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Troubleshooting guide
If a problem occurs while you are using the remote
controller, first try to operate the controls on the front
panel of the DTR-9.1 to make sure that it is not due to a
malfunction (or worn out batteries) in the remote
controller.
POWER
Power shuts off immediately after power on.
• Amplifier protection circuitry has been activated.
➞ Remove the power cord from outlet immedi-
ately. Contact your Integra/Onkyo service cen-
ter.
No power.
• Power cord is disconnected.
➞ Connect power cord.
• External noise in the affecting the internal micro-
computer.
➞ Turn the power button off and then on again or
remove the power cord from the outlet and then
plug it in again.
• Internal fuse is blown.
➞ Contact your Integra/Onkyo Service Center.
Power turns on but no sound.
•“Muting” is displayed.
➞ Press the MUTING button on the remote control-
ler to turn it off.
• Bad connections or wiring.
➞ Check connections, speaker cables, etc.
• Amplifier protection circuitry has been activated.
➞ Contact your Integra/Onkyo Service Center.
The sound of the playback source is not heard.
• Input selector is not set properly.
➞ Set to correct input source.
• Headphones are connected.
➞ Lower volume and then disconnect head-
phones.
SPEAKERS
No sound from the center speaker, or at very low
volume.
• Speaker cable is not connected.
➞ Check the connection between the amplifier
and the speaker.
• Listening mode is set to Stereo or Direct.
➞ Set the Listening mode to any mode other than
Stereo or Direct. The output to the center
speaker may differ depending on the listening
mode.
• CENTER level is set to minimum.
➞ Set the CENTER level to the appropriate volume.
• CENTER SPEAKER is set to “None.”
➞ Set CENTER SPEAKER to “Large” or “Small.”
No sound or very low volume from subwoofer
• Subwoofer is set to “No.”
➞ Check the speaker setting.
• Subwoofer speakers output level setting is improper.
➞ Check the output level of the Subwoofer using
the test tone.
Low frequency humming is heard
• Not properly grounded.
➞ Check outer conductor of input plugs.
• Turntable motor is not properly grounded.
➞ Check for proper ground connection.
• Audio connection cables on the rear panel are
connected incorrectly.
➞ Adjust the placement of the cable to reduce
hum.
Howling is heard when the volume is turned up.
• Turntable and speakers are located too close to-
gether.
➞ Move them farther apart.
Rough or scratchy sound is heard. High range is
not clear.
• The needles of turntable is dirty or worn, or a prob-
lem exists with a connected component.
➞ Refer to the instruction of the connected com-
ponents and check for problem.
• Treble control too high.
➞ Turn treble down.
