Sharp MD-MT90 User manual

PORTABLE MINIDISC
RECORDER
Thank you for purchasing this SHARP product.
For the best performance, read this manual carefully.
It will guide you in operating your SHARP product.
MODEL
MD-MT90
OPERATION MANUAL

00/12/26 90SEC_02_08.fm
2
Important Introduction
-Accessories-
Accessories
Notes:
zParts and equipment mentioned in this operation man-
ual other than those detailed above are not included.
zThe AC adaptor may be different from the one in the
drawing.
Remote Control x 1
(RRMCW0002AWSA) Headphones x 1 (RPHOH0005AWZZ) AC Adaptor (RADPA3048AWZZ) x 1 Battery Carrying Case x 1 (UBAGC0003AWZZ)
Rechargeable Nickel-
Metal Hydride Battery
(AD-N70BT) x 1
(UBATM0003AWSA)
Connection Cable (for
analog recording) x 1
(QCNWG0029AWZZ)
Connection Cable (for
digital recording) x 1
(QCNWG0422AFZZ)
Carrying Bag x 1
(UBAGC0006AWSA)
Foroptionalaccessories,contact yourlocal dealer, call
the SharpAccessories and Supply Center at 1-800-
642-2122, or visit SHARP’s web site (http://
www.sharp-usa.com). 0101
Optional accessories
z
Rechargeable Nickel-Metal Hydride Battery (AD-N70BT)
zCar adaptor (AD-CA20X)
zCassette adaptor (AD-CT14)

00/12/26 90SEC_02_08.fm
3
Important Introduction
-Contents-
Contents
„Important Introduction
Special Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Names of Controls and Indicators . . . . . . . . . . . . . 6-7
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
„Preparation
Inserting a MiniDisc . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-11
„Basic Operation
Recording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-13
Playback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-15
„Useful Features
Advanced Playback . . . . . . . . . . . . . . . . . . . . . . . 16-17
Advanced Recording . . . . . . . . . . . . . . . . . . . . . . 18-22
Recording from a Microphone. . . . . . . . . . . . . . . 23-25
Checking Displays . . . . . . . . . . . . . . . . . . . . . . . . 26-27
Battery Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-29
Hold Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
„Advanced Features
Changing Default Settings . . . . . . . . . . . . . . . . . . . . 31
Titling a MiniDisc . . . . . . . . . . . . . . . . . . . . . . . . . 32-35
Editing a Recorded MiniDisc . . . . . . . . . . . . . . . 36-38
Listening through Another System . . . . . . . . . . . . . 39
„References
Other Features and Caution . . . . . . . . . . . . . . . . . . . 40
MiniDisc System Limitations . . . . . . . . . . . . . . . . . . 41
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 42-43
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 44-45
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . 46-47
CONSUMER LIMITED WARRANTY . . . . . Back cover

00/12/26 90SEC_02_08.fm
4
Important Introduction
-Special Notes-
Special Notes
zIt is the intent of Sharp that this product be used in full
compliance with the copyright laws of the United
States and that prior permission be obtained from
copyright owners whenever necessary.
Caution - use of controls or adjustments or per-
formance of procedures other than those specified
herein may result in hazardous radiation exposure.
z"BATTERY DISPOSAL"
CONTAINS NICKEL-METAL HYDRIDE BATTERY.
MUST BE DISPOSED OF PROPERLY. CONTACT LO-
CAL AGENCIES FOR INFORMATION ON RECY-
CLING AND DISPOSAL PLANS IN YOUR AREA.
zUS and foreign patents licensed from Dolby Laborato-
ries.
zThe letters in brackets contained in the model number
indicate the color of the product only. Operation and
specifications are unaffected.
FOR YOUR RECORDS
For your assistance in reporting this unit in case of
loss or theft, please record below the model number
and serial number which are located on the bottom of
the unit.
Please retain this information.
Model number
Serial number
Date of purchase
Place of purchase

00/12/26 90SEC_02_08.fm
5
Important Introduction
-Special Notes-
Note:
This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules.
These limits are designed to provide reasonable protec-
tion against harmful interference in a residential installa-
tion.
This equipment generates, uses, and can radiate radio
frequency energy and, if notinstalled and used in accord-
ance with the instructions, may cause harmful interfer-
ence to radio communications.
However, there is no guarantee that interference will not
occur in a particular installation.
If this equipment does cause harmful interference to
radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged
to try to correct the interference by one or more of the fol-
lowing measures:
zReorient or relocate the receiving antenna.
zIncrease the separation between the equipment and
receiver.
zConnect the equipment into an outlet on a circuit dif-
ferent from that to which the receiver is connected.
zConsult the dealer or an experienced radio/TV techni-
cian for help.
WARNING:
FCC Regulations state that any unauthorized changes or
modifications to this equipment not expressly approved
by the manufacturer could void the user's authority to
operate this equipment.

00/12/26 90SEC_02_08.fm
6
Important Introduction
-Names of Controls and Indicators-
Names of Controls and Indicators
„Main unit
1.5V DC Input Jack (10)
2.Optical/Line Input Jack (10, 11)
3.Microphone Input Jack (23)
4.Bass/Delete Button (15, 33)
5.Edit/Auto Mark/Time Mark Button (21, 25, 32)
6.Display/Character Select Button (26, 32)
7.Mode/Charge Button (17, 28)
8.Record/Track Mark Button (12, 21)
9.Volume/Cursor/Fast Forward/Fast Reverse/
Recording Level/Name Select Button
(12, 15, 16, 32, 33)
10.Play/Pause Button (12, 15)
11.Stop/Power Off/Hold Button (13, 15, 30)
12.Enter/Fast Play/Synchro Button (17, 18, 20)
13.Remote Control/Headphones/Line Output Jack
(14, 39)
14.Open Lever (9)
15.Battery Cover (28)

00/12/26 90SEC_02_08.fm
7
Important Introduction
-Names of Controls and Indicators-
„Display panel
1.Level Meter (12)
2.Record Indicator (12)
3.Remaining Recording Time Indicator (26)
4.Monaural Long-Play Mode Indicator (19)
5.Repeat Indicator (17)
6.TOC Indicator (13)
7.Synchro Recording Indicator (18)
8.Disc Mode Indicator
9.Disc Name Indicator (26)
10.Track Name Indicator (26)
11.Total Track Number Indicator (26)
12.Fast Play Indicator (17)
13.Battery Indicator (27)
14.Random Indicator (17)
15.Track Number Indicator (26)
16.Character/Time Information Indicator
„Remote control unit
1.Headphones Jack (14)
2.Bass/Delete/Track Mark Button (15, 21, 33)
3.Volume Down/Cursor Button (15, 33)
4.Volume Up/Cursor Button (15, 33)
5.Hold Switch (30)
6.Play/Pause Button (12, 15)
7.Fast Reverse/Recording Level Down/Name Select
Button (12, 16, 32)
8.Fast Forward/Recording Level Up/Name Select
Button (12, 16, 32)
9.Stop/Power Off Button (13, 15)

00/12/26 90SEC_02_08.fm
8
Important Introduction
-Precautions-
Precautions
„Important
zDo not wear your headphones when you are crossing
streets or near traffic.
zDo not play the unit at a high volume. Hearing experts
advise against extended listening at high volume lev-
els.
zIf you experience ringing in your ears, reduce the vol-
ume or discontinue use.
zThis portable MD should only be used within the range
of 32°F - 104°F (0°C - 40°C).
To avoid accidental electric shock or other possible
problems, observe the precautions listed below.
zDo not disassemble or modify the unit.
zDo not drop or subject the unit to shock.
zDo not use the unit near open flames.
zDo not spill liquid on the unit.
zDo not use an external power supply, other than the
5V DC supplied with this unit, as it may damage it.
zSHARP is not responsible for damage due to improper
use. Refer all servicing to a SHARP authorized serv-
ice center.
„Storing the unit
Avoid using or leaving the unit in the following
places.
zIf the unit is used near radio tuners or TVs, noise and/
or picture interference may result. If you experience
these problems, move the unit away from such
devices.
zIt is not recommendable to put the MiniDisc into a rear
pocket, as this may damage the product when sitting.
zDo not use your headphones while
driving a motor vehicle, it may cre-
ate a traffic hazard and may be ille-
gal. Remember to obey all of the
safety rules in your area.
zPlaces exposed to direct sunlight for
many hours (especially in cars with
the doors and windows closed) or
near heaters. (The cabinet may de-
form, change color or the unit may
malfunction.)
zPlaces exposed to excessive dust.
zPlaces exposed to water.
zPlaces where temperatures are ex-
cessively high or low.
zPlaces (bathrooms) where the humid-
ity is extremely high.
zPlaces with strong magnetic fields
such as TVs or loudspeakers.
zPlaces exposed to vibration.
zPlaces where sand can easily enter
the inside of the unit (beaches etc.).

00/12/26 90SEC_09_11.fm
9
Preparation
-Inserting a MiniDisc-
Inserting a MiniDisc
Notes:
zDo not place the MiniDisc under the holder.
zIf any resistance is felt, do not force the MiniDisc into
the unit, as it may cause damage to the unit. If resist-
ance is felt, remove the MiniDisc and reload it.
zThe lid cannot be opened if "TOC" is displayed.
Refer to the instruction on page 13.
1Slide the OPEN lever to release the com-
partment door.
2Lift it up.
3Insert a MiniDisc as shown.
4Close the compartment door.

00/12/26 90SEC_09_11.fm
10
Preparation
-Connections-
Connections
You can record your favorite CDs or tapes to MD.

00/12/26 90SEC_09_11.fm
11
Preparation
-Connections-

00/12/26 90SEC_12_15.fm
12
Basic Operation
-Recording-
Recording
1Press the REC button.
2Begin playback on the stereo system con-
nected to this portable MD.
3Press the or button to adjust the re-
cording level.
Analog recording
Adjust the recording level so that the maximum
sound volume from the source makes the reading
swing somewhere between 4 dB and 0 dB.
Digital recording
You can adjust the level in 1dB increments within
the range of +12 - 12dB.
Once you adjust the digital recording level, the set-
ting remains even after the recording stops. (For
cancellation instructions, see page 31.)
4Press the PAUSE button on the stereo sys-
tem to enter the playback pause mode.
Here you can search for the track to record.

00/12/26 90SEC_12_15.fm
13
Basic Operation
-Recording-
To interrupt recording
Press the PLAY/PAUSE button.
zTo resume recording, press the PLAY/PAUSE button
again.
zThe track number will be increased by one each time
the recording is interrupted.
To stop recording
Press the /:OFF button.
zWhen recording stops, "TOC" appears. While "TOC"
appears, the MiniDisc recorded contents have not yet
been updated.
zTo prevent the new recording from being lost, it is not
possible to remove the MiniDisc while "TOC" is dis-
played.
To update the recorded contents of the
MiniDisc
Press the /:OFF button while in the stop mode.
The power turns off after recorded contents have been
updated on the MiniDisc.
About the TOC
After any recording or editing function, "TOC" (Table Of
Contents) is displayed. To finalise the recording or editing
function, press the /:OFF button. During this process,
"TOC" will flash and "TOC EDIT!" will be displayed. Dur-
ing any recording or editing function, the MiniDisc unit lid
is locked, and the MiniDisc cannot be removed until the
process is finalised.
Warning:
If the power is removed(Battery/AC adaptor) while "TOC"
is displayed, the MiniDisc unit lid will remain locked until
the battery/main power is restored and the unit is turned
on. Your new recordings or edited changes will be lost
and your MiniDisc may become unusable.
Caution:
While "TOC" or "TOC EDIT!" is displayed, follow the
instructions below.
Otherwise, tracks may not be recorded properly.
Notes:
zChanging the volume level while recording does not
affect the recording.
zYou cannot adjust the bass level while recording.
5Press the PLAY/PAUSE button to start the
MiniDisc unit recording.
6Begin playback on the stereo system, and
the output will be recorded.
- Do not jerk or bump the unit.
- Do not unplug the AC adaptor.
- Do not remove the rechargeable battery or an alka-
line battery.
- Do not subject the unit to shock.

00/12/26 90SEC_12_15.fm
14
Basic Operation
-Playback-
Playback

00/12/26 90SEC_12_15.fm
15
Basic Operation
-Playback-
To interrupt playback
Press the PLAY/PAUSE button.
To resume playback, press the PLAY/PAUSE button
again.
To stop playback
Press the /:OFF button.
If the unit is not operated for at least 2 minutes while in
the stop mode, the power will shut off automatically.
To turn off the power
Press the /:OFF button while in the stop mode.
„Volume control
Press the VOL+ button to increase the volume and the
VOL- button to decrease the volume.
„Bass control
Each time the BASS button is pressed, the tone will be
switched as follows.
Notes:
zIf power failure occurs while playing a disc using the
AC adaptor, disconnect it from the AC outlet. Other-
wise, playback may start automatically when electricity
resumes.
zIf you connect the AC adaptor without installing the
rechargeable battery, playback may start automati-
cally. Be sure to turn off the power.
zReduce the volume before starting to play. MiniDiscs,
compared to ordinary cassette tapes, have very little
noise. If the volume is adjusted according to your
usual expectations of noise, high volume may damage
your hearing.
zThe sound escaping from your headphones may
annoy people around you. In particularly crowded
places (such as on trains or buses), reduce the vol-
ume.
1Insert the headphones plug firmly into the
headphones jack on the remote control
unit.
2Plug the remote control into the REMOTE
jack on the unit.
3Insert a MiniDisc (page 9).
4Press the PLAY/PAUSE button.
Playback starts automatically with a playback only
MiniDisc or a MiniDisc which is protected against
accidental erasure (Auto-play function).
BASS 1 Emphasized slightly
BASS 2 Emphasized more
BASS 3 Emphasized fully
BASS OFF Canceled

00/12/26 90SEC_16_30.fm
16
Useful Features
-Advanced Playback-
Advanced Playback
„To locate the desired portion
„To locate the beginning of a track
For audible fast forward:
Press and hold down the button during playback.
For audible fast reverse:
Press and hold down the button during playback.
zNormal playback will resume when the or
button is released.
zWhen the end of the last track is reached during fast
forward, the unit will enter the pause mode. When
the beginning of the first track is reached during fast
reverse, the unit will enter the playback mode.
To move to the beginning of the next track:
Press the button during playback.
To restart the track being played:
Press the button during playback.
To locate the next track:
Press the button while the unit is stopped.
To locate the previous track:
Press the button while the unit is stopped.
zToskip a numberof tracks at one time,press the
or button repeatedly until the desired track
number is shown.
zWhen you press the PLAY/PAUSE button, playback
starts from the beginning of the track.

00/12/26 90SEC_16_30.fm
17
Useful Features
-Advanced Playback-
„To play at double speed
Press the ENTER/SYNC button while a MiniDisc
recorded in the monaural long-play mode is being played.
zIf a track recorded in the stereo mode is reached dur-
ing fast playback, the fast playback mode will be can-
celed.
zDepending on the contents recorded on a MiniDisc, it
may be difficult to hear them.
To interrupt fast playback
Press the PLAY/PAUSE button during playback.
When the PLAY/PAUSE button is pressed again, the unit
will resume fast playback.
To return to normal playback
Press the ENTER/SYNC button.
„Random play or repeat play
During playback, press the MODE/CHRG button repeat-
edly to select the playback mode.
Notes:
zIf the playback mode is selected while stopped, press
the PLAY/PAUSE button to start playback.
zWhen "TOC" is displayed, random play or repeat play
is impossible.
zIn random play the unit will select and play tracks auto-
matically. (You cannot select the order of the tracks.)
After all of the tracks have been played once each in
random order, the unit will stop automatically.
zDuring random, random repeat, or single track repeat
play, you can forward or reverse the MiniDisc only
within the track being played.
zDuring random play, the unit cannot find the beginning
of any track which has been played.
zRepeat play lasts until you stop the unit.
RANDOM Random play
RANDOM Repeat play of tracks in random order
Repeat play of all of the tracks
1 Repeat play of a single track
No display Normal playback

00/12/26 90SEC_16_30.fm
18
Useful Features
-Advanced Recording-
Advanced Recording
„Playback sound-actuated recording
Recording automatically starts or pauses by detecting
sound from the stereo system (Synchronized recording).
To interrupt recording
zWhen the stereo system is stopped, the unit will enter
the synchro recording pause mode. When playback is
resumed, the recording will be resumed.
zIf a silence lasts for 3 seconds or more, the recording
will be paused (the pause function does not work for
approximately 10 seconds after a recording starts).
When the unit receives sound again, recording auto-
matically starts.
zA new track number is created when the recording
resumes.
1Press the REC button.
2Begin playback on the stereo system con-
nected to this portable MD.
3Press the or button to adjust the re-
cording level. (See page 12.)
4Press the PAUSE button on the stereo sys-
tem to enter the playback pause mode.
Select the starting point for your recording and
press the PAUSE button.
5Press the ENTER/SYNC button.
z"SYNC" will be displayed.
zTo cancel the operation, press the /:OFF but-
ton.
6Begin playback on the stereo system. Re-
cording will begin automatically.

00/12/26 90SEC_16_30.fm
19
Useful Features
-Advanced Recording-
„Long-play recording
When recording in the monaural long-play mode, the
available recording time will be doubled. Monaural long-
play recordings can be replayed at double speed, see
page 17.
Notes:
zWhen the unit is stopped after a recording has been
made in this mode, the recording mode will return to
the stereo mode automatically.
zIf input is from a stereo source, the sounds from the
left and right channels will be combined.
zAlthough the monitor sound you hear in the head-
phones while recording is in stereo, recording will be
monaural.
zMiniDiscs recorded in the monaural long-play mode
may not play on other MiniDisc players.
1Press the MODE/CHRG button while the
recording is paused.
Stereo mode Monaural long-play
mode
2Start recording.

00/12/26 90SEC_16_30.fm
20
Useful Features
-Advanced Recording-
Advanced Recording (continued)
„To start recording from the middle of a
track
You can erase a portion of a track and make a new
recording.
All of the tracks that follow the newly recorded track will
be erased.
Note:
To keep a track after the point you want to make a new
recording, move the track and then make recording after
that point. (See "Editing a Recorded MiniDisc", page 38.)
1During playback, press the PLAY/PAUSE
button at the point where you want to be-
gin recording.
2Press the REC button.
To cancel the operation, press the /:OFF button.
3Press the ENTER/SYNC button.
All of the tracks and track names will be erased, fol-
lowing the point where the playback is paused.
4Press the PLAY/PAUSE button.
Recording will start.