Onkyo TX-DS484 instruction manual Troubleshooting guide, Trouble Cause Remedy See

Page 27

Troubleshooting guide

If a problem occurs while you are using the remote controller, first try to operate the front panel controls on the main unit to make sure that it is not due to a malfunction (or worn out batteries) in the remote controller.

 

 

Trouble

 

Cause

Remedy

See

 

 

 

page

 

 

 

 

 

 

 

 

 

 

 

 

 

No power.

 

 

• Power cord is disconnected.

• Connect power cord.

11

 

 

 

 

 

• There is external noise in the computer cir-

• Turn the power button off and then on again

11

 

 

 

 

 

cuits of this unit.

or remove the AC plug from the outlet and

 

 

 

 

 

 

• AC fuse blown.

then plug it again.

 

 

 

 

 

 

• Contact your Onkyo Service Center.

–

 

 

 

 

Power on but no sound.

• MUTING indicator is lit.

• Press the MUTING button on the remote con-

19

 

 

 

 

 

• Bad connections.

troller to turn it off.

 

 

 

 

 

 

• Check connections, speaker leads, etc.

10

 

 

 

 

 

• Amplifier protection circuitry has been acti-

• Contact your Onkyo Service Center.

–

 

 

 

 

 

vated. (‘PROTECT’ will be displayed.)

 

 

 

 

 

 

No sound from the center

• Speaker cable is not corrected.

• Check the connection between the amplifier

10

speaker,

or

very

minimal

• Surround mode is set to Orchestra,

and the speaker.

 

sound.

 

 

 

• If Surround mode is set to Orchestra,

21

 

 

 

 

 

Unplugged, 5ch Stereo.

Unplugged, or 5ch Stereo, the center speaker

 

 

 

 

 

 

• CENTER level is set to minimum.

outputs only the effect sound.

 

 

 

 

 

 

• Set the CENTER level to the appropriate vol-

16

 

 

 

 

 

• CENTER SPEAKER is set to NONE.

ume.

 

 

 

 

 

 

• Set CENTER SPEAKER to LARGE or

15

 

 

 

 

 

 

SMALL.

 

 

 

 

 

Hum, low-frequency noise.

• Poor or no input ground.

• Check outer conductor of input plugs.

6

 

 

 

 

 

• Poor or no phono motor ground.

• Check for proper ground connection.

6

 

 

 

 

 

• The placement of the audio connection cables

• Adjust the placement of the cable to reduce

–

 

 

 

 

 

on the rear panel is incorrect.

hum.

 

 

 

 

 

Howling when the volume is

• Turntable and speakers are too close

• Move them farther apart.

–

turned up.

 

 

together.

 

 

 

 

 

 

 

 

 

Rough

or

scratchy

sound.

• Stylus of turntable pick-up is worn.

• Replace.

 

High range is not clear.

• Turntable stylus tip is dirty.

• Clean.

–

 

 

 

 

 

• Treble control too high.

• Turn treble control down.

 

 

 

 

 

 

AM

stations cannot be

• AM loop antenna is not attached.

• Connect the included AM loop antenna to the

13

received.

 

 

 

AM antenna terminals.

 

 

 

 

 

Buzzing noise on AM (particu-

• Noise from electrical apparatus such as fluo-

• Move the AM loop antenna to different posi-

13

larly conspicuous at night or

rescent lamp.

tion.

 

with weak stations).

 

 

• Set up an outdoor AM antenna.

13

 

 

 

 

High-pitched noise or buzzing

• Noise from TV set.

• Place the AM loop antenna as far as possible

13

noise on AM.

 

 

 

from the TV.

 

 

 

 

 

 

 

• Move unit away from TV set.

–

 

 

 

 

Crackling noise on AM, FM.

• Noise caused by turning fluorescent lamp on

• Move antenna as far as possible from the flu-

 

 

 

 

 

 

and off.

orescent lamp.

 

 

 

 

 

 

• Noise from automobile ignition.

• Install an FM outdoor antenna as far as possi-

13

 

 

 

 

 

 

ble from the road.

 

 

 

 

 

 

 

• Change the position or direction of the out-

 

 

 

 

 

 

 

door antenna.

 

 

 

 

 

TUNED and STEREO indica-

• Station is too strong.

• Change to FM indoor antenna.

12

tors light but sound is distorted

• Multiple reflection of the radio waves because

• Use antenna which has better directivity and

13

and stereo separation is bad.

of tall buildings or mountains.

select a point where the distortion is least.

 

 

 

 

 

TUNED and STEREO indica-

• Station is too weak.

• Install an outdoor FM antenna.

13

tors flicker and hiss is heard

• Stereo FM broadcasts cover only about half

• Change the position or direction of the out-

 

on FM.

 

 

 

the distance of an ordinary broadcast.

door antenna.

 

 

 

 

 

 

No station is recalled.

 

• The power cord has been unplugged or the

• The memory contents are lost. Store all sta-

24

 

 

 

 

 

POWER switch has been turned off for a long

tions again.

 

 

 

 

 

 

time.

 

 

 

 

 

 

 

 

 

Front

panel

controls

function

• No batteries in remote controller.

• Insert batteries.

5

but remote controller does not.

• Batteries have worn out.

• Replace batteries.

5

 

 

 

 

The sound of the playback

• The input selector is not set properly.

• Set it to the playback source.

17

source is not heard.

 

 

 

 

 

 

 

 

 

 

 

 

Also refer to the respective instruction manuals of the video disc player, video cassette recorder, TV monitor, etc., that compose your enter- tainment system.

27

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Contents TX-DS484 Important Safeguards Precautions Features Supplied accessoriesMemory Preservation Using the remote controller Setting the AM tuning step frequency Worldwide models onlySetting the Voltage selector Worldwide models only Installing the remote controller batteriesInput Output REC Audio equipment connectionsDigital audio connections Video equipment connectionsDecoder with 5.1 channel output Connecting other devicesConnecting other devices Connections for remote controlAC outlet connection Ohms min./speaker Connecting speakersConnecting the speaker cable Or B 6 ohms min./speakerPositioning speakers Connecting the powerConnecting the power Plug the power cord into an AC wall outlet. NoteAssembling the AM loop antenna Connecting the antenna cableMaking antenna connections Directional IinkageMaking antenna connections Connecting the included antennasConnecting an FM outdoor antenna Connecting an AM outdoor antennaSpeaker setup Speaker setupSpeaker setup Press the Test Tone button Test Tone Remote controller onlyPress the Test Tone button to complete adjustment Parameter selectorSelecting a sound source Press the Parameter Controller √ or button to select on When Multi channel input is selected as a sourceUsing the Power On Volume function Selecting a sound sourceSleep function Remote controller only Switching between digital and analog inputsAdjusting the tone BASS, Treble Listening through headphones PhonesVolume knob To enjoy Surround mode or Stereo modeBefore Using Surround Mode Surround Mode button Late Night buttonSelecting a Surround mode To enjoy Surround mode or Stereo modeSetting the Surround mode parameters Setting the input signal formatAuto Auto Detect mode Receiving RDS European model only Tuning in a radio stationManual tuning Listening to a stereo radio station FM modeProgramming radio stations Using preset radio stationsSelecting a preset station Cancelling preset stationsRecording an audio source Recording a sourceAdding new sound to a video tape during video editing Recording a sourceTrouble Cause Remedy See Troubleshooting guideAmplifier Section SpecificationsFront panel Display Control positions and namesAudio muting button Muting 17 Remote controller RC-427SUsing an Onkyo DVD player Using the remote controllerUsing an Onkyo tape deck Using an Onkyo CD playerOnkyo U.S.A. Corporation
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