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There is acoustic feedback.
• Reduce the volume.
• Move the microphone away from the speakers or
change the direction of the microphone.
The color irregularity on a TV screen persists.
• Turn off the TV set once, then turn it on after
15 to 30 minutes. If the color irregularity still
persists, place the speakers farther away from the
TV set.
The sound from the component connected to
the TV/SAT AUDIO IN L/R jacks is distorted.*
• If “TV” appears in the display when you press
TV/SAT on the unit, switch to “SAT” function
(see “Listening to a connected TV or satellite
tuner” on page 84).
*
Except for MHC-GNZ55D.
Speakers
Sound comes from one channel or
unbalanced left and right volume.
• Place the speakers as symmetrically as possible.
• Check that the speaker are connected securely and
correctly.
• The source being played back is monaural.
• Adjust the level of each speaker (page 55).
The sound comes from the center speaker
only.
2)
• Depending on the disc, the sound may come from
the center speaker only.
There is no sound from the subwoofer.
1)
• Set the subwoofer level to the appropriate level.
• No sound is produced from the subwoofer when
you play back a DVD VIDEO that does not have
subwoofer output recorded.
• The software being played back has limited sound
effects.
• Check that the subwoofer is connected securely
and correctly.
• Make sure that “SUBWOOFER” is set to “YES”
(page 54 or 55).
• (MHC-GN999D/MHC-GN999DS only)
Make sure you have pressed SUB WOOFER
ON/OFF on the unit to turn on the subwoofer.
There is no sound from the surround
speaker.
2)
• Set the surround speaker level to the appropriate
level.
• The software being played back has limited sound
effects. Check the volume with the test tone
(page 56).
• Check that the surround speakers are connected
securely and correctly.
• Make sure that “SURROUND” is set to “SIDE” or
“BEHIND” (page 54).
There is no sound from the center speaker.
2)
• Set the center speaker level to the appropriate
level.
• The software being played back has limited sound
effects. Check the volume with the test tone
(page 56).
• Check that the center speaker is connected
securely and correctly.
• Make sure that “CENTER” is set to “YES”
(page 54).
Sound lacks bass.
• Check that the speaker’s + and – terminals are
connected correctly.
1)
Except for MHC-GNZ55D.
2)
Except for MHC-GNZ77D/MHC-GNZ55D.
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.