Musical Fidelity M6PRX manual Problems?, Power

Page 9

PROBLEMS?

Basic problem-solving with an amplifier is similar to troubleshooting other electrical or electronic equipment. Always check the most obvious possible causes first, such as the following examples:

Problem

 

 

Probable Cause

 

 

 

Remedy

 

 

 

 

 

No power

when

POWER

Mains power plug is not fully inserted into rear

Plug in securely.

button is pressed.

 

socket.

 

 

 

 

 

 

 

 

 

 

 

No sound

 

 

Mute function is still active.

 

 

Wait for the MUTE LED to go out.

 

 

 

Wrong connections between input sources and

Check audio input lead connections.

 

 

 

the unit

 

 

 

Check speaker cables.

 

 

 

Speakers not connected, or incorrectly wired

 

 

 

 

 

 

 

 

 

 

 

 

Sound cut

 

 

Loose connection

 

 

 

Check speaker and input connections.

 

 

 

Output overload or short circuit

 

Switch unit off. Check speaker connections for shorting

 

 

 

 

 

 

 

strands or wires. When all has been double-checked

 

 

 

 

 

 

 

reduce volume and switch unit back on.

 

 

 

 

 

 

 

N.B. Take great care when bi-wiring or bi-amping that

 

 

 

 

 

 

 

speaker bass and treble linking straps are removed; see

 

 

 

 

 

 

 

speaker manual for more information.

 

 

 

 

 

Sound is

not

precise,

Speakers are connected out of phase, i.e.,

Ensure speakers are connected with same polarity at

lacking in bass and stereo

connections

to

one

speaker

amplifier and speaker ends.

image.

 

 

(+ and –) are reversed.

 

 

 

 

 

 

 

 

Hum.

 

 

Audio connector plug not fully pushed in

Insert plug securely.

 

 

 

Cable Fault

 

 

 

Check cable is connected at both ends.

 

 

 

Unsuitable

 

 

cable

N.B. Some esoteric cables have internal wiring

 

 

 

(e.g. cable grounds not connected)

 

intentionally disconnected/modified. For best results on

 

 

 

 

 

 

 

all inputs analogue AND digital, please use good quality

 

 

 

 

 

 

 

screened coax; signal and screens both separately

 

 

 

 

 

 

 

connected at both ends.

 

 

 

 

No audio output, or too

Incorrect or missing connections

 

Check connections and make sure they are secure.

low level output.

 

 

 

 

 

 

If none of these actions affect a cure, please contact the dealer, or an authorised Musical Fidelity service agent. Remember; never open

the case of the M6PRX, as this will invalidate the guarantee.

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Page 9 of 11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Image 9
Contents Instructions for use Contents Safety Information IMPORTANT! U.K. onlyIt must not be plugged into a mains outlet Installation, Precautions & User Information General AdviceDisposal Item Disposal InformationInstallation IEC Mains Input Facilities & ConnectionsImportant BALANCED/RCA switch OperationStarting Power PROBLEMS?Specifications Manual History