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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 TX-SR701/
701E/601/601E to make sure that it is not due to a malfunction (or
worn out batteries) in the remote controller.
POWER
No power.
• Power cord is disconnected.
© Connect the power cord (see page 28).
• External noise is affecting the internal microcomputer.
© Turn off the power, wait five seconds, and then turn back on
the power.
• Internal fuse is blown.
© Contact your Onkyo Service Center.
Power turns on but no sound.
• "Muting" is displayed.
© Press the MUTING button on the remote controller to turn
off muting (see page 45).
• Bad connections or wiring.
© Check connections, speaker cables, and other wiring (see
pages 16-27).
• Amplifier protection circuitry is activated.
© Contact your Onkyo Service Center.
Sound of playback source is not heard.
• Input selector is not set properly.
© Set to correct input source.
• Headphones are connected.
© Lower volume and then disconnect headphones.
Power shuts off immediately after power on.
• Amplifier protection circuitry is activated.
© Remove the power cord from the outlet immediately.
Contact your Onkyo service center.
SPEAKERS
No sound from the center speaker, or at very low volume.
• Speaker cable is not connected.
© Check the connection between amplifier and speaker (see
page 27).
• Listening mode is set to Stereo, Pure Audio (TX-SR701/701E
only), 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 speaker volume is set to minimum.
© Set the center speaker level to the appropriate volume (see
page 34).
• The Center setting is set to "None."
© Set the Center setting to "Large" or "Small" at "Speaker
Config" (see page 31).
No sound or very low volume from subwoofer.
• Subwoofer setting is set to "No."
© Set the Subwoofer setting to "Yes" at "Speaker Config" (see
page 32).
• Subwoofer volume is set to minimum.
© Set the subwoofer level to the appropriate volume (see page
34).
Low frequency humming is heard.
• Turntable motor is not properly grounded. (TX-SR701/701E
only)
© 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. (TX-
SR701/701E only)
• Turntable and speakers are located too close together.
© Move them farther apart.
Rough or scratchy sound is heard. High range is not
clear.
• Turntable needle is dirty or worn (TX-SR701/701E only), or a
problem exists with a connected component.
© Refer to the instruction of the connected components and
check for problem.
• Treble control is too high.
© Turn treble setting down at Audio Adjust → Treble (see
page 57).
FM/AM TUNER
AM stations cannot be received.
• AM loop antenna is not connected.
© Connect the included AM loop antenna to the AM antenna
terminals (see page 29).
Buzzing noise on AM stations (particularly noticeable at
night or with weak stations).
• Noise from electrical apparatus such as fluorescent lamp.
© Move the AM loop antenna to different position.
© Set up an outdoor AM antenna (see page 30).
Noise is heard at high-pitched sounds on AM stations.
• Noise caused by TV set.
© Place the AM loop antenna as far as possible from the TV.
© Move TX-SR701/701E/601/601E away from TV set.
Crackling noise on both AM and FM stations.
• Noise caused by fluorescent lamp being turned on and off.
© Move antenna as far as possible from the fluorescent lamp.
• Noise from automobile ignition.
© Install an FM outdoor antenna as far as possible from the
road (see page 30).
© Change the position or direction of the outdoor antenna.
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