Denon AVR-686 Operations Instructions download pdf (Page 48)

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.

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Display not lit and * Power supply cord not plugged in * Check the insertion of the power 15

securely, supply cord plug.

sound not produced * Turn the power on with the remote 8

when POWER switch control unit after turning the

set to on. POWER switch on.

• Connect securely.

Display lit but sound

not produced.

Display not lit and

sower indicator is

flashing rapidly.

• Speaker cables not securely

connected.

• Improper setting of the INPUT

SELECTOR knob.

• Volume control set to minimum.

• MUTING is on.

• Digital signals not input. Digital input

selected.

• Speaker terminals are short-

circuited.

• The ventilation holes of the set are

blocked.

• The unit is operating at continuous

high power conditions and/or with

inadequate ventilation.

• Set to a suitable position.

• Turn volume up to suitable level.

• Switch off MUTING.

• Input digital signals or select input

terminals to which digital signals

are being input.

• Switch power off, connect

speakers properly, then switch

power back on.

• Turn off the set's power, then

ventilate it well and allow it to cool

down.

Once the set has cooled down,

turn the power back on.

• Turn off the set's power, then

ventilate it well and allow it to cool

down.

Once the set has cooled down,

turn the power back on.

• Connect securely.

5,6

2,5

• Incompbte connection of speaker S, 6

Sound produced only cables.

from one channel. • Incompbte connection of input/ • Connect securely. 5-_7,

output cables. 11 _15

Positions of • Reverse connections of left and • Check left and right connections. 6

instruments reversed right speakers or left and right

during stereo playback, input/output cables.

Howling noise • Speaker systems too close • Separate as much as possible. --

sroduced when together.

• Floor is unstable and vibrates • Use cushions to absorb speaker --

volume is high. easily, vibrations transmitted by floor.

Troubleshooting

Sound is distorted.

This unit does not

operate properly when

remote control unit is

used.

• Stylus pressure too weak.

• Dust or dirt on stylus.

• Batteries dead.

• Remote control unit too far from

this unit.

• Obstacle between this unit and

remote control unit.

• Different button is being pressed.

• I_) and (_ ends of batteries inserted

in reverse.

• Apply proper stylus pressure.

• Check stylus.

• Replace with new batteries.

• Move closer.

• Remove obstacle.

• Press the proper button.

• Insert batteries properly.

NOTE:

• For ordinary speaker systems, we recommend setting the crossover frequency to 80 Hz.

When using small speakers, however, setting the crossover frequency to a high frequency

may improve frequency response for frequencies near the crossover frequency.

• NOTE ON USE

Avoid high temperatures.

Allow for sufficient heat dispersion

when installed in a rack.

Handle the power cord carefully.

Hold the plug when unplugging the

cord.

Keep the apparatus free from

moisture, water, and dust.

Unplug the power cord when not

using the apparatus for long

periods of time.

* (Forapparatuses with ventilation holes)

Do not obstruct the ventilation holes.

Do not let foreign objects into the

apparatus.

:y 4:

Do not let insecticides, benzene,

and thinner come in contact with

the apparatus.

Never disassemble or modify the

apparatus in any way.

I ENGLISH I

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Denon AVR-686 Operations Instructions Page 48

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