Musical Fidelity M6PRX manual Problems?, Probable Cause, Remedy, Power

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.

Issue 2 Page 9 of 11