Musical Fidelity KW550 manual Amplifier PROBLEMS?, Problem Probable Cause Remedy

KW550 AMPLIFIER 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 button is	Mains power plug is not fully inserted	Plug in securely
pressed	into rear socket
No sound	Mute function is still active	Press the MUTE button on the
	Wrong connections between input	remote control to cancel
	sources and the unit	Check audio input lead connections
	Speakers not connected, or	Check speaker cables
	incorrectly wired
	Devices connected to both AUX1 rear	Remove one of the devices
	connector and PDI front panel input
	simultaneously
Sound is not precise, lacking in bass	Speakers are connected out of phase,	Ensure speakers are connected
and stereo image	i.e., connections to one speaker (+	correctly
	and -) are reversed
Hum	Audio connector plug not fully	Insert plug securely
	pushed in
Remote control does not work	Amplifier’s POWER switch is set to	Set switch to on
	off	Insert batteries correctly
	One or more batteries fitted the wrong	Change batteries for a new set
	way round	Ensure there is no obstruction
	Batteries are flat
		between the remote control and
	Remote control is not pointed directly	amplifier front
	towards the front panel of the
	amplifier
Remote control range has greatly	Batteries are running out	Change batteries for a new set.
reduced

If none of these actions affect a cure, please contact your dealer, or an authorised Musical Fidelity service agent. Remember; never open the case of the KW550 yourself, as this will invalidate the guarantee.

Issue 1: August 2006 Page 12 of 14