The system, The cd player, Faults and their likely causes – Philips CDC 745 User Manual
Page 16: Problems with the cd player, Problems with the whole system, Maintenance technical data
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MAINTENANCE
TECHNICAL DATA
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MAINTENANCE
TECHNICAL DATA
THE SYSTEM
•
A chamois leather slightly moistened with water
is sufficient for cleaning the housing of the unit
and the enclosures.
•
Do not use cleaning agents containing alcohol,
spirits, ammonia or abrasives.
THE CD PLAYER
•
Keep the CD tray free of dust using a clean cloth.
THE CDs
•
Never write on the printed side of a CD.
•
Do not attach any stickers to a CD.
• Keep the shiny surface of a CD clean. Use a soft
lint-free cloth and always wipe the CD in a
straight line from centre to edge.
•
Never use cleaning agents for conventional
records and grease solvents or abrasives to
clean CDs.
FAULTS AND THEIR LIKELY CAUSES
•
If a fault occurs, first check the points listed
below before sending the unit for repair. If the
remedies fail to help, consult your dealer.
Problems with the CD player
-
The CD is not inserted properly with the
printed side facing up.
-
The CD is dirty, badly scratched or warped.
-
Because of large temperature differences,
condensation has formed on the lens of the
laser. This will disappear after some time.
PROBLEMS WITH THE WHOLE SYSTEM
Electrostatic charge may cause unexpected symp
toms. See whether these symptoms disappear if you
unplug the AC cord and plug it in again after a short
period.
CAUTION:
INVISIBLE
LASER
RADIATION
WHEN
OPEN
AND
INTERLOCKS
DEFEATED.
AVOID
EXPOSURETO
BEAM.
Under no circumstances should you repair the
CD changer yourseif as this wiii invaiidate the
guarantee!
Typical Audio Performance
Frequency range;
Amplitude Linearity:
Phase Non-linearity:
Dynamic range:
Signal-to-noise ratio:
Channel separation:
20 H z - 2 0 kHz
± 0.5 dB (20 Hz - 20 kHz)
±5° (20 H z - 2 0 kHz)
86 dB
Min 84 dB from
20Hz to 20 kHz
Min 65 dB from
20Hz to 20kHz
Total Harmonic distortion:
0.02%
D/A conversion:
Bitstream conversion (256 x
oversampling, 1 bit), in differential mode
Audio output level:
2 V rms
Power supply
Mains voltage and frequency:
See the type plate on the rear of the changer
Power consumption:
Safety requirements:
Cabinet
Material/finish:
Dimensions (w x h x d):
Weight:
Subject to modification
9 W approx.
lEC 65
metal and polystyrene
with decorative trim
435
X
1 0 6 x 3 8 0 mm
7 kg approx.
14