Sony HT-M7 Operating Instructions Manual page 55

There is no sound, or only a very low-
level sound is heard from specific
speakers.
• Check that all the cords are fully inserted
into the jacks on both the receiver and the
equipment.
• Make sure you have connected to both the
L and R jacks of an analog equipment,
analog equipment requires both L and R
jack connections. Use an audio cord (not
supplied).
• Adjust the speaker level (page 31).
• Check that the speaker cords (supplied)
are connected correctly and securely (page
18).
• Check that the subwoofer is connected
correctly and securely.
There is no sound from a specific
equipment.
• Check that the equipment is connected
correctly to the audio input jacks for that
equipment.
• Check that the cord(s) used for the
connection is (are) fully inserted into the
jacks on both the receiver and the
equipment.
• Check the INPUT MODE (page 46).
• Check the setting of "AUDIO.OUT" in the
HDMI menu (page 51).
• Check that the equipment is connected
correctly to the HDMI jack for that
equipment.
• You cannot listen to the Super Audio CD
by connecting HDMI.
• Depending on the playback equipment,
you may need to set up the HDMI setting
of the equipment. Refer to the operating
instructions supplied with each
equipment.
• Be sure to use a High Speed HDMI cable
when you view images or listen to sound,
especially for the 1080p, Deep Color
(Deep Colour) or 3D transmission.
• Audio signals (format, sampling
frequency, bit length, etc.) transmitted
from an HDMI jack may be suppressed by
the connected equipment. Check the setup
of the connected equipment if the image is
poor or the sound does not come out of the
equipment connected via the HDMI cable.
• When the connected equipment is not
compatible with copyright protection
technology (HDCP), the image and/or the
sound from the HDMI TV OUT jack may
be distorted or may not be output. If this is
the case, check the specification of the
connected equipment.
• The image resolution of the playback
equipment may need to be at certain
settings before you can enjoy Multi
Channel Linear PCM. Refer to the
operating instructions of the playback
equipment.
• Make sure the TV is compatible with the
System Audio Control function.
• If the TV does not have System Audio
Control function, set the "AUDIO.OUT"
settings in the HDMI menu to
– "TV+AMP" if you want to listen to the
sound from the TV speaker and receiver.
– "AMP" if you want to listen to the sound
from the receiver.
• When you connect the receiver to a video
equipment (projector, etc.), sound may not
be output from the receiver. In this case,
set the "AUDIO.OUT" to "AMP" in the
HDMI menu (page 51).
• If you cannot listen to the sound of the
equipment connected to the receiver while
a TV is selected on the receiver.
– Be sure to change the input of the
receiver to HDMI when you want to
watch a program on the equipment
connected via HDMI connection to the
receiver.
– Change the TV channel when you want
to watch a TV broadcast.
continued
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