Kw250s, Cd problems – Musical Fidelity KW250S User Manual

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KW250S

CD PROBLEMS?

Issue 3: 12th July 2006

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
button is pressed

Power plug is not inserted

Plug in securely fully into rear
socket

No playback when disc is
loaded, “NO DISC” displayed

Disc is loaded with label side down
Incorrect disc type
Dirty disc
Moisture/humidity or cold affecting laser
lens

Re-load with label side up
Please load a standard audio CD
Clean disk and try again
Leave unit on for an hour to allow
moisture to evaporate.

No audio output, or too low
level output

Output muted
Volume set too low

Check mute is not on
Turn volume up

Sound is severely distorted, and
volume control needs to be
turned down very low

Line level audio lead is connected to phono
input sockets of the amplifier

Re-connect lead to auxiliary sockets
or other “line level” amplifier input

Mis-tracking (sound jumping)

Player is receiving vibration or shock
Disc is dirty
Moisture/humidity or cold affecting laser
lens

Change position of player away
from loudspeakers
Clean disc surface
Leave unit on for an hour to allow
moisture to evaporate.

Hum

Audio connector plug is not fully pushed in

Insert plug securely

Interference noise heard from
radio tuner

Player is positioned too near the tuner

Keep a reasonable distance between
player and tuner, or switch off player
power

Player’s POWER switch is set to off

Set switch to on

Battery(ies) fitted the wrong way round

Insert batteries correctly

Batteries are flat

Change batteries for a new set

Remote control does not work

Remote control is not pointed directly
towards the front panel of the player

Ensure there is no obstruction
between the remote control and
player front

Remote control range has
greatly reduced

Batteries are running out

Change batteries – for a new set

This product contains a PHILIPS CD mechanism, which complies with the PHILIPS/SONY red
book CDDA standard. It is guaranteed to play all disks similarly marked without any problems.

Please note that due to “piracy” concerns, some record companies/pressing plants are creating
disks that do not adhere to this standard. Such disks may –or- may not play in some –or- all CD
player products of any
manufacturer. We advise caution in using these disks, as the information
contained therein has been deliberately manipulated often causing audio degradation and/or
playability problems.

We also advise caution with using cheap CD-R, and/or CD-RW disks for audio, and to ensure all home-generated CDs
intended for playback on this unit are recorded as CDDA AUDIO CDs (i.e. not
MP3, WAV, etc.) on good quality media.

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.

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