Mission 2 Owners manual

Cyrus 1 and Cyrus 2 Manual

CYRUS AMPLIFIERS

INTRODUCTION

Congratulations on your purchase of the Cyrus integrated stereo amplifier.

The Cyrus range of amplifiers are precision manufactured to the highest
standards and specifications. This results in a highly consistent and
reliable product.

This manual contains installation and operating instructions to enable the
user to connect up and operate the amplifier correctly, thus ensuring the
greatest satisfaction and long term use.

WARNINGS

Your Cyrus amplifier is factory set to operate from a fixed mains supply
voltage. This voltage is marked on a label on the rear of the unit. Before
connecting, check that this voltage is the same as your mains supply.

BEFORE CONNECTING to the mains supply ensure that the On/Off switch
is set to off (down).

DO NOT remove the amplifier cover under any circumstances.

DO NOT make any connections to, or disconnections from the amplifier
unless the amplifier is OFF and the VOLUME control is set to "MIN".

DO NOT change the position of the Selector switches unless the VOLUME
control is set to "MIN".

DO NOT ever select tape on both selector switches at the same time.

DO NOT allow the positive and negative speaker leads to touch.

DO NOT obstruct the ventilation grille on the top of the amplifier. Ensure
the unit has adequate all round ventilation.

DO NOT expose your amplifier to excessive cold or heat, direct sunlight,
humidity or water.

DO NOT use any chemicals for cleaning your Cyrus amplifier. Only a
slightly damp, soft cloth should be used.

The original packing should be retained and always used when transporting
the unit.

INSTALLATION

MAINS SUPPLY

A label at the rear of your Cyrus amplifier shows the appropriate mains
supply voltage and fuse rating of the unit. If the Tnains supply voltage in
your area is different, contact your dealer or a Mission service organisation.

The amplifier is connected to the mains supply via an IEC socket and the
mains cable. The IEC socket has an integral mains fuse. When connecting
the mains supply, ensure that the cable is connected to the amplifier first.

MAINS CABLE

The mains cable supplied with the unit is a three core type, and has an
integral plug attached. Units supplied for the UK market do not have a
mains plug, and therefore, an appropriate plug must be wired according to
the colour-code below and on the label attached to the lead.

All types of mains lead supplied (all countries), have a moulded IEC plug
which matches the IEC socket of your amplifier.

FITTING A MAINS PLUG (UK ONLY)

The mains supply cable should be attached to a standard 13 Amp mains
plug fitted with a 3 Amp fuse.

The wires in the mains supply cable are colour coded as follows;

• BROWN = Live

• BLUE = Neutral

• GREEN/YELLOW. = Earth

The Brown wire must be connected to the terminal that is marked "L" or
coloured RED. The Blue wire must be connected to the terminal that is
marked "N" or coloured BLACK. The GREEN/YELLOW wire must be
connected to the terminal that is marked with the letter "E" or coloured
GREEN or coloured GREEN AND YELLOW.

MAINS FUSE

Cyrus I:

• UK/Europe - 220/240V = T1A/20mm

• N.America/Far East - 100/120 = T1.6A/20mm

Cyrus II:

• UK/Europe - 220/240V = T1.25A/20mm

• N.America/Far East- 100/120V = T2.5A/2Omm

SITING THE AMPLIFIER

Your Cyrus amplifier can be sited as a free standing unit or stacked with
other units in an audio rack. However, since the power amplifier produces
a substantial amount of heat, positioning the unit at the bottom of the rack
should be avoided. Convected heat from the amplifier could adversely
affect other units stacked above, as well as overheat and damage your
amplifier.

The amplifier must NOT be sited near a source of heat or in a position
exposed to direct sunlight.

CONNECTIONS

Before making any connections to your amplifier, ensure that all units are
switched OFF, and disconnected from the mains.

Refer to the wiring diagram of your particular Cyrus amplifier for
connection details.

For best results, the loudspeaker cables used should be of high purity
copper and as short as possible. We strongly recommend our own Mission
or Cyrus loudspeaker cables.

The phono ground terminal (GND), on the rear panel, is provided for
connecting to the appropriate ground wire from your tonearm/turntable.
This will minimise the possibility of hum being induced in the phono
circuitry.

All the RCA phono sockets are colour-coded WHITE for the left and RED
for the right channel.

In the case of the Loudspeaker output terminals, RED is for positive and
BLACK is for negative.

Cyrus One Installation Diagram

Cyrus Two Installation Diagram

IN CASE OF TROUBLE

CYRUS I AND CYRUS II

THE POWER L.E.D. DOES NOT ILLUMINATE AND THERE IS NO SOUND

Check that the unit is plugged into the mains socket, and the power,
switch is ON.

Check the mains fuse.

AS ABOVE BUT THERE IS SOUND FROM THE SPEAKERS

The LE.D. is faulty.

SOUND FROM ONE SPEAKER ONLY

Check the fault does not occur on other inputs by listening to other
sources. If the fault persists then continue with the following. If not, the

relevant source is at fault. Check input and loudspeaker connections of the
channel without sound.

Check loudspeaker fuse if any.

Interchange the loudspeaker connections between Left and Right channels.
Observe whether the fault changes over. If so then the amplifier has a
faulty channel. If the fault stays in the same channel, then the loudspeaker
is at fault.

NO SOUND FROM ANY SPEAKER

Check that the amplifier is On.

Check the sound on the other sources.

If problem persists then the internal fuses of the amplifier may have blown.
Refer the amplifier to your dealer.

HUM OR CRACKLING SOUND FROM ONE OR BOTH SPEAKERS

Check there are no faulty connections along the speaker cables and the
interconnect cables.

Check to make sure the turntable ground is connected to the GND terminal
on the rear panel.

Check that the turntable interconnect is not dressed next to any mains
leads.

MUSIC REPRODUCTION SOUNDS HOLLOW AND STRANGE

Check the speaker cables are connected to the amplifier and speakers
correctly.

If in Phono mode, check the cartridge has been wired correctly.

OPERATING INSTRUCTIONS

CYRUS I AMPLIFIER

1. Volume Control: Adjusts the power amplifier output level to the
Loudspeakers from zero to the maximum level.

2. Balance Control: Adjustment of the Balance Control knob swings the
output level to the left or right Loudspeaker by a maximum of 5 dB.

3. "Listen" Selector Switch: Selects the desired source for listening.
Starting from the fully clockwise position, the sources which may be
selected are as follows:

• Phono: Record Player; Moving Coil or Moving Magnet Cartridge.

• Mute: No source selected. May also be used to erase recorded tape.

• CD: Compact Disc Digital Audio Player.

• Tuner: FM/AM Hi- Fi Tuner.

• Video: Hi-Fi Video Recorder, a second Tape Deck (playback only).

• Tape: Tape Recorder used for record and playback (Including R-

DAT).

4. "Record" Selector Switch: Selects the desired source for recording via
the 'Tape-out" socket. Starting from the fully anti-clockwise position, the
sources which may be selected are identical to those on the "Listen"
Selector Switch.