Yamaha DSP-E492 TROUBLESHOOTING

TROUBLESHOOTING

If the unit fails to operate normally, check the following points to determine whether the fault can be corrected by the simple measures suggested. If it cannot be corrected, or if the fault is not listed in the SYMPTOM column, disconnect the power cord and contact your authorized YAMAHA dealer or service center for help.

		SYMPTOM	CAUSE	REMEDY
		The unit fails to turn on when the POWER	Power cord is not plugged in or is not completely	Firmly plug in the power cord.
		switch is pressed, or turns off suddenly soon	inserted.
		after the power is turned on.
			The IMPEDANCE SELECTOR switch on the rear	Set the switch to the left or right end exactly.
			panel is not set to the left or right end exactly.
		No sound or no picture.	Incorrect output cord connections.	Connect the cords properly. If the problem persists,
				the cords may be defective.
			Appropriate input source is not selected.	Select an appropriate input source with the input
				selector buttons.
			The PROCESSOR SELECTOR switch on the front	When you will not use signals input to the INPUT
			panel is set to the “EXTERNAL” position.	(from AMP/RECEIVER PREOUT) terminals on the
				rear panel, make sure to set the PROCESSOR
				SELECTOR switch to the “INTERNAL” position.
			Speaker connections are not secure.	Secure the connections.
		The sound suddenly goes off.	The protection circuit has been activated because	Turning the unit off and then on will reset the
			of short circuit etc.	protection circuit.
Amplifier		Only one side speaker outputs the sound.	Incorrect cord connections.	Connect the cords properly. If the problem persists,
				persists, the cords may be defective.
				the cords may be defective.
		Sound “hums”.	Incorrect cord connections.	Firmly connect the audio plugs. If the problem
		The volume level cannot be increased, or	The power to the component connected to the REC	Turn the power to the component on.
		sound is distorted.	OUT terminals of this unit is off.
		No sound from the main speakers.	The volume is adjusted to minimum on the external	Increase the volume on the external amplifier.
			amplifier driving the main speakers.
			Incorrect cord connections.	Connect the cords properly. If the problem persists,
				the cords may be defective.
		No sound from the rear speakers.	The sound output level to the rear speakers is set	Raise the sound output level to the rear speakers.
			to 0.
			The monaural sound source is played in DOLBY	Select another program suitable for the monaural
			PRO LOGIC or DOLBY PRO LOGIC ENHANCED	sound source.
			mode.
		No sound from the center speaker.	The sound output level to the center speaker is set	Raise the sound output level to the center speaker.
			to 0.
			The center channel mode is in PHANTOM mode.	Select NORMAL or WIDE.
			Incorrect sound field program selection.	Select the appropriate program.
Remotecontrol	transmitter	The remote control transmitter does not work.	Direct sunlight or lighting (of an inverter type of	Change the position of the main unit.
			The batteries of this remote control transmitter are	Replace the batteries with new ones.
			flourescent lamp etc.) is striking the remote control
			sensor of the main unit.
			too weak.
		The sound is degraded when listening with the	The power to this unit is off.	Turn the power to this unit on.
Others		headphones connected to the compact disc
		player or cassette deck that are connected with
		this unit.
		Noise from nearby TV or tuner.	This unit is too close to the affected equipment.	Move the unit further away from the affected
				equipment.

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