Musical Fidelity KW250S manual Cd Problems?, Problem Probable Cause Remedy

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KW250S

CD PROBLEMS?

Basic problem-solving with a CD player 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

Power plug is not inserted

Plug in securely fully into rear

button is pressed

 

socket

 

 

 

No playback when disc is

Disc is loaded with label side down

Re-load with label side up

loaded, “NO DISC”

Incorrect disc type

Please load a standard audio CD

displayed

Dirty disc

Clean disk and try again

 

 

Moisture/humidity or cold affecting

Leave unit on for an hour to

 

laser lens

allow moisture to evaporate.

 

 

 

No audio output, or too low

Output muted

Check mute is not on

level output

Volume set too low

Turn volume up

 

 

 

Sound is severely distorted,

Line level audio lead is connected to

Re-connect lead to auxiliary

and volume control needs to

phono input sockets of the amplifier

sockets or other “line level”

be turned down very low

 

amplifier input

 

 

 

Mis-tracking (sound jumping)

Player is receiving vibration or shock

Change position of player away

 

Disc is dirty

from loudspeakers

 

Moisture/humidity or cold affecting

Clean disc surface

 

laser lens

Leave unit on for an hour to

 

 

allow moisture to evaporate.

 

 

 

Hum

Audio connector plug is not fully pushed

Insert plug securely

 

in

 

 

 

 

Interference noise heard from

Player is positioned too near the tuner

Keep a reasonable distance

radio tuner

 

between player and tuner, or

 

 

switch off player power

 

 

 

Remote control does not

Player’s POWER switch is set to off

Set switch to on

work

 

 

Battery(ies) fitted the wrong way round

Insert batteries correctly

 

 

 

 

 

Batteries are flat

Change batteries for a new set

 

 

 

 

Remote control is not pointed directly

Ensure there is no obstruction

 

towards the front panel of the player

between the remote control and

 

 

player front

 

 

 

Remote control range has

Batteries are running out

Change batteries – for a new set

greatly reduced

 

 

 

 

 

Remember - the most vulnerable part of a CD playing system is the disc itself. The most likely cause of a disc not playing is that the disc itself is faulty, scratched or simply dirty. Never open the case of the unit yourself, as this will invalidate the guarantee. If none of the above actions affect a cure, please contact your dealer or Musical Fidelity service agent.

Issue 2: 19th June 2006

Page 13 of 24

 

 

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Contents KW250S KW250S ContentsIMPORTANT! U.K. only Safety InformationClass 1 Laser Product Radio Frequency Interference RFI Laser InformationInstallation Precautions and User Information General InstallationCleaning InstallationIntroduction Aerial AntennaFacilities and Connection KW250SAmplifier Buttons Remote ControlCD Basic Operation CD Special Features 041 Problem Probable Cause Remedy CD PROBLEMS?DAB Function Buttons Preset UP and Preset DownMONO/STEREOremote only Menu DAB options InfoFM Function Buttons Audio modeMONO/STEREO remote only Menu FM optionsProblem Probable Cause Remedy Tuner PROBLEMS?Aerial Antenna Input Connections Amplifier ConnectionsStarting Amplifier OperationRecording Amplifier PROBLEMS? DAC CD, DAC & Tuner SpecificationsPhono Response Amplifier SpecificationsManual Revision

KW250S specifications

The Musical Fidelity KW250S is a high-performance integrated amplifier that has garnered attention for its exceptional sound quality and innovative technologies. Designed for audiophiles who demand the best, the KW250S stands out in a crowded market due to its meticulous engineering and attention to detail.

At the heart of the KW250S is a robust Class A/B amplification design, which provides an impressive power output of 250 watts per channel into 8 ohms, ensuring that it can drive a wide range of speakers with ease. This substantial power allows music to be reproduced with clarity and richness, making it suitable for both delicate acoustic pieces and demanding orchestral works.

One of the main features of the KW250S is its sophisticated preamplifier stage. Musical Fidelity has implemented a dual-mono configuration that separates the left and right channels, minimizing crosstalk and enhancing stereo imaging. This design choice contributes to the amplifier's ability to deliver a three-dimensional soundstage, allowing listeners to appreciate the spatial qualities of their music.

The KW250S also employs a high-quality phono stage that supports both moving magnet and moving coil cartridges, catering to vinyl enthusiasts who seek the true essence of analog sound. The integrated DAC section accepts various digital sources, making it versatile for modern listening environments. With multiple digital inputs including USB, optical, and coaxial, users can connect their computers, CD players, and other digital devices seamlessly.

In terms of build quality, the KW250S is as impressive as its performance. It features a solid aluminum chassis that not only adds to its aesthetic appeal but also helps minimize resonance and electromagnetic interference. The spacious internal layout allows for optimal cooling, enhancing reliability during extended listening sessions.

User-friendliness is another key aspect of the KW250S. The front panel hosts a large, informative display and easy-to-use controls that make selecting inputs and adjusting settings straightforward. Furthermore, the KW250S comes with a remote control, adding convenience for users who prefer to manage their listening experience from a distance.

In summary, the Musical Fidelity KW250S combines powerful amplification, advanced technology, and superb build quality into a single integrated amplifier. Its rich feature set and outstanding performance make it a compelling choice for audiophiles seeking to elevate their music listening experience. Whether it's through analog or digital sources, the KW250S is engineered to deliver an unparalleled musical experience that will resonate with listeners for years to come.