Troubleshooting - Sharp MD-R2 Operation Manual

(Continued)
Types of discs
There are two types of discs: playback-only and recordable
type.
Playback-only MiniDisc:
This type of MiniDisc is used for commercially available
pre-recorded music. This is the same kind of optical disc
as CDs. Playback is performed using an optical pickup.
(Recording and editing are not possible.)
A shutter will be used
on only one side (back).
Recordable MiniDisc:
This is a "raw disc" on which recording can be performed.
A magneto optical disc is used.
Recordings are made using a laser and magnetic field.
Repeated recording is possible.
Shutters will be used on
both sides.

TROUBLESHOOTING

Moisture condensation
In the following cases, condensation may form inside
the unit.
Shortly after turning on a heater.
When the unit is placed in a room where there is exces-
sive steam or moisture.
When the unit is moved from a cool place to a warm
place.
When the unit has condensation inside, the disc signals
cannot be read, and the product may not function
properly.
If this happens, remove the disc, and open the disc
holder. The condensation should evaporate in ap-
proximately 1 hour. The unit will then function properly.
If a power failure occurs during recording
If the AC power plug is disconnected from the AC outlet
or a power failure occurs during recording (before the
TOC information has been recorded on the disc), the
audio portion being recorded at that time will be erased.
When a recording is being added to a MiniDisc which
already has a recording on it, if the TOC is not updated
before the power failure, the added recording will be
erased.
If a power failure occurs or the AC power cord is dis-
connected for about 10 minutes, when power is restored,
TOC will be written on the disc.
High-speed access
A unique feature of the MiniDisc is the ability to locate the
beginning of a desired track at high speed.
This is because the track number and track name data is
stored in a TOC (Table of Contents).
Shock Resistant Memory
During playback, approximately 10 seconds of information
is stored in the semiconductor memory. Therefore, even
when the pickup cannot read information for a second or
two due to an external shock, the sound continues without
interruption because the information stored in memory is
output.
If a problem occurs
If this product is subjected to strong external inter-
ference (mechanical shock, excessive static electricity,
abnormal supply voltage due to lightning, etc.) or if it
is operated incorrectly, it may malfunction or the display
may not function correctly. If such a problem occurs,
do the following:
Unplug the AC power cord from the AC outlet.
Wait about 20 - 30 seconds and then plug the AC power
lead back into the AC outlet.
Press the reset button on the back of the unit.
When the reset button is pressed, all of the settings in
memory will be erased.
If strange sounds, smells or smoke come out of the unit
or if a foreign object falls into the unit, turn off the power,
unplug the AC power cord from the AC outlet, immedi-
ately. Contact your nearest authorized Sharp servicer.
35
MD-R2
Disc
TOC Sound data
RESET
Pen, pencil, etc.