Onkyo DX 2500 Service Manual

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IX»2500

SERIAL NO.3287

ONKYO® SERVICE MANUAL

COMPACT DISC PLAYER
MODEL DX-2500

Black model
BUDN, BUD 120V AC, 60 Hz
BUG - 220V AC, SOHz ( Ag _ _, I
BUU 1 10/120/220/24ov AC, 50/60Hz
BUQA, BUQB 240V AC, 50 Hz
SAFETY-RELATED COMPONENT WARNING SPECIFICATIONS
COMPONENTS IDENTIFIED BY MARK A ON THE Signal readout system: Optical non-contact
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE Reading rotation: About 500N200 npim,
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCKI (constant linear Velocity)
REPLACE THESE COMPONENTS WITH ONKYO PARTS Linear velocity: 1.2~1.4m/s
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS Error correction system: Cross interleave readsolomon code
MANUAL. Decoded bits: 16 bits linear
Sampling frequency: 88.2kHz (two-times oversampling)
MAKE LEAKAGE-CURRENT OR RESISTANCE MEA- Number of channels: 2 (stereo)
SUREMENTS TO DETERMINE THAT EXPOSED PARTS Frequency response: 2Hz~20kHZ
ARE ACCEPTABLY INSULATED FROM THE SUPPLY Total harmonic distortion:0.004% (at lkHz)
CIRCUIT BEFORE RETURNING THE APPLIANCE TO Dynamic range: 93dB
THE CUSTOMER. Signal to noise ratio: 96dB .
Channel separation: 90dB (at IkI-Iz)
Wow and Flutter: Below threshold of measurability
Power comsumption: 1 6 watts
Output level: 2 volts r,m.si

Dimensions (W x H x D): 435 x 98 x 361mm
17-1/8" x 37/8" x14-1/4
Weight: 4.8kg, 10.6 lbs

Specifications are subject to change without notice.

1 ONKYO
111mm cuMPuNtuts

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ADVARSEL
Denne maerkning er anbragt pa apparatets hojre side 09 indikerer,
.1 at apparatet arbejder med laserstréler af klasse 1, hvilket betyder,
Pglégisclr'lTASER at der anvendes laserstréler af svageste klasse, 09 at man ikke pa
apparatets yderside kan blive udsat for utilladelig kraftig straling.
APPARATET 30R KUN ABNES AF FAGFOL.K MED SIERLIGT
KENDSKAB TIL APPARATER MED LASERSTRALER!
Indvendigt i apparatet er anbragt den her gengivne aovarselsmark-
ning, som advarer imod at foretage sadanne indgreb i apparatet, at
man kan komme til at udsette sig for laserstréling.
ADVARSEL USYNLIG LASEESYRUNG
VED ADMING, MAR StKKEflHtDSAF
BRVDER ER UDE AF FUNKTlDN
UNDGA UDSETYELSE FOG SYfiALING
VAROITUS! Laite sisaltéa laserdiodin, joka I'ahetta'éi (nékyméi
tontéil silmille vaarallista lasersateilyé.
Fig. 8
J

NOTE ON COMPACT DISC

0 Holding Compact Discs

Hold Compact Discs by the edges so that you do not touch
the surface of disc. Remember that the side of the disc with
the rainbow" reflection is the side containing the audio
information,

Do not attach tape or paper to the label side of the disc
and always be careful not to leave fingerprints on the side
that is played,

0 Storing Compact Discs

Store Compact Discs in a location protected from direct
sunlight, high heat and humidity and extremely high
and low temperatures. Discs should never be left in the
trunk or interior of an automobile in the sun since the
temperature can become very high in such a closed environ-
ment.

Always store Compact Discs in the holders in which they
were sold. Never leave a disc in the players disc holder for
along period of time.

Not this an

Fig. 9

0 Cleaning Compact Discs

Before playing a disc wipe off the playing surface with a
soft cloth to remove dust and other soil, Wipe the surface
in straight lines from the center of the disc outward, not
in a circular motion as you would with a phonograph
record.

Do not use benzene, chemical cleansers or phonograph
record cleaning solutions to clean Compact Discs. Also
avoid static electricity prevention solutions since they can
damage the surface of Compact Discs.

Problems Caused by Dew

Dew can form inside a Compact player when it is brought
from a cold environment into a warm room, when a room
is rapidly heated and if a player is left in a humid environ-
ment.

This dew can prevent the laser pickup from reading the
data contained in the pits in the disc surface. if the player
does not operate properly because of dew, remove the disc
and leave the players power switch on for about one
hour to remove all moisture.