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There is no sound from the center/
surround speaker (MHC-GNZ888D
only).
• Set the center/surround speaker level to
the appropriate level.
• The software being played back has
limited sound effects. Check the volume
with the test tone (page 51).
• Check that the center/surround speakers
are connected securely and correctly.
• Make sure that “SURROUND” is set to
“SIDE” or “BEHIND” (page 50).
• Make sure that “CENTER” is set to
“YES” (page 50).
Sound lacks bass.
• Check that the speaker’s + and –
terminals are connected correctly.
Disc Player
The disc tray does not open and
“LOCKED” appears in the display.
• Consult your nearest Sony dealer or
local authorized Sony service facility.
The disc tray does not close.
• Load the disc correctly.
• Always close the disc tray by pressing
Z OPEN/CLOSE on the unit. Do not
forcibly push the disc tray to close it as
this may cause a malfunction.
The disc does not eject.
• You cannot eject the disc during CD
Synchro Recording. Press x to cancel
the CD Synchro Recording, then press
Z OPEN/CLOSE on the unit to eject the
disc.
• Consult your nearest Sony dealer.
Playback does not start.
• Open the disc tray and check whether a
disc is loaded.
• Wipe the disc clean (page 83).
• Reload the disc.
• Load the disc that this system can play
back (page 5).
• Load the disc on the disc tray with the
label side facing up.
• 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.
•Press
H (or nN on the unit) to start
playback.
• The region code on the DVD VIDEO
does not match the system.
• Cancel the Custom Parental Control
function (page 43).
The sound skips.
• Wipe the disc clean (page 83).
• Reload the disc.
• Move the unit to a place without
vibration (e.g., on top of a stable stand).
• Move the speakers away from the unit,
or place them on separate stands. When
you listen to a track with bass sounds at
high volume, the speaker vibration may
cause the sound to skip.
Playback does not start from the first
track.
• The system is in Program Play or
Shuffle Play mode. Turn off Program
Play and Shuffle Play.
• Resume Play has been selected. Press x
twice. Then, press
H (or nN on
the unit) to start playback (page 30).
• The title of DVD VIDEO or PBC menu
automatically appears on the TV screen.
Playback starts automatically.
• The DVD VIDEO features an auto
playback function.