Denon AVR-3801 manual Troubleshooting

15 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

DISPLAY not lit and sound not produced

•

Power cord not plugged in securely.

•

Check the insertion of the power cord plug.

6

•

Turn the power on with the remote control

41

etc.

when power switch set to on.

unit after turning the POWER switch on.

broadcasts,

•

Speaker cords not securely connected.

•

Connect securely.

12

•

Improper position of the audio function

•

Set to a suitable position.

42

button.

DISPLAY lit but sound not produced.

•

Volume control set to minimum.

•

Turn volume up to suitable level.

43

FM

•

MUTING is on.

•

Switch off MUTING.

44

and

•

Digital signals not

input

Digital

input

•

Input digital signals or select input jacks to

42

selected.

which digital signals are being input.

tapes

•

Speaker terminals are short-circuited.

•

Switch power off, connect speakers

12

records,

properly, then switch power back on.

•

Block the ventilation holes of the set.

•

Turn off the set’s power, then ventilate it

4, 6

well to cool it down.

CD,

DISPLAY not lit and power indicator is

Once the set is cooled down, turn the

the

flashing rapidly.

power back on.

•

The unit

is

operating

at

continuous

high

•

Turn off the set’s power, then ventilate it

4, 6

to

power

conditions

and/or

inadequate

well to cool it down.

listening

ventilation.

Once the set is cooled down, turn the

power back on.

when

•

Incomplete connection of speaker cords.

•

Connect securely.

12

Sound produced only from one channel.

•

Incomplete

connection

of

input/output

•

Connect securely.

6 ~ 13

problems

cords.

Positions of instruments reversed during

•

Reverse

connections

of

left and

right

•

Check left and right connections.

12

Common

speakers

or

left and right

input/output

stereo playback.

cords.

The on screen display is not displayed.

•

“On screen display” is set to off on the

•

Set “on screen

display” on

the

system

26

system setup menu screen.

setup menu screen to on.

•

Ground wire of turntable not connected

•

Connect securely.

6

Humming noise produced when record is

properly.

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.

control

•

Batteries dead.

•

Replace with new batteries.

29

•

Remote control unit too far from this unit.

•

Move closer.

29

This unit does not operate properly when

•

Obstacle between this unit and remote

•

Remove obstacle.

29

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.

29

61