volume.

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.

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 built-in

installation such as a bookcase or rack unless 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 alternating-current line plug

(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.

13. Power-Cord Protection – Power-supply cords

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.

5)Subwoofer output is distorted at low volume.

6)Subwoofer makes hum or buzzing noises.

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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