Arcam AVR250 Connecting the AM and FM antennas, Connecting to a power supply, AM antenna, fo fp

VIDEO TRIGGER 1, fl

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 fitted 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 fr 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 fr of the AVR250.

AM

GND

FM

AM STEP

(USA) 10K (EU) 9K

fq

fr

fs

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 fq with one end connected to AM and the other to Ground (it does not matter which way round this antenna is fitted). 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).

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.

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 fs: 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
es (REMOTE) OUT. This outputs any remote control signal that is received by either the front panel or				1/RGB	2/S-VID		REMOTE
									IN
from one of the remote control connections. It allows remote control of source components; control is								ZONE
									2
possible by either connecting this output to the devices to be controlled via the 3.5mm IR jack socket			12V						IN
(Arcam units only) or by using an IR emitter stuck to the centre of the IR sensor window on the source							OUT
			TRIGGER					LOCAL
component (such as a Xantech 283MW mini emitter).			(Z1 & Z2)
et IN LOCAL. Use with a local IR receiver when the AVR250 front panel IR receiver is obstructed.
				�� �� ��
fk 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).
fn 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						RS232 CONTROL
sections at the end of this manual for control and programming information.
Trigger outputs	Connection	Function		Voltage
There are three trigger output sockets on the AVR250, each of which is
	Tip	Main zone on		On = 12V, 30mA
a 3.5mm stereo jack with two contacts, ‘tip’ and ‘ring’. See the tables for
				Off = 0V
technical information on the trigger outputs.
	Ring	Zone 2 on		On = 12V, 30mA
er 12V TRIGGER. This can be used for turning on and off automatically
				Off = 0V
power amps or source equipment for the main zone and Zone 2. The trigger
	Sleeve	Ground		0V
lead is wired as shown in the panel.

AVR250

E-10

fmVIDEO 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

fo 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.

fp 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 fitted to the lead. Check that the plug supplied with the unit fits 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 (fo) in the back of the unit. Make sure it is pushed in firmly.

Put the plug on the other end of the cable into your power supply socket and switch the socket on.

AC

INLET

fo

fp

GROUND GROUND LIFT

230