Onkyo HT-R490 appendix Troubleshooting guide, Power

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 HT-R490 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 power cord (page 20).

•There is external noise in the computer circuits of this unit.

➞Remove the AC plug from the outlet and then plug it again (page 20).

•AC fuse blown.

➞Contact your Onkyo Service Center.

Power on but no sound.

•MUTING indicator flashes.

➞Press the MUTING button on the remote controller to turn it off (page 23).

•Bad connections.

➞Check connections, speaker leads, etc (pages 10-17).

•Amplifier protection circuitry has been activated. (“PROTECT” will be displayed.)

➞Contact your Onkyo Service Center.

•Input selector is not set properly.

➞Set to correct input source (page 22).

SPEAKERS

No sound from the center speaker, or very minimal sound.

•Speaker cable is not corrected.

➞Check the connection between the HT-R490 and the speaker (page 17).

•Listening mode is set to STEREO or ORCHESTRA.

➞If listening mode is set to STEREO or ORCHESTRA, the center speaker outputs only the effect sound (pages 26-28).

•Speaker configuration is set to 2 ch or 4 ch.

➞Set the speaker configuration to the 3 ch or 5 ch (page 21).

No sound or very low volume from subwoofer.

•Subwoofer mode is set to “OFF”.

➞Check the subwoofer mode setting (page 21).

•Subwoofer mode setting is improper.

➞Check the subwoofer mode setting (page 21).

Hum, low-frequency noise.

•Poor or no input ground.

➞Check outer conductor of input plugs (pages 10-15).

•The placement of the audio connection cables on the rear panel is incorrect.

➞Adjust the placement of the cable to reduce hum.

Rough or scratchy sound. High range is not clear.

•Treble control too high.

➞ Turn treble control down (page 8).

VIDEO and AUDIO

Desired picture does not appear.

•Improper connection.

➞Check the connection again. Insert the plugs and connectors completely (pages 10-15).

Picture and sound do not match.

•Improper connection.

➞ Check connections (pages 10-15).

No picture appears on the TV screen (or monitor).

•TV (or monitor) is not set to receive the output signals from the receiver.

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

•Video cable is not connected securely.

➞Check connections (pages 10-15).

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