MTX Audio SW1 owner manual Important Safety Instructions, In Case Of Trouble, Problem, Diagnosis

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.

of the polarized plug.

13. Power-Cord Protection – Power-supply cords

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 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

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

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

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 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
	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 turn-on.

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 “stand by” or “on” mode.

A)Signal is present, but input level control is set at minimum.

A)Input level control is set too low.

B)If using high level inputs, right and left channels are connected out of phase. Check wiring.

A)Volume of subwoofer is too high, causing amplifier to be over driven. Reduce setting of input level control.

B)Signal from receiver, amplifier, or preamplifier is distorted from being over driven. Reduce main system volume or bass tone 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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