Sony MDS-B1 User's manual

Sony MDS-B1 User's manual
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About This Manual
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Organization of this manual
lo get an idea of the contents of each chapter. read the chapter
summarics below and at the start of each chapter.
Chapter 1 Overview
Fhis chapter explains the main features of the MD recorder.
Chapter 2 Function of Parts and Controls
This chapter explains the functional parts of the MD recorder. how
they work and how to use them.
Chapter 3 Preparations
This chapter explains precautions, connecting the MD recorder, taking
care of discs, and setting the reference level of analog mput/output
signals.
Chapter 4 Recording
This chapter explains basic procedures for recording. displaying cycle,
and labeling discs and tracks.
Chapter 5 Playback
This chapter explains basic procedures for playback. locating tracks.
displaying information, and other playback functions.
Chapter 6 Editing Functions
This chapter explains dividing tracks, combining tracks and other
basic editing procedures.
Chapter 7 Menu Functions
This chapter explains menu-specified functions such as AUTO
PAUSE or AUTO CUE.
Chapter 8 Maintenance
This chapter explains how to maintain the MD recorder and the
meaning of MD display messages.
Appendix
* Specifications
This appendix provides the technical specifications of the MD
recorder.
* Whatis the MiniDisc?
This appendix explains the operating principles of the MD.
Index
This index provides easy access to important subjects and terms.
4 About This Manual
e ———
Conventions used
Reference information
Switches, etc. used in the
procedure
Explanation of operation
Procedure step number
Operation results or other
operation-related
information
Explanation of procedures
Each step of a procedure is shown in an accompanying illustration
connected by line to the respective key or switch to he operated.
Switches or lamps that require checking during the procedure also
appear in the illustration.
Technical terms and reference information
Definitions of technical terms appearing for the first time appear at the
bottom of the respective page. Titles of chapters. sections, or manuals
appear in italics when they are referred to.
Example:
6-3 Dividing a Recorded Track
(Divide Function)
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Example of a Procedure
About This Maral 5
This chapter explains the main features and functions of the MDS-B1.
1-1 Introducing the MDS-B1 .................emeservacecanrecacce Г =
1-2 Features ....e....econcorecccooa reee ere eee econ ee e e eos Le
1-2-1 Features of the MiniDisc Recorder .........................l-
1-2-2 Operational Features ........................iecieninon 1
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Chapter 1 1
1-2
Chapter 1
Overview
The MDS-B1 MD (MiniDisc) recorder provides the superior sound
quality of digital MD recording and playback as well as MD recorder
functions suited to the requirements of commercial broadcasting.
The durability of MDs makes then ideal for playing repetitive
material over long periods of time, such as background music or
announcements at public facilities. The MDS-B 1 “s analog input/
output connectors allow signal transmissions over an XLR (balanced)
cable. Its commercial broadcasting functions include highly accurate
cuing, the indication of remaining play time, an EOM (end of
message) indicaiton. and an hours meter to indicate accumulated
operating time for the laser diode and spindle motor.
The MDS-B1 is compact enough to allow three units to be mounted in
a standard 19" rack. It comes with a rear 25-pin REMOTE connector
and a wire-connected remote controller that allows easy entry of titles
and other text data on a standard typewriter keyboard.
ATRAC (Adaptive Transform Acoustic Coding) data compression technology |
By eliminating inaudible sound data to obtain a compression ratio of
1:5, ATRAC data compresion technology enables the recording of
sound information of almost the same quality and quantity as a CD,
but on a smaller disc.
74 minutes of playback or recording
A single MD can be used to play back or record up to 74 minutes of
sound information, far exceeding the capacity possible with IC
memories.
You can use the supplied remote controller to directly access any of
255 MD tracks, without the long cuing time required for tape.
Various playback functions
The MDS-B 1's various playback functions include repeated playback
of tracks and programmed playback of tracks.
Multiple editing functions
The MDS-B 1's editing functions allow you to divide, combine and
move tracks, as well as monitor the sound while dividing tracks.
Unlike tracks on analog cassette tape, specific MD tracks or an entire
MD can be erased instantly.
Text entry
You can use the supplied wire-connected remote controller to enter
text to create titles for recorded discs and tracks. Titles, which may be
as long as 100 characters per title and totaling 1,792 characters per
disc. appear in the display window during playback.
Chapter 1 Overview 1-3
Chapter 1
~
^_^
1-4
1-2 Features
Because the MDs use a non-contact system like compact discs. they
are superior to the cassette tape in durability.
AUTO PAUSE function
You can use the AUTO PAUSE function to place an MD in playback
pause at the beginning of a track, then press the PLAY/PAUSE key to
start playback. Use this function to pre-cue tracks during on-the-air
broadcasting with multiple MD recorders.
AUTO CUE function
When the AUTO CUE function is on, the MD recorder enters
playback pause when it detects a rise in the audio signal (above —58
dB) following the inaudible portion at the start of a track.
This function is effective for delivering special sound effects in theater
productions, etc.
Playback display variations
While entering a track title, you can use a semicolon to divide the title,
then display each part separately during playback by pressing the
DISPLAY key. By holding down the DISPLAY key, you can also
display the remaining playing time of the track alternately with the
track title or elapsed playing time (auto display function).
LevelSync setting function
LevelSync setting is essentially the adding of track numbers at
specified points while recording. Track numbers can be added
automatically or manually.
End-of-message (EOM) indication
The display indication flashes when that the end of the track
approaches (EOM indication). You can specify flashing to start at
between 1 and 35 seconds before the end of the track.
Chapter 1 Overview
Hours meter
The hours meter displays the accumulated time of laser diode
recording operations and spindle motor operation. Use this
information as the basis for replacing the BU block.
Remote control function
The MD recorder can be controlled by external control stgnals sent to
the MDS-B1 through the REMOTE (25-pin) connector on the rear
panel.
Rack mounting compatibility
Three MD recorders can be mounted side by side in a standard 19"
EIA rack.
Chapter 1 Overview 1-5
‘This chapter explains the names and functions of each part of the
MDS-B1.
2-3 Remote Controller delerencoadiaoivanouDia Üb02000000000000500I0000000888 * ..2-6
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O PLAYBACK/RECORD level controls
Adjust the analog input/output reference level
during recording or playback by turning the control
for each channel (CH-1:L/CH-2:R) with a bladed
screwdriver.
@ MODE switch
Use to select monaural or stereo mode for the
analog input/output signal.
When MONO is selected during playback, the
signals of channel 1 and 2 are lowered to below —6
dB, then output from ANALOG OUT CH-1(L) and
CH-2(R).
When MONO is selected during recording, the
signal from ANALOG IN CH-1(L) and ANALOG
IN CH-2(R) are lowered to below —6 dB, then
recorded to channels 1 and 2.
EST
If a signal is recorded from only one ANALOG IN
connector in MONO mode, the recording level will
be —6 dB lower than that recorded in STEREO
mode. In this case, use the PLAYBACK/RECORD
level control to bring the recording level up to that
of STEREO mode.
© POWER switch
Press to turn on the MD recorder. Press again to
turn the MD recorder off.
O AC IN connector
Connect to an AC outlet with the supplied AC
power cord.
Q + (ground) connector
Connect directly to the ground.
OQ REMOTE connector (D-sub 25-pin)
Connect to external equipment for remote control.
13 1
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25 14
Pin assig
1 |GND (for status out) | 14 |CUE STDBY LED
OUT
2 |PLAY STATUS OUT |15 |PAUSE STATUS OUT
EOM STATUS OUT |16 |REC STATUS OUT
STOP STATUS OUT {17 |PLAY/PAUSE LED
OUT
EJECT LED OUT 18 [SV
NEXT COMMAND IN [19 [Reserved
5
6
7 | GND (for command IN) | 20 {PLAY COMMAND IN
8
9
Reserved 21 |STOP COMMAND IN
EDIT COMMAND IN | 22 | DISPLAY COMMAND
IN
10 |ENTER COMMAND IN{ 23 | REC COMMAND IN
11 {KILL LOCAL 24 | CUE STDBY
COMMAND IN COMMAND IN
12 | Reserved 25 | PREVIOUS
COMMAND IN
13 | Reserved
Do not set more than two COMMAND IN pins
(pin numbers 6, 9, 10, 20, 21, 22, 23, 24, and 25) to
LOW at the same time as this will cause the MD
recorder to malfunction.
& ANALOG OUT connectors (CH-1:L/CH-
2:R, XLR 3-pin)
Output analog audio signals.
© ANALOG IN connectors (CH-1:L/CH-2:R,
XLR 3-pin)
Input analog audio signals.
Pin assignment
IN OUT
Chapter 2 Function of Paris and Controls
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9 CLEAR key
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Character/Numeric keys
Remote controller
2-6 Chapter 2 Function of Parts and Controls
O NAME key
Press to activate the title function.
@ CAPS (capital letters) key
Press to enter uppercase letters.
© Operation keys
Use the following keys to do the same operations
as the respective keys on the MD recorder.
EDIT/NO key
Press to specify or cancel an editing function:
ENTER/YES key
Press to execute a specified editing function.
REC (recording) key
Press once to pause recording, then press the
PLAY/PAUSE key to start recording.
STOP key
Press to stop playback or recording, or to cancel
program play.
PLA Y/PAUSE key
Press to start playback or recording. Press during
playback to temporarily stop the MD recorder;
press again to cancel pause.
CUE STDBY (standby) key
Press to return to the position where you last
pressed the PLA Y/PAUSE key. After finding the
position, the MD recorder enters playback pause.
Use this key to check or return to a cuing position.
OQ CLEAR key
Press to erase an entered character or number.
@ PROGRAM key
Press to activate program play.
© DISPLAY key
Press this key to display disc information. The
following items appear in sequential order each
time you press this key.
When the recorder is stopped: Disc title, total
track number and total disc playing time,
remaining recording time on disc. (In case of
premastered discs: disc title, total track number
and total disc playing time.)
During playback or playback pause: Track title,
remaining playing time of current track. and
elapsed playing time.
Hold down the key for three seconds while
the track title or elapsed playing time is on and
the display will alternate with the remaining
playing time (auto display function).
During recording: Elapsed recording time of
current track, remaining recording time on disc.
Press the DISPLAY key together with the STOP
key to activate the menu setting function.
© <>] (Previous/Next) key
Press the respective key to cue to the beginning of
the previous or next track.
Hold down the key during playback to scan
backward or forward with sound output.
© SCROLL key
Press to scroll titles over 13 characters in length.
O ; (Semicolon) key
Press while entering a title to divide the title into
independently displayable parts.
O Character/Numeric keys
Use the numeric keys to specify tracks for
immediate playback or program play. Use the
Character keys to enter disc and track titles.
Chapter 2 Function of Parts and Controls
2-7
anter 7
m
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This chapter explains precautions, making connections, taking care of
discs, and setting the reference level of analog input/output signals.
3-1
3-2
3-3
3-4
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3-1-1 Installation Precautions.........................00.....0000 0... 3-2
3-1-2 Handling Precautions.....................eeee eee 3-2
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Setting the Analog Input/QOutput Reference Level ............. 3-5
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3-1 Precaut
Install the MD recorder on a flat surface in a temperature-controlled
room. Avoid using or storing the MD recorder at a location that is:
* extremely hot or cold.
* damp.
* subject to severe vibrations.
* subject to strong magnetic fields.
subject to many hours of direct sunlight or close to heating
equipment.
* Check the MD recorder's operating voltage before you plug it in. It
must be identical with that of your local power supply.
* If you drop any liquid or metal object inside the MD recorder,
immediately stop using it, unplug the power cord from the socket,
and contact Sony service personnel.
* If the MD recorder will be unused for a long time, make sure to
unplug its power cord from the socket. When unplugging the power
cord, grasp it by the plug. not the cord.
* Never remove the cabinet. The laser light used in the MD recorder
can cause damage to your eyes. If the MD recorder needs to be
inspected, contact Sony service personnel.
Condensation
Bringing in the MD recorder from a cold place or turning on the room
heating may cause moisture to condense on the lens within the MD
recorder, resulting in abnormal operation. If this occurs, leave the
power on. The moisture will evaporate within an hour and the MD
recorder will function normally again. If the MD recorder does not
operate normally after a few hours, contact Sony service personnel.
If trouble occurs
Should you detect abnormal noise, smell, or smoke, immediately turn
off the power, unplug the power cord from the socket, and contact
Sony service personnel.
AC power cord
Do not use any power cord other than the one supplied with the MD
recorder.
3-2 Chapter 3 Preparations
3-2 Connections
* Turn off all equipment before connecting or disconnecting any
cables.
» Insert all electrical plugs firmly since incomplete connections may
cause noise.
* Use a cord somewhat longer than needed to prevent the plug from
being pulled out when jarred or shaken.
Analog mixing console, compact disc player, etc.
Analog audio signal
Remote controller (supplied)
A
Rear panel of the MDS-B1
Remote signal
(to the REMOTE connector
on the front panel)
Analog mixing console,
tape recorder, etc.
Analog audio signal
Remote signal
External equipment «
AC power cord
baaa 120 V AC ог
230 - 240 V AC
Basic connection examples
Chapter 3 Preparations
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3-4 | Chanter 1 Pronaratinne
Unlike CDs (Compact Discs), the MiniDisc is encased within a hard
plastic cartridge which allows you to handle it without fear of dust or
fingerprint contamination. However, a MiniDisc that has been
contaminated or bent may cause the MD player to malfunction. To
prevent damage to the contents of a disc and to enjoy clear sound
permanently, take the following precautions when handling a
MiniDisc:
Do not open the shutter to expose the disc
If you do so, the data on the disc may be damaged.
Shutter Cartridge
Handling MiniDiscs
Store MiniDiscs in a proper location
Do not place the cartridge where it will be subject to extremes of
sunlight, temperature, moisture or dust.
Cleaning the MiniDisc
Gently wipe the cartridge with a dry soft cloth to remove dust.
3-4 Setting the Analog Input/Output Reference
Level
You can adjust the analog input/output reference level during
recording or playback within a range of + 8 dB to — 12 dB by turning
the PLAYBACK/RECORD level controls on the rear of the MD
recorder. The analog input/output reference level is set at +4 dB at —20
dB from the full bit level at the factory.
Setting the reference level
1 Playback a disc recorded at -20 dB from the full bit. Adjust the
output level of the ANALOG OUT connectors with the
PLAYBACK (CH-1/CH-2) controls.
2 Input an audio signal to the ANALOG IN connectors and adjust
the recording level with the RECORD (CH-1/CH-2) controls.
NT
Adjust the PLAY BACK/RECORD level controls with a bladed
screwdriver. Do not use excessive force when turning the screwdriver
or touch the screwdriver to any part other than the PLAYBACK/
RECORD level controls.
Chapter 3 Preparations
3-5
Chapter 7
=
This chapter explains the basic procedures for recording an MD,
displaying data during recording, and recording disc and track titles.
4-1 Recording Procedure umm.
4-2 Display Information During Recording esse 4-4
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Chapter 4 IH.
4-1 Recording Procedure
4-2 | Chapter 4 Recording
If the inserted disc already contains recorded material, the MD
recorder will automatically record the new material at the end of the
existing material with a new track number.
To adjust the recording level, see “3-4 Setting the Analog Input/Output
Keference Level” on page 3-5.
To record track numbers automatically at points of low signal level, see “7-4
Recording a Track Number Automatically (LevelSync Setting)” on page 7-6.
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Recording procedure
1 Press the REC key.
The MD recorder enters recording pause. (The REC key lights and
the PLAY/PAUSE key flashes.)
2. Press the PLAY/PAUSE key.
Recording starts. (The REC and PLAY/PAUSE keys light.)
3 Play the sound source to be recorded.
The track number being recorded and elapsed recording time
appear in the display.
To record a track number manually during recording
Press the REC key at the required point.
To stop recording
Press the STOP key.
To stop recording temporarily
Press the PLAY/PAUSE key.
To resume recording, press the PLAY/PAUSE key again.
A
To eject the disc
Press the STOP key to stop the MD, then press the EIECT key.
If the MD recorder stays in recording pause for more than ten minutes,
the MD recorder cancels recording pause, then stops.
Preventing accidental erasure
Slide the record-protect tab to open the slot. To allow recording again,
slide the tab to close the slot.
Record-protect tab
Rear of the disc
To prevent
recording over,
slide the tab in the
q direction of arrow.
The recording system in your MD recorder is radically
different from those used in cassette and DAT decks
and 1s characterized by the limitations described below.
“Disc Full” lights up even before the disc has
reached the maximum recording time (60 or 74
minutes)
When 255 tracks have been recorded on the disc, “Disc
Full” lights up regardless of the total recorded time.
More than 255 tracks cannot be recorded on the disc.
“Disc Full” lights up before the maximum number of
tracks is reached
Fluctuations in emphasis within tracks are sometimes
Interpreted as track intervals, incrementing the track
count,
To protect a MiniDisc against accidental erasure
The total recorded time and the remaining time on
the disc may not equal the maximum recording time
(60 or 74 minutes)
Recording is done in minumum units of 2 seconds each,
no matter how short the material. The contents recorded
may thus be shorter than the maximum recording capacity.
Disc space may also be further reduced by scrathees.
“TOC Reading” indication appears for a long time
If the inserted recorded disc 15 brand new, the "TOC
Reading” indication appears on the display longer than tor
those that have been used.
Playback of a track of under 4 scconds may be
accompanied by sound dropout at the start of the next
track or misoperation of the MD recorder.
Chapter 4 Recording | 43
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4-2 Display Information During Recording
Changing the display information during recording
Lach press of the DISPLAY key during recording changes the
information on the display as follows:
* Recorded time of the current track
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* Remaining recording time on disc
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4-3 Adding Disc and Track Titles
Adding a disc title
Use the title function to add titles to your own discs and tracks with
the character/numeric keys on the remote controller.
The maximum length of a single title is 100 characters, and the
maximum number of characters for all titles on a disc is 1,792.
Newly added titles are temporarily stored in the recorder’s memory
(not saved to disc). To record the titles to the disc, press the STOP key
or eject the disc before turning off the power.
For more details, see “6-1 Overview of Editing Functions” on page
6-2.
You can use this procedure while the MD recorder is stopped to add a
title to the MiniDisc.
CLEAR key
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Adding a disc title
À insert the disc, then press the NAME key while the MD recorder
Is stopped.
A tlashing cursor appears in the display.
DISC \ by 4 5
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ZN 11 12 13 14 15
16 17 18
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2 Type in a disc title with the character/numeric keys on the remote
controller.
3 Press the NAME key.
The disc title is entered,
Chanter 4 Rocardimn | 4-5
Chapter 4 |1! И
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4-3 Adding Disc and Track Titles
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Making a correction
Press the CLEAR key to erase a typing error, then enter the
correct character.
Adding a track title
Follow the procedure below to add a title to a track during playback,
playback pause, or recording.
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Adding a track title
1 Press the NAME key while playing, pausing or recording the track
to be named.
A flashing cursor appears in the display.
TRACK NE, 4 5
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71 11 12 13 14 15
в 16 17 18
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dB 004 —M 11 + «4 0
2 Type in the track title with the character/numeric keys on the
remote controller.
3 Press the NAME key.
The track title 1s entered.
Making a correction
Press the CLEAR key to erase a typing error, then enter the correct
character.
Dividing a track title into separate parts
When you add a track title, you can divide it by using semicolons,
then display each part independently by pressing the DISPLAY key
during playback of the track.
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Dividing a track title into separate parts
H “Protected” appears in the display
The record-protection slot on the disc 1s open and titles cannot be
written to the disc. To add titles to the disc, eject the disc and close the
slot.
Chanter 4 Recording | 4-7
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This chapter outlines the various playback functions of the MDS-B1
-— and explains the procedures for playing tracks, locating tracks, and
~~ displaying information during playback.
5-1 Overview of MDS-B1 Playback Functions ..............n2ecosne2 5-2
5-2 Playback PrOCEQUTE …………ceosserseneenmenennsnäseänenannsnennnûnüSsS
5-2-1 Playing Back A)
5-2-2 Locating a Specific Position (Search) ......................... 5-6
5-3 Locatinga Track ...e.eeconeoroococorneroconensoroocaconcecararanerreneraranancenee 7
5-3-1 Locating a Specific Track .......................eem0venenii 5-7
5-3-2 Locating the Beginning of a Track (AMS).................. 5-8
5-4 Display Information During Playback ...........<ensecoreoconeros 5-9
5-5 Playing Tracks Repeatedly ............ce..c.00ceccrcccococozar neones SL
5-6 Playing Back a Program (Program Play) ..............onorccoocoe 9-12
Chapter 5 I
9-1 Overview of MDS-B1 Playback Functions
The MDS-B I's many playback functions can be used 1n a variety of
ways in broadcasting. This section gives an overview of these
functions and their application.
ее.
AUTO PAUSE and AUTO CUE functions
AUTO PAUSE function
When AUTO PAUSE is on, the MD recorder pauses atter locating the
track.
How to activate it: Specify by menu,
For details, see page 7-4.
Purpose: Prevents on-the-air mistakes by pausing the MD recorder
right before the start of play. When AUTO PAUSE is off, the
MD recorder starts playing back immediately after locating the
track.
AUTO CUE function
When the AUTO CUE function is on, the MD recorder changes to
playback pause when it detects a rise in audio signal during a silent
portion 58 dB or less).
How to activate it: Specify by menu.
For details, see page 7-4.
Purpose: For precise cueing to play back sounds instantly.
When the MD recorder reaches a track with no sound while
AUTO CUE is on
During one-track repeat play: The MD recorder pauses at the
beginning of the track.
During all-tracks repeat play or when the repeat play function is
off: The MD recorder locates the point where the audio level rises
at the beginning of the next track.
Relation between the track location operation and AUTO PAUSE/AUTO CUE
function
The following table indicates the respective track location operation of
the MD recorder in relation to AUTO PAUSE/AUTO CUE function.
When locating a specific track with the numeric keys
AUTO PAUSE and | Begins playback immediately after locating the
AUTO CUE oft specified track.
AUTO PAUSE on Changes to playback pause after locating the
beginning of the specified track.
AUTO CUE on Changes to playback pause just as the audio level
rises (above —58 dB) at the beginning of the located
| track.
5-2 | Chapter 5 Playback
Ta
When locating the beginning of a track by pressing the
NEXT or PREVIOUS key (AMS)
AUTO PAUSE and | Displays the track number after locating the specified |
AUTO CUE off track, then stops.
AUTO PAUSE on Changes to playback pause after locating the
beginning of the specified track.
—
AUTO CUE on Changes to playback pause just as the audio level
rises (above —58 dB) at the beginning of the located
track.
Repeat playback functions
Three types of repeat playback functions can be used.
One-track repeat playback
The MD recorder plays back a specific track repeatedly.
How to activate it: Set the REPEATI1/OFF/REPEAT ALL
switch to REPEAT].
Purpose: For repeated playback of the same material.
All-tracks repeat playback
The MD recorder plays back all tracks repeatedly and in sequential
order.
How to activate it: Set the REPEAT1/OFF/REPEAT ALL
switch to REPEAT ALL.
Purpose: For repeated playback of a recorded or edited disc with
a particular track seguence.
Program repeat playback
The MD recorder plays back a program repeatedly.
How to activate it: Set the REPEAT 1/OFF/REPEAT ALL
switch to either REPEATI or REPEAT ALL, then press the
PROGRAM key.
Purpose: For repeated playback of the programmed tracks.
Chapter 5 Playback 5-3
Chapter 5 HITT
Chapter 5 IHHHHHHH
5-1 Overview of MDS-B1 Playback Functions
The following table indicates
the MD recorder in relation to AUTO PAUSE.
the respective repeat play operation of
During one-track During ali-tracks When repeat play
repeat play repeat play function is OFF
When
AUTO 1 | 2 , 3 y |? , 3 , 1 2 q
PAUSE
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track.
When AUTO PAUSE is on, the MD recorder pauses after locating the
When AUTO CUE is on, the MD recorder pauses just as the audio level
rises at the beginning of the located track.
Cue standby function
5-4 | Chapter 5 Playback
Pressing the CUE STDBY key causes the MD recorder to return to
and enter playback pause at the last cueing position specified by
pressing the PLAY/PAUSE key. Use this key to check or go to a
previously set cueing position.
During program play, this function operates only within the currently
playing track, and cannot be used to return to a cueing position within
a previously played back.
(D EJECT key
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|
Chapter 5. 141
STOP key PLAY/PAUSE key
Playing Back
Press the PLAY/PAUSE key.
When AUTO PAUSE and AUTO CUE are off:
The MD recorder starts playing. The current track title appears in the
display.
When AUTO PAUSE 1s on:
The MD recorder enters playback pause at the beginning of the first
track. The current track title appears in the display.
When AUTO CUE is on:
The MD recorder enters playback pause just as the audio level rises
(above —58 dB) at the beginning of the first truck. The current track
title appears in the display.
To stop playback
Press the STOP key.
To stop playback temporarily
Press the PLAY/PAUSE key.
To restart playback, press the PLAY/PAUSE key again.
To eject the disc
Press the STOP key to stop playback, then press the EJECT key.
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Your MiniDisc recorder is designed as a stereo system
and cannot be used to play back monaural format MDs.
Chapter 5 Playback | 5-5
Chapter 5 HHH
5-2 Playback Procedure
5-6 | Chanter 5 Plavback
у E ;
VE -
MERA AL A |
To tind a specific position on the MD, use the NEXT and PREVIOUS
keys during playback to quickly scan forward or backward.
To forward scan the disc
Hold down the NEXT key during playback. Releasing the key causes
the MD recorder to play from the new location.
To backward scan the disc
Hold down the PREVIOUS key during playback. Releasing the key
causes the MD recorder to play from the new location.
Tracks created through editing may exhibit sound dropout during
search operations.
o
PREVIOUS key e—Ee mM [-]
NEXT key
Locating a specific position
9-3 Locating a Track
Access specific tracks instantly by entering their respective track
numbers with the numeric keys on the remote controller.
It AUTO PAUSE and AUTO CUE are off, the MD recorder begins
playback immediately after locating the specified track.
H AUTO PAUSE is on, the MD recorder changes to playback pause
after locating the beginning of the specified track.
If AUTO CUE is on, the MD recorder changes to playback pause just
as the audio level rises (above —58 dB) at the beginning of the located
track.
For details on the AUTO PAUSE and AUTO CUE functions, see “7-2 Setting
the Timing of the EOM Indication” on page 7-3.
To specify track numbers greater than 10
Use the >10 key to specify the respective power of ten.
Example:
To locate the 15th track, press the >10 key once, then
press 1 and 5.
To locate the 215th track, press the >10 key twice, then
press 2, 1, and 5.
Chapter 5 [HTH] Hp
Numeric keys
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Locating a specific track
Chapter 5 Playhack | 5-7
9-3 Locating a Track
When the MD recorder is stopped or in playback pause, you can
quickly skip to any track number before or after the current one by
pressing the NEXT or PREVIOUS key. (Holding down a Key causes
the track numbers to change quickly.)
If AUTO PAUSE and AUTO CUE are off, the MD recorder displays
the track number after locating the specified track, then stops.
It AUTO PAUSE is on, the MD recorder changes to playback pause
after locating the beginning of the specified track.
If AUTO CUE is on, the MD recorder changes to playback pause just
as the audio level rises (above —58 dB) at the beginning of the located
track.
For details on the AUTO PAUSE and AUTO CUE functions, see "7-2 Setting
the Timing of the EOM Indication” on page 7-3.
Chapter 5 HII
To go to the beginning of a preceding track
Press the PREVIOUS key. Each press of the key decreases the track
number by one.
To go to the beginning of a proceeding track
Press the NEXT key. Each press of the key increases the track number
by one.
To go quickly to the last track on the disc
Press the PREVIOUS key after inserting the disc.
PREVIOUS key
NEXT key
Locating a specific track
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"AMS is the abbreviation tor Automatic Music Sensor.
5-8 | Chapter 5 Playback
9-4 Display Information During Playback
Changing the display information during playback
Each press of the DISPLAY key during playback or playback pause,
changes the information on the display as follows:
+ Track title!
HAP P Y
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* Remaining playing time m
of the current track
Elapsed playing time
of the current track ~~
|
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Chapter 5 INE:
TN
"If the track títle has been divided into separate parts
by semicolons, cuch part is displayed independently
cach time you press the DISPI AY key.
To divide a track title into separate parts, see
"Dividing a track title into separate parts” on page
4-7.
Chanter & Ptavnack
| 5-9
Chapter 5 IH
9-4 Display Information During Playback
Alternating display of title of current track and the remaining playing time (auto
display function)
To cause the title of current track and remaining playing time to
aliernately appear on the display, hold down the DISPLAY key for
about three seconds during playback, then release it.
Use this function when you want to check the remaming time and title
of the current track during playback.
To cancel the alternating display, hold the DISPLAY key down for
about three seconds again.
When an end of a track approaches
5-10 | Chantar K Plavhack
When the end of a track approaches, the indication in the display starts
to flash (EOM indication).
To specify the timing of the indication, see “7-2 Setting the Timing of the
EOM Indication” on page 7-3.
Display when the end of the track approaches
If the EOM indication function activates while the auto display
function is on, the track title stays on and begins to flash.
Chapter 5 i
9-6 Playing Back a Program (Program Play)
Use the program play function to specify the playback sequence of
multiple tracks.
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Program play
1 Press the PROGRAM key of the remote controller while the MD
1s stopped.
The PROGRAM indicator turns on.
2 Enter the numbers of the tracks to be played in the order of their
playback.
When you enter a track number, the display shows the track
number and the order of the specified track, followed by the total
program time.
3 Press the PLAY/PAUSE key.
When AUTO PAUSE and AUTO CUE are off:
Program play starts from the first track of the program.
When AUTO PAUSE is on:
The MD recorder enters playback pause at the beginning of the
first track of the program.
When AUTO CUE is on:
The MD recorder enters playback pause Just as the audio level
rises (above —58 dB) at the beginning of the first track of the
program.
To enter track numbers greater than 10
Press the >10 key to indicate the respective power of ten.
Example:
To enter the 15th track, press the >10 key once, then
press | and 5.
To enter the 215th track, press the >10 key twice, then press
2, 1, and 5.
E an |
9-5 Playing Tracks Repeatedly
You can select the following repeat functions with the REPEAT /
OFF/REPEAT ALL switch.
REPEATI: The MD recorder plays back the current track
repeatedly.
OFF: The MD recorder plays back each track once.
REPEAT ALL: The MD recorder plays back all tracks repeatedly
and in sequential order. During program play, the MD recorder
plays back selected tracks in a programmed order repeatedly.
—
REPEAT1/OFF/REPEAT e) Ie)
ALL switch _
е В В 1 [-'
Playing tracks repeatedly
Once you have specified the repeat function during program play, you
cannot use the REPEAT] setting to playback repeatedly individual
tracks within the program.
Chapter 5 Playback | 5-11
Chapter 5 |!
A
To erase tracks from a program
Press Ihe CLEAR key. The displayed track number is erased from
the program. To continue erasing (racks one at a time, press the
CLEAR key repeatedly.
To erase an entire program
Press the STOP key.
To stop program play
Press the STOP key. Pressing the STOP key again erases the entire
program.
To cancel program play
Press the PROGRAM key.
The PROGRAM indicator turns off.
Chanter 6 Plavhack | 5-13
|
"E
|
Chapter 5
This chapter explains MD editing functions such as erasing, dividing,
combining, and moving tracks.
6-1 Overview of Editing FUNCtIONS œ……eessceguereessencensencencrancncenes 6-2
6-2 Erasing Recordings (Erase Function) ..........e..........nonccrores 6-3
6-3 Dividing a Recorded Track (Divide Function) ....................6-5
6-4 Combining Recorded Tracks (Combine Function) ............6-7
6-5 Moving Recorded Tracks (Move Function) ........................6-9
chapter 6 III
6-1 Overview of Editing Functions
Purpose of editing functions
The MDS-B1 editing functions allow you to rearrange the contents of
recorded MDs to make it easy to locate specific tracks during
playback.
Front panel or remote controller operations
You can do MD editing on either the front panel on the MD recorder
or the remote controller. Editing procedures are identical in both
cases, except in the specification of tracks to be edited, which 1s done
with the numeric keys on the remote controller and with the NEXT
and PREVIOUS keys on the front panel.
Selecting the editing function
Select the editing function by pressing the EDIT/NO key. Each press
of the key displays a different editing function as follows:
« Erase? — For erasing recorded tracks
+ Divide? — For dividing recorded tracks
+ Combine? — For combining recorded tracks
» Move? — For moving recorded tracks
Tips on editing
If an editing procedure increases or decreases the number of tracks on
the MD, the MD recorder will automatically renumber the tracks on
that MD. For example, if you erase the second track, the third track
becomes track 2, and all proceeding track numbers decrease by one.
Since track numbers may change several times during editing
operations, you should check the name and contents of all tracks as
you cdit them.
STOP key function
If you make any changes to an MD using the editing tunctions, you
must press the STOP key to record the changes in the table of contents
(TOC) area of the disc before turning off the MD recorder. It you
don't do this, the editing changes will not be saved and the original
MD contents will be unchanged.
Y ou can press the STOP key to record changes after cach editing
operation, or save all changes together by pressing STOP or EJECT
key after the last editing operation.
6-2 Erasing Recordings (Erase Function)
Use the erase function to erase à single track, successive tracks, or all
tracks from a recorded disc.
After erasing a track, each track number following the erased track
and the total number of tracks decrease by one.
Erasing a single track
You can erase a single track while the MD recorder is stopped,
playing, or in playback pause status.
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Erasing a single track
1 Enter the number of the track to be erased with the numeric keys
(or the NEXT or PREVIOUS key on the front panel).
2 Press the EDIT/NO key until “Erase?” appears.
3 Press the ENTER/YES key.
“Complete” appears for a few seconds, then disappears when the
specified truck has been erased.
To continue erasing tracks
Repeat steps 2 and 3 to erase more tracks.
To cancel the erase function
Press the EDIT/NO or STOP key to make “Erase?” disappear.
Chapter 6 Ediing Functions | 6-3
|:
|
ny
Chapter 6
6-2 Erasing Recordings (Erase Function)
Notes.
« If *Erase!!?” appears, it means that the track was recorded or edited
on another MD recorder und is write-protected. To erase the track,
press the ENTER/YES key while “Erase!!?” 18 displayed.
* If “Protected” appears, it means that the record-protect slot on the
MD is open and the track cannot be erased. Eject the disc and close
the slot, then reinsert the MD to erase the track.
Erasing all tracks on an MD
You can erase all tracks on an MD when the MD recorder 1s stopped.
12
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Chapter 6 HHH
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Erasing all tracks
1 Hold down the EDIT/NO key for about a second until “All
Erase?” appears.
2 Press the ENTER/YES key.
“Complete” appears for a few seconds, then disappears when all
recorded tracks have been erased.
To cancel the Erase Function
Press the EDIT/NO or STOP key to make “All Erase?” disappear.
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The remaining recording time does not increase even
after erasing numerous short tracks
Trucks of under 8 seconds in length are not counted and
so erasing them may not lead to an increase in the
recording time.
0-4 | Chapter 6 Editing Functions
6-3 Dividing a Recorded Track
(Divide Function)
To randomly access certain portions of a track, the divide function
allows you to create separate tracks for each portion. You can also use
the divide function to erase selected portions of a track, by first
specifying the portion. as a separate track, then erasing that track (see
"6-2 Erasing Recordings (Erase Function) on page 6-3).
Do the divide function while playing the disc.
2 3,4 — PROGRAM key
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Dividing a recording track
1 While playing the track to be divided, press the PLAY/PAUSE
key at the point where the new track is to begin.
The MD recorder changes to playback pause.
2 Press the EDIT/NO key until “Divide?” appears.
3 Press the ENTER/YES key.
“Rehearsal” and “Position ok?” alternately appear and the starting
portion of the new track plays back repeatedly.
Mis
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11 12 13 14 15
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(Contined)
Chapter 6 Editing Functions | 6-5
Chapter 6 Hin
6-3 Dividing a Recorded Track (Divide Function)
4 When you find the correct position, press the ENTER/YES key,
“Complete” appears for a few seconds, then disappears when the
track has been divided. The MD recorder then begins playing from
the point of division.
If the starting position is incorrect
Press the EDIT/NO key, then, while monitoring the sound, press the
>| (Next) or € (Previous) key to change the starting position.
You can move the starting position in steps of 0.06 seconds, up to —
128 to +127 sieps from the original position.
“Rehearsal” and “Position ok?” alternately appear in the display while
the starting position plays repeatedly.
To change the step interval
Press the PROGRAM key to select +1 for a step interval of £0.06
second, or +2 for a step interval of +0.12 second.
To cancel the divide function
Press the EDIT/NO or STOP key to make "Divide?" disappear.
* A new track created by the divide function will have no title even tf
the original track has one.
To add a title to the new track, see “4-3 Adding Disc and Track Tules” on
page 4-5.
* If “Protected” appears, it means that the record-protect slot is open
and the track cannot be divided. Eject the disc and close the slot,
then reinsert the MD and divide the track.
* Some tracks of under 8 seconds long may not be divided.
6-6 | Chapter 6 Editing Functions
6-4 Combining Recorded Tracks
(Combine Function)
Use the combine function to combine consecutive tracks on a recorded
disc.
You can combine tracks while the MD recorder Is stopped, playing, or
in playback pause status.
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Combining recorded tracks
—
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1 Specity the second track of the two tracks to be combined with the
numeric keys (or the NEXT and PREVIOUS keys on the front
panel).
For example, enter 4 to combine tracks 3 and 4.
TRACK as
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11 12 13 14 15
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2 Press the EDIT/NO key until “Combine?” appears.
(Contimued)
Chapter 6 Editing Functions | 6-7
6-5 Moving Recorded Tracks (Move Function)
Use the move function to change the order of specific trucks.
You can change the order of the tracks while the MD recorder 1s
stopped, playing or in playback pause status.
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Moving recorded tracks
1 Specify the track to be moved with the numeric keys (or the
NEXT and PREVIOUS keys on the front panel).
Hor example, enter 3 to move track 3.
TRACK 12345
3 6 7 8
>
TOC E =
EDIT da 00 -40 -25 -12 À À 0
2 Press the EDIT/NO key until “Move?” appears.
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(Continued}
Chapter 6 Editing Functions | 6-9
Chapter 6 i
6-5 Moving Recorded Tracks (Move Function)
3 Press the ENTER/YES key.
The number of the track to be moved and the new track position
appear.
-- о
TRACK 3
331
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dB -00 + 0-7 4 4 X
4 Specify the new position of the specified track with the numeric
keys (or the NEXT and PREVIOUS keys on the front panel).
For example, enter 5 to move track 3 to track position 5.
TRACK 3
5+>0
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— ||
5 Press the ENTER/YES key.
“Complete” appears for a few seconds, then disappears when the
track has been moved.
* If Protected” appears, it means that the record- protect slot is open
and the track cannot be moved. Eject the disc and close the slot, then
reinsert the MD and move the track.
* Some tracks of under 8 seconds long may not be moved.
Re.
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This chapter explains the MDS-B]’s menu-selected functions that
support and facilitate MD recorder operations during on-the-air
broadcasting.
7-1
7-2
7-3
7-4
7-5
Using the Menu FUNCtIONS .1oes-souserrersseenmenmensenssssncarssorsansusessess 72
Setting the Timing of the EOM Indication ……ueisenee 7-3
Pausing Before Playback (AUTO PAUSE and
AUTO CUE Functions) ..........e...e.00eacocacansnaccconsoracencacancecore 74
Recording a Track Number Automatically (Level Sync
Setting) ......encesoccoraccaccccrancocareacoooreerarcoraoecacueracencacaneccaroorecerenecone 1-0
Reading the Hours Meter ................00comocerrmaree o noe 7-8
7-2 Setting the Timing of the EOM Indication
The EOM indication can be set to flash between 1 and 35 seconds
before the end of à track to indicate that the end is approaching. Use
the procedure below to set the timing.
- La —
Setting the timing of the end-of-message (EOM) indication
1 Press the STOP and DISPLAY keys simultaneously.
The EOM (end-of-message) function goes on.
ELM HE
---
2 Press the NEXT or PREVIOUS key to select the timing.
3 Press the PLAY/PAUSE key to enter the EOM timing.
4 To continue with another menu function, press the DISPLAY key
until the function appears.
lo cancel the menu, press the STOP key.
Chanter 7 Menu Functions | 7-3
Chapter 7 VITRE
7-3 Pausing Before Playback (AUTO PAUSE
and AUTO CUE Functions)
AUTO PAUSE function
When AUTO PAUSE is on, the MD recorder changes to playback
pause at the start of the specified track, then starts playing the track
when you press the PLAY/PAUSE key.
The AUTO PAUSE function is useful for pre-cueing tracks on
multiple MD recorders during on-the-air broadcasting.
AUTO CUE function
When AUTO CUE is on, the MD recorder changes to playback pause
just as the audio level rises (above —58 dB) at the start of à track. You
can then play the track by pressing the PLAY/PAUSE key.
This function is useful for cueing to and delivering special sound
effects during plays and other productions.
Activating the AUTO PAUSE/AUTO CUE functions
1,2, 5D
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hapter 7 | ||
~~
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Activating the AUTO PAUSE/AUTO CUE functions
1 Press the STOP and DISPLAY keys simultaneously.
A menu function appears.
2 Press the DISPLAY key until “AP AC OFF” appears.
рее = .
7-4 | Chanter 7 Menu Frinctinna
AA
3 Press the NEXT or PREVIOUS key to select the setting.
AP AC OFF: AUTO PAUSE and AUTO CUE are off.
A. PAUSE ON: AUTO PAUSE is on.
A. CUE ON: AUTO CUE is on.
H. FHUSE OH
4 Press the PLAY/PAUSE key to enter the selected setting.
5 To continue with another menu function, press the DISPLAY key
until the function appears.
To cancel the menu, press the STOP key.
Chanter 7 Mena Functions | 7-5
hepter 7 HUT PE
~~
и
7-4 Recording a Track Number Automatically
(LevelSync Setting)
LevelSync setting is essentially the adding of track numbers at
specified points while you record. This allows you to quickly locate
those points later either by directly specifying the track number or by
using the AMS function.
When track numbers are added automatically, the MD recorder system
records track numbers whenever it detects a silent portion (i.c., the
space between tracks). Manually you record track numbers by
pressing the REC key during recording.
To add new track numbers to a track that has already been recorded, you
must use the divide function to divide the track. See “6-3 Dividing a
Recorded Track (Divide Function)” on page 6-5.
1,2, ‚9
SONY
|
}
Chapter 7 Hl
LevelSync setting function
1 Press the STOP and DISPLAY keys simultaneously.
A menu function appears.
2 Press the DISPLAY key until “LevelSyncOFF” appears.
Level SancdFF
7-6 | Chaorvar 7 Mama Eninetinne
Emme EEE
3 Press he NEXT or PREVIOUS key to select the setting.
ON: Track marks are automatically recorded by the MD
recorder system when it detects a sudden rise in audio level
after a silent portion (i.e., a signal level of less than —58 dB
that continues for 1.6 seconds, then jumps to —58 dB or
more). The rise 1s taken to be the start of a new track.
OFF: À track mark is recorded when you press the REC key
during MD recording.
4 Press the PLA Y/PAUSE key to enter the levelsync setting.
5 To continue with another menu function, press the DISPLAY key
until the function appears.
To cancel the menu, press the STOP key.
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Track numbers are not recorded correctly
Incorrect assignment or recording of track numbers may
result when certain CDs are recorded with the
“LevetSync ON” indication on,
Chapter 7 Menu Functions | 7-7
Chapter 7 IN
7-5 Reading the Hours Meter
This function allows you to display the accumulated operating time of
the laser diode (during recording operations) and of the spindle motor.
Use this information as the basis for replacing the BU block.
1,2,3
№)
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1,3
Reading the hours meter
1 Press the STOP and DISPLAY keys simultaneously.
A menu function appears.
2 Press the DISPLAY key until the hours meter showing the
accumulated operating times appears.
L: Accumulated laser diode operating time.
5: Accumulated spindle motor operating time.
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3 To continue with another menu function, press the DISPLAY key
until the function appears.
To cancel the menu, press the STOP key.
When the BU block is replaced, a new EEP-ROM is installed and the
hours meter ts zeroed. Since this resets the other menu functions as
well, you must make the applicable settings again.
: Lo Хо
5 This chapter explains the cleaning of MD recorders and the meaning
of display messages.
8-1 Cleaning the MD Recorder ..........encccononcconecocorcacerarocenccraneeee. 8-2
8-2 a Display Messages BPRP RONAN PER PANIC II INIT IR RENIN EI RUNNION RIEItRIO Estat INttises 8-2
Chapter 8 il
8-1 Cleaning the MD Recorder
Use a soft cloth slightly moistened with a mild detergent solution to
clean the cabinet and panel surface. Do not use solvents that may
damage the surface such as paint thinner, benzine, or alcohol.
8-2 Display Messages
8-2 | Chapter 8 Maintenance
The following table explains in the various messages that appear in
the display window.
Blank Disc A new (blank) or erased disc has been inserted.
Cannot EDIT An attempt was made to edit the MD during program play,
or the inserted disc contains Japanese ideograms.
Disc Error The disc is abnormal (scratched or missing a TOC).
Disc Full The disc is full.
Impossible An attempt was made to combine tracks while playing
back the first track.
Name Full The titling capacity of the disc has reached its limit (about
1,792 characters).
No Disc There is no disc in the unit.
No Track The inserted disc has a disc title but no tracks.
Protected The inserted disc is record-protected. Ш
Retry The first recording attempt failed due to a disturbance or
scratch on the disc, and a second recording is being made.
Sorry An attempt was made to combine tracks that cannot be
combined.
TOC Reform? | The 10C has become almost full due to repeated editing
operations.
Press the ENTER/YES key to reform the TOC for a
possible increase in recording time. Press the EDIT/NO
key to bypass the reform process and turn off the
| message.
Specifications ..........e..e.eesocercciococeoneren cese e e e ee eee AZ
What is the MiniDISC? .….………esrenseosranseanseanmaanseansescenccensenscnnaceaseucee A-À
TOP
A-2
General
Power requirements
Power consumption
Operating temperature
Storage temperature
Dimensions (w/h/d)
Weight
Laser characteristics
Laser:
Wavelength:
Laser diode properties
AC 120 V. 60 Hz
(For the U.S.A. and Canada)
AC 230 V to 240 V, 50/60 Hz
(For Europe)
25 W
5°C to 40°C (41°F to 104°F)
—20°C to +55°C (-4°F to 131°F), without
moisture condensation
About 142 x 132 x 375 mm
(55 x 5'/4x 147% inches)
About 5 kg (11 Ib)
Semiconductor laser
780 - 790nm
Material: GaAlAs
Emission duration: continuous
Laser output: less than 44.6 u W
(This output is the value measured
at a distance of 200 mm from the
lens surface on the optical pick-up
block.)
Digital audio signal format
System
Disc
Modulation format
Digital audio channel
Sampling frequency
Error correction
Rotation mode
MiniDisc digital audio system
MiniDisc
EFM (Eight-to-Fourteen Modulation)
2 channels
44.1 kHz
ACIRC (Advanced Cross Interleave Reed
Solomon Code)
CLV (about 400 to 900 r.p.m.)
Input/output connectors
Appendix
Analog input
Connector
Reference level
Adjustable range
Maximum level
Input impedance
XLR-3-31
+4 dB (factory set)
—12 dB to +8 dBs
+24 dB
Approx. 10 kilohms, balanced
Analog output
Connector XLR-3-32
Reference level +4 dB (load impedance 10 kilohims)
(factory setting)
Adjustable range —12 dB to +8 dBs (loud impedance
10 kitohm) (factory setting)
Maximum level +24 dB (load impedance 10) kilohms)
(factory setting)
Output impedance Approx. 250 ohms, balanced
Load impedance More than 600 ohms
REMOTE (25P)
Connector D-SUB 25-pins (female)
Format Parallel
Input level L: ground short (less than 100 oluns)
H: open collector (high impedance)
Output level L: less than 0.8 V (Imax.: 25 mA)
H: open collector (Vmax.: 12 V)
+5 V output Imax. 50 mA
Audio characteristics
Frequency response 20 Hz to 20 kHz, £0.5 dB
Signal-to-noise ratio More than 83 dB (with A-weight filter,
when playing back recordable disc)
More than 95 dB (with A-weight filter,
when playing back premastered disc)
Total harmonic distortion Less than 0.095% (at reference level”,
| kHz, when playing back recordable disc)
Less than 0.06% (at reference level",
| kHz, when playing back premastered
Appendix THRE
disc)
Wow and flatter Below measurable limit (200.001 9%,
W. Peak)
Supplied accessories
Wired remote controller RM-C 1 (1)
Connecting cable (1)
Sony SUM-3 (NS) batteries (3)
AC power cord (1)
Operation manual (1)
US and foreign patents licensed from Dolby Laboratories Licensing Corporation.
Design and specifications are subject to change without notice.
" The reference level is the level at —20 dB from the full
bit on the peak level meter scale.
Appendix | A- 3
HI]
Appendix ||
What is the MiniDisc?
MiniDiscs (MD) come in two types: premastered (prerecorded) and
recordable (blank). Premastered MDs, recorded at music studios, can
be played back almost endlessly. However, they can’t be recorded on
or over like cassette tapes. To record, you use a “recordable MD”.
Premastered MDs
Premastered MDs are recorded and played like regular CDs. À laser
beam focuses on the pits in the surface of the MD and reflects the data
back to the lens in the recorder. The recorder then decodes the signals
and plays them back as music.
Recordable MDs
A-4 | Appendix
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. (See
illustration below.) 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 demagnetized MD adopts the
polarity of the magnetic field, resulting in a recorded MD.
Head Drive Signal
ura aaa
|
Recording Head
SETAITITITITr Magnetic Field
40 Er NS Г НЫ Жо [Фо
Cross-Sectional View of
Recorded Pattern ir
Laser Beam
Move direction New Old
— _
N(s( м (s (n)s(N s(n
Recorded Pattern
Recording Mechanism
The 2.5-inch MiniDisc, encased in a plastic cartridge that looks like a
3.5-inch diskette (see illustration below), uses a new digital audio
compression technology called ATRAC (Adaptive TRanstorm
Acoustic Coding). To store more sound in less space, ATRAC extracts
and encodes only those frequency components actually audible to the
human ear.
Plastic
Cartridge
Disc
Shutter
Like CDs, MDs offer instantaneous random access to the beginning of
any music track. Premastered MDs are recorded with location
addresses corresponding to each music selection. Recordable MDs are
manufactured with a “User TOC? Area” to contain the order of the
music. The TOC system 15 similar to the “directory management
system” of floppy disks. In other words, starting and ending addresses
tor all music tracks recorded on the disc are stored in this area. This
lets you randomly access the beginning of any track as soon as you
enter the track number (AMS), as well as label the location with a
track name as you would a file on a diskette.
Appena,
"TOC 1s the acronym for Table of Contents.
Appendix | A-5
E
1
appenaix III
What is the MiniDisc?
A-6 | Appendix
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 1s possible because of a 1 second lag between the
time audio data is picked up and when it 1s decoded (see illustration
below). Should the optical pickup be jarred out of position, the correct
audio data plays trom the buffer memory. Using a concept called
“sector repositioning,” the optical pickup has the ability to within 13
milliseconds identity 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.
When subjected
to vibration
>
When playing
normally
Baa Ten
Optical
pickup
Optical
pickup
IL] Flow of
00000 data stops
Buffer Buffer
memory memory $$е °
8332
|
Ф
АТВАС Г АТВАС In
decoder TTT decoder TTT
00008 00000
[HHT [HT
Shock-Resistant Memory System
A
AMS (Automatic Music Sensor) 5-8
ANALOG IN connectors 2-5
Analog input/output signal
ANALOG IN/OUT connectors 2-5
Select monaural/stereo mode (MODE
switch) 2-5
Setting the analog input/output reference
level 3-5
ANALOG OUT connectors 2-5
AUTO CUE function 7-4
Auto display function 5-10
AUTO PAUSE function 7-4
С
CAPS (capital letiers) key 2-7
CLEAR key 2-7
Combine function 6-7
Connections 3-3
CUE STDBY (standby) key 2-3, 2-7
D
Display information
Display information during playback 5-9
Display information during recording 4-4
DISPLAY key 2-3, 2-7
Display messages 8-2
Divide function 6-5
E
EDIT key 2-3
Editing functions
Combine function 6-7
Divide function 6-5
Erase function 6-3
Move function 6-9
EDIT/NO key 2-7
EJECT key 2-3
Erid-ol-message (EOM) indication 5-10, 7-3
ENTER key 2-3
ENTER/YES key 2-7
Erase function 6-3
H
Hours meter 7-8
L
LevelSync setting 7-6
Localing
Locating a specific track 5-7
Locating the beginning of a track (AMS) 5-8
M
Menu functions 7-2
MiniDisc (MD)
Handling Min:Discs 3-4
Preventing accidental erasure 4-3
What ts the Minidisc? A-4
MODE switch 2-5
Move function 6-9
N
NAME key 2-7
NEXT/ Dl key 2-3, 2-7
NEXT PLAY display 2-3
P
Playback
Display information during playback 5-9
Playing back 5-5
Program play 5-12
Program repeat playback 5-3
Repeat playback functions 5-3, 5-11
PLAYBACK/RECORD level controls 2-5, 3-5
PLAY/PAUSE key 2-3, 2-7
PREVIOUS/ le key 2-3, 2-7
PROGRAM key 2-7
Index | [-1
index INN
|-2
Index
DA РОН ВН НННОЛННННННННООННННОООНОООНННОНОНННООНОООООННОООАООНЯ
R
REC (recording) key 2-3, 2-7
Recording
Adding disc and track titles 4-5
Display information during recording 4-4
Recording procedure 4-2
REMOTE connector 2-5
Remote controller 2-6
REPEATI/OFF/REPEAT ALL switch 2-3, 5-11
S
Scan forward/backward 5-6
Search 5-6
STOP key 2-3, 2-7
T
Titles
Adding a disc title 4-5
Adding a track title 4-6
Dividing a track title into separate parts 4-7
Index
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