Denon AVR-488 Troubleshooting, Page, Page, Page, Cause, Cause, Cause, Symptom, Symptom, Symptom, GGeneralH, Countermeasure, Countermeasure, Countermeasure

Troubleshooting

If a problem should arise, first check the following:1.Are the connections correct?2.Is the set being operated as described in the owner’s manual?3.Are the other components operating properly?

If this unit does not operate properly, check the items listed in the table below. Should the problem persist, there may be a malfunction.

In this case, disconnect the power immediately and contact your store of purchase.

GGeneralH

Symptom

Cause

Countermeasure

Page

Power does not

• Connection of the power cord is

• Check the insertion of the power

17

turn on, or turns

faulty.

cord plug.

off directly after it

was turned on.

No sound is

• Connection

with

the

input

• Check the connections.

9

produced from

devices or connection of the

speakers.

speaker cables is faulty.

• Device you want to play and set

• Select

an

appropriate

input

29

input source do not match.

source.

• Master volume is

turned too

• Adjust the master volume to an

29

low.

appropriate level.

• Mute mode is set.

• Cancel the mute mode.

30

• Headphones are connected.

• Disconnect the headphones.

30

• No

digital

signals

are

being

• Select an input source for which

22

input.

the digital input setting has been

made.

• The

connectors to

which the

• Set the input mode.

29

digital inputs are assigned and

the settable input modes do not

match.

Display is off.

• The

Dimmer setting is

set to

• Set

to

something

other

than

30

“OFF”.

“OFF”.

“DOLBY DIGITAL”

• DVD player’s digital audio output

• Check

the

DVD player’s

audio

–

indicator does not

setting is not proper.

output setting. For details, read

appear on display.

the

DVD

player’s

operating

instructions.

										ENGLISH
Symptom		Cause		Countermeasure						Page	Getting
Power turns off	• Protection	circuit activated due	• Turn off the power, wait for the						9
suddenly and	to rise of internal temperature.		set to fully cool down, then turn								Started
power indicator			the power back on.
flashes red.			• Place the set in a well-ventilated						9
			place.								Connections
	• Core wires of two speakers are		• First unplug		the	power cord,			9
	touching each other or a core		then twist the core wires tightly
	wire is sticking out of the terminal		or terminate the speaker cables,
	and touching the set’s rear panel,		then reconnect.
	activating the protection circuit.										Setup
	• Speakers	with an impedance	• Use speakers with the specified						9
	other than specified are being		impedance.
	used.										Playback
	• Set is damaged.		• Turn off the power and contact a							–
			DENON service center.
GRemote Control UnitH											Remote
Symptom		Cause		Countermeasure						Page
Set does not work	• Batteries are worn.		• Replace with new batteries.						3		Control
remote control	specified range.		range.			the	specified		3
properly when	• You are operating outside of the		• Operate within
unit operated.	• Obstacle between main unit and		• Remove the obstacle.						3		Information
	remote control unit.
	• The batteries are not inserted in		• Insert	the	batteries		in	the	3
	the proper direction, as indicated		proper	direction,		following		the
	by the polarity marks in the		polarity marks in the battery
	battery compartment.		compartment.								Troubleshooting
	• The set’s remote control sensor		• Move the set to a place in which						3
	is exposed to strong light (direct		the remote control sensor will
	sunlight, inverter type fluorescent		not be exposed to strong light.
	bulb light, etc.).
	• The remote ID of the main unit		• Set “Remote ID” for the main						24
	and remote control unit do not		unit to “1”.
	match.

46