Sharp MD-MT877H PORTABLE MINIDISC RECORDER Operation Manual

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Web-site: www.sharp.co.uk/support    Help Line: 08705 274277 (office hours)
Advanced Features
Ð Listening to a MiniDisc Through a Stereo System or a Car Stereo Ð
Listening to a MiniDisc Through a Stereo System or a Car StereoNotes:lWhen recording with stereo system, eliminate the con-
firmation sound (page 41).
Otherwise, it will also be recorded.lThe recording will be made in the analogue mode.lCharacter information will not be recorded.Listening through a stereo system
Notes:lAdjust the volume of both this portable MD and a car stereo.lDo not operate this portable MD whilst you drive a car.
It may distract your attention and cause a traffic accident.lDo not use any car adaptor except for the separately
available AD-CA55X.lRemove the battery when you power the unit from the
car battery.lDo not leave the unit in the place of high temperature
such as in a car.
If the unit gets hot, the LCD display will be darkened and
hard to read. It will return to normal when the tempera-
ture cools down.Listening through a car stereo
Separately available
cassette adaptor
(AD-CT14)
Separately
availablecar adaptor
(AD-CA55X)
Separately available
plug adaptor
(AD-M66PA)
White:
To the left Red:
To the right
Connection cable To the LINE INPUT sockets 
						

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References
Ð Other Features and Caution Ð
Resuming auto playnWhen you stop playback and replay the MiniDisc
without removing it, playback starts from the point
you stopped it.
nOnce you remove the MiniDisc, playback starts from
the first track.
nThe unit provides the following functions when you
use it with the separately available car adaptor (AD-
CA55X) (when the rechargeable or alkaline battery
is removed):
1.When you turn off the engine, the power of this port-
able MD also turns off. (It may not work with some
types of cars.)
2. When you restart the engine, playback starts from
the beginning of the stopped track.
First track
Stopping
Playing
Stopped track
Stopping
Playing
First trackStopped track
Stopping
Playing
First trackStopped track
Other Features and Caution
l
A rechargeable nickel-metal hydride battery is the only
kind that can be used. Even if the battery is not used,
you should charge it at least once every three months
because of the special quality of this battery.
l
The rechargeable battery can be charged approximately
300 times.
l
When the operating time is reduced to about half the
normal amount of time, even after a full charge is per-
formed, replace the battery with a new one (AD-N55BT).
l
When the battery is charged for the first time or is charged
after not being used for a long period, the operating time
may be shorter than normal. The battery life will recover
with normal use i.e. charging and discharging.
l
To avoid shortening the service life of the battery only
recharge the battery after it has been completely dis-
charged.
l
If the rechargeable battery is used in a cold environment,
the operating time will be reduced.
l
Do not carry the battery in your pocket or a bag together
with metal objects (keys, coins, jewelry, etc.). The bat-
tery may short out and generate significant amounts of
heat.
l
Do not short-circuit the terminals as they will become
very hot and will damage the battery.
l
Do not drop or subject the battery to shock.
l
Do not insert objects (metal etc.) into the battery com-
partment of this product or into the rechargeable battery.Rechargeable battery 
						

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The unit may have the following symptoms whilst recording or editing. The unit is not out of order.MiniDisc System Limitations
References
Ð MiniDisc System Limitations Ð
SYMPTOM
ÒDISC FULLÓ or ÒTOC FULLÓ appears
even though the MiniDisc still has re-
cording time left.
The remaining recording time does not
increase even though you erased tracks.
The total of the recorded time and the
remaining time does not match the maxi-
mum recordable time.
Combine function does not work.
Sound skips in fast reverse/forward.
A track number is created in the middle
of a track.LIMITATIONS
More than 255 tracks (maximum) cannot be recorded regardless of the re-
cording time.
If the MiniDisc is recorded or edited repeatedly or if it has scratches (record-
ing skips scratched parts), you may not be able to record the maximum
tracks above.
The unit does not count non-recorded portions that last 12 or fewer seconds
to display the remaining recording time. The time may not increase even if
you erase short tracks.
One cluster (approximately 2 seconds) is the minimum unit for recording.
For example, a 3-second track uses 2 clusters (approximately 4 seconds).
Therefore, the actual recordable time may be shorter than the displayed
time.
A MiniDisc on which recording and editing are repeated may not allow the
combine function.
One track is divided and recorded in separate places on a repeatedly re-
corded or edited MiniDisc.
Sound may skip.
A track number may be created if there are scratches or dust on the MiniDisc. 
						

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References
Ð Error Messages Ð
Error MessagesERROR MESSAGESBATT EMPTY(LoBATT)BLANK MD(BLANK)CanÕt COPY(CanÕtC)CanÕt EDIT(CanÕtE)CanÕt READ *(CanÕtS)
(CanÕtT)
(CanÕtU)CanÕt REC(CanÕtR)CanÕt STAMP
CanÕt WRITE(CanÕtW)CHARGEmode
DEFECT(DEFECT)DISC FULL
Er-MD **(ErMD*)HOLD(HOLD)LOCKED(CanÕtLOCK)
MEANING
lThe battery is run down.
lNothing is recorded.
lYou tried to record from a copy prohib-
ited MiniDisc.
lA track cannot be edited.
lThe disc data cannot be read because the
disc is damaged.
lRecording cannot be performed correctly
due to vibration or shock.
lStamp function does not work.
lCannot save the TOC information correctly
to a MiniDisc. (A large portion of the disc
has been damaged.)
lThe Charge/Operation switch is not set to
the operation mode when using this unit
with the AC adaptor.
lThe disc is scratched.
lThe disc is out of recording space.
lThe microprocessor has reported a sys-
tem fault and the unit is out of order.
lThe unit is in the hold mode.
lYou removed a MiniDisc whilst recording
or editing.
REMEDY
lCharge the rechargeable battery or replace the alkaline bat-
tery (or use the AC adaptor for power).
lReplace the disc with a recorded disc.
lRecord using the analogue cable.
lChange the stop position of the track and then edit it.
lReload the disc.
lReplace it with another recorded disc.
lRe-record or replace it with another recordable disc.
lCheck the number of tracks.
lReplace the disc with another recordable disc.
lSet the Charge/Operation switch to the operation mode.
lIf the sound you hear is not right, record again.
lReplace the disc with another recordable disc.
lReplace it with another recordable disc.
lTo have it repaired, go to the distributor where you purchased
the unit.
lReturn the HOLD switch to its original position.
lTurn off the power and remove the MiniDisc. 
						

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Web-site: www.sharp.co.uk/support    Help Line: 08705 274277 (office hours)
References
Ð Error Messages Ð
Error Messages : continuedERROR MESSAGESNO DISC
NO SIGNAL(noSIG.)PLAY MD(PLAYmd)POWER ?
PROTECTED
SORRY(Sorry)TEMP OVER(TEMP!)TOC FORM **(Tform**)TOC FULL
Tr. Protect
? DISC(? DISC)
MEANING
lA disc has not been loaded.
lPoor connection of the digital cable.
lNo output signal comes out from the con-
nected unit to playback.
lThe input signal has improper sampling
frequency.
lYou recorded on a playback-only disc.
lThe battery charger is defective.
lThe write protection tab of a MiniDisc is
set to the protected position.lYou tried to record on a playback-only disc.lSince a track number is currently being
located or updated, the unit cannot accept
your command.
lThe temperature is too high.
lThere is an error in the recording signal.
lThere is no space left for recording char-
acter information (track names, disc
names, etc.).
lThe track has been protected from being
erased.
lA disc which contains data other than
music was played.
lThere is an error in the signal recorded
on the disc.
lStamping is not possible.
REMEDY
lLoad a disc.
lConnect the digital cable securely.
l
If the portable CD player has a function to prevent sound skips,
deactivate it.
lPlayback with the connected unit.
l
Replace it with a recordable disc.
lTo have it repaired, go to the distributor where you purchased
the unit.
lMove the write protection tab back to its original position.lReplace it with a recordable MiniDisc.
lWait for a while and try the operation again.
lTurn off the power, and wait for a while.
lErase all of the tracks, and then record again.
lReplace it with another recordable disc.
lEdit the track with the device on which it was recorded.
lA disc which contains non-music data cannot be played.
lReplace it with another recorded disc.
lRetry.
(     ) : Error messages seen on the remote control.
Number or symbol appears in * position. 
						

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Web-site: www.sharp.co.uk/support    Help Line: 08705 274277 (office hours)Troubleshooting
References
Ð Troubleshooting Ð
Many potential ÒproblemsÓ can be resolved by the owner without calling a service technician.
If something seems to be wrong with this product, check the following before calling your authorised SHARP dealer or
service centre.The unit does not
turn on.
No sound is
heard from the
earphones.When the opera-
tion buttons are
pressed, the unit
does not respond.Some sounds
are skipped.
lIs the AC adaptor disconnected?lIs the battery exhausted?lIs the unit in the hold mode?lHas condensation formed inside the
unit?lIs the unit being influenced by me-
chanical shock or by static electric-
ity?lIs the volume set too low?lIs the remote control unit or the ear-
phones plugged in?lAre you trying to play a MiniDisc with
data on it instead of a MiniDisc contain-
ing music?lIs the unit in the hold mode?lIs the battery exhausted?lIs the remote control unit plug or the
earphones plug inserted firmly?lIs the battery exhausted?lIs the unit being subjected to exces-
sive vibration?
lHas the track number or character
information been updated on the
disc yet?lIs the unit in the recording or edit-
ing mode?lIs the MiniDisc protected against
accidental erasure?lIs the unit connected properly to the
other equipment?lIs the AC adaptor unplugged or did a
power failure occur whilst recording or
editing?lIs the unit in the hold mode?lIs an optical signal being output from
the stereo system?
Read the operation manual for the
stereo system.lIs the select switch for charging/
operation set on the charging side?lIs the socket clean?lIs the remote control display set to
ÒLIGHT OFFÓ?
The MiniDisc can-
not be ejected.Recording and
editing are im-
possible.The battery cannot
be charged.Nothing appears
on the remote
control display. PROBLEM CAUSEPROBLEM CAUSE 
						

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References
Ð Maintenance Ð
Troubleshooting : continuedIf trouble occursWhen this product is subjected to strong external in-
terference (mechanical shock, excessive static elec-
tricity, abnormal supply voltage due to lightning, etc.)
or if it is operated incorrectly, it may malfunction.If such a problem occurs, do the following:
1. Unplug the AC adaptor from the wall socket.
2. Remove the battery.
3. Leave the unit completely unpowered for approximately
30 seconds.
4. Plug the AC adaptor back into the wall socket and
reoperate the unit.
Cautions:l
Do not use chemicals for cleaning (petrol, paint thinner,
etc.).
It may damage the cabinet finish.
l
Do not apply oil to the inside of the unit.
It may cause malfunctions.
n CleaningWhen the unit becomes dirty
Clean it with a soft cloth.
When the unit is excessively dirty, use a soft cloth damp-
ened in water (external surfaces only).
Clean the plugs and the connecting socket.
If the plugs or sockets are dirty, noise may be heard.
Cleaning will prevent noise.Maintenance
Moisture condensationWhen the unit has condensation inside, the disc signals
cannot be read, and the unit may not function properly.In the following cases, condensation may form inside the unit.lShortly after turning on a heater.lWhen the unit is placed in a room
where there is excessive steam
or moisture.lWhen the unit is moved from a
cool place to a warm place.
To remove condensation:
Remove the MiniDisc and leave the unit for approximately
1 hour. The condensation should evaporate and the unit
will work properly. 
						

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Web-site: www.sharp.co.uk/support    Help Line: 08705 274277 (office hours)
References
Ð Specifications Ð
Power sourceDC 1.2V: Rechargeable Nickel-Metal Hydride battery (AD-N55BT) x 1
DC 5V: AC adaptor (AC 230 - 240V, 50/60 Hz)
DC 1.5V: Commercially available, ÒAAÓ size (LR6), alkaline battery x 1
DC 1.5V: Separately available car adaptor, AD-CA55X (for cars with a 12-24V DC nega-
tive earth electrical system)
Power consumption7 W (AC adaptor)Output powerRMS; 10 mW (5 mW + 5 mW) (0.2% T.H.D.)Charging timeApprox. 3.5 hours
Battery lifeWhen using the rechargeable battery Continuous recording: Approx. 6.5 hours
(fully charged) included with the unit Continuous play: Approx. 12 hours
When using one, commercially available, high Continuous recording: Approx. 6 hours
capacity, ÒAAÓ size (LR6), alkaline battery (The Continuous play: Approx. 18 hoursrechargeable battery is in the unit, discharged)
When using one, commercially available, high Continuous recording: Approx. 
15.5
 hours
capacity, ÒAAÓ size (LR6), alkaline battery with Continuous play: Approx. 30 hours
the rechargeable battery (fully charged)
lThe above values are the standard values when the unit is operated horizontally and
charged at an ambient temperature of 20°C (68°F). (The operable duration with the
rechargeable battery will be shorter when the unit is carried around.)
lThe volume level is set at ÒVOL 15Ó.
lThe LED is set at ÒLEDoprÓ (see page 31).
lOperable duration with a commercially available battery varies depending on its maker,
type, and conditions of use.
lÒFully chargedÓ means that the charging is complete after approximately 3.5 hours since
the remaining amount of the battery is reduced to Ò 
 Ó (1 bar).
SpecificationsAs a part of our policy of continuous improvement, SHARP reserves the right to make design and specification
changes for product improvement without prior notice.
The performance specification figures indicated are nominal values of production units. There may be some devia-
tions from these values in individual units. 
						

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References
Ð Specifications Ð
Input sensitivityMIC H: reference input level 0.25 mV input impedance 10 k ohms
MIC L: reference input level 2.5 mV input impedance 10 k ohms
LINE: reference input level 100 mV input impedance 20 k ohms
Output levelEarphones
:maximum output level 5 mW + 5 mW load impedance 32 ohms
LINE: specified output 250 mV (-12 dB) load impedance 10 k ohms
DimensionsWidth: 72.0 mm (2-27/32Ó) Height: 19.5 mm (25/32Ó) Depth: 78.9 mm (3-1/8Ó)Weight137 g (0.30 lbs.) with rechargeable batteryInput socketLine/optical digital, microphone (powered by the main unit)Output socketEarphones (impedance: 32 ohms)/remote control unitTypePortable MiniDisc recorderSignal readoutNon-contact, 3-beam semi-conductor laser pick-upAudio channelsStereo 2 channels/monaural (long-play mode) 1 channelFrequency response
20 Ð 20,000 Hz (± 3 dB)
Rotation speedApprox. 400 Ð 1,350 rpmError correctionACIRC (Advanced Cross Interleave Reed-Solomon Code)CodingATRAC (Adaptive Transform Acoustic Coding), 24-bit computed typeRecording methodMagnetic modulation overwrite methodSampling frequency
44.1 kHz (32 kHz and 48 kHz signals are converted to 44.1 kHz, and then recorded.)
Wow and flutterUnmeasurable (less than ±0.001% W. peak)
Specifications 
						

							Subject to the terms listed below, Sharp Electronics (U.K.)
Ltd. (hereinafter called Òthe CompanyÓ) guarantee to pro-
vide for the repair of, or at its option replace this Sharp
Equipment, or any component thereof, (other than bat-
teries), which is faulty or below standard, as a result of
inferior workmanship or materials.
The conditions of this guarantee are:
1. The guarantee shall only apply to defects which occur
within one year from the  date of purchase, provided
that this equipment is sent to the repair address within
this period.
2. This guarantee covers equipment intended for private
domestic use only. This guarantee does not apply to
equipment used in the course of a business, trade or
profession.
3. The guarantee does not cover MiniDiscs or batteries.
A0011.TO TINSE****AWZZ
4. This guarantee does not cover any faults or defects
caused by accident, misuse, fair wear and tear, neglect,
tampering with the equipment, or any attempt at ad-
justment or repair other than by a Service Facility ap-
pointed by Sharp.
5. In the unlikely event of a defect occuring, the product
must be returned to the CompanyÕs repair centre with
proof of purchase. A postage paid label and a fault re-
port form are supplied with the product for this purpose.
It is your responsibility to ensure that the packaging is
adequate, and to obtain proof of posting.
Further details of the repair service, which is available
after the guarantee period on a chargeable basis, and
additional report forms and labels can be obtained by
telephoning 0870 738 0000.
6. No person has any authority to vary the terms or condi-
tions of this guarantee.
7. This guarantee is offered as an additional benefit to
the consumerÕs statutory rights and does not affect
these rights in any way.
TERMS OF GUARANTEE
SHARP ELECTRONICS (U.K.) LTD.
Sharp House, Thorp Road, Newton Heath, Manchester, M40 5BE
SHARP CORPORATION