Yamaha 501, CDC-901 TROUBLESHOOTING, SPECIFICATIONS

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	PROBABLE CAUSE	REMEDY
The player does not switch ON when the	The power cord is not connected or not completely	Securely connect the power cord.
POWER switch is pressed.	connected.
The disc tray does not close completely.	A foreign object is obstructing the tray.	Carefully check the disc tray and remove the foreign
		object.
A disc number does not light up in the	The disc has been loaded upside down.	Load the disc correctly.
display.
	The disc is damaged.	Check the disc carefully; replace it if necessary.
	There is moisture on the laser pickup.	Wait 20 to 30 minutes after switching the unit ON
		before trying to play a disc.
Play does not begin.	The disc has been loaded upside down.	Reload the disc with the label side up.
	The disc is dirty.	Clean the disc.
Play is delayed, or begins at the wrong	The disc may be scratched or damaged.	Check the disc carefully; replace it if necessary.
place.
No sound.	Improper output cable connections.	Connect the cables properly. If the problem
		persists, the cables may be defective.
	Improper amplifier operation.	Set the amplifier controls to the correct input
		selection.
Sound “skips”.	This unit is being subjected to vibrations or	Relocate this unit.
	impacts.
	The disc is dirty.	Clean the disc.
Sound “hums”.	Improper cable connections.	Securely connect the audio cables. If the problem
		persists, the cables may be defective.
Noise from a nearby tuner.	The tuner is too close to this unit.	Move the tuner and this unit farther apart.
Noise from inside of the disc tray.	The disc may be warped.	Replace the disc.
The remote control transmitter does not	The batteries of this remote control transmitter are	Replace the batteries with new ones.
work.	too weak.
	Direct sunlight or lighting (of an inverter type of	Change position of the main unit.
	fluorescent lamp etc.) is striking the remote control
	sensor of the main unit.

SPECIFICATIONS

AUDIO SECTION			GENERAL
Frequency response ..........................		2 Hz – 20 kHz, ±0.5 dB	Power requirements
Harmonic distortion+noise (1 kHz)			U.S.A. and Canada models		............................ 120V, 60 Hz
<	> .....................................................................................................	0.003% or less	Australia and U.K. models		............................. 240V, 50 Hz
CDC-901	>
<		0.004% or less	Europe model ..................................................		230V, 50 Hz
CDC-501
S/N ratio	> ...................................................................................................		General model ......................		110/120/220/240V, 50/60 Hz
<			106 dB or more	Power consumption ........................................................		20W
CDC-901	>
<		102 dB or more	Dimensions (W x H x D) .........................		435 x 106 x 388 mm
CDC-501
Dynamic range					(17-1/8” x 4-3/16” x 15-1/4”)
<	> .......................................................................................................	96 dB or more	Weight
CDC-901	>			>...................................................................................
<		95 dB or more	<			5.6 kg (12 lbs. 5 oz.)
CDC-501			CDC-901	>
Wow & flutter ...................................................		Unmeasurable	<		5.4 kg (11 lbs. 14 oz.)
			CDC-501
Output voltage ..........................................................		2.0±0.5V	Accessories	..................................................	Connection cord
Headphones output (–20 dB) ..............		200±40 mV/150 ohms			Remote control transmitter
					Batteries (size AA, R6,UM-3)

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

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