System Fidelity ST-270 Manual

ACCESSORIES
Accessories
1 x ST-270 Stereo Tuner
1 x Remote control
2 x Batteries (Optional)
1 x Operation Manual
This operation manual supplies all the information that you need to have about your System
Fidelity FM/AM tuner. Please read this operation manual carefully before you start using the
unit!
CONTENTS
ACCESSORIES
CONTENTS
SAFETY PRECAUTIONS
IMPORTANT SAFETY INSTRUCTIONS
IMPORTANT INFORMATION
CONNECTIONS TO THE MAINS
REMOTE CONTROL
FRONT/REAR PANEL
AUDIO CONNECTIONS
OPERATION AND FUNCTIONS
TROUBLESHOOTING
TECHNICAL DATA
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IMPORTANT SAFETY INSTRUCTIONS
WARNING: IT IS IMPORTANT THAT YOU READ AND OBSERVE BOTH THE INSTRUCTIONS IN THIS
MANUAL AND THE INSTRUCTIONS ON THE UNIT. KEEP THIS MANUAL FOR FUTURE REFERENCE .
This unit was designed and manufactured with a view to providing maximum safety for the user.
Incorrect use of the unit may cause electrical shock or fire. The protection devices built into this unit
will protect the user if the procedures below are observed in connection with installation, use and
repair. This unit is fully electronic and contains no parts that can be repaired by the end user .
PLEASE DO NOT REMOVE THE CABINET. RISK OF DANGEROUS VOLTAGE. ONLY QUALIFIED AND
AUTHORIZED TECHNICIANS ARE ALLOWED TO REPAIR THE UNIT.
Read the manual upon unpacking the unit
Please read the manual carefully and observe all the instructions given.
Power supply
Only the power supply indicated on the rating plate must be used for this unit.
If you are not sure which power supply you have, please contact the distributor or the local
electricity supplier.
Earthing or polarisation
If the plug cannot be inserted properly into the socket, or if the plug does not fit, the unit must
not be used in your country.
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SAFETY PRECAUTIONS
A triangle with a lightning symbol draws the user’s attention to “dangerous voltage”
without insulation in the cabinet which may be high enough to entail a risk of electric
shock.
A triangle with an exclamation mark draws the user’s
attention to important instructions for use and maintenance in the accompanying manual,
which should be studied.
A symbol for CLASS II (double insulation)
WARNING:
TO MINIMISE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THE UNIT TO RAIN OR
MOISTURE. DO NOT OPEN THE CABINET AS IT CONTAINS DANGEROUS VOLTAGE. ONLY QUALIFIED
TECHNICIANS ARE ALLOWED TO CARRY OUT REPAIR AND SERVICE.
CAUTION:
If the plug of the power cord needs to be replaced, it is important that the replacement is identical to the
plug to be replaced, or that the new plug has been recommended by the manufacturer.
TO AVOID ELECTRICAL SHOCK, IT IS IMPORTANT TO INSERT THE PLUG CORRECTLY INTO THE SOCKET.

Ventilation
The cabinet is provided with slots and openings to ensure ventilation and reliable operation and to
protect the unit against overheating. Do not block or cover these openings. The openings must
never be blocked, for instance by placing the unit on a bed, a sofa, a carpet or similar surface .
Heat
Do not place the unit near sources of heat such as radiators, heat registers, ovens or other units
that produce heat.
Water and moisture
The unit must not be placed close to water, such as bathtub, wash basin, kitchen sink or laundry
tub, in a damp cellar or close to a swimming pools, etc.
Cleaning
Unplug the unit before cleaning. Do not use liquid detergents and aerosol cleaning agents. Please
use only a dry cloth for cleaning the unit.
Power cords
Wiring must be organised to
prevent people from stepping on the cables and to avoid pinching by objects placed on or beside
them. Take special care around sockets and plug boxes and where the power cords leave the unit.
Overloading
Make sure that wall sockets, extension cords and plug boxes are not overloaded as this may lead
to fire or electrical shock.
Lightning
Unplug the unit for additional
protection during thunderstorms or when the unit is not used for prolonged periods. This will
prevent damage to the unit from lightning and power surges.
Penetration of objects and liquid
Never push any foreign objects through the openings into the unit, as they may touch
dangerous
voltage points or short-circuit parts and thus cause fire or electric shock. Do not allow any
liquid to be spilled on or into the unit.
Accessories
Do not place the unit on unstable surfaces such as a trolley, stand, tripod, shelf or table.
The unit may fall and injure children or adults or be seriously damaged. Use only trolley,
stand, tripod, shelf or table that is very stable or provided with the unit. The unit must be
installed in accordance with the manufacturers instructions and by means of installation
equipment recommended by the manufacturer.
If the unit is placed on a trolley, the trolley must be moved very carefully. Sudden stops,
unnecessary force and uneven surfaces may cause the trolley to turn over.
Loads
Do not place heavy loads on the unit and do not step on it. The load may fall and cause
serious injury to persons or damage to the unit.
Damage
Unplug the unit and contact qualified technicians in
the following cases:
A) If the power cord or the plug is damaged.
B) If liquid has been spilled on the unit or objects
have fallen into the unit.
C) If the unit has been exposed to rain or water.
D) If the unit does not work properly after adhering to
the instructions in the operation manual. Only the settings described in the operation manual
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must be made as incorrect setting may result in damage and often will make it difficult for a
qualified technician to make the unit work properly again.
E) If the unit has been dropped or damaged in any other way.
F) When the operation of the unit changes
drastically, the unit requires service.
Service
Do not attempt to carry out any service work yourself. By opening or removing the cabinet,
you will be exposed to dangerous voltage or other hazards. Any service work should be
carried out by qualified technicians.
Spare parts
If spare parts are required, make sure that the service technician uses spare parts specified
by the manufacturer or spare parts with the same
characteristics as the original. Unauthorised spare parts may cause fire, electrical shock, etc.
Safety check
After service or repairs on the unit, ask the service technician to carry out a safety check to
ensure that the unit is ready for use.
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IMPORTANT INFORMATION
Handling instructions
The top and back panel of the unit may become warm after prolonged use. This is not due to a
defect.
Turn off the power when the unit is not used.
Protect the power cord
Follow the instructions below to prevent abnormal operation, electrical shock, fire or personal
injury: Hold the plug firmly when inserting it into the socket.
Avoid heat-producing devices.
Do not place objects on the power cord.
Do not carry out service work on or change the power cord.
Positioning
Do not place the unit in any of the following places:
-In sunlight, close to heat-producing devices or in an enclosed rack;
-In places with high temperatures (40C or more) or high relative humidity (90% or more);
-In dirty or dusty places as some internal parts may be damaged.
Please do not put your fingers or any other objects into the unit
Touching the internal parts is dangerous and may cause injury or damage. Do not open the cabinet.
Do not place any foreign matter in the unit.
Interference
Placing the amplifier near a television set, radio or video player may cause poor picture and sound
quality. In that case, move the amplifier further away from the television set, radio or video player.
Condensation
Condensation may occur in the following cases:
When the amplifier is moved directly from a cold to a warm place.
When the amplifier is used in a room where the radiator has just been switched on or a place where
the cold air from the air-conditioning system is directed at the unit.
If the amplifier is used in the summer in a warm and humid room just after it has been moved from
an air-conditioned room.
If there is steam or a high level of humidity in the room.
In case of condensation, the amplifier will not work properly. Turn off the unit. Unplug the unit and
leave it for 2-3 hours. The amplifier will then have adapted to the environment and any condensation
will have disappeared.
NOTES ON INSTALLATION
Your System Fidelity ST-270 should be placed on a firm, level surface. Avoid placing it in direct
sunlight or near sources of heat and damp. Always allow adequate ventilation and don’t place
it on a soft surface like a carpet. Don’t place it in an enclosed position such a bookcase or
cabinet that may impede the air-flow through the ventilation holes. The unit shall not be
exposed to dripping or splashing and that no objects filled with liquids, such as vases, shall be
placed on the unit.
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About connection to the mains
Do not turn on the power before all connections have been made correctly.
Check that all connections have been made correctly before turning on the
power.
Check that the mains voltage is 230-240V AC50Hz before turning on the power.
Check that all other connections have been made correctly before inserting the mains plug into the
wall socket.
Then insert the plug into a suitable socket.
If the unit is to be used abroad, you may need an adapter.
REMOTE CONTROL
Installation of batteries
Remove the cover at the back.
Position two batteries of the type AAA/R03/
UM4 in the battery compartment. Make sure
that the orientation of the batteries and
polarity is correct (see drawing).
Do not mix new and old batteries and do not
use different types of batteries.
If the remote control is not used for prolonged
periods, remove the batteries from the remote
control to avoid corrosion.
Using the remote control
Direct the remote control at the sensor on the front
panel of the tuner. When the remote control signal is received,
the unit reacts accordingly. The remote control works within a
range of 6m.
Sometimes the remote control may not work well in direct strong
light. You may have to move the tuner if it is a problem.
Malfunction may occur if remote controls of some other
equipments are used near the tuner.
Do not place any objects on the remote control, as the batteries
may become flat if a key is depressed constantly.
Make sure that there are no obstacles between remote control
and tuner.
Do not position the tuner behind tinted glass as it may reduce
the maximum range of the remote control.

ST-270 AM/FM TUNER
FUNCTIONS:
(1) Power: Sets the ST-270 in standby mode.
(3) 1-10 : Selects stored stations. If depressed
for more than two seconds, a station is stored
under the number concerned.
(4) RDS: Displays RDS and other information.
(5) AM/FM: press to choose between AM or
FM mode
(6) ST/MONO: press to choose between stereo
or mono reception (in case of very weak signal,
mono can offer better sound without noise.
(7) Autotune: Press once to automatic tune in
to AM/FM stations. Depress button for two
seconds to initiate an automatic search. At FM,
the autotune function will search for a station
at a higher frequency.
(8) MEMORY: press to store the tuned station
SA-270 AMPLIFIER FUNCTIONS:
(1) Power: Sets the SA-270 in standby mode.
(19-23) Input buttons: Selects input source
of amplifier.
(24) SPKRS A/B: selects which pair of speakers
are playing - press once for SPEAKERS A,
press one more time for SPEAKERS B, press
third time for SPEAKERS A+B
(25) Function: Adjusts treble/bass level,
loudness and balance by means of VOL + and -
(26) Volume +/-: Adjusts the master volume.
Some of the amplifier functions can only be
performed by means of the remote control.
Some functions are connected with the selected
signal input source. Some buttons on the
remote control may therefore not be available
if the corresponding signal input source has
not been selected.
CD-270 CD-PLAYER FUNCTIONS:
(1) Power: Sets the CD-270 in standby mode
(2) Eject: Opens the CD tray
(3) 1-10 : Selects desired track for playback
(11) PLAY/PAUSE: press once for playback. If
press during play, the disc is paused. Press
one more time for resume play.
(10) SKIP (IWW): Selects the previous track
(12) SKIP (XXI): Selects the next track
(9) SEARCH (XX): Search forward
(13) SEARCH (WW): Search back
(14)Random: All tracks are played in random
order
(15) Repeat: Repeats a single track or all tracks
on a CD
(16) Stop: Stops playback
(17) Program: Allows playback of the music
tracks on a CD in a certain order
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Remote control functions

FRONT PANEL DESCRIPTION
(1) Mains switch: Used to switch on and off the unit by switching the mains voltage.
(2) LED indicator: Lights blue indicating that the CD-player is on stand-by mode. Switched
off when the CD-player is in operation and LCD display is lit.
(3) VFD display: main display displaying most of the function performed.
(4) Auto: Press this button once and the tuner will start to automatically tuning and
store all available stations
(5) Memo: After manually tuning in station, press this button once and the tuned in
channel will be stored on the current preset
(6) ST/Mono: Changes between stereo and mono on the FM band
(7-8) Station -/+: Changes down and up through memorized stations
(9) FM/AM: Switches between FM and AM
(10) Direct access buttons to the first 5 stored stations
(11) Tuning: Turn this button clockwise to tune up in frequency, and counter clockwice to
tune down in frequency.
REAR PANEL DESCRIPTION
Stereo Output: Analogue stereo output. For connection to stereo amplifier with analogue
input.
Antenna: For connection of FM or AM antenna or for the communal or cable antenna
system.
AC input: For connection of mains voltage. Make sure that the plug has been correctly
inserted, and that the voltage corresponds to the text printed on the back panel of the
cabinet.
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Notes:
- When make the connection, please refer to the connection diagram. Make sure that all
the units are switched off during any connection. The RCA sockets on your ST-270 are
color coded for your convenience. Red and white are RIGHT and LEFT audio respectively.
Use high quality RCA-interconnect and antenna cables for optimum performance and
reliability.
ABOUT THE ANTENNA
As it applies to all other radios, the sound quality depends on the signal strength of the antenna
inputs.
The position of the radio in relation to the transmitter thus directly influences the quality of the
signal received. For an optimal result it is therefore very important that you make sure that the
radio receives the best possible antenna signal.
The FM antenna must be adjusted for the best possible result.
A good tip is to let the antenna end point in a vertical direction
and fix it on a wall.
FM ANTENNA AM
For an optimal result it is recommended to install a FM antenna
on the roof or on the loft, or to connect it to a cable system.
FM ANTENNA AM
For receiving AM station an AM loop antenna must be installed.
Adjust the antenna for the best possible reception.
FM ANTENNA AM
CONNECTIONS
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