ONKYO ht-r500 取り扱いマニュアル

38

• The power cord is disconnected.
• There is external noise interfering with the

computer circuits of the AV receiver.

• Amplifier protection circuitry has been

activated.

• Power supply fluctuations or other

abnormalities such as static electricity
may interrupt correct operation.

• The muting function is activated.
• The AV receiver is not properly

connected.

• Input selector is not set properly.
• Headphones are connected.

• The input signal format is set to “PCM”.

• The speakers are not properly connected.
• The listening mode is set to “Stereo” or

“Orchestra”.

• The volume level of the center speaker

(“Center”) is set to minimum.

• A speaker configuration without the center

speaker is selected.

• The placement of the audio connection

cables on the rear panel is incorrect.

• Treble control too high.

• Subwoofer mode is set to “Off”.
• Subwoofer mode setting is improper.

• The TV is not set to receive the output

signals from the AV receiver.

• The video cable is not connected

securely.

• Only the S video connection is made.

• Another input source is selected.

• Any wrong mode button is pressed.

• No batteries are inserted in the remote

controller.

• The batteries are worn out.
• The remote controller is not pointed at the

remote sensor of the AV receiver.

• The remote controller is too far from the

AV receiver.

• Check the connection of the power cord.
• Disconnect the power cord, then connect it

again.

• Contact your Onkyo Service Center.

• Disconnect the power cord, then connect it

again.

• Deactivate the muting function.
• Check the connections to the AV receiver.

• Set to correct input source.
• Decrease the volume, then disconnect the

headphones.

• Set the input signal format to “Auto”.

• Check the speaker connections.
• No sound is reproduced from the center

speaker when the listening mode is
“Stereo” or “Orchestra”.

• Adjust the volume level of the center

speaker.

• Check that the selected speaker

configuration includes the center speaker.

• Adjust the placement of the cable to

reduce hum.

• Use AUDIO ADJUST function to cut the

treble response.

• Check the subwoofer mode setting.
• Check the subwoofer mode setting.

• Set the TV to the AV receiver’s input.

• Check the connections between the AV

receiver and TV set.

• Also make video connection. Check the

TV’s video input and AV receiver’s output
signal.

• Select the appropriate input source.

• Press the appropriate mode control

button.

• Insert new batteries.

• Replace with new batteries.
• Point the remote controller at the remote

sensor of the AV receiver.

• Operate the remote controller within

16 feet (5 m).

The AV receiver doesn’t
switch on.

Power shuts off
immediately after power on.

The buttons on the remote
controller and AV receiver
do not operate.

No sound is reproduced.

No sound or very little
sound is reproduced from
the center speaker.

Hum, low-frequency noise.

Rough or scratchy sound.
High range is not clear.

No sound or very low
volume from subwoofer.

No picture appears on the
TV screen.

The sound of the playback
source is not heard.

The buttons on the AV
receiver operate but the
buttons on the remote
controller do not operate.

Check the following guide for the possible cause of a problem before contacting service. Refer also to the respective instruction manuals of
the connected components and TV.

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17

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26
10, 11

21, 24
26

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13
32

21, 28

18

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29

20
20

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10

10, 11

25

34-37

5

5
5

5