Integra DTR-7 - Manual (Page 58)

58
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 connected.
• 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
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