Denon AVR-785 18 TROUBLESHOOTING

ENGLISH

18 TROUBLESHOOTING

If a problem should arise,first check the following.

1.Are the connections correct ?

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

3.Are the speakers, turntable and 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
etc.	DISPLAY not lit and sound not produced	•	Power cord not plugged in securely.						•	Check the insertion of the power cord plug.	7
									•	Turn the power on with the remote control	36
broadcasts,	when power switch set to on.
										unit after turning the POWER switch on.
		•	Speaker cords not securely connected.						•	Connect securely.	14, 15
		•	Improper position of the audio function						•	Set to a suitable position.	37
FM
			button.
	DISPLAY lit but sound not produced.	•	Volume control set to minimum.						•	Turn volume up to suitable level.	38
and
		•	MUTING is on.						•	Switch off MUTING.	40
tapes
		•	Digital signals not input Digital input						•	Input digital signals or select input jacks to	38
			selected.							which digital signals are being input.
records,
		•	Speaker terminals are short-circuited.						•	Switch power off, connect speakers	14, 15
										properly, then switch power back on.
CD,		•	Block the ventilation holes of the set.						•	Turn off the set’s power, then ventilate it	5, 14
										well to cool it down.
the
	DISPLAY not lit and power indicator is									Once the set is cooled down, turn the
to	flashing rapidly.									power back on.
listening		•	The unit is operating at continuous high						•	Turn off the set’s power, then ventilate it	5, 14
			power	conditions and/or				inadequate		well to cool it down.
			ventilation.							Once the set is cooled down, turn the
when										power back on.
		•	Incomplete connection of speaker cords.						•	Connect securely.	14, 15
problems
	Sound produced only from one channel.	•	Incomplete		connection		of	input/output	•	Connect securely.	7 ~ 15
			cords.
Common	Positions of instruments reversed during	•	Reverse	connections		of	left and right		•	Check left and right connections.	15
			speakers	or	left and	right		input/output
	stereo playback.
			cords.
		•	Ground wire of turntable not connected						•	Connect securely.	7
	Humming noise produced when record is		properly.
	playing.	•	Incomplete PHONO jack connection.						•	Connect securely.	7
		•	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	7
										amplifier or step-up transformer.
control		•	Batteries dead.						•	Replace with new batteries.	18
		•	Remote control unit too far from this unit.						•	Move closer.	18
	This unit does not operate properly when	•	Obstacle between this unit and remote						•	Remove obstacle.	18
Remote unit
	remote control unit is used.		control unit.
		•	Different button is being pressed.						•	Press the proper button.	—
		•	< and > ends of battery inserted in reverse.						•	Insert batteries properly.	18

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