Yamaha 501 Руководство пользователя - Страница 23
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TROUBLESHOOTING
If the unit fails to operate normally, check the following points to determine whether the problem can be corrected by the simple
measures suggested. If it cannot, or if the problem is not listed in the SYMPTOM column, disconnect the unit's power cord and
contact your authorized YAMAHA dealer or service center for assistance.
SYMPTOM
The player does not switch ON when the
POWER switch is pressed.
The disc tray does not close completely.
A disc number does not light up in the
display.
Play does not begin.
Play is delayed, or begins at the wrong
place.
No sound.
Sound "skips".
Sound "hums".
Noise from a nearby tuner.
Noise from inside of the disc tray.
The remote control transmitter does not
work.
SPECIFICATIONS
AUDIO SECTION
Frequency response .......................... 2 Hz – 20 kHz, ±0.5 dB
Harmonic distortion+noise (1 kHz)
<
>
CDC-901
.................................................. 0.003% or less
<
>
CDC-501
...................................................0.004% or less
S/N ratio
<
>
CDC-901
................................................. 106 dB or more
<
>
CDC-501
..................................................102 dB or more
Dynamic range
<
>
CDC-901
................................................... 96 dB or more
<
>
CDC-501
....................................................95 dB or more
Wow & flutter ................................................... Unmeasurable
Output voltage .......................................................... 2.0±0.5V
Headphones output (–20 dB) .............. 200±40 mV/150 ohms
PROBABLE CAUSE
The power cord is not connected or not completely
connected.
A foreign object is obstructing the tray.
The disc has been loaded upside down.
The disc is damaged.
There is moisture on the laser pickup.
The disc has been loaded upside down.
The disc is dirty.
The disc may be scratched or damaged.
Improper output cable connections.
Improper amplifier operation.
This unit is being subjected to vibrations or
impacts.
The disc is dirty.
Improper cable connections.
The tuner is too close to this unit.
The disc may be warped.
The batteries of this remote control transmitter are
too weak.
Direct sunlight or lighting (of an inverter type of
fluorescent lamp etc.) is striking the remote control
sensor of the main unit.
GENERAL
Power requirements
Power consumption ........................................................ 20W
Dimensions (W x H x D) ......................... 435 x 106 x 388 mm
Weight
Accessories .................................................. Connection cord
Please note that all specifications are subject to change
without notice.
Securely connect the power cord.
Carefully check the disc tray and remove the foreign
object.
Load the disc correctly.
Check the disc carefully; replace it if necessary.
Wait 20 to 30 minutes after switching the unit ON
before trying to play a disc.
Reload the disc with the label side up.
Clean the disc.
Check the disc carefully; replace it if necessary.
Connect the cables properly. If the problem
persists, the cables may be defective.
Set the amplifier controls to the correct input
selection.
Relocate this unit.
Clean the disc.
Securely connect the audio cables. If the problem
persists, the cables may be defective.
Move the tuner and this unit farther apart.
Replace the disc.
Replace the batteries with new ones.
Change position of the main unit.
U.S.A. and Canada models ............................ 120V, 60 Hz
Australia and U.K. models ............................. 240V, 50 Hz
Europe model ..................................................230V, 50 Hz
General model ...................... 110/120/220/240V, 50/60 Hz
<
>
CDC-901
.......................................... 5.6 kg (12 lbs. 5 oz.)
<
>
CDC-501
.........................................5.4 kg (11 lbs. 14 oz.)
REMEDY
(17-1/8" x 4-3/16" x 15-1/4")
Remote control transmitter
Batteries (size AA, R6,UM-3)
23