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Troubleshooting, Specifications – Yamaha CDC-845 User Manual

Page 23

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23

AUDIO SECTION

Frequency response

<

CDC-845

>

..................................... 2 Hz – 20 kHz, ±0.3 dB

<

CDC-745

>

..................................... 2 Hz – 20 kHz, ±0.5 dB

De-emphasis equalization ......................................... ±0.5 dB
Harmonic distortion+noise
(with L.P.F.)

<

CDC-845

>

................................. Less than 0.002% (1 kHz)

<

CDC-745

>

............................... Less than 0.0025% (1 kHz)

S/N ratio

<

CDC-845

>

............................................................... 118 dB

<

CDC-745

>

............................................................... 115 dB

Dynamic range ............................................................. 100 dB
Wow & flutter ................................................... Unmeasurable
Output voltage ................................................................. 2.0V
Headphones output (–20 dB) ............ 200 ± 40 mV/150 ohms

GENERAL

Power requirements

U.S.A. and Canada models ............................ 120V, 60 Hz

Power consumption ........................................................ 20W
Dimensions (W x H x D) ...................... 435 x 107.5 x 387 mm

(17-1/8” x 4-1/4” x 15-1/4”)

Weight

<

CDC-845

>

................................................................. 6.0 kg

<

CDC-745

>

................................................................. 5.9 kg

Accessories .................................................. Connection cord

Remote control transmitter

Batteries (size AA, R6,UM-3)

Please note that all specifications are subject to change
without notice.

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 illuminate 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.

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.

The player is being subjected to vibrations or
impacts.

The disc is dirty.

Improper cable connections.

The tuner is too close to the player.

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.

REMEDY

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 the player.

Clean the disc.

Securely connect the audio cables. If the problem
persists, the cables may be defective.

Move the tuner and player farther apart.

Replace the disc.

Replace the batteries with new ones.

Change position of the main unit.

SPECIFICATIONS

This manual is related to the following products: