Denon DRA-685 manual Troubleshooting, English

ENGLISH

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TROUBLESHOOTING

If a problem should arise,first check the following.

1.Are all connections correct ?

2.Have you operated the receiver according to the Operating Instructions ?

3.Are the speakers, turntable other components operating property ?

If this unit is not operating properly, check the items listed in the table below. Should the problem persist, there may be a malfunction. Disconnect the power immediately and contact your store of purchase.

		Symptom	Cause	Measures	Page
			• Power cord not plugged in securely.	• Check the insertion of the power cord plug.	6
		DISPLAY not lit and sound not produced		• Turn the power on with the remote control	17
		when power operation switch set to on.		unit after turning the Power operation
				switch on.
			• Speaker cords not securely connected.	• Connect securely.	9, 10
the			• Improper position of the audio function	• Set to a suitable position.	18
		DISPLAY lit but sound not produced.	button.
arising when listening to	and FM broadcasts, etc.
			• Volume control set to minimum.	• Turn volume up to suitable level.	18
			• MUTING is on.	• Switch off MUTING.	22
			• Speaker terminals are short-circuited.	• Switch power off, connect speakers	9, 10
				properly, then switch power back on.
			• Block the ventilation holes of the set.	• Turn off the set’s power, then ventilate it	5
				well to cool it down.
		— PROTECT — display appears.		Once the set is cooled down, turn the
				power back on.
Common problems	CD, records, tapes,
			• The unit is operating at continuous high	• Turn off the set’s power, then ventilate it	5
			power conditions and/or inadequate	well to cool it down.
			ventilation.	Once the set is cooled down, turn the
			• Incomplete connection of speaker cords.	power back on.	9, 10
				• Connect securely.
		Sound produced only from one channel.	• Incomplete connection of input/output	• Connect securely.	6 ~ 8
			cords.
		Positions of instruments reversed during	• Reverse connections of left and right	• Check left and right connections.	6 ~ 10
			speakers or left and right input/output
		stereo playback.
			cords.
			• Ground wire of turntable not connected	• Connect securely.	6
		Humming noise produced when record	properly.
		is playing.	• Incomplete PHONO jack connection.	• Connect securely.	6
			• TV or radio transmission antenna nearby.	• Contact your store of purchase.	–
records			• Turntable and speaker systems too close	• Separate as much as possible.	–
			together.
		Howling noise produced when volume is	• Floor is unstable and vibrates easily.	• Use cushions to absorb speaker vibrations	–
playing		high.		transmitted by floor. If turntable is not
				equipped with insulators, use audio
				insulators (commonly available).
When
			• Stylus pressure too weak.	• Apply proper stylus pressure.	–
		Sound is distorted.	• Dust or dirt on stylus.	• Check stylus.	–
			• Cartridge defective.	• Replace cartridge.	–
		Volume is weak.	• MC cartridge being used.	• Replace with MM cartridge or use a head	6
				amplifier or step-up transformer.
unit.			• Batteries dead.	• Replace with new batteries.	12
			• Remote control unit too far from this unit.	• Move closer.	12
control
		This unit does not operate properly	• Obstacle between this unit and remote	• Remove obstacle.	12
			control unit.
		when remote control unit is used.		• Press the proper button.	–
Remote			• Different button is being pressed.
			• < and > ends of battery inserted in	• Insert batteries properly.	12
			reverse.

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