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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 and other components operating properly?

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

Display not lit and sound

• Power supply cord not plugged in

• Check the insertion of the power

18

not produced when

securely.

 

 

supply cord plug.

 

 

POWER switch set to

 

 

 

 

 

 

 

 

on.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Display lit but sound not

• Speaker cables

not

securely

• Connect securely.

 

8

produced.

connected.

 

 

 

 

 

 

 

 

• INPUT SELECTOR knob position is

• Switch to the proper position.

19

 

not appropriate.

 

 

 

 

 

 

 

 

• Volume control set to minimum.

• Turn volume up to suitable level.

19

 

• MUTING is on.

 

 

• Switch off MUTING.

20

 

• No digital signal is being input.

• Properly select a digital signal input

41

 

 

 

 

source.

 

 

 

 

 

 

 

 

 

 

 

Nothing is displayed on

AVR-687’s video output terminals and

• Check

that

the

connections are

9,

monitor.

monitor’s input terminals are not

correct.

 

 

 

13 ~ 18

 

properly connected.

 

 

 

 

 

 

 

• Monitor’s input setting is wrong.

• Set the monitor’s input selector to

 

 

 

 

the terminals to which video signals

 

 

 

 

 

are connected.

 

 

 

• Player connected

with

component

Down-conversion is not possible for

 

terminal, TV connected with video

progressive video signals.

 

 

terminal (yellow) or S-Video terminal.

Make the interlace settings on the

 

 

 

 

 

player.

 

 

 

 

 

 

 

 

 

 

 

No DTS sound is

• DVD player’s audio output setting is

• Make

the

DVD

player’s default

produced.

not set to bit stream.

 

settings.

 

 

 

 

• DVD player is not DTS-compatible.

• Use a DTS-compatible player.

 

AVR-687’s input setting is set to

• Set to “AUTO” or “DTS”.

19

 

analog.

 

 

 

 

 

 

 

 

 

 

 

Copying from DVD to

• Copying between a source such as

• Copying is not possible.

VCR is not possible.

DVD and a VCR is not usually

 

 

 

 

 

 

possible, as DVDs are often encoded

 

 

 

 

 

 

with copy-protection signals that

 

 

 

 

 

 

prevent VCR recording.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Troubleshooting

 

 

 

 

 

 

Symptom

Cause

 

Measures

 

Page

No sound is produced

• Subwoofer’s power is not on.

• Turn on the power.

 

from subwoofer.

• Subwoofer’s initial setting is set to

• Set the setting to “YES”.

 

45, 46

 

“NO”.

 

 

 

 

 

 

• Subwoofer’s output is not connected.

• Connect properly.

 

8

 

• The subwoofer’s channel volume

• Turn the subwoofer’s channel volume

30

 

level is set to “OFF”.

level up.

 

 

 

 

 

 

 

 

 

 

No test tones are

• Surround mode is set to a mode

• Set to

STANDARD

(Dolby/DTS

produced.

other than STANDARD (Dolby/DTS

Surround).

 

 

 

 

Surround).

 

 

 

 

 

 

 

 

 

No sound is produced

• Surround mode is set to “STEREO”.

• Set to a mode other than “STEREO”.

from surround speakers.

 

 

 

 

 

 

 

 

 

 

This unit does not

• Batteries dead.

• Replace with new batteries.

3

operate properly when

• Remote control unit too far from this

• Move closer.

 

 

3

remote control unit is

unit.

 

 

 

 

 

used.

• Obstacle between this unit and

• Remove obstacle.

 

3

 

remote control unit.

 

 

 

 

 

 

• Different button is being pressed.

• Press the proper button.

 

 

< and > ends of batteries inserted

• Insert batteries properly.

 

3

 

in reverse.

 

 

 

 

 

 

 

 

 

Power has turned off

• The set’s internal temperature has

• Put the AVR-687 in a well-ventilated

8

and the power indicator

risen and the protection circuit has

place.

 

 

 

 

is blinking red.

been activated.

• Turn off the power, then wait for the

8

 

 

set to fully cool off before turning the

 

 

 

power back on.

 

 

 

• The core wires of the speaker cables

• Check the connections of all the

8

 

are touching each other or the AVR-

speaker cables.

 

 

 

687’s rear panel, activating the

 

 

 

 

 

 

protection circuit.

 

 

 

 

 

 

AVR-687 is malfunctioning.

• Turn off the power and contact a

8

 

 

DENON customer service center.

 

 

 

 

 

Sound is only produced

• You are playing a monaural source

• When playing monaural sources,

29

from the center speaker.

(TV, AM radio broadcast, etc.) in the

select a surround mode other than

 

 

STANDARD (Dolby/DTS Surround)

STANDARD

(Dolby/DTS

Surround)

 

 

mode.

mode.

 

 

 

 

 

 

 

 

“DOLBY DIGITAL” is not

• DVD player’s digital audio output

• Check the DVD player’s audio output

displayed.

setting is not proper.

setting.

 

 

 

 

 

 

For details, see the DVD player’s

 

 

 

operating instructions.

 

 

 

 

 

 

 

 

“CHECK ANTENNA” is

AVR-687’s XM connectors and the

• Check

that

the connection are

32

displayed in the XM

XM Passport System is not properly

correct.

 

 

 

 

mode.

connected.

 

 

 

 

 

 

 

 

 

“NO SIGNAL” is

• The signal cannot be received.

• Reposition your XM Passport System.

32

displayed in the XM

 

 

 

 

 

 

mode.

 

 

 

 

 

 

 

 

 

 

 

 

 

55

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