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A308 Integrated  Amplifier                   Instructions  for  use   Page 8 of 9

Issue 3: March 2003

PROBLEMS ?

Basic problem-solving with an amplifier is similar to troubleshooting 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 A308 integrated amplifier your-
self, as this will invalidate the guarantee.

Problem

Possible Cause

Remedy

No power when 

POWER

Mains plug not inserted

Plug in securely

button is pressed

fully into rear socket

No sound

Tape monitor function has

Switch off tape monitor

been selected

Mute function is still active

Press the mute button again

(mute LED is on)

to cancel

Wrong connections between

Check audio input lead

input sources and the A308

connections

Speakers not connected, or

Check speaker cables

incorrectly wired

Sound is not precise, lacking   Speakers are connected out of

Ensure speakers are

in bass and stereo image

phase, i.e., connections to one

connected correctly

speaker (+ and -) are reversed

Summary of Contents for A308

Page 1: ...ed amplifier Used properly and carefully it should give you many years of outstanding musical reproduction Æsthetically the A308 Integrated amplifier is a perfect match for the A308 CR CD player Together they form one of the finest hi fi systems available 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 h...

Page 2: ... plug which is marked with the letter E or coloured green or green and yellow or by the earth 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 13 amp fuse must be used WARNING The A...

Page 3: ...high temperatures operate in a well ventilated area and do not touch the side heatsink fins after periods of use at high output power Do not remove covers or try to gain access to the inside There are no internal user adjust ments Refer all service work to an authorised Musical Fidelity agent NOTE Unauthorised opening of the equipment will invalidate any warranty claims There are fuses inside the ...

Page 4: ...ch button 3 MUTE LED 4 TAPE input select button and LED 5 CD input select button and LED 6 PHONO input select button and LED 7 Volume control and LEDs 8 TUNER input select button and LED 9 AUXILIARY 1 input select button and LED 10 AUXILIARY 2 direct input input select button and LED 11 Infra Red Remote receiver for remote control 12 TAPE MONITOR button and LED Back panel layout 13 Right SPEAKER O...

Page 5: ...on the front of the amplifier without visual obstruction between them Pressing the volume up or down buttons on the remote handset will advance the motorised volume control in the required direction Pressing the MUTE button mutes the SPEAKER output and PRE OUT sockets but has no effect on the TAPE OUT sockets for recording To show that the amplifier is muted the red LED on the front panel will lig...

Page 6: ...re be connected to the input of the external woofer amplifier in this example If you are in doubt about bi amplification please contact your dealer for advice CONNECTIONS All input output and power connections should be made with the mains power switched OFF INPUT CONNECTIONS The A308 integrated amplifier has one pair of phono inputs which can be used either for moving magnet MM or the lower out p...

Page 7: ...ferred sound level TAPE RECORDING To record simply select the required source with the input selector button on the front panel This source will now be routed to the A308 s TAPE RECORD output for record ing by the external tape deck You will also be able to hear the selected source through the loudspeakers Note adjustment of the volume control has no effect on the recording level OFF TAPE MONITORI...

Page 8: ...ated amplifier your self as this will invalidate the guarantee Problem Possible Cause Remedy No power when POWER Mains plug not inserted Plug in securely button is pressed fully into rear socket No sound Tape monitor function has Switch off tape monitor been selected Mute function is still active Press the mute button again mute LED is on to cancel Wrong connections between Check audio input lead ...

Page 9: ...reference IEC RIAA see graph Signal noise ratio 96dB Moving Magnet A weighted 89dB Moving Coil A weighted Input sensitivity 2 5mV Moving Magnet 350µV Moving Coil Input impedance 47k Ohms Overload margin 24dB Inputs 4 pairs line level RCA connectors 1 pair Aux 2 direct power amplifier input RCA connectors 1 pair phono MC or MM switchable RCA connectors Outputs 2 amplifier channels via 2 pairs per c...

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