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Troubleshooting
If you have any trouble using the AV receiver, look for a
solution in this section. If you can’t resolve the issue
yourself, contact the dealer from whom you purchased.
Can’t turn on the AV receiver
• Make sure that the power cord is plugged into the wall
outlet properly.
• Unplug the power cord from the wall outlet, wait 5
seconds or more, then plug it in again.
The AV receiver turns off as soon as it’s turned
on
• The amp protection circuit has been activated.
Remove the power cord from the wall outlet immedi-
ately. Disconnect all speaker cables and input sources,
and leave the AV receiver with its power cord discon-
nected for 1 hour. After that, reconnect the power cord
and set the volume to maximum. If the AV receiver
stays on, set the volume to minimum, disconnect the
power cord, and reconnect your speakers and input
sources. If the AV receiver turns off when you set the
volume to maximum, disconnect the power cord, and
contact the dealer from whom you purchased.
There’s no sound or it’s very quiet
• Make sure that the digital input source is selected
properly (page 43).
• Make sure that all audio connecting plugs are pushed
in all the way (page 22).
• Make sure that the polarity of the speaker cables is
correct, and that the bare wire is in contact with metal
part of each speaker terminal (page 19)
• Make sure that the speaker cables are not shorting.
• Check the volume (page 46). The AV receiver is
designed for home theater enjoyment and has a wide
volume range for precise adjustment.
• If the MUTING indicator is shown on the display,
press the remote controller’s [Muting] button to
unmute the AV receiver (page 54).
• While a pair of headphones is connected to the Phones
jack, no sound is output by the speakers (page 55).
• Check the digital audio output settings 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 format from a menu.
• If your turntable uses an MC cartridge, you must con-
nect an MC head amp, or an MC transformer
(page 31).
• Check the speaker settings (pages 66–71).
• On the DTR-7.6, if there’s no sound from a DVD
player connected to an HDMI IN, check the DVD
player’s output settings, and be sure to select a sup-
ported audio format.
• The input signal format is set to PCM or DTS. Set it to
Auto (page 77).
Only the front speakers produce sound
• When the Stereo listening mode is selected, only the
front speakers and subwoofer produce sound.
• In the Mono listening mode, only the front speakers
output sound when the Output Sp setting is set to Front
(page 64).
• Make sure the speakers are configured correctly
(pages 66, 67).
Only the center speaker produces sound
• If you use the Pro Logic IIx Movie or Pro Logic IIx
Music listening mode with a mono source, such as an
AM radio station or mono TV program, the sound is
concentrated in the center speaker.
• In the Mono listening mode, only the center speaker
outputs sound when the Output Sp setting is set to
Center (page 64).
• Make sure the speakers are configured correctly
(pages 66, 67).
The surround speakers produce no sound
• When the 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
(pages 66, 67).
The center speaker produces no sound
• When the Stereo listening mode is selected, the center
speaker produces no sound.
• In the Mono listening mode, only the front speakers
output sound when the Output Sp setting is set to Front
(page 64).
• Make sure the speakers are configured correctly
(pages 66, 67).
The surround back speakers produce no sound
• The surround back speakers are not used with all lis-
tening modes. Select another listening mode
(page 56).
• Not much sound may be produced by the surround
back speakers with some sources.
• Make sure the speakers are configured correctly
(pages 66, 67).
• When the ZONE 2 SPEAKERS terminals are used,
playback in the main room is reduced to 5.1-channels,
and the surround back speakers produce no sound
(page 78).
Power
Audio