Margules SF220-20th User Manual

SF220-20th

Audio

preamplifier

IMPORTANT SAFETY INSTRUCTIONS
CAUTION: To reduce the risk of electric shock, do not

remove the cover. There are no user-serviceable parts
inside; it is recommended that only qualified personnel
service this component.

1. OWNER’S MANUAL: Before powering up the
equipment, read all safety and operating instructions and
follow them as instructed. Retain the safety and operating
instructions for future reference.

2. ATTACHMENTS: Use only those attachments
recommended by the unit manufacturer, as others may
cause hazards.

3. ACCESSORIES: Do not place the unit on an unstable
cart, stand, tripod, bracket, or table. The unit may fall,
causing injury to a person or damage to the unit. Mount
the unit according to the manufacturer’s instructions with
the suggested mounting accessory.

4. WALL OR CEILING MOUNTING: Mount the unit to a
wall or ceiling only in the manner recommended by the
manufacturer.

5. WATER AND MOISTURE: Do not use the unit near
water (for example, near a swimming pool, bath tub,
wash bowl, kitchen sink, or laundry tub) or in a damp
environment (like a basement or outside in the rain).

6. OBJECT AND LIQUID ENTRY: Do not push objects of
any kind into the unit through openings as they could
touch dangerous voltage points and short-out parts,
possibly resulting in a fire or electric shock. Avoid spilling
liquid of any kind on the unit. If water or any metal object
(such as a paper clip, coin, or staple) accidentally falls
inside the unit, disconnect it from the AC power source
immediately and contact Margules Audio for further
instructions.

7. HEAT: Position the unit away from heat sources such
as radiators, heat registers, stoves, or other units
(including amplifiers) that produce heat.

8. VENTILATION: Slots and openings in the cabinet
create ventilation to protect the component from
overheating. Allow at least 6 inches (16cm) of clearance
above the unit and an opening behind the unit for airflow.
Do not place the unit on a bed, sofa, rug, built-in
bookcase, or rack without adequate ventilation.

9. GROUNDING OR POLARIZATION: As a safety
feature, the unit may be equipped with a polarized
alternating current line plug in which one blade is wider
than the other. This plug will fit into the power outlet only
one way. If you cannot insert the plug fully into the outlet,
try reversing the plug. If the plug still will not fit, contact a
licensed electrician to update your obsolete outlet. Do not
defeat the safety purpose of the polarized plug.

10. POWER SOURCES: Operate the unit only from the
power source indicated on the marking label. If you are
unsure of the type of power supplied to your home,
consult your unit dealer or local power company.

11. POWER CORD PROTECTION: Arrange power
supply cords so that they do not suffer from foot traffic or
pinching by items placed on or against them. Pay close
attention to cords where plug enter the AC outlet and
where they exit from the unit.

12. LIGHTNING: For added protection during a lightning
storm or when the component is idle for long periods of
time, unplug the unit from the wall outlet and disconnect
the antenna or cable system. This will help protect the
unit from lightning and power line surge damage.

13. POWER LINES: Do not locate an outside antenna
system in the vicinity of overhead power lines or other
electric light or power circuits. When installing an outside

antenna system, take extreme care to avoid touching the
power lines or circuits; contact with them could be fatal.

14. OVERLOADING: Do not overload wall outlets,
extension cords, or integral convenience receptacles as
this increases the risk of fire or electric shock

15. REPLACEMENT PARTS: When replacement parts
are required, be sure the service technician has used
replacement parts specified by the manufacturer or those
having the same characteristics as the original parts.
Unauthorized substitutions may result in fire, electric
shock or other hazards.

16. SAFETY CHECK: Upon completion of any service or
repairs to the unit, ask the service technician to perform
safety checks to ensure the unit is in proper operating
condition.

17. IMPORTANT SAFETY NOTE:

• Before connecting a new product such as the SF220 to
your audio or home theater system, turn off all other
equipment (preferably unplugging them from the AC
power source). Many audio components feature
automatic turn-on circuits that may activate during an
installation, potentially causing damage to electronic
components and/or speakers. This type of damage is not

covered by product warranties, and Margules Audio
specifically disclaims responsibility for any such damage.

• Power Cord: The removable power cord provided with
your player was specifically designed for use with this
product, but other AC cords may be used. Consult your
dealer for advice on AC power cords and high quality wire
in your system.

• AC Fuse: The fuse is located inside the
chassis and is not user serviceable. If the
unit does not power up, contact an
authorized service representative

• Wiring: Cables running inside walls should have the
appropriate markings to indicate compliance and listing
by the UL, CSA or other standards required by the UL,
CSA, NEC or your local building code. Questions about
cables inside of walls should be referred to a qualified
custom installer, a licensed electrician, or low-voltage
contractor.

18. RECORDING COPYRIGHT: Recording of
copyrighted material for other than personal use is illegal
without permission of the copyright holder.

19. NOTE TO CATV SYSTEM INSTALLER: This
reminder is provided to call the CATV system installer's
attention to article 820-40 of the NEC, ANSI/NFPA 70,

which provides guidelines for proper grounding and, in
particular, specifies that the cable ground shall be
connected to the grounding system of the building as
close to the point of cable entry as practical.

20. FCC INFORMATION FOR USER:

• CAUTION: Any changes or
modifications not expressly approved
by Margules Audio could void the
user's authority to operate the equipment.

• NOTE: This equipment has been tested and found to
comply with the limits for a Class B digital device
pursuant to Part 15 of the FCC Rules.

• These limits are designed to provide reasonable

protection against harmful interference in a residential
installation. This equipment generates and can radiate
radio frequency energy, and if not installed and used in
accordance with the instructions it may cause harmful
interference to radio communications. However, there is
no guarantee that interference will not occur in a
particular installation. If this equipment does cause
harmful interference to radio or television reception,
which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the
interference by one or more of the following measures: