Arcam DT91 User Manual
DT91HANDBOOK/MANUEL/HANDBUCH/HANDLEIDING
Arcam DT91 digital radio tuner
Tuner radio numérique DT91 Arcam
Digitaler Radiotuner Arcam DT91
Arcam DT91 digitale radio tuner
Eng lish
Fra nçais
Deu tsch
Ned erlands
DT91
E-2
Eng lish
DT91
E-3
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
ATTENTION
CAUTION
RISK OF ELECTRIC
SHOCK DO NOT OPEN
CAUTION: To reduce the risk of electric shock, do not remove cover (or back). No user serviceable parts inside. Refer servicing
to qualied service personnel.
WARNING: To reduce the risk of re or electric shock, do not expose this apparatus to rain or moisture.
The lightning ash with an arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated
‘dangerous voltage’ within the product’s enclosure that may be of sufcient magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the product.
CAUTION: In Canada and the USA, to prevent electric shock, match the wide blade of the plug to the wide slot in the socket and
insert the plug fully into the socket.
Safety guidelines
Important safety instructions
This product is designed and manufactured to meet strict
quality and safety standards. However, you should be aware
of the following installation and operation precautions:
1. Take heed of warnings and instructions
You should read all the safety and operating instructions
before operating this appliance. Retain this handbook for
future reference and adhere to all warnings in the handbook
or on the appliance.
2. Water and moisture
The presence of electricity near water can be dangerous. Do
not use the appliance near water – for example next to a
bathtub, washbowl, kitchen sink, in a wet basement or near
a swimming pool, etc.
3. Object or liquid entry
Take care that objects do not fall and liquids are not
spilled into the enclosure through any openings. Liquid
lled objects such as vases should not be placed on the
equipment.
4. Ventilation
Do not place the equipment on a bed, sofa, rug or similar
soft surface, or in an enclosed bookcase or cabinet, since
ventilation may be impeded.
5. Heat
Locate the appliance away from naked ames or heat
producing equipment such as radiators, stoves or other
appliances (including other ampliers) that produce heat.
6. Climate
The appliance has been designed for use in moderate
climates.
7. Racks and stands
Only use a rack or stand that is recommended for use with
audio equipment. If the equipment is on a portable rack it
should be moved with great care, to avoid overturning the
combination.
8. Cleaning
Unplug the unit from the mains supply before cleaning.
The case should normally only require a wipe with a soft,
damp, lint-free cloth. Do not use paint thinners or other
chemical solvents for cleaning.
We do not advise the use of furniture cleaning sprays or
polishes as they can cause indelible white marks if the unit
is subsequently wiped with a damp cloth.
9. Power sources
Only connect the appliance to a power supply of the type
described in the operating instructions or as marked on the
appliance.
This is a class 1 appliance and must be earthed.
10. 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 and plugs,
and the point where they exit from the appliance.
11. Grounding
Ensure that the grounding means of the appliance is not
defeated.
12. Power lines
Locate any outdoor antenna/aerial away from power lines.
13. Non-use periods
If the unit has a stand-by function, a small amount of
current will continue to ow into the equipment in this
mode. Unplug the power cord of the appliance from the
outlet if left unused for a long period of time.
14. Abnormal smell
If an abnormal smell or smoke is detected from the
appliance, turn the power off immediately and unplug the
unit from the wall outlet. Contact your dealer immediately.
15. Servicing
You should not attempt to service the appliance beyond that
described in this handbook. All other servicing should be
referred to qualied service personnel.
16. Damage requiring service
The appliance should be serviced by qualied service
personnel when:
A. the power-supply cord or the plug has been damaged,
or
B. objects have fallen, or liquid has spilled into the
appliance, or
C. the appliance has been exposed to rain, or
D. the appliance does not appear to operate normally or
exhibits a marked change in performance, or
E. the appliance has been dropped or the enclosure
damaged.
Safety compliance
This product has been designed to meet the IEC 60065
international electrical safety standard.
Eng lish
DT91
E-3
Contents
Safety guidelines.......................................E-2
Important safety instructions .................E-2
Safety compliance ................................E-2
Using this handbook.............................. E-3
Positioning the unit ............................... E-4
Connecting up......................................E-4
Installation ............................................... E-4
Setting up the aerial .............................E-5
Using your tuner .......................................E-6
Front-panel controls..............................E-6
Searching for radio stations: DAB ...........E-6
Search for radio stations: FM.................. E-7
Programming a preset radio station.........E-7
Changing the display mode .................... E-7
The CR-389D remote control....................... E-8
Technical specications............................... E-9
Remote-control codes .............................. E-10
Guarantee .............................................. E-10
On line registration ............................. E-10
Appendix: Serial programming interface ..... E-11
Introduction....................................... E-11
Command and response formats........... E-11
Command Specications...................... E-12
Using this handbook
This handbook has been designed to give you all the
information you need to install, connect, set-up and use the
Arcam DiVA DT91. The remote control handset supplied with
the equipment is also described.
It may be that the DT91 has been installed and set-up as
part of your Hi-Fi installation by a qualied Arcam dealer.
In this case, you may wish to skip the sections of this
handbook dealing with installation and setting up the unit,
and move directly to the sections dealing with using the
player. Use the contents list to guide you to these sections.
Safety
Safety guidelines are set out on page 2 of this handbook.
Many of these items are common sense precautions, but for
your own safety, and to ensure that you do not damage the
unit, we recommend that you read them. This is a class 1
product and requires an earth connection.
DT91
E-3
DT91
E-4
Eng lish
DT91
E-5
Installation
POWER INLET
115/230V
AER IAL
INP UT
L
R
AUDIO OUTPUTS
1
2
COAX
OPTICAL
DIG ITAL O UT
REMOTE
IN
PROGRAM RS232
SUPPLY
VOLTAGE
115V
230V
Positioning the unit
n Place the DT91 on a level, rm, surface, avoiding direct sunlight and sources of heat or damp.
n Avoid placing the DT91 on top of a power ampli er or other source of heat.
n The DT91 may run warm during normal operation, so avoid placing the DT91 in an enclosed
space such as a bookcase or closed cabinet unless there is good ventilation.
n Make sure the remote-control receiver in the centre of the front panel display is unobstructed,
otherwise remote-control will be unreliable. If line-of-sight is impractical, a remote-control
repeater can be used with the rear panel connector. (see below).
n Avoid placing a record deck on top of this unit. Record decks are very sensitive to the noise
generated by mains power supplies which will be heard as ‘hum’ if the record deck is too close.
Connecting up
Analogue audio outputs
Two pairs of stereo analogue outputs are
provided by the DT91, both of which provide
the same signals. Connect one pair of these
outputs to your ampli er using a suitable
stereo phono cable. The second output pair
may be connected to some other audio
device, as desired, such as a cassette deck.
Note that interconnecting cables are not
supplied with this tuner. We recommend
the use of high-quality screened cables,
since inferior-quality cables will degrade
the overall quality of your system. Use
only cables that are designed for an audio
application as other cables will have
different impedance characteristics that will
degrade the performance of your system
(for example, do not use cabling intended
for video use to carry audio signals).
All cables should be kept as short as is
practically possible.
It is good practice when connecting your
equipment to make sure that the mains
power-supply cabling is kept as far away as
possible from your audio cables. This avoids
unwanted noise in the audio signals.
Digital outputs
The DT91 is tted with both optical and co-axial
digital audio outputs; the two carry the same
information at all times. If you wish, these can
be connected to an external DAC or your AV
receiver, which may enhance the nal audio quality.
Alternatively, they can also be used to connect this
tuner to a digital recording device (such as a CD-R
or Minidisc recorder) for direct recording.
When listening to a DAB radio station, these outputs
carry audio with a sample rate of 48kHz; when an
FM station is being received, the sample rate is
32kHz.
Remote control in
If you are using this tuner
with an ampli er that also
features a remote bus
(such as the Arcam DiVA
AVR300) you can connect
the REMOTE OUT of the
ampli er to the REMOTE IN
of the tuner using a 3.5mm
jack lead.
This allows the tuner to be
positioned out of sight while
still offering remote control,
since commands are passed
through the ampli er. It
can also be used to route
control signals for multiroom use.
The remote control input
requires a mono 3.5mm
jack, with the tip active and
the sleeve grounded.
The remote control signals
must be in modulated RC5
format, with a voltage level
of between 5V and 12V.
Aerial input socket
The coaxial cable from
the aerial should be tted
with a 50Ω F-type (screw)
connector. Connect this to
the aerial socket on the
back of this tuner, pushing
the pin into the centre of
the socket, then screwing
on the cover to lock in
place.
Take care not to overtighten the F-connector
( nger tighten only – do
not use tools as this may
damage the circuit board
behind the connector).
See ‘Setting up the aerial’
for further information on
the aerial type to use.
Mains lead
The appliance is normally supplied with
a moulded mains plug already tted to
the lead. If for any reason the plug needs
to be removed, it must be disposed of
immediately and securely, as it is a potential
shock hazard when inserted into the mains
socket.
Check that the plug supplied with the unit
ts your supply and that your mains supply
voltage agrees with the voltage setting
(115V or 230V) indicated on the rear panel
of the unit.
If your mains supply voltage or mains plug
is different, or you require a new lead,
please consult your Arcam dealer.
PLUGGING-IN
Push the plug (IEC line socket) of the power
cable supplied with the unit into the socket
(POWER INLET) in the back of the unit.
Make sure it is pushed in rmly.
RS232 interface
The serial interface
is available for
controlling the DT91
from a computer
or other controller.
The remote control
protocol is described
in the Appendix to this
handbook.
Supply voltage
Move the slider to 115V
or 230V, depending
on the mains supply
voltage in your area.
Eng lish
DT91
E-5
Setting up the aerial
Your new Arcam tuner is capable of superb reception, but only if it is receiving a
good quality transmission signal.
If the transmission signal is strong in your area then the supplied indoor aerial
may be sufcient (it should be hung on a wall with both wires fully stretched out
vertically). An external aerial is recommended in order to receive the highest number
of services.
DAB transmissions can be in either ‘Band III’ or the ‘L-band’ (or both). To
determine the transmission frequency in your area, contact your dealer, or refer to
www.WorldDAB.org. In Band III transmission areas, use a multi-element Yagi
aerial if you are a long way from a transmitter, or use an omnidirectional or folded
dipole aerial if you are close to more than one transmitter (in the U.K., a Band III
region, this should be mounted with the elements vertically, as the transmissions are
vertically polarised). If the DAB services in your area are transmitted on L-band then
consult your dealer for advice on the best aerial to use.
You may have noticed that, although the DT91 supports both DAB and FM radio,
there is only one aerial connector on the rear panel. If you wish to feed signals from
both aerial types into the unit, a low-loss signal combiner must be used, as shown in
the diagram. Otherwise, choose the aerial type for the medium you use most often.
Whether you decide to install an external aerial, or opt to use the supplied ribbon
cable, it should be connected to the F-type (screw) connector labelled AERIAL INPUT
on the rear of the unit.
The type of aerial you should use depends on your listening preferences and the local conditions.
If you listen exclusively to FM transmissions, for example, and the FM signal strength is strong
in your area, then a simple omni-directional aerial mounted in your loft or on your roof may be
sufcient. Listening to DAB in a weak signal area will require a high-gain, roof-mounted aerial.
For the best reception of both DAB and FM signals, an aerial combiner box may be required
(as shown in the diagram above). This combines the signals received by two aerials (one for
DAB, the other for FM), into one cable that then connects to the DT91. If an aerial combiner
is not used, the single aerial chosen for both DAB and FM reception may not give optimum
performance in some regions.
For the best advice, we recommend that you contact your local Arcam dealer or an aerial
installation expert.
VHF/FM
DAB
Aerial combiner
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