Musical Fidelity KW550 Manual De Usuario

KW550 

 

 

 

Issue 1:  August 2006

 

Page 12 of

 

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: 

No power when POWER button is 
pressed 

Mains power plug is not fully inserted 
into rear socket 

Plug in securely 

No sound 

Mute function is still active 
Wrong connections between input 
sources and the unit 
Speakers not connected, or 
incorrectly wired 
Devices connected to both AUX1 rear 
connector and PDI front panel input 
simultaneously 

Press the MUTE button on the 
remote control to cancel 
Check audio input lead connections 
Check speaker cables 
 
Remove one of the devices 

Sound is not precise, lacking in bass 
and stereo image 

Speakers are connected out of phase, 
i.e., connections to one speaker (+ 
and -) are reversed 

Ensure speakers are connected 
correctly 

Hum 

Audio connector plug not fully 
pushed in 

Insert plug securely 

Remote control does not work 

Amplifier’s POWER switch is set to 
off 
One or more batteries fitted the wrong 
way round 
Batteries are flat 
Remote control is not pointed directly 
towards the front panel of the 
amplifier 

Set switch to on 
Insert batteries correctly 
Change batteries for a new set 
Ensure there is no obstruction 
between the remote control and 
amplifier front 

Remote control range has greatly 
reduced 

Batteries are running out 

Change batteries for a new set. 

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.