Sony MHC-GN100D Operating Instructions Manual page 72

The timer cannot be set.
• Set the clock again (page 13).
The timer does not function.
• Check the timer setting and set the correct time
(pages 57 and 58).
• Cancel the Sleep Timer function (page 57).
• You cannot select the Play Timer and Timer
Recording at the same time.
The remote does not function.
• Remove the obstacles between the remote and the
unit.
• Move the remote closer to the unit.
• Point the remote at the unit's sensor.
• Replace the batteries (R6/size AA).
• Locate the unit away from the fluorescent light.
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 VIDEO/SAT (AUDIO) IN jacks is distorted.
• If "VIDEO" appears in the display when you press
VIDEO/SAT, switch to "SAT" function (see
"Listening to a connected satellite tuner" on
page 68).
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 balance parameters (page 40).
The sound comes from the center speaker
only.
• Depending on the disc, the sound may come from
the center speaker only.
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There is no sound from the sub woofer.
• Set the subwoofer level to the appropriate level.
• No sound is produced from the sub woofer when
you play a DVD that does not have sub woofer
output recorded.
• The software being played back has limited sound
effects. Check the volume with the test tone
(page 40).
• Check that the sub woofer is connected securely
and correctly.
• Make sure that the SUBWOOFER setting is set to
"YES" (page 39).
There is no sound from the surround speaker.
• The software being played back has limited sound
effects. Check the volume with the test tone
(page 40).
• Check that the speakers are connected securely
and correctly.
• Set the surround speaker level to the appropriate
level.
• Make sure the SURROUND setting is set to
"YES" (page 39).
There is no sound from the center speaker.
• Set the center speaker level to the appropriate
level (page 40).
• The software being played back has limited sound
effects. Check the volume with the test tone
(page 40).
• Check that the speaker is connected securely and
correctly.
• Make sure that the CENTER setting is set to
"YES" (page 39).
Sound lacks bass.
• Check that the speaker's + and – terminals are
connected correctly.
DVD/VIDEO CD/CD/MP3/JPEG
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 tray by pressing Z OPEN/
CLOSE on the unit. Do not forcibly push the disc
tray as this may cause a malfunction.