No Sound - Pioneer sc-9540 Operating Instructions Manual

Additional information
Symptom
The unit does not respond
when the buttons are pressed.
AMP ERR blinks in the display,
then the power automatically
switches off. The power
indicator blinks and the power
does not turn on.
AMP ERR blinks in the display,
then the power automatically
switches off. The ADVANCED
MCACC blinks and the power
does not turn on.
The PQLS indicator flashes and
power turns off. FAN STOP is
displayed.
The ADVANCED MCACC
indicator flashes and power
turns off.
AMP OVERHEAT (or
OVERHEAT) and the power
indicator flash and the power
turns off.
The Receiver suddenly power
off or the blue indicator at the
center of the receiver flashes.
Display blinks 12V TRG ERR.

No sound

Symptom
No sound is output when an
input function is selected.
No sound output from the front
speakers.
No sound from the surround or
center speakers.
No sound from surround back
speakers.
Remedy
• Try switching the receiver off, then back on again.
• Try disconnecting the power cord, then connect again.
• Try tuning on the power after 1 minute.
• The receiver may have a serious problem. Do not try switching the receiver on. Unplug the receiver
from the wall and call a Pioneer authorized independent service company.
• There is a problem with the receiver's fan. Try turning on the power. If the same thing happens, the
receiver is damaged. Unplug the receiver from the wall and call a Pioneer authorized independent
service company.
• There is a problem with the receiver's power unit. The receiver may have a serious problem. Unplug
the receiver from the wall and call a Pioneer authorized independent service company.
• Allow the unit to cool down in a well-ventilated place before switching back on.
• Wait at least 1 minute, then try turning the power on again.
• The power unit is damaged. Unplug the receiver from the wall and call a Pioneer authorized
independent service company.
• An error has arisen in the 12 V trigger jacks. Reconnect accurately then turn the power back on.
Remedy
• Check the volume, mute setting (press MUTE) and speaker setting (press SPEAKERS).
• Make sure the correct input function is selected.
• Check that the MCACC setup microphone is disconnected.
• Make sure the correct input signal is selected (press SIGNAL SEL). Note that when PCM is
selected, you won't be able to hear any other signal format.
• Check that the source component is connected properly (see Connecting your equipment on
page 17).
• Check that the speakers are connected properly (see Connecting the speakers on page 21).
• Check that the Stereo listening mode or the Front Stage Surround Advance mode isn't selected;
select one of the surround listening modes (see Listening in surround sound on page 57).
• Check that the surround/center speakers are not set to NO (see Speaker Setting on page 109).
• Check the channel level settings (see Channel Level on page 110).
• Check the speaker connections (see Connecting the speakers on page 21).
• Check that the surround back speakers are set to LARGE or SMALL (see Speaker Setting on
page 109).
• Make sure surround back channel processing is set to SBch ON (see Using surround back channel
processing on page 61).
• If the source is Dolby Surround EX or DTS-ES with no flag to indicate 6.1 compatibility, then with
surround back channel processing set to SBch Auto, there will be no sound from the surround back
speakers. In this case, set to SBch ON (see Using surround back channel processing on page 61).
• If the source does not have 6.1 playback channels, make sure that surround back channel
processing is set to SBch ON and a surround mode is selected (see Listening in surround sound on
page 57).
• Check the speaker connections (see Connecting the speakers on page 21).
If only one surround back speaker is connected, make sure it's connected to the left channel speaker
terminal.
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