Pioneer SC-LX90 - Manual (Page 115)

Additional information 13
115
En
Troubleshooting
Incorrect operations are often mistaken for trouble and malfunctions. If you think that there is something wrong with
this component, check the points below. Sometimes the trouble may lie in another component. Investigate the other
components and electrical appliances being used. If the trouble cannot be rectified even after exercising the checks
listed below, ask your nearest Pioneer authorized independent service company to carry out repair work.
Power
No sound
Symptom Remedy
The power does not turn on. • Make sure that the power cable is plugged in to an active power outlet.
• Try disconnecting from the power outlet, then plugging back in.
The amplifier suddenly switches
off or the Phase Control indicator
blinks. • Check that there are no loose strands of speaker wire touching the rear panel or another set of wires. If
so, re-attach the speaker wires, making sure there are no stray strands.
• The amplifier may have a serious problem. Disconnect from the power and call a Pioneer authorized
independent service company.
During loud playback the power
suddenly switches off. • Turn down the volume.
• Lower the 63 Hz and 125 Hz equalizer levels in the
Manual MCACC setup on page 44.
• Switch on the digital safety feature. While holding down the SETUP button on the front panel, press
 STANDBY/ON to set this amplifier to the standby mode. Use / to select DIGITAL SAFETY [OFF], and
then use
/ to select 1 or 2 (select D.SAFETY OFF to deactivate this feature). If the power switches off
even with 2 switched on, turn down the volume. With 1 or 2 on, some features may be unavailable.
The unit does not respond when
the buttons are pressed. • Try switching the amplifier off, then back on again.
• Try disconnecting the power cable, then connect again.
AMP ERR blinks in the display,
then the power automatically
switches off. The
MCACC blinks
and the power does not turn on.
• The amplifier may have a serious problem. Do not try switching the amplifier on. Contact a Pioneer
authorized independent service company for help.
AMP OVERHEAT flashes, the
power turns off, and the power
indicator flashes. • 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.
Symptom Remedy
No sound is output when an input
source is selected.
No sound output from the front
speakers. • Check the volume, mute setting (press MUTE) and speaker setting (press SPEAKERS).
• Make sure the correct input source 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 16).
• Check that the speakers are connected properly (see Connecting the speakers on page 28).
No sound from the surround or
center speakers. • 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 34).
• Check that the surround/center speakers are not set to NO (see Speaker Setting on page 52).
• Check the channel level settings (see Channel Level on page 53).
• Check the speaker connections (see Connecting the speakers on page 28).
No sound from surround back
speakers. • Check that the surround back speakers are set to LARGE or SMALL (see Speaker Setting on page 52).
• Make sure surround back processing is set to SBch ON (see Using surround back channel processing on
page 37).
• If the source is Dolby Surround EX or DTS-ES with no flag to indicate 6.1 compatibility, then with surround
back 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 37).
• If the source does not have 6.1 playback channels, make sure that surround back processing is set to SBch
ON and a surround mode is selected (see Listening in surround sound on page 34).
• Check the speaker connections (see
Connecting the speakers on page 28). If only one surround back
speaker is connected, make sure it’s connected to the left channel speaker terminal.
SC_LX90_WY.book Page 115 Wednesday, February 6, 2008 11:49 AM