Sony MDS-101 - Manual (Page 6)

What Is the MiniDisc? Precautions
How the Shock-Resistant Memory works
One major drawback of optical read systems is that they can
skip or mute when subjected to vibration. The MD system
resolves this problem by using a buffer memory that stores
up to 10 seconds of audio data. This is possible because of a
1 second lag between the time audio data is picked up and
when it is decoded (see illustration below). Should the optical
pickup be jarred out of position, the correct audio data plays
from the buffer memory. Using a concept called “sector
repositioning,” the optical pickup has the ability to within 13
milliseconds identify the disruption and resume reading from
the correct point. As long as the optical pickup returns to the
correct position within about 10 seconds, you never
experience mistracking or muting.
■ Shock-Resistant Memory System
W hen playing
norm ally
W hen subjected
to vibration
Optical
pickup
Optical
pickup
“
1
^ TL
M i l l Flow of
data stops
Buffer
•••••
••••• Buffer
m em ory
•••••
••••• m em ory
••
•••••
••••• •••••
ATRAC
decoder
Û ATRAC
decoder |______________|
II I I I
ccooo
1 1 1 1 1
ooooo
On safety
• As the laser beam used in this unit is harmful to the eyes,
do not attempt to disassemble the cabinet. Refer servicing
to qualified personnel only.
• Should any solid object or liquid fall into the unit, unplug
the unit and have it checked by qualified personnel before
operating it any further.
On power sources
• Unplug the unit from the wall outlet when it is not to be
used for an extended period of time.
On operation
• If the unit is brought directly from a cold to a warm location,
or Is placed in a very damp room, moisture may condense
on the lenses inside the MiniDisc recorder, causing the
MiniDisc recorderto operate improperly. Should this occur,,
remove the disc and wait about an hour for the moisture to
evaporate.
On the MiniDisc cartridge
• Do not open the shutter to expose the disc. '"-i
• Do not place the cartridge where it will be subject to
extremes of sunlight, temperature, moisture or dust.
On cleaning '
• Clean the casing with a soft cloth slightly moistened with’’^
water or a mild detergent solution. Do not use any typepf |
abrasive pad, scouring powder or solvent such as alcoholl
or benzene as it may mar the finish of the casing.
If you have any questions or problems concerning your
please consult your nearest Sony dealer. unit,I