Sony MHC-V11 Operating Instructions Manual page 34

General
The system does not turn on.
• Check that the AC power cord is
connected securely.
The system cannot be turned off
even though  is pressed.
• You may have set the display
mode to the demonstration
mode unintentionally. Press
SPEAKER LIGHT repeatedly to select
Standby Mode (page 14).
The system has entered standby
mode.
• This is not a malfunction. The system
enters standby mode automatically
in about 15 minutes when there is
no operation or audio signal output
(page 32).
There is no sound.
• Adjust the volume.
• Check the connection of the optional
equipment, if any (page 12).
• Turn on the connected equipment.
• Disconnect the AC power cord, then
reconnect the AC power cord and
turn on the system.
There is no microphone sound.
• Adjust the microphone volume level.
• Make sure the microphone is
connected to the MIC 1 or MIC 2 jack
on the unit correctly.
• Make sure the microphone is turned
on.
There is severe hum or noise.
• Move the system away from sources
of noise.
• Connect the system to a different
wall outlet.
• Install a noise filter (commercially
available) to the AC power cord.
• Turn off surrounding electrical
equipment.
• The noise generated by the cooling
fans of the system may be heard
when the system is in standby mode
or during playback. This is not a
malfunction.
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The remote control does not function.
• Remove the obstacles between the
remote control and the unit.
• Move the remote control closer to
the system.
• Point the remote control at the
system's sensor.
• Replace the batteries (R03/size
AAA).
• Move the system away from the
fluorescent light.
There is acoustic feedback.
• Reduce the volume.
• Move the microphone away from
the system or change the direction
of the microphone.
Except , no buttons on the unit
work, and "LOCK ON" appears on the
display.
• Set the Child Lock function to off
(page 32).
"SEARCH," "READING" or "TUNING"
appears on the display.
• Operate the system after the
message disappears.
Disc player
The disc tray does not open and
"LOCKED" appears on the display.
• Consult your nearest Sony dealer or
local authorized Sony service facility.
Playback does not start.
• Wipe the disc clean (page 38).
• Reload the disc.
• Load the disc that this system can
play back (page 38).
• Remove the disc and wipe away the
moisture on the disc, then leave the
system turned on for a few hours
until the moisture evaporates.
The sound skips.
• Wipe the disc clean (page 38).
• Reload the disc.
• Move the system to a place with no
vibration.