Philips CD 620 - Manual (Page 9)

ADDITIONAL INFORMATION FAULTS AND THEIR LIKELY CAUSES
CARE OF THE DISCS
Although both sides of a disc are protected by a special coating,
it Is still advisable to treat the discs with care:
• Never leave discs lying around, put them back in their holders
immediately after use.
• Never write on the printed side!
• Do not attach any stickers on the disc.
• Keep the shiny surface of the disc clean. Use a soft lint-free
cloth and always wipe the disc in a straight line from centre to
edge. You may breath lightly on the disc first.
The cleaning set SBC 3540, avaiiable separately, is a useful
accessory for cleaning your discs. It contains a protective sup­
port, a special disc cleaning cloth and a bottle of cleaning fluid.
Hotel
Cieaning agents for conventional records are not suitable for
cleaning a Compact Disc. Nor may detergents or abrasive ciean-
Ing agents be used.___________________________________
PLAYER MAINTENANCE
A chamois leather slightly moistened with water is sufficient for
cleaning the player. Do not use cleaning agents containing
alcohol, spirits, ammonia or abrasives.
The disc tray should be kept free of dust with a dry cloth.______
TECHNICAL DATA
Insufficient familiarity with the combination of a new product and
new discs may lead to faults arising during use. These are
generally caused by simple errors in operation or external factors.
It is perhaps useful to check the points listed below and where
possible remedy these before taking your player for repair.
- The transit clamps have not been removed.
- Condensation has formed on the lens of the laser due to a
dramatic change in temperature. This will disappear automati-
caily after some time.
- There is a foreign object in the disc tray.
- The disc has not been inserted with the printed side up orthere
is no disc in the tray.
- The disc is dirty, badly scratched or warped.
- The player has been connected to the PHONO socket of the
amplifier.
If the fault remains, try to clear it by switching the player off and on.
If this also fails to help, do not continue experimenting, but remove
the plug from the socket and consult your dealer.
Certain faults may be caused by a disc. In order to help determine
the precise cause, take the disc with which the fault occurred with
you when you take the player for repair.
Under no circumstances should you repair the piayeryourseif,
as this win invaiidate the guaranteei ____________________
Typical Audio Performance
Frequency range: 2-20,000 Hz
Amplitude linearity: ±0.02 dB (20-20,000 Hz)
Phase linearity: ±0.5° (20-20,000 Hz)
Dynamic range: >96 dB (20-20,000 Hz)
Slgnal-to-noise ratio: > 105 dB (20-20,000 Hz)
Channel separation: 105 dB (1 kHz)
Total harmonic distortion: 0.0025% (1 kHz)
Wow and flutter: quartz crystal precision
D/A conversion: quadruple oversampling (176.4 kHz) with digital
filter and two 16-bit D/A-converters
Audio output level: 2 Vmts
Impedance PHONES socket: 8-1000 ohms
Power supply
Mains voltage and frequency: see the type plate on the rear of the
player
Power consumption: 25 W approx.
Safety requirements: lEC 65
Cabinet
Material/finlsh: metal and polystyrene with decorative trim
Dimensions (w x h x d): 420 x 90 x 280 mm
Weight: 4 kg approx.
Subject to modification
This Compact Disc piayer compiies with radio interference
requirements as taid down in EC regutations. ___________