Sony MHC-EX900 Betriebsanleitung - Seite 23
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General
The demonstration appears on the
display after plugging in the power
cord even though the system is not
turned on.
Press DISPLAY once while the system is
off. The demonstration disappears.
The system does not turn on.
Is the power cord plugged in?
The system has entered standby
mode unexpectedly.
This is not a malfunction. The system
enters standby mode automatically in
about 30 minutes when there is no
operation and audio signal output. See
"To turn off the automatic standby
function" (page 27).
There is no sound.
• Are the + and – speaker cords short-
circuited?
• Are you using only the supplied
speakers?
• Is anything blocking the ventilation
holes on the back of the system?
Sound comes from one channel, or
the left and right volumes are
unbalanced.
• Place the speakers as symmetrically as
possible.
• Connect only the supplied speakers.
Severe hum or noise.
• Move the system away from sources of
noise.
• Connect the system to a different wall
outlet.
• Install a noise filter (available
separately) to the power cord.
The remote does not function.
• Remove any obstacles between the
remote and the remote sensor on the
unit, and position the unit away from
fluorescent lights.
• Point the remote at the system's sensor.
• Move the remote closer to the system.
Except ?/1, no buttons on the unit
work, and "CHILD LOCK" appears on
the display.
The child lock function has been enabled.
To disable the child lock, hold down x
on the unit until "CHILD LOCK OFF"
appears on the display.
CD/MP3 player
The sound skips, or the disc will not
play.
• Wipe the disc clean, and replace it.
• Move the system to a location away
from vibration (for example, on top of
a stable stand).
• Move the speakers away from the
system, or place them on separate
stands. At high volume, speaker
vibration may cause the sound to skip.
Play does not start from the first
track.
Return to Normal Play by pressing PLAY
MODE repeatedly until both "PGM" and
"SHUF" disappear.
Starting playback takes more time
than usual.
The following instances can increase the
time it takes to start playback.
– a disc recorded with a complicated tree
structure
– a disc recorded in multisession mode
– a disc that has not been finalized (a disc
to which data can be added)
– a disc that has many folders
The disc tray does not open and
"LOCKED" appears.
Contact your Sony dealer or local
authorized Sony service facility.
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