Sony ZS-M30 - Manual (Page 48)

48 GB
Troubleshooting
General
There is no audio.
• Press OPERATE to turn on the player.
• Connect the mains lead securely.
• Adjust the volume.
• Unplug the headphones from the i jack
when listening through speakers.
• Wait until “TOC Reading” disappears from
the display.
The picture of your TV becomes unstable.
• Move the player away from the TV.
Various indications appear in the display
one after another.
• The player is in the demonstration mode.
c Set the clock, or press NO•CANCEL for
about 2 seconds to exit the demonstration
mode.
Noise is heard.
• Someone is using a portable telephone or
other equipment that emits radio waves near
the player.
c Move the portable telephone, etc., away
from the player.
CD Player
The CD does not play./“No Disc” lights in
the display even when a CD is in place.
• Make sure that the CD compartment is
closed.
• Place the CD with the label surface up.
• Clean the CD.
• Take out the CD and leave the CD
compartment open for about an hour to dry
moisture condensation.
• A CD-RW cannot be played on this player.
The sound drops out.
Noise is heard.
• Reduce the volume.
• Clean the CD, or replace it if the CD is
damaged.
• Place the player in a location free from
vibration.
• The sound may drop out or noise may be
heard if the CD is recorded using a personal
computer (CD-R, etc.).
Recordable MDs
Recordable MDs, which use magneto-optical
(MO) technology, can be recorded again and
again. The laser inside the recorder applies
heat to the MD, demagnetizing the magnetic
layer of the MD. The recorder then applies a
magnetic field to the layer. This magnetic
field corresponds exactly to the audio signals
generated by the connected source. (The
north and south polarities equate to digital
“1” and “0”) . The demagnetised MD adopts
the polarity of the magnetic field, resulting
in a recorded MD.
Features
Long recording
The MD uses a new digital audio
compression technology called Adaptive
TRansform Acoustic Coding (ATRAC). To
store more sound in less space, ATRAC
extracts and encodes only those frequency
components actually audible to the human
ear.
Quick random access
Like CDs, MDs offer instantaneous random
access to the beginning of any music track.
Pre-mastered MDs are recorded with
location addresses corresponding to each
music track.
Shock-resistant memory
One major drawback of optical read systems
is that they skip or mute the sound when
subject to vibration. The MD system
resolves this problem by using a buffer
memory that stores audio data.
Getting to know the MD
(continued)