Musical Fidelity A3cr Bedienungsanleitung

A3CR preamplifier Instructions for Use. Page 1of 9

INTRODUCTION

INSTRUCTIONS FOR USE

Thank you for purchasing the Musical Fidelity

A3CR remote control preamplifier.

Used properly and carefully, it should give you many

years of outstanding musical reproduction.

The A3CR preamplifier has been designed to operate

comfortably with the sonic capabilities of the new

SACD format. (Super Audio CD)

Aesthetically, the A3CR preamplifier is a perfect match for the

A3CR power amplifier, A3 CD player and the A3 Tuner.

Together, they form one of the finest hi-fi systems

that you can own today.

Dust regularly with a soft duster or soft brush but be

careful when using cleaning or polishing agents - they may

harm the surface finish.

If you have any questions about anything in your

audio system, please consult your dealer who is there to

help and advise you.

A3CR

PREAMPLIFIER

issue 2/12.10.2000

A3CR preamplifier Instructions for Use. Page 2of 9

SAFETY INFORMATION

IMPORTANT!

This unit is supplied in the U.K. with a mains lead fitted with a moulded 13 amp plug.

If, for any reason, you need to cut off this plug, please observe the following safety precautions.

Please dispose of the cut-off plug safely. It must not be plugged into a mains power supply.

The wires in the mains lead supplied with this appliance are coloured in accordance

with the following code:

Green and yellow..............Earth

Blue...............................Neutral

Brown................................Live

WARNING - This appliance must be earthed

As the colours of the wires of the mains lead of this appliance may not correspond with the

coloured markings identifying the terminals in your plug, proceed as follows:

The wire which is coloured green-and-yellow must be connected to the terminal in the plug

which is marked with the letter E or coloured green or green-and-yellow, or by the earth

symbol.

The wire which is coloured brown must be connected to the terminal which is marked with the

letter L or coloured red.

The wire which is coloured blue must be connected to the terminal which is marked with the

letter N or coloured black.

If connecting to a BS1363 plug, a 10 amp fuse must be used.

WARNING - Radio Frequency Interference (RFI)

This hi-fi product has been tested to ensure that its operation will not be adversely affected by

normal background levels of RFI. It is possible that if this product is subjected to abnormally

high levels of RFI the unit may be susceptible and not perform as expected. In the unlikely

event of this happening on a regular basis, please contact Musical Fidelity's service department.

The unit has also been tested to ensure that it does not radiate excessive levels of RFI that could

affect other pieces of electronic or electrical equipment.

The electronics in modern hi-fi equipment is complex and hence may be damaged by lightning.

It is possible that during electrical storms the operation of some equipment may be adversely

affected. For complete protection of your hi-fi system during such storms, mains plugs and aer-

ial leads should be disconnected.

Always ensure that when disconnecting and re-connecting your hi-fi equipment the mains

supply is switched off.

issue 1/02.02.2000

A3CR preamplifier Instructions for Use. Page 3of 9

GENERAL ADVICE

INSTALLATION PRECAUTIONS and USER INFORMATION

Your new A3CR preamplifier is designed and built to provide trouble-free performance, but as

with all electronic devices it is necessary to observe a few precautions.

Heed all warnings on the back of the unit.

Only connect the preamplifier to a mains outlet of the voltage marked on the back of the

unit.

The A3CR preamplifier will operate in accordance with its specifications as long as the

environmental conditions are kept in the following ranges:-

Temperature 5 to 45 degrees Celsius

Humidity 10 to 90% non condensing

Position the mains lead and signal interconnects where they are not likely to be walked

on or trapped by items placed on them.

Do not use near water. The unit shall not be exposed to dripping or splashing and no

objects filled with liquids, such as vases, shall be placed on the unit.

Do not place the unit near direct heat sources such as radiators or other equipment that

produces heat.

Do not place the unit where it can be subjected to direct sun-light.

Do not remove any covers or try to gain access to the inside. The warranty is invalid if

the unit has been tampered with. There are no user adjustments within. Refer all service

work to an authorised Musical Fidelity agent.

Dust regularly with a soft duster or soft brush but be careful when using cleaning or

polishing agents -they may harm the surface finish.

There are fuses in the unit. In the unlikely event that one blows, take your unit to your

audio dealer. Do NOT try to replace the fuse yourself or you will invalidate the warranty.

No naked flame sources, such as lighted candles, should be placed on the unit.

Keep out of reach of children.

For battery disposal, refer to the manufacturers instructions.

Important! Unauthorised opening of the equipment will invalidate any warranty claims.

Note: To help your dealer identify your amplifier if after-sales service is required, please quote

the serial number located on the rear panel of the unit.

issue 2/12.10.2000

A3CR preamplifier Instructions for Use. Page 4of 9

CONNECTIONS AND FACILITIES

issue 2/12.10.2000

MUSICAL FIDELITY

A3 DUAL MONO PREAMPLIFIER

THISAPPLIANCE

EARTHED

MUST BE

13 14 15 16 17 18 19 20 21 22 23 24

A3CR preamplifier front panel layout

1Power on indicator LED

2Power on/off switch

3Mute LED

4Volume control

5Infra red receiver

6Phono input select button and LED

7CD input select button and LED

8Tuner input select button and LED

9AUX input select button and LED

10 SACD input select button and LED

11 TAPE input select button and LED

12 Tape monitor button and LED

A3CR preamplifier back panel layout

13 RIGHT output

14 Phono earth connection

15 MM/MC selection switch

16 Phono input

17 CD input

18 Tuner input

19 AUX input

20 SACD input

21 TAPE input

22 TAPE RECORD output

23 LEFT output

24 IEC mains inlet

POWER

MUSICAL FIDELITY A3 DUAL MONO PREAMPLIFIER

TUNER

IRR

PHONO CD

MONITOR

SACDAUX TAPE

1 2 3 4 6 5 7 8 9 10 12 11

issue 2/12.10.2000

CONNECTIONS

A3CR preamplifier Instructions for Use. Page 5of 9

Before switching on the stereo system

please read carefully the instructions on the

following pages. The functional arrange-

ment of the controls makes the stereo sys-

tem easy to operate. You should neverthe-

less study these instructions to get the best

from your equipment.

BEFORE YOU SWITCH ON

You should make all connections to the

A3CR preamplifier before switching on.

Follow this routine before you listen for

the first time, and each time you change

any connections.

1Check all the inputs and outputs to

the A3CR preamplifier.

2Then check again.

3Turn the volume control to

minimum.

4Now you can switch on the power.

Wait for the power-up mute circuit to

switch off. approx. (15 to 20

seconds) The red LED in the vol-

ume control will now light.

Carefully advance the volume to the

level you want and enjoy the music.

NOTE

If the unit was switched off while

muted by the remote control, it will

still be muted next time it is switched

on. Press MUTE on the remote con-

trol to switch mute off. (LED on is

mute off, LED off is mute on)

For connecting the inputs or the outputs

Musical Fidelity recommend either the

600mm X-LINX signal interconnects or

the highly rated Nu-Vista interconnects

with integral RFI suppression. Various

lengths are available in Nu-Vista intercon-

nect cables.

Please contact your local dealer for more

information

OUTPUTCONNECTIONS

All connections should be made with the

power OFF.

The A3CR preamplifier has a right hand

line output and a left hand line output.

Plug the Red phono plug into the right out-

put and the other plug into the left output.

Now connect the other ends to the input of

your power amplifier, red to right input

and the other to the left input.

INPUT CONNECTIONS

All connections should be made with the

power OFF.

The A3CR preamplifier has 1 phono input

which can be used for either moving mag-

net (MM) or moving coil (MC) cartridges.

The type of cartridge is selected by the

switch on the back panel of the preamplifi-

er. (See Phono section of this manual for

further information)

The A3CR preamplifier also has 5 line

level inputs - CD, Tuner, AUX, SACD,

and Tape.

All line level inputs are electrically identi-

cal and are suitable for use with any source

component with an output voltage in the

hundreds of millivolts (mV). This includes

CD players, SACD players, tuners, tape

machines and the audio outputs of video

recorders, televisions, DVD and LaserDisc

players etc.

PHONO INPUT

The A3CR preamplifier has a phono input

for turntables fitted with either a moving

magnet cartridge (MM) or a moving coil

cartridge (MC). Use the MM/MC push

button switch to select the type of cartridge

that is fitted to you turntable.

IMPORTANT NOTE Do not operate the

MM/MC switch with the volume turned

up.

Some turntable/pick-up arm combinations

are fitted with an extra wire called a chas-

sis earth, which should be connected to the

green earth terminal on the back of the

amplifier.

TAPE RECORDING

The A3CR preamplifier has a single tape

circuit with facilities for off-tape monitor-

ing with 3-head cassette decks.

Connection of your tape machine to the

A3CR preamplifier should be as follows.

The tape machine's Tape/Line outputs go

to the A3CR preamplifier's 'Tape' input

sockets.

The tape machine's Tape/Line inputs go to

the A3CR preamplifier's 'Tape Record' out-

put.

To record, simply select the required

source with the source selector button on

the front panel. The selected source will

now be sent to the 'Tape Record' output for

recording by the attached tape machine.

You will also be able to hear the selected

source through the loudspeakers.

Note - you can adjust the listening level

with the volume control without affecting

the recording level.

OPERATION

REMOTE CONTROL

The remote control enables you to activate

the main functions of the amplifier from

the comfort of your armchair. Pressing the

volume up or down buttons on the remote

handset will advance the motorised volume

control in the desired direction.

Input selection can also be controlled with

the remote handset.

The mute button on the remote handset

mutes the output. To show the amplifier is

muted the red LED in the volume control

goes out.

Press the mute button again to switch the

mute off, the red led will light again.

The following should be noted when oper-

ating the amplifier using the remote con-

trol. The Infra Red receiver is the small

red lens marked I.R.R. situated on the front

panel. It is important to ensure that when

operating the remote control, the line-of-

sight from the remote to the infra red

receiver is not obstructed.

- Point the remote control (transmit-

ter) towards the I.R. lens (receiver)

on the amplifier.

- Visual contact must exist between

the transmitter and receiver.

- If the range of the remote control

decreases dramatically, replace the

batteries with new ones. (dispose of

old batteries as per the manufacturers

instructions)

issue 2/12.10.2000 A3CR preamplifier Instructions for Use. Page 6of 9

OPERATION

A3CR preamplifier Instructions for Use. Page 7of 9

issue 2/12.10.2000

OFF TAPE MONITORING

In conjunction with a 3-head cassette deck,

off-tape monitoring allows the user to

compare the recorded to original sound

whilst a recording is made. To do this,

first select the required source in the nor-

mal way and start recording. The Tape

Monitor button on the front panel can now

be used to switch between the source sig-

nal and the recorded signal allowing direct

comparison.

The red LED just above the tape monitor

button indicates that tape monitor is select-

ed.

Note that tape (the recorded signal) is

selected when the LED is lit. On some 3-

head cassette decks there is an additional

'tape/source' switch which will need to be

in the 'tape' position for the above to work

If you are in any doubt consult your tape

machine's manual or your dealer.

TROUBLESHOOTING

issue 2/12.10.2000

Problem Probable Cause Remedy

No power when POWER

is pressed

Mains plug not inserted

correctly Plug in securely

No sound

Volume control is set

to minimum Turn up the volume

Wrong input selected Select correct input

Mute is selected Press mute button on

remote control

Unit has not yet come out

of power-up mute Wait 10-15 seconds on

power-up for unit to

un-mute

Tape Monitor button is

depressed Press Tape monitor

button

Remote control unit will

not operate

POWER switch set to OFF Set switch to ON

Batteries not inserted in

remote control unit Insert batteries

Batteries flat Change batteries

Remote control not pointed at

IR receiver lens Ensure line of sight

between remote control

and IR receiver lens is not

obstructed

Range of remote control

has dramatically reduced

Batteries running out Change batteries

Basic troubleshooting of an amplifier is similar to troubleshooting of any other electrical or

electronic equipment. Always check the most obvious possible causes first. To give you a few

ideas of what to look for, check the following:

If none of these actions effect a cure, please contact your dealer, or an authorised Musical

Fidelity service agent. Remember, never open the case of the A3CR preamplifier yourself, as

this will invalidate the guarantee.

A3CR preamplifier Instructions for Use. Page 8of 9

issue 2/12.10.2000

Inputs 5 Line,

1 Phono, MM or MC switchable

THD < 0.007% 20Hz - 20kHz

< 0.004% 20Hz - 20kHz ‘A’ weighted

Frequency response 10Hz - 100kHz +/- 1.5dB

Sensitivity (for 1V RMS output) Line 220mV

Phono MM 2.5mV MC 350uV

S/N ratio (ref 1V RMS output) MM phono >-80dB 'A' weighted

MC phono >-65dB 'A' weighted

Line >-86dB ‘A’ weighted

Dimensions 440 x 95 x 400mm (W x H x D)

Height includes feet, depth includes terminals

Weight 13 kg (un-boxed)

Power requirements 100/115/230V AC 50/60Hz

(Factory preset)

Power consumption 20 watts (maximum)

Standard accessories Remote control handset

IEC type mains lead

2 x batteries (AAA, MN2400, LR03)

A3CR preamplifier Instructions for Use. Page 9of 9

Musical Fidelity reserves the right to make improvements which may result in specification or feature changes without notice.

SPECIFICATIONS

A3CR

PREAMPLIFIER

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