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AVR250
E-10
AVR250
E-11
English
Connecting the AM and FM antennas
FM antenna
An FM antenna is required to receive VHF radio signals.
Although a FM ribbon antenna is supplied as an accessory to the AVR250, for optimal FM radio reception
a roof- or loft-mounted aerial is advised as this will give superior reception. (It is recommended that any
roof-top antenna is tted by an experienced contractor as a contractor will be able to align your antenna
to the nearest FM transmitter.)
In some areas cable radio may be available or, in an apartment building, a distributed antenna system
may be installed. In either of these cases you should have sockets in your home marked FM or VHF (do
not use those marked TV), which should be connected to the FM in socket
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of the AVR250.
If you wish to use the supplied FM ribbon cable, mount this as high up as possible on a wall with the ‘T’-
elements positioned horizontally. Try each usable wall of the room to see which gives best reception and
use tacks or adhesive tape to secure the aerial in a T shape (note that no tacks should come into contact
with the internal wire of the aerial). When assembled (see box, right), the plug on the ribbon cable
should be connected to the FM in socket
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of the AVR250.
AM antenna
An AM antenna is required to receive AM/medium wave radio signals.
An AM loop antenna is supplied as an accessory with the AVR250. This should be attached to
the AM antenna inputs
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with one end connected to AM and the other to Ground (it does not
matter which way round this antenna is tted). Rotate the antenna to discover which position
gives the best reception.
In areas of weak reception, or when the AVR250 is in use inside a steel framed building (such
as an apartment building), you can use a wire between 3 and 5 metres long to strengthen
reception. Mount this high up outside the building (if possible) and connect one end of this wire
to the AM antenna input in addition to the loop aerial supplied (do not disconnect the AM loop
antenna).
AM STEP SIZE
The AM tuning ‘step size’ needs to be set according to your location. This is done using the switch on the
rear panel
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: set it to 10kHz if you are in North America or 9kHz anywhere else. Note that this should
be set correctly even if you do not intend to use AM reception as it also alters some FM tuner settings
for use in North America.
Control connections
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(REMOTE) OUT. This outputs any remote control signal that is received by either the front panel or
from one of the remote control connections. It allows remote control of source components; control is
possible by either connecting this output to the devices to be controlled via the 3.5mm IR jack socket
(Arcam units only) or by using an IR emitter stuck to the centre of the IR sensor window on the source
component (such as a Xantech 283MW mini emitter).
et
IN LOCAL. Use with a local IR receiver when the AVR250 front panel IR receiver is obstructed.
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IN ZONE 2. This allows the AVR250 to be controlled remotely from Zone 2 via infrared remote
control (see section ‘Zone 2 connections’ above for further details).
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RS232 CONTROL Use with control devices having an RS232 serial port (for example, Crestron and
AMX touch screen controllers). This connection is also used for upgrading control software. See the
sections at the end of this manual for control and programming information.
Trigger outputs
There are three trigger output sockets on the AVR250, each of which is
a 3.5mm stereo jack with two contacts, ‘tip’ and ‘ring’. See the tables for
technical information on the trigger outputs.
er
12V TRIGGER. This can be used for turning on and off automatically
power amps or source equipment for the main zone and Zone 2. The trigger
lead is wired as shown in the panel.
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VIDEO TRIGGER 1,
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VIDEO TRIGGER 2. These trigger outputs have
different functions depending on how the ‘Video Status’ has been set in the ‘General Settings’ menu. See
page 10 for full details.
Connecting to a power supply
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POWER INLET. The AVR250 has a dual voltage power supply that can be switched between 120V and
230V AC. As supplied, this switch should be set correctly for your local supply.
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GROUND LIFT switch. In complex set-ups that include satellite inputs or radio antennas, grounding
the unit may increase the level of background hum or buzz in the loudspeakers. If this occurs, set the
GROUND LIFT switch to lift the signal ground from the chassis ground.
DO NOT REMOVE the safety earth from the mains cable under any circumstances.
Mains lead
The appliance is normally supplied with a moulded mains plug already tted to the lead. Check that the
plug supplied with the unit ts your supply. If your mains plug is different, consult your Arcam dealer.
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. Should you require a new mains lead,
contact your Arcam dealer.
Plugging in
Push the plug (IEC line socket) of the power cable supplied with the unit into the power input socket
(
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) in the back of the unit. Make sure it is pushed in rmly.
Put the plug on the other end of the cable into your power supply socket and switch the socket on.
REMOTE
RS232 CONTROL
IN
ZONE
2
IN
LOCAL
OUT
1/RGB 2/S-VID
12V
TRIGGER
(Z1 & Z2)
Connection Function Voltage
Tip Main zone on On = 12V, 30mA
Off = 0V
Ring Zone 2 on On = 12V, 30mA
Off = 0V
Sleeve Ground 0V
AC
INLET
GROUND
LIFT
GROUND
230
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AM
GND
FM
(USA) 10K
(EU) 9K
AM STEP
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Connecting the plug to
the FM ribbon cable:
1) loosen the two screws
on the plug;
2) insert the spade
connectors of the ribbon
cable under the screws;
3) re-tighten the screws
onto the connectors.