Bedienungsanleitung Onkyo TX-DS777 (Seite 58 von 64) (Englisch)

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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

POWER

Power shut off immedi-

ately after power on.

No power.

Power on but no sound.

The sound of the play-

back source is not heard.

No picture appears on

the TV screen (or moni-

tor)

SPEAKERS

No sound from the cen-

ter speaker, or very

minimal sound.

No sound or quiet sound

from subwoofer

PHONO

Hum, low-frequency

noise.

Howling when the vol-

ume is turned up.

Rough or scratchy

sound. High range is not

clear.

FM/AM

AM stations cannot be

received.

Buzzing noise on AM

(particularly conspicu-

ous at night or with

weak stations).

High-pitched noise or

buzzing noise on AM.

Crackling noise on AM,

FM.

Cause

• Amplifier protection circuitry has been acti-

vated.

• Power cord is disconnected.

• There is external noise in the computer circuits

of this unit.

• AC fuse blown.

• “Muting” is displayed.

• The digital/analog input setting is incorrect.

• Bad connections.

• Amplifier protection circuitry has been acti-

vated.

• The input selector is not set properly.

• The TV (or monitor) is not set to receive the out-

put signals from the reciver.

• The video cable is not connected securely.

• Only S video connection is made.

• Speaker cable is not corrected.

• Listening mode is set to Stereo or Direct.

• CENTER level is set to minimum.

• CENTER SPEAKER is set to None.

• Subwoofer is set to No.

• Subwoofer speakers output level setting is im-

proper.

• Poor or no input ground.

• Poor or no phono motor ground.

• The placement of the audio connection cables

on the rear panel is incorrect.

• Turntable and speakers are too close together.

• Stylus of turntable pick-up is worn.

• Turntable stylus tip is dirty.

• Treble control too high.

• AM loop antenna is not attached.

• Noise from electrical apparatus such as fluores-

cent lamp.

• Noise from TV set.

• Noise caused by turning fluorescent lamp on

and off.

• Noise from automobile ignition.

Remedy

• Remove the AC plug from the outlet immediately.

Then contact your Onkyo service center.

• Connect power cord.

• Turn the power button off and then on again or remove

the AC plug from the outlet and then plug it again.

• Contact your Onkyo Service Center.

• Press the MUTING button on the remote controller to

turn it off.

• Select the correct input.

• Check connections, speaker leads, etc.

• Contact your Onkyo Service Center.

• Set it to the playback source.

• Set the TV (or monitor) to the receiver input.

• Check the connections.

• Make also video connection.

• Check the connection between the amplifier and the

speaker.

• Set the Listening mode to any mode other than Stereo

or Direct.

• Set the CENTER level to the appropriate volume.

• Set CENTER SPEAKER to Large or Small.

• Check the speaker setting.

• Check the output level of the Subwoofer using the test

tone.

• Check outer conductor of input plugs.

• Check for proper ground connection.

• Adjust the placement of the cable to reduce hum.

• Move them farther apart.

• Replace.

• Clean.

• Turn treble control down.

• Connect the included AM loop antenna to the AM an-

tenna terminals.

• Move the AM loop antenna to different position.

• Set up an outdoor AM antenna.

• Place the AM loop antenna as far as possible from the

TV.

• Move unit away from TV set.

• Move antenna as far as possible from the fluorescent

lamp.

• Install an FM outdoor antenna as far as possible from

the road.

• Change the position or direction of the outdoor an-

tenna.

See

page

23, 29

6~15

26, 27

34~38

18, 19

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