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52
RQT8979
Troubleshooting guide
Before requesting service, make the following checks. If you are in doubt about some of the check points, or if the remedies indicated in the chart
do not solve the problem, refer to “Customer Services Directory” on page 58.
Pages
No power.
• Ensure the AC power supply cord is connected.
13
No sound.
Sound is distorted.
• Turn the volume up.
• Check connections to speakers and other equipment.
• Turn on the speakers.
• Select the correct source.
• Change DIG INPUT setting to suit the type of connection you have made.
• Check that the digital signals can be decoded by this unit.
• Turn the muting off.
• Turn PCM FIX off.
• Recording of some DVD-Audio may not be possible due to copyright protection.
28
13 , 15 to 25, 32
28
28
41
55
35
41
–
Sound stops.
“
OVERLOAD
” appears on the
display for about a second,
and the unit turns off.
• Determine and correct the cause, then turn the unit on.
Causes include:
- Shorting (bare wires touching) of positive and negative speaker wires.
- Using speakers with an impedance lower than that rated for this unit.
- Straining of the speakers through excessive volume or power.
- Using the unit in a hot environment without proper ventilation.
á
Consult your dealer if the problem occurs again after switching the unit on.
10, 13
13, 22, 23
–
–
Analog input becomes distorted
and the message “
OVERFLOW
”
appears on the display during
playback.
• Switch the attenuator on.
42
“
F76
” appears on the display
and the unit turns off.
• Turn the unit off, disconnect the AC power supply cord, and consult your dealer.
–
“
F70
” appears on the display.
• Turn the unit off and on. When the message still appears, disconnect the AC
power supply cord and consult your dealer.
–
“
REMOTE 2
” or “
REMOTE 1
”
appears on the display.
• Match the codes on the main unit and the remote control.
45
Display is dim.
• Cancel the DIMMER function.
35, 37
Clicking sound is heard
during play.
• Depending on the input signal when playing DVD etc., the ADVANCED DUAL AMP
function changes automatically. A clicking sound is heard when it changes. This
does not mean a problem with the unit.
á
You can also set the unit against automatic ADVANCED DUAL AMP operations.
–
40
“
MEASURING ERROR
”
appears on the display.
• A speaker is too far. Check speaker locations.
• An error occurred from a cause that cannot be identified. Perform the auto speaker
setup again.
26, 27
–
When speaker distances are set
(
á
page 39), “
–
” appears on the
display with the speaker name such
as “
L 10.0 –
”.
• It appears when polarity of a speaker is automatically adjusted.
á
You can set speakers against automatic polarity adjustment.
40
When speaker distances are set
(
á
page 39), “
OVER
” appears on
the display.
• It appears when the measured distance exceeds 45 feet (15 meters).
Check the speaker location.
–
Sound is not heard from the
center, surround or subwoofer
speakers.
• Ensure the speaker settings for your speakers are correct.
• Confirm Dolby Pro Logic , NEO:6, or SFC settings, and select an adequate
mode.
• Press [SURROUND] on when you play 2-channel stereo sources.
26, 27
30, 31, 33
28
Sound is not heard from the
surround back speaker.
• Ensure the speaker settings for your speakers are correct.
• Press [SURROUND] on.
26, 27
28
Dolby Pro Logic , NEO:6,
and SFC are unavailable.
• Check if the center speaker, surround speakers, and surround back speakers are
connected properly.
• Press [SPEAKERS A] on.
• You cannot use Dolby Pro Logic , NEO:6 or SFC on sources containing PCM
signals with the sampling frequency higher than 48 kHz.
• Cancel DVD ANALOG 6CH playback.
• You cannot use the effect when the input source contains dual audio signals in Dolby
Digital or DTS formats.
• You cannot use Dolby Pro Logic , NEO:6 or SFC with PCM multi-channel.
13, 23
28
–
29
–
–
There is no DTS audio output.
There is audio output, but the
DTS decoder indicator is not
lit.
• Set the DTS Digital Audio Output setting on the DVD player or DVD recorder to
“Bitstream”.
–
Sound is distorted when
using the Sound Field Control
(SFC).
• Depending on the input source, sound may be distorted if you increase the SFC
effect level. If this happens, decrease the SFC effect level.
33