Onkyo HT-SP904 Instruction Manual page 67

Troubleshooting—Continued
The center speaker produces no sound
• When the Stereo or Mono listening mode is selected,
the center speaker produces no sound (page 52).
• Make sure the speakers are configured correctly
(page 57).
The subwoofer produces no sound
• When you play source material that contains no infor-
mation in the LFE channel, the subwoofer produces
no sound.
• Make sure the speakers are configured correctly
(page 57).
There's no sound with a certain signal format
• Check the digital audio output setting on the con-
nected device. On some games consoles, such as those
that can play DVDs, the default setting is off.
• With some DVD-Video discs, you need to select an
audio output format from a menu.
The volume cannot be set to 79
• When the volume level of each speaker has been
adjusted (pages 50, 60), the maximum possible vol-
ume may be reduced.
Noise can be heard
• 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.
• An audio cable may be picking up interference. Try
repositioning your cables.
The Late Night function doesn't work
• Make sure the source material is Dolby Digital
(page 54).
The multichannel DVD input doesn't work
• Check the multichannel DVD input connections
(page 27).
• To select the multichannel DVD input, press the
[MULTI CH] input selector button.
• Check the audio output settings on your DVD player.
About DTS signals
• When playing DTS program material, using the pause,
fast forward, or fast reverse function on your player
may produce a short audible noise. This is not a mal-
function.
• When DTS program material ends and the DTS bit-
stream stops, the AV receiver remains in DTS listen-
ing mode and the DTS indicator remains on. This is to
prevent noise when you use the pause, fast 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 immediately, you may not
hear any sound, in which case you should stop your
player for about 3 seconds, and then resume playback.
• With some CD players, you won't be able to playback
DTS material properly even though your player is con-
nected to a digital input on the AV receiver. This is
usually because the DTS bitstream has been processed
(e.g., output level, sampling rate, or frequency
response changed) and the AV receiver doesn't recog-
nize it as a genuine DTS signal. In such cases, you
may hear noise.
Video
There's no picture
• Make sure that all video connecting plugs are pushed
in all the way (page 23).
• Make sure that each video component is properly con-
nected.
• The AV receiver does not convert between formats, so
if a video source component is connected to a compo-
nent video input, your TV must be connected to the
component video output (page 24).
• If a video component is connected to an HDMI input,
your TV must be connected to the HDMI OUT
(page 28).
• On your TV, make sure that the video input to which
the AV receiver is connected is selected.
• Reliable operation with an HDMI-to-DVI adapter is
not guaranteed. In addition, video signals from a PC
are not supported (page 28).
Tuner
Reception is noisy, stereo FM reception suffers
from hiss, or the FM STEREO indicator doesn't
appear
• Relocate your antenna.
• Move the AV receiver away from your TV or com-
puter.
• Listen to the station in mono (page 44).
• When listening to an AM station, operating the remote
controller may cause noise.
• Passing cars and airplanes can cause interference.
• Concrete walls weaken radio signals.
• If nothing improves the reception, install an outdoor
antenna.
67