Onkyo HT-R548 Instruction Manual page 48

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Only the front speakers produce sound
When the Stereo or Mono listening mode is selected,
only the front speakers and subwoofer produce
sound.
Check the Speaker Configuration.
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Only the center speaker produces sound
If you use the Dolby Pro Logic II Movie, Dolby Pro
Logic II Music, or Dolby Pro Logic II Game
listening mode with a mono source, such as an AM
radio station or mono TV program, the sound is
concentrated in the center speaker.
Make sure the speakers are configured correctly.
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The surround speakers produce no sound
When the T-D (Theater-Dimensional), Stereo or
Mono listening mode is selected, the surround
speakers produce no sound.
Depending on the source and current listening mode,
not much sound may be produced by the surround
speakers. Try selecting another listening mode.
Make sure the speakers are configured correctly.
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The center speaker produces no sound
When the Stereo or Mono listening mode is selected,
the center speaker produces no sound.
Make sure the speakers are configured correctly.
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The subwoofer produces no sound
The subwoofer outputs no sound while only
Speakers B is on. Turn on Speakers A.
When you play source material that contains no
information in the LFE channel, the subwoofer
produces no sound.
Make sure the speakers are configured correctly.
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There's no sound with a certain signal format
Check the digital audio output setting on the
connected device. On some game consoles, such as
those that support DVD, the default setting is off.
With some DVD-Video discs, you need to select an
audio output format from a menu.
Depending on the input signal, some listening modes
cannot be selected.
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Can't get 5.1 playback
When speaker B is turned on, Speakers A is reduced
to 2.1 channel playback.
You can not always select all of the listening modes,
depending on the number of the speakers connected.
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The speaker volume cannot be set as required
After the volume level of each individual speaker
has been adjusted, the maximum volume may be
reduced.
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Noise can be heard
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Using cable ties to bundle audio cables with power
cords, speaker cables, and so on may degrade the
audio performance, so don't do it.
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An audio cable may be picking up interference. Try
repositioning your cables.
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The Late Night function doesn't work
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Make sure the source material is Dolby Digital,
Dolby Digital Plus, or Dolby TrueHD.
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About DTS signals
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When DTS program material ends and the DTS
bitstream stops, the AV receiver remains in DTS
listening mode and the DTS indicator remains on.
This is to prevent noise when you use the pause, fast
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forward, or fast reverse function on your player. If
you switch your player from DTS to PCM, because
the AV receiver does not switch formats
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immediately, you may not hear any sound, in which
case you should stop your player for about three
seconds, and then resume playback.
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With some CD and LD players, you won't be able to
playback DTS material properly even though your
player is connected to a digital input on the AV
receiver. This is usually because the DTS bitstream
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has been processed (e.g., output level, sampling rate,
or frequency response changed) and the AV receiver
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doesn't recognize it as a genuine DTS signal. In such
cases, you may hear noise.
When playing DTS program material, using the
pause, fast forward, or fast reverse function on your
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player may produce a short audible noise. This is not
a malfunction.
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The beginning of audio received by an HDMI IN
can't be heard
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Since it takes longer to identify the format of an
HDMI signal than it does for other digital audio
signals, audio output may not start immediately.
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Video
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There's no picture
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Make sure that all video connecting plugs are pushed
in all the way.
Make sure that each video component is properly
connected.
If the video source is connected to a component
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video input, you must assign that input to an input
selector, and your TV must be connected to
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COMPONENT VIDEO OUT.
If the video source is connected to a composite video
input, your TV must be connected to the
corresponding composite video output.
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If the video source is connected to an HDMI input,
you must assign that input to an input selector, and
your TV must be connected to the HDMI OUT.
On your TV, make sure that the video input to which
the AV receiver is connected is selected.
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