Sharp IM DR420H User Manual

IM-DR420H(E) TINSE0554AWZZ  
1
1-BIT PORTABLE MINIDISC RECORDER  
MODEL  
IM-DR420H  
OPERATION MANUAL  
Thank you for purchasing this SHARP product.  
For the best performance, read this manual carefully.  
It will guide you in operating your SHARP product.  
If you require any advice or assistance regarding  
your Sharp product, please visit our web-site  
Customers without Internet access may telephone  
08705 274277 during office hours (or (01) 676 0648  
if telephoning from Ireland).  
TINSE0554AWZZ  
03G R YT 1  
E
IM-DR420H(E) (TINSE0554AWZZ)  
IM-DR420H  
1
" At full volume, prolonged listening to a personal stereo  
may damage the user's hearing. This model complies  
with the law if used with the correct earphones (model  
number RPHOH0021AWZZ). If the earphones are  
damaged in any way, please order using the model  
number given above.  
! Notes  
" Recording and playback of any material may require  
consent, which SHARP is unable to give. Please refer  
particularly to the provisions of the Copyright Act  
1956, the Dramatic and Musical Performers Protection  
Act 1958, the Performers Protection Acts 1963 and  
1972 and to any subsequent statutory enactments  
and orders.  
" This equipment complies with the requirements of  
Directives 89/336/EEC and 73/23/EEC as amended  
by 93/68/EEC.  
" This product is classified as a CLASS 1 LASER  
PRODUCT.  
" Use the Portable MiniDisc Recorder only in accord-  
ance with the instructions given in this manual and do  
not attempt to interfere with the interlock switch or  
make any other adjustment as this may result in expo-  
sure to hazardous radiation.  
" US and foreign patents licensed from Dolby Laborato-  
ries.  
" The letters in brackets contained in the model number  
indicate the colour of the product only. Operation and  
specifications are unaffected.  
Laser Diode Properties  
" Material: GaAIAs  
" Wavelength: 785 nm  
" Pulse time:  
Read mode: 0.8 mW Continuous  
Write mode: max 12 mW 0.5S  
min cycle 1.5S  
Repetition  
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Features  
! A Portable MD player with "Mobile 1-bit  
digital amplifier"  
! A Net MD portable recorder  
Audio data saved on the hard disk of a PC can be trans-  
ferred to a Net MD-compatible recorder using the pro-  
vided software "BeatJam".  
" The 1-bit digital signal is sent to a constant voltage cir-  
cuit directly from a high-order  
modulation circuit.  
The amplifier transmits and amplifies the signal, and  
allows extremely natural and clear sound with little  
deterioration.  
" High-quality sound is achieved by vast improvements  
in the sound resolution. The speed and the smooth-  
ness of rise of the sound are consequently ensured.  
! This product features up to 50 times  
high speed transfer from PC to MD in  
LP4 mode  
" Transfer speed varies by the recording mode. In SP  
mode, the speed is less than 1/4 of that in LP4 mode.  
" Time for initialisation and the termination process is  
omitted from the calculation of transfer speed.  
" To achieve maximum speed, use the AC adaptor and  
a high capacity battery together.  
! "4-pole plug earphone" optimizes  
"Mobile 1-bit digital amplifier"  
" Sharp has adopted "4-pole plug" earphone that com-  
pletely separate right and left sound. Enjoy the high  
quality sound of the "Mobile 1-bit digital amplifier".  
" Transfer speed depends on the performance of your  
PC or the number of tracks to record.  
L+ R+ L- R-  
4-pole plug for mobile  
1-bit digital amplifier  
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Contents  
1
Page  
Page  
! Important Introduction  
! Net MD  
Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6  
Names of Controls and Indicators . . . . . . . . . . . . 7 - 8  
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9  
About Net MD . . . . . . . . . . . . . . . . . . . . . . . . . . 44 - 45  
System Requirements . . . . . . . . . . . . . . . . . . . . . . . . 46  
Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . 47  
Connecting to a PC . . . . . . . . . . . . . . . . . . . . . . 48 - 49  
Transferring Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 50  
! Power Source  
Using with the Rechargeable Battery . . . . . . . . 10 - 11  
Using with the AC Adaptor . . . . . . . . . . . . . . . . . . . .12  
Using with the Alkaline Battery. . . . . . . . . . . . . . . . .12  
! References  
MiniDisc System Limitations . . . . . . . . . . . . . . . . . . 51  
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . 52 - 53  
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . 54 - 55  
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55  
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . 56 - 57  
! Preparation  
Inserting a MiniDisc . . . . . . . . . . . . . . . . . . . . . . . . . .13  
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 15  
Hold Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16  
Before Recording . . . . . . . . . . . . . . . . . . . . . . . . . . . .17  
The operation manual of this product consists  
of 2 volumes.  
! Basic Operation  
Recording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 - 19  
Playback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 - 21  
Unit operation manual:  
Guides you through preparation and operation of this  
system. Be sure to read this before operating the unit.  
! Useful Features  
Advanced Playback . . . . . . . . . . . . . . . . . . . . . . 22 - 23  
Advanced Recording . . . . . . . . . . . . . . . . . . . . . 24 - 28  
Recording from a Microphone. . . . . . . . . . . . . . 29 - 32  
Changing Default Settings. . . . . . . . . . . . . . . . . . . . .33  
Checking Displays . . . . . . . . . . . . . . . . . . . . . . . 34 - 35  
BeatJam:  
Guides you through operation of the bundled software  
"BeatJam".  
! Advanced Features  
Titling a MiniDisc . . . . . . . . . . . . . . . . . . . . . . . . 36 - 39  
Editing a Recorded MiniDisc . . . . . . . . . . . . . . . 40 - 42  
Listening through Another System. . . . . . . . . . . . . .43  
Resuming auto play . . . . . . . . . . . . . . . . . . . . . . . . . .43  
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Accessories  
4-pole  
plug  
Remote Control x 1  
Earphones x 1  
AC Adaptor  
(RADPA8066AWZZ) x 1  
Rechargeable Nickel-  
MetalHydrideBattery  
(AD-N70BT) x 1  
4-pole  
plug  
Battery Carrying Case x 1  
Connection Cable  
(for digital recording) x 1 (for analogue recording) x 1  
Connection Cable  
Output Conversion Cable  
(4-pole to 3-pole plug  
conversion) x 1  
Carrying Bag x 1  
Notes:  
CD-ROM x 1  
USB Connection Cable x 1  
" You can hear the sound only from one earphone if you use the supplied earphones with other equipment.  
" Parts and equipment mentioned in this operation manual other than those detailed above are not included.  
" The AC adaptor may be different from the one in the drawing.  
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Names of Controls and Indicators  
1
! Main unit  
Reference page  
1. Open Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  
2. Battery Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
3. Menu/Enter Button . . . . . . . . . . . . . . . . . 19, 21, 36  
4. Play/Pause/Stop/Power Off/Hold/  
Fast Forward/Fast Reverse/  
Recording Level/Menu Select/  
Name Select Button . . . . . . . . . . 16, 18, 20, 22, 36  
5. Volume/Cursor Button . . . . . . . . . . . . . . . . . 21, 37  
6. Remote Control/Earphones/  
Line Output Socket . . . . . . . . . . . . . . . . . . . . 20, 43  
7. USB Socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48  
8. Microphone Input Socket . . . . . . . . . . . . . . . . . . 29  
9. Optical/Line Input Socket . . . . . . . . . . . . . . . . . . 14  
10. Record/Track Mark Button . . . . . . . . . . . 18, 26, 27  
11. Bass/Delete/Synchro/  
1
5
2
3
4
Charge Button . . . . . . . . . . . . . . . . . . 10, 21, 26, 37  
12. 3 V DC Input Socket . . . . . . . . . . . . . . . . . . . . . . 10  
Note:  
When the battery cover comes off, attach the cover back  
as shown below.  
1
6
10  
2
7
11  
8
9
12  
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Names of Controls and Indicators (continued)  
! Display panel  
Reference page  
1. Level Meter . . . . . . . . . . . . . . . . . . . . . . . . . . 18, 30  
2. Random Indicator . . . . . . . . . . . . . . . . . . . . . . . . 23  
3. Repeat Indicator . . . . . . . . . . . . . . . . . . . . . . . . . 23  
4. Long-Play/Recording Mode Indicator . . . . . . . . 24  
5. Monaural Mode Indicator . . . . . . . . . . . . . . . . . . 24  
6. Battery Indicator . . . . . . . . . . . . . . . . . . . . . . . . . 35  
7. Play Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
8. Pause Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . 18  
9. Disc Name Indicator . . . . . . . . . . . . . . . . . . . . . . 34  
10. Record Indicator . . . . . . . . . . . . . . . . . . . . . . 18, 30  
11. Synchro Recording Indicator . . . . . . . . . . . . . . 26  
12. Character/Time Information Indicator . . . . 18, 34  
13. TOC Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . 17  
14. Track Number Indicator . . . . . . . . . . . . . . . . . . . 18  
1 2 3  
4 5  
6
7
14  
8
9 10 11 12  
13  
2
3
4
7
! Remote control unit  
Reference page  
1. Earphones Socket . . . . . . . . . . . . . . . . . . . . . . . 20  
2. Bass/Delete/Track Mark Button . . . . . . . 21, 27, 37  
3. Volume/Cursor Buttons . . . . . . . . . . . . . . . . 21, 37  
4. Hold Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16  
5. Play/Pause Button . . . . . . . . . . . . . . . . . . . . 19, 20  
6. Fast Forward/Fast Reverse/  
Recording Level/Menu Select/  
Name Select Buttons . . . . . . . . . . . . . . . 18, 22, 36  
7. Stop/Power Off Button . . . . . . . . . . . . . . . . . 19, 20  
1
5
6
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Precautions  
1
! Important  
! Storing the unit  
" Do not wear your earphones when you are crossing  
streets or near traffic.  
" Do not use your earphones whilst driv-  
ing a motor vehicle, it may create a traf-  
fic hazard and may be illegal.  
Remember to obey all of the safety  
rules in your area.  
" Do not play the unit at a high volume.  
Hearing experts advise against extend-  
ed listening at high volume levels.  
" If you experience ringing in your ears, reduce the vol-  
ume or discontinue use.  
" No naked flame sources, such as lighted candles,  
should be placed on the apparatus.  
" Attention should be drawn to the environmental as-  
pects of battery disposal.  
Avoid using or leaving the unit in the following  
places.  
" Places exposed to direct sunlight for many hours  
(especially in cars with the doors and windows closed)  
or near heaters. (The cabinet may deform, change col-  
our or the unit may malfunction.)  
" Places exposed to excessive dust.  
" Places exposed to water.  
" Places where temperatures are excessively high or  
low.  
" Places (bathrooms) where the humidity is extremely  
high.  
" Places with strong magnetic fields such as TVs or  
loudspeakers.  
" Places exposed to vibration.  
" Places where sand can easily enter the inside of the  
unit (beaches etc.).  
" The apparatus is designed for use in moderate climate.  
" This portable MD should only be used within the range  
of 0°C - 40°C (32°F - 104°F).  
" If 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.  
To avoid accidental electric shock or other possible  
problems, observe the precautions listed below.  
" Do not disassemble or modify the unit.  
" Do not drop or subject the unit to shock.  
" Do not use the unit near open flames.  
" Do not spill liquid on the unit.  
" Do not use an external power supply, other than the 3  
V DC supplied with this unit, as it may damage the  
unit.  
It is not recommended to put the  
portable MD into a rear pocket, as  
this may damage the product when  
sitting.  
Using this unit near mobile phones  
may cause noise pickup. If it oc-  
curs, move it away from them.  
" SHARP is not responsible for damage due to improper  
use. Refer all servicing to a SHARP authorised serv-  
ice centre.  
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Using with the Rechargeable Battery  
! Charging the rechargeable battery  
When the rechargeable battery is used for the first time  
or when you want to use it after a long period of disuse,  
be sure to charge it fully.  
1 Insert the rechargeable battery according  
to the direction indicated in the battery  
compartment.  
AC 110 - 240V,  
50/60 Hz  
A rechargeable battery other than the one supplied  
or the optional one AD-N70BT cannot be charged.  
2 Plug the AC adaptor into the wall socket,  
and then insert the plug on the other end  
into the DC IN 3V socket.  
To the DC IN 3V socket  
3 Press the CHARGE button.  
1
3
2
4
The battery indicator will scroll, and battery will begin  
charging.  
Scrolling  
" After the rechargeable battery is charged or used, it  
will get slightly warm. This is normal.  
" When the portable MD is turned on or operating, the  
battery will not be charged.  
" For information about the battery life, see the battery  
item in the "Specifications" on page 57.  
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! About charging time  
! Rechargeable battery  
After about 3.4 hours have passed, " " will  
go out. The battery is charged up to 90% if it is  
completely discharged.  
" 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.  
" The rechargeable battery can be charged approxi-  
mately 300 times.  
2
To charge the battery fully, continue charging for about 2  
more hours. In this case, you do not need to press the  
CHARGE button. Even if the CHARGE button is pressed,  
" 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-  
N70BT).  
" 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 bat-  
tery life will recover with normal use i.e. charging and  
discharging.  
"
" will not appear.  
Notes:  
" Charge the battery within the range of 5°C - 35°C  
(41°F - 95°F).  
" The unit can be left in the charging state after it is  
completed.  
" Carry the battery in the supplied case.  
" To avoid shortening the service life of the battery only  
recharge the battery after it has been completely dis-  
charged.  
" If the rechargeable battery is used in a cold environ-  
ment, the operating time will be reduced.  
" Do not carry the battery in your pocket or a bag  
together with metal objects (keys, coins, jewelry, etc.).  
The battery may short out and generate significant  
amounts of heat.  
" Do not short-circuit the terminals as they will become  
very hot and will damage the battery.  
Caution:  
" Use the specified battery AD-N70BT only. Do not  
charge a battery (nickel-cadmium, alkaline, etc.) other  
than that specified.  
" Do not remove the outer cover of the re-  
chargeable battery. It may cause heat gen-  
eration, fire, or explosion.  
" Do not dip the battery in water, do not dis-  
pose of it in a fire, and do not take it apart.  
" Do not drop or subject the battery to shock.  
" Do not insert objects (metal etc.) into the battery com-  
partment of this product.  
" If the rechargeable battery terminal is dirty, charging  
may not start. In such a case, wipe off the dirt with a dry  
cloth.  
" Do not disassemble the battery.  
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Using with the AC Adaptor Using with the Alkaline Battery  
Plug the AC adaptor into the wall socket, and then insert  
the plug on the other end into the DC IN 3V socket.  
Use one commercially available alkaline battery (LR6,  
"AA" size).  
To the wall socket  
1
2
3
AC 110 - 240V,  
50/60 Hz  
1 Push and slide the battery cover.  
2 Open the battery cover.  
3 Insert an alkaline battery according to the  
direction indicated in the battery compart-  
ment.  
To the DC IN 3V socket  
When inserting or removing the battery, push it to-  
wards the battery terminal.  
Caution:  
" Insert the plugs firmly.  
" When the unit is not in use for extended periods,  
remove the AC adaptor from the wall socket.  
4 Close the battery cover.  
Notes:  
Notes:  
" Do not replace the battery during operation.  
" Do not use a nickel-cadmium battery.  
" Remove the battery if the unit will not be used for long  
periods of time. This will prevent potential damage due  
to battery leakage.  
" Installing the battery incorrectly may cause the unit to  
malfunction.  
" If power failure occurs whilst playing a disc using the  
AC adaptor, disconnect it from the wall socket. Other-  
wise, playback may start automatically when electricity  
resumes.  
" This unit can be used with the AC adaptor when the  
rechargeable or an alkaline battery is in the unit.  
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Inserting a MiniDisc  
Notes:  
1 Slide the OPEN lever to release the com-  
" Do not place the MiniDisc under the holder.  
partment door.  
2 Lift up the compartment door.  
3
3 Insert a MiniDisc.  
Insert according to the direction arrow.  
4 Close the compartment door.  
" If 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.  
" The lid cannot be opened if "TOC" is displayed; refer  
to the instruction on page 17.  
1
3
2
4
" When you record on a MiniDisc, check that the erase  
prevention tab is set to the "Recordable" position.  
Recordable Recording  
prevented  
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Connections  
You can record your favourite CDs or tapes to MD.  
When recording, it is recommended to use the AC adaptor and also install the battery. Should the power failure occur,  
the power source would be automatically switched to the battery.  
To connect to a stereo system with "LINE OUT" or "AUDIO OUT" sockets (analogue connection)  
If the audio system has only one pair of sockets, they are usually for input only and recording via this connection is  
not possible.  
RIGHT  
Supplied  
LEFT  
connection  
cable  
RIGHT  
LEFT  
To the wall socket  
Red : to right  
White : to left  
AC 110 - 240V,  
50/60 Hz  
To the DC IN  
To the OPTICAL/  
LINE IN socket  
3V socket  
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IM-DR420H  
To connect to a stereo system with a "DIGITAL OUT" or "OPTICAL OUT" socket (digital con-  
nection)  
When compared with an analogue connection recording, using a digital connection will give higher quality.  
Some audio systems do not have a DIGITAL OUT socket.  
3
Check before connecting.  
To the wall socket  
AC 110 - 240V,  
50/60 Hz  
DIGIT  
AL OUT  
Supplied  
connection  
cable  
To the DC IN  
3V socket  
DIGIT  
AL OUT  
To the OPTICAL/  
LINE IN socket  
Optional  
connection cable (AD-M2DC)  
Note:  
Some of the above optional accessories may not be available depending on the area.  
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Hold Function  
The operation can be kept even if other buttons are accidentally pressed in a place such as a crowded train. (The main  
unit and remote control operate independently.)  
Move the HOLD switch to the safety position  
(direction indicated by the arrow).  
Orange mark  
Hold  
Release  
Hold down the HOLD button for 2 seconds or more.  
Hold  
Release  
To cancel the hold mode  
Move the HOLD switch away from the safety position (the  
opposite direction of the arrow).  
If the battery is inserted or the AC adaptor is connected,  
you can set this function even when the power is turned  
off.  
If the hold function is active whilst the power is turned  
off, the power cannot be turned on by mistake and the  
battery will not be drained.  
To cancel the hold mode  
Press and hold down the HOLD button for 2 seconds or  
more whilst the unit is in the hold mode.  
"HOLD OFF" will be shown.  
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Before Recording  
! About the TOC  
! To prevent recorded MiniDiscs from  
Whilst recording or editing, "TOC" (Table Of Contents)  
appears. If you stop recording or turn off the power after  
editing, TOC will be written on the MD ("TOC" will flash  
followed by "TOC EDIT!"). During the process, the lid is  
locked and you cannot remove the MiniDisc.  
being erased accidentally  
Slide the accidental erase prevention tab, located on the  
side of the MiniDisc, in the direction indicated by the  
arrow.  
The MiniDisc will then be protected against accidental  
erasure.  
3
TOC display  
Recording  
Recordable  
Warning:  
prevented  
If the power is removed (Battery/AC adaptor) whilst  
"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.  
To add a recording to such a MiniDisc, slide the acciden-  
tal erase prevention tab back to its original position.  
! Helpful tip when attaching a label  
When attaching a label to a MiniDisc cartridge, be sure to  
note the following. If the label is not attached properly, the  
MiniDisc may jam inside the unit and you may not be able  
to remove it.  
Caution:  
Whilst "TOC" or "TOC EDIT!" is displayed, follow the  
instructions below.  
" If the label peels off or partially lifts  
away, replace it with a new one.  
" Do not put a new label on top of an ex-  
isting one.  
" Attach the label only in the specified  
location.  
-
-
-
-
Do not jerk or bump the unit.  
Do not unplug the AC adaptor.  
Do not remove the battery.  
Do not subject the unit to shock.  
Otherwise, tracks may not be recorded properly.  
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Recording  
3 Press the REC LEVEL  
or  
button to  
adjust the recording level.  
Analogue recording (connecting with analogue  
cable)  
Adjust the recording level so  
that the maximum sound vol-  
ume from the source makes the  
reading swing somewhere be-  
tween -4 dB and 0 dB.  
0 - 30  
Digital recording (connecting with digital cable)  
You can adjust the level in 1 dB  
increments between + 10 dB  
and - 10 dB.  
+ 10 dB to - 10 dB  
Before recording  
Once you adjust the recording level, the setting is re-  
tained even after the recording stops. (For cancella-  
tion instructions for the digital recording level, see  
page 33.)  
Cancel the hold mode.  
The portable MD does not work whilst in the hold mode.  
As for the details, see page 16.  
1 Press the REC button.  
The sound from the earphones does not change  
even if the digital recording level is adjusted.  
2 Begin playback on the stereo system con-  
4 Press the PAUSE button on the stereo sys-  
nected to this portable MD.  
tem to enter the playback pause mode.  
Here, you can search for the track to be recorded.  
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Notes:  
! Complete the operation within 7 seconds whilst select-  
ing the menus.  
! Changing the volume level whilst recording does not  
affect the recording.  
! You cannot adjust the bass level whilst recording.  
! Whilst "TOC" is displayed, the MiniDisc recorded con-  
tents are not yet updated.  
5 Press the MENU/ENTER button.  
6 Press the  
or  
lect "REC MODE".  
button repeatedly to se-  
7 Press the MENU/ENTER button.  
8 Press the  
4
or  
button repeatedly to se-  
TOC display  
lect the recording mode (page 24).  
(Stereo recording)  
SP  
To interrupt recording  
(2 times long recording)  
(4 times long recording)  
(Monaural recording)  
Press the  
button.  
! To resume recording, press the  
! The track number will be increased by one each time  
button again.  
the recording is interrupted.  
9 Press the MENU/ENTER button.  
To stop recording  
Press the :OFF/HOLD button.  
When recording is stopped, TOC is written on the MD.  
The "TOC" indicator disappears.  
The mode will be set automatically after 7 seconds  
even if the MENU/ENTER button is not pressed.  
10Press the  
button to start the MiniDisc  
unit recording.  
11Begin playback on the stereo system, the  
output will be recorded.  
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Playback  
Left  
channel  
Right  
channel  
L
R
4-pole  
plug  
To the REMOTE  
PHONES socket  
/
1 Insert the earphone plug firmly into the ear-  
To interrupt playback  
Press the  
button.  
phone socket on the remote control.  
To resume playback, press the  
button again.  
2 Plug the remote control into the REMOTE/  
To stop playback  
Press the :OFF/HOLD button.  
PHONES socket on the unit.  
The power will turn off automatically after 2 minutes if the  
unit is left in the stop mode.  
3 Insert a MiniDisc (page 13).  
4 Press the  
button.  
To turn off the power  
Press the :OFF/HOLD button whilst in the stop mode.  
Playback starts automatically  
with a playback only MiniDisc  
or a MiniDisc which is protect-  
ed against accidental erasure  
(Auto-play function).  
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" Volume control  
Press the VOL + button to increase  
the volume and the VOL - button to  
decrease the volume.  
1 During playback, press the MENU/ENTER  
button.  
Volume (0 - 30)  
2 Press the  
or  
button repeatedly to se-  
The sound escaping from your earphones may annoy  
people around you. In particularly crowded places (such  
as on trains or buses), reduce the volume.  
lect "SOUND ADJ" and then press the  
MENU/ENTER button.  
4
3 Press the  
or  
but-  
" Bass control  
ton repeatedly to select  
bass setting, and the  
VOL + or VOL - button to  
select "B3".  
Each time the BASS/SYNC (BASS) button is pressed,  
the bass response will be switched as follows.  
B3  
BASS 1  
Emphasised slightly.  
Emphasised more.  
BASS 2  
4 After selecting "Lo" or  
BASS 3  
Emphasised fully.  
"Hi" with the  
or  
button, press the VOL +  
or VOL - button to adjust  
the low or high sound  
setting.  
BASS OFF  
Cancelled. (Default setting)  
" To customise low and high levels  
You can set 3 types of bass settings (BASS 1 - BASS 3)  
by adjusting low (Lo) and high (Hi) boost for each setting.  
5 Press the MENU/ENTER button.  
Emphasising low (Lo) and high (Hi) sound of BASS 3.  
Repeat steps 1 - 5 to change the other bass setting.  
Lo5  
Hi5  
Notes:  
! If you set the volume to 23 or more, the bass boost will  
be adjusted automatically.  
BASS 3  
! When you make the setting of "To customise low and  
high levels" with the volume level set to 23 or more,  
the volume level will be reduced to 22 automatically.  
Default  
Lo  
Hi  
Frequency  
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Advanced Playback  
! To locate the desired portion  
! To locate the beginning of a track  
To move to the beginning of the next track:  
Press the  
To restart the track being played:  
Press the button during playback.  
button during playback.  
To locate the next track:  
Press the  
button whilst the unit is stopped.  
To locate the previous track:  
Press the  
button whilst the unit is stopped.  
For audible fast forward:  
Press and hold down the  
For audible fast reverse:  
Press and hold down the  
button during playback.  
" To skip a number of tracks at one time, press the  
or  
button repeatedly until the desired track number  
is shown.  
button during playback.  
" When you press the  
button, playback starts from  
the beginning of the track.  
" Normal playback will resume when the  
or  
but-  
ton is released.  
" When 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.  
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4
IM-DR420H  
! Random play or repeat play  
4 Press the  
or  
the desired playback mode.  
RANDOM : Random play  
button repeatedly to select  
RANDOM REP : Repeat play of tracks in random order  
ALL REPEAT : Repeat play of all of the tracks  
1Tr REPEAT : Repeat play of a single track  
NORMAL :  
Normal playback  
5 Press the MENU/ENTER button.  
The mode will be set automatically after 7 seconds even  
if the MENU/ENTER button is not pressed.  
5
Notes:  
" Complete the operation within 7 seconds whilst select-  
ing the menus.  
" If the playback mode is selected whilst stopped, press  
the  
button to start playback.  
" When "TOC" is displayed, random play or repeat play  
is impossible.  
" In random play, the unit will select and play tracks  
automatically. (You cannot select the order of the  
tracks.) After all of the tracks are played once in ran-  
dom order, the unit will stop automatically.  
" During random, random repeat, or single track repeat  
play, you can forward or reverse the MiniDisc only  
within the track being played.  
1 During playback, press the MENU/ENTER  
button.  
2 Press the  
or  
but-  
ton repeatedly to select  
"PLAY MODE".  
" During random play, the unit cannot find the beginning  
of any track which has been played.  
3 Press the MENU/ENTER button.  
" Repeat play lasts until you stop the unit.  
" When you stop and resume random play, the rest of  
tracks are played starting from the last played track. If  
you turn the power off and resume random play, all the  
tracks are played in random order starting from the  
interrupted track.  
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Advanced Recording  
! Long-play recording  
2 times and 4 times long recording  
Double or quadruple time of stereo recording is possible.  
4 Press the  
or  
button repeatedly to se-  
lect the desired recording mode.  
Stereo recording (SP)  
2 times long recording (LP2)  
Monaural recording  
In monaural, you can record twice as long as the stereo  
recording.  
Monaural recording (MONO)  
4 times long recording (LP4)  
5 Press the MENU/ENTER button.  
The mode will be set automatically after 7 seconds  
even if the MENU/ENTER button is not pressed.  
6 Start recording.  
Notes:  
" Complete the operation within 7 seconds whilst select-  
ing the menus.  
" The recording mode remains unchanged until a new  
mode is selected.  
1 When recording is paused, press the MENU/  
ENTER button.  
2 Press the  
or  
button repeatedly to se-  
lect "REC MODE".  
3 Press the MENU/ENTER button.  
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Notes:  
! About the recording mode  
" In monaural recording, the sound on the right and left  
channels is mixed even if the input source is in stereo.  
Although you can hear the stereo sound from the ear-  
phones, the recorded sound is monaural.  
" Tracks recorded in 2 times long recording and 4  
times long recording modes cannot be played with  
the unit that does not support these modes. On  
such a unit, no sound is heard. (The operation may  
vary depending on the unit.)  
You can select the recording mode from stereo recording,  
2 times long recording, 4 times long recording, and mon-  
aural recording. Recordable time varies depending on  
the recording mode. If the tracks are recorded on an 80-  
minute MiniDisc, its recording time changes as follows:  
Indication  
Recording mode  
Recording  
time  
5
SP  
Stereo  
MAX. 80 min.  
MAX. 160 min.  
" Tracks recorded in monaural cannot be played on a  
unit that does not support monaural playback.  
LP2  
2 times long (MDLP  
stereo)  
LP4  
4 times long (MDLP  
stereo)  
MAX. 320 min.  
MAX. 160 min.  
! About ATRAC  
The ATRAC (Adaptive TRansform Acoustic Coding) sys-  
tem compresses the sound data into 1/5 by cutting out  
the inaudible sound. Since the sound is selected based  
on psychoacoustics masking, the sound quality is not  
impaired. This unit is equipped with the ATRAC3 com-  
pressing system that can reduce the sound data to 1/10  
or 1/20 of its original size. By employing this system, 2  
times and 4 times long recordings are enabled in stereo  
mode.  
MONO  
Monaural  
! Caution for 4 times long recording  
(LP4)  
Special compression methods are used to achieve 4  
times long recording. This may cause some noise to be  
recorded occasionally. When the highest quality is  
required, stereo or LP2 recording is recommended.  
25  
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Advanced Recording (continued)  
! Playback sound-actuated recording  
Recording automatically starts or pauses by detecting  
sound from the stereo system (synchronised recording).  
7 Press the MENU/ENTER button.  
8 Select the recording mode (step 4, page 24)  
and press the MENU/ENTER button.  
The mode will be set automatically after 7 seconds  
even if the MENU/ENTER button is not pressed.  
9 Press the MENU/ENTER button.  
10Press the  
or  
button repeatedly to se-  
lect "SYNC ON".  
11Press the MENU/ENTER button.  
" The BASS/SYNC button can be used instead of  
steps 9 - 11.  
" "SYNC" will flash.  
" To cancel the operation, press the :OFF/HOLD  
button.  
1 Press the REC button.  
2 Begin playback on the stereo system con- 12Begin playback on the stereo system.  
Recording will begin automatically.  
nected to this portable MD.  
or button to adjust the re-  
3 Press the  
To interrupt recording  
" When the stereo system is stopped, the unit will enter  
the synchro recording pause mode. When playback is  
resumed, recording will also resume.  
cording level (see page 18).  
4 Press 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.  
" If a silence lasts for 3 seconds or more, recording will  
be paused (pause function does not work for approxi-  
mately 10 seconds after recording starts). When the  
unit receives sound again, recording automatically  
starts.  
" A new track number is created when recording  
resumes.  
5 Press the MENU/ENTER button.  
6 Press the  
or  
button repeatedly to se-  
lect "REC MODE".  
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! To create your own track numbers  
! Recording tracks as a single track  
You can create your own track numbers at any point.  
You can record several pieces of music as a single track  
by disabling the auto marker function.  
Whilst recording, press the REC button at the point  
where you want to create track numbers.  
The track number will be increased by one.  
" One track number will be added every time the REC  
button is pressed.  
When recording is paused or whilst recording...  
1 Press the MENU/ENTER button.  
2 Press the  
or  
button repeatedly to se-  
" The BASS button on the remote control can also be  
used to add track numbers.  
lect "MARK".  
5
3 Press the MENU/ENTER button.  
4 Press the  
Numbering restriction  
or  
button to select "MARK  
If you try to number more than 10 tracks in certain  
amount of time, "SORRY" will be displayed and the oper-  
ation will be disabled.  
OFF".  
In that case, wait until the next operation can be  
resumed.  
5 Press the MENU/ENTER button.  
Notes:  
" Complete the operation within 7 seconds whilst select-  
ing the menus.  
" When making digital recordings using a CD player or  
an MiniDisc player, track numbers will be created auto-  
matically regardless of the setting of the auto marker  
function.  
In stereo recording  
Within 40 seconds  
Within 80 seconds  
Within 160 seconds  
Within 80 seconds  
In 2 times long recording  
In 4 times long recording  
In monaural recording  
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Advanced Recording (continued)  
" When recording, if a programmed playback is per-  
formed by the source or playback is performed by  
selecting tracks manually, the MiniDisc track numbers  
may not be the same as on the source.  
" Track numbers may not be created properly, depend-  
ing on the connected stereo system.  
! About track numbers  
1. Track numbers are created automatically during re-  
cording via the analogue connection when a silence of  
1 second or more is detected (auto marker function).  
A series of tracks can be recorded as one by disabling  
the auto marker function (see page 27).  
About  
! About sampling rate converter  
This portable MD incorporates a sampling rate converter  
so that it can record from digital radios or DAT tape  
recorders.  
1 second  
Silence  
First track  
Second track  
! Note for digital recording  
You cannot copy a MiniDisc that you recorded from digital  
inputs to another MiniDisc or DAT. It is prevented by the  
SCMS (Serial Copy Management System). Recording  
from analogue inputs is not affected.  
2. When recording from a CD or a MiniDisc using the dig-  
ital connection, track numbers will be created at the  
same points as on the CD or MiniDisc (synchro mark-  
er function).  
First track Second track Third track  
Playback  
Digital signals  
Digitally recorded Cannot record  
MiniDisc  
side  
Track A  
Track B  
Track C  
CD player,  
MiniDisc  
player,  
etc.  
First track Second track Third track  
Track A  
Track B Track C  
Recording  
side  
Digital  
connection  
Digital  
connection  
" Track numbers may not be created in proper places,  
depending on the source to be recorded from, such as  
signals with noise.  
" The track numbers on the playback side may not  
match the track numbers recorded on the MiniDisc.  
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Recording from a Microphone  
5 Press the  
or  
button repeatedly to se-  
lect "Mic Level".  
6 Press the MENU/ENTER button.  
7 Press the  
or  
button repeatedly to se-  
lect "Auto-Hi", "Auto-Lo" or "MANUAL".  
"
When "Auto-Hi" or "Auto-Lo" is selected, the re-  
cording level is automatically adjusted according to  
changes in sound volume. Normally select "Auto-  
Hi". When the recording level frequently reaches  
"OVER", switch to "Auto-Lo" to lower the level. Set  
the maximum level between "-4 dB" and "0 dB".  
5
" The automatic level adjustment may be delayed  
by a few seconds where source sounds show  
sudden and rapid changes (especially in meet-  
ings and conversations). In this case adjust the  
recording level manually (see page 30).  
To the MIC IN  
PLUG IN  
POWER  
socket  
Stereo  
microphone  
(commercially  
available)  
(
)
8 Press the MENU/ENTER button.  
The mode will be set automatically after 7 seconds  
even if the MENU/ENTER button is not pressed.  
1 Connect a stereo microphone to the MIC IN  
socket.  
9 Select the recording mode (steps 1 - 5,  
2 Insert a recordable MiniDisc (page 13).  
3 Press the REC button.  
page 24).  
10Press the  
button.  
4 Press the MENU/ENTER button.  
Recording will start.  
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Recording from a Microphone (continued)  
To interrupt recording  
! Adjusting the microphone recording  
Press the  
button whilst recording.  
level (Manual)  
To resume recording, press the  
button.  
The track number will be increased by one each time you  
interrupt recording.  
1 Press the REC button.  
2 Press the MENU/ENTER button.  
To stop recording  
Press the :OFF/HOLD button.  
3 Press the  
or  
button repeatedly to se-  
lect "Mic Level".  
Note:  
4 Press the MENU/ENTER button.  
5 Press the  
Complete the operation within 7 seconds whilst selecting  
the menus.  
or  
lect "MANUAL".  
button repeatedly to se-  
6 Press the MENU/ENTER button.  
7 Press the  
or  
button to adjust the re-  
cording level.  
Adjust the recording level so that  
the maximum sound volume from  
the source makes the reading  
swing somewhere between -4 dB  
and 0 dB.  
L: 0 - 20  
H: 21 - 30  
8 Select the recording mode (steps 1 - 5, page  
24).  
9 Press the  
button.  
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About pause function  
! Sound-actuated recording  
The unit automatically pauses when the microphone  
does not pick up any sound for 3 seconds or more.  
(Pause function does not work for approximately 10 sec-  
onds after a recording starts.) When the microphone  
picks up sound again, recording starts automatically.  
(Mic Synchronised recording)  
1 Press the REC button.  
2 Select the mic recording level from auto or  
manual adjustment (steps 4 - 8, page 29).  
3 Select the recording mode (steps 1 - 5, page  
24).  
Notes:  
" Whilst making a mic recording, do not connect any-  
thing to the OPTICAL/LINE IN socket on the portable  
MD.  
" To use a microphone, be sure it is a plug-in-power  
type microphone.  
5
4 Press the MENU/ENTER button.  
5 Press the  
or  
button repeatedly to select  
"SYNC ON".  
- When a plug-in-power type microphone is plugged in,  
the portable MD will provide power for the micro-  
phone's operation.  
6 Press the MENU/ENTER button.  
7 Press the  
or  
ing start level.  
button to select the record-  
- If a different type of microphone is plugged in, it may  
not operate properly or it may cause the unit to mal-  
function.  
MIC SYNC H :Recording starts when the unit detects -  
24 dB or more (the unit can start record-  
ing from quiet sounds).  
MIC SYNC L :Recording starts when the unit detects -  
12 dB or more.  
" Insert the plug firmly. If you don't, the recording will not  
be made properly.  
" Use a microphone with a 3.5 mm (1/8") diameter  
stereo mini plug.  
" If the unit starts recording too often from low unwanted  
noises, set the microphone input to "MIC SYNC L".  
" Recording sensitivity can be changed whilst recording.  
" When using a microphone, do not bring too close  
to the unit. Also do not use a plug-in type (without  
lead). Noise pickup may occur.  
8 Press the MENU/ENTER button.  
9 When a sound, such as person speaking, is  
picked up by the microphone, recording will  
begin automatically.  
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Recording from a Microphone (continued)  
! Track intervals  
5 Press the MENU/ENTER button.  
When recording from the microphone, track numbers will  
be created automatically at regular intervals (default set-  
ting: approximately every 5 minutes). During a mic syn-  
chro recording, the unit pauses when a silence lasts for 3  
seconds or more, and creates a track number.  
The mode will be set automatically after 7 seconds  
even if the MENU/ENTER button is not pressed.  
6 Track numbers will be created automatically  
at regular intervals.  
Example: Set to "5 minutes".  
Changing intervals between tracks  
During a mic manual recording  
1 Press the MENU/ENTER button.  
Timed auto marks will be created every 5 minutes.  
2 Press the  
or  
button repeatedly to se-  
Track  
number 1  
Track  
number 2  
Track  
number 3  
Track  
number 4  
lect "MARK".  
3 Press the MENU/ENTER button.  
4 Press the  
5 minutes  
5 minutes  
5 minutes  
or  
button.  
During a mic synchro recording  
If a silence lasts for 3 seconds or more, a timed auto  
mark will be created 5 minutes after the previous mark is  
created.  
(A new track number is  
created every 3 minutes.)  
(No automatic track numbers  
are created.)  
: Track number which is created by the timed auto mark function.  
: Track number which is created when a silence lasts for 3 seconds  
or more during synchro recording.  
Track  
Track  
Track  
Track  
Track  
(A new track number is  
created every 5 minutes.)  
(A new track number is  
created every 10 minutes.)  
number 1 number 2  
number 3 number 4  
number 5  
The interval between marks may vary slightly com-  
pared with the actual recording time.  
2 minutes  
5 minutes  
1 minute  
5 minutes  
Creating track numbers manually  
" Press the REC button whilst recording.  
" The BASS button on the remote control can also be  
used to add track numbers.  
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Changing Default Settings  
! Beep sound  
Whilst in the stop mode ...  
You can eliminate the confirmation sound that beeps  
when you press a button.  
1 With a MiniDisc inserted, press the MENU/  
ENTER button for 2 seconds or more. "SET  
UP" will appear.  
! Auto play  
When you release the button, "BEEP" will flash.  
You can make the unit not play automatically when you  
insert a playback-only MiniDisc or an accidental erasure  
protected MiniDisc.  
2 Press the  
or  
button to select the menu.  
3 Press the MENU/ENTER button to display  
the setting item.  
or  
! Auto power save  
5
When the unit is used in a place exposed to much vibra-  
tion, sound skipping can be decreased by cancelling the  
auto power save function. (Battery will drain faster.)  
4 Press the  
button to select the set-  
ting items.  
5 Press the MENU/ENTER button.  
What is auto power save function?  
During playback, maximum 40 seconds (in stereo) of  
musical information is stored. Auto power save function  
automatically adjusts the storage time between 5 and 40  
seconds to reduce the power consumption. If this func-  
tion is cancelled, the storage time cannot be adjusted.  
" If this unit is used with the AC adaptor, the storage  
time will be 40 seconds regardless of the settings.  
" The storage time varies depending on the recording  
mode.  
MENU  
SETTING ITEM  
BEEP (Confirmation  
sound)  
BEEP ON*  
BEEP OFF  
Beep  
Silent  
AUTO PLAY (Auto  
play)  
A-PLAY ON* Set.  
A-PLAY OFF Cancelled.  
AUTO Psave* Set.  
POWER SAVE (Auto  
power save)  
! Digital recording level  
"D.L MODE 1"  
The digital recording level you set will be kept even after  
cancelling recording.  
"D.L MODE 2"  
Every time you cancel recording, the level will return to  
[D.L 0dB].  
Psave OFF  
Cancelled.  
D-LEVEL (Digital re-  
cording level)  
D.L MODE 1* Setting re-  
tained.  
D.L MODE 2 Cancelled.  
(*) indicates default setting.  
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Checking Displays  
! To check the elapsed time and remain-  
! To check the remaining recording time  
ing time of the track  
and the total playing time  
1 During playback, press the MENU/ENTER  
1 Whilst in the stop mode, press the MENU/  
button.  
ENTER button.  
2 Press the  
or  
button repeatedly to se-  
2 Press the  
or  
button repeatedly to se-  
lect "DISPLAY".  
lect "DISPLAY".  
3 Press the MENU/ENTER button.  
3 Press the MENU/ENTER button.  
4 Press the  
or  
or  
button.  
button  
4 Press the  
or  
or  
button.  
button  
Each time the  
Each time the  
is pressed, the display will  
change as follows.  
is pressed, the display will  
change as follows.  
Disc name  
Remaining recording time  
Total playing time  
A
B
C
A
B
C
Track name  
Elapsed playback time  
Remaining playback time  
Notes:  
Notes:  
" If the disc name or the track name was not originally  
recorded on the MiniDisc, "NO NAME" will be dis-  
played.  
" Elapsed playback time and remaining playback time  
may be different from the actual time.  
" The selected display will not change even after the  
disc is replaced.  
" Remaining recording time varies depending on the set  
recording mode.  
" Remaining recording time will not be displayed with a  
playback only MiniDisc.  
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! To display the playing time of an indi-  
! Checking the remaining amount of bat-  
tery level  
vidual track  
The remaining amount of battery level is shown by the  
battery indicator (  
) during operation.  
1 Whilst in the stop mode, press the  
or  
button to display the track number and track  
name.  
How to read the battery indicator  
When the battery  
level is high  
When the battery  
level is very low  
Track number  
Track name  
5
" When the battery level is very low, the battery indicator  
will flash. Recharge the battery or replace the alkaline  
battery with a new one.  
" When the battery has run out completely, "BATT  
EMPTY" will appear. Then, the power will be discon-  
nected automatically.  
2 Press the MENU/ENTER button.  
3 Press the  
or  
button repeatedly to se-  
lect "DISPLAY".  
4 Press the MENU/ENTER button.  
5 Press the  
or  
button to select the play-  
Notes:  
" If you use the battery which you stopped charging  
ing time.  
halfway, "  
" may appear. It does not mean that the  
battery is completely charged.  
Playing time  
" The battery indicator will not correctly display the  
remaining capacity for approximately 10 seconds after  
the power has been turned on.  
" When the AC adaptor is used, the battery indicator will  
not be shown.  
" The number of bars shown in the battery indicator may  
increase or decrease, depending on the operation  
being performed. This is normal.  
6 Press the MENU/ENTER button.  
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Titling a MiniDisc  
! Creating disc and track names  
Load a MiniDisc to be named. A playback only or record-  
ing prevented MiniDisc cannot be edited.  
6 Press the  
button repeatedly to select the  
type of characters.  
<Disc name>  
<Track name>  
1
Whilst in the stop  
Whilst in the pause  
mode, press the MENU/ mode, press the MENU/  
(Capital letters) (Lower-case letters) (Numbers and symbols)  
ENTER button.  
ENTER button.  
The first 3 characters in the group of the selected  
characters will be displayed for about 1 second.  
2 Press the  
or  
button repeatedly to se-  
lect "EDIT".  
7 Press the  
or  
button repeatedly to se-  
3 Press the MENU/ENTER button.  
lect the letter.  
<Disc name>  
Press the or  
<Track name>  
but- Press the or  
4
but-  
ton repeatedly to select  
"DISC NAME".  
ton repeatedly to select  
"TRACK NAME".  
8 Press the MENU/ENTER button to enter it.  
5 Press the MENU/ENTER button.  
Position where the next letter will be entered  
Note:  
Cursor  
Complete the operation within 7 seconds whilst selecting  
the menus.  
" The unit will enter the character input mode.  
" To cancel the operation, press the :OFF/HOLD  
button.  
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! To erase a character  
Press the VOL + or VOL - button to move the cursor to  
the character you want to erase, and then press the  
BASS/SYNC button.  
You can also erase a character by selecting "DL" and  
pressing the MENU/ENTER button.  
9 To enter more letters, repeat steps 6 - 8.  
10When the name is completely entered,  
press and hold down the MENU/ENTER but-  
ton for 2 seconds or more.  
" "TOC" will be displayed. To write the updated con-  
tents to the MiniDisc, press the :OFF/HOLD but-  
ton.  
" You cannot remove the MiniDisc whilst "TOC" is  
displayed. "TOC" will not disappear until the re-  
corded contents have been updated.  
! To enter a space  
Press the VOL + button to move the cursor to the right.  
6
! Characters (symbols)  
Capital letters  
Space  
D
A
B
C
D
E
X
F
Y
G
Z
H
.
I
i
J
/
K
k
L
l
M
m
N
n
O
o
P
p
Q
q
'
R
r
L
Notes:  
,
,
S
T
U
V
W
" One disc name and up to 255 track names can be cre-  
ated per disc (a maximum of 40 characters for the disc  
and each track name and a total of about 1,700 char-  
acters can be entered).  
" If you enter "LP:" at the beginning of a name, "LP:"  
may not be displayed.  
Lower-case letters  
D
a
b
c
d
e
f
g
z
h
.
j
L
s
t
u
v
w
x
y
/
Numbers and symbols  
D
(
1
2
3
4
5
6
7
8
;
9
<
0
=
!
"
#
$
_
%
`
&
L
)
+
:
>
,
.
/
?
@
*
D
L
(Delete) : erases a character.  
(Space) : indicates a space.  
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Titling a MiniDisc (continued)  
! To add characters  
! Stamping titles from another MiniDisc  
1 Put the unit in the character input mode.  
Before stamping  
(Perform steps 1 - 5 on page 36.)  
When there are 2 MiniDiscs on which the same tracks  
are recorded, you can transfer the character information  
(disc and track names) of the master MiniDisc to another  
MiniDisc (for stamping).  
2 Press the VOL + or VOL - button to move the  
cursor to the character before which you  
want to add a new character.  
1. What is a master MiniDisc?  
A recordable MiniDisc that contains tracks and charac-  
ter information. (You cannot transfer the information  
from a playback-only MiniDisc.)  
3 Select the character to add.  
(Perform steps 6 - 8 on page 36.)  
4 Press and hold down the MENU/ENTER but-  
ton for 2 seconds or more.  
" "TOC" will be displayed. To write the updated con-  
tents to the MiniDisc, press the :OFF/HOLD but-  
ton.  
2. What is a MiniDisc for stamping?  
A MiniDisc that contains the same tracks in the same or-  
der as the master MiniDisc. (Make sure that the total  
number of tracks of the master MiniDisc and the one for  
stamping are the same.)  
" You cannot remove the MiniDisc whilst "TOC" is  
displayed. "TOC" will not disappear until the re-  
corded contents have been updated.  
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Master MiniDisc operation  
Operation of the MiniDisc for stamping  
1 Insert a master MiniDisc.  
9 Load a MiniDisc for stamping.  
Do not mistake the master MiniDisc for the target one.  
2 Whilst in the stop mode, press the MENU/  
ENTER button.  
10Press the MENU/ENTER button.  
3 Press the  
or  
button repeatedly to se-  
lect "EDIT".  
The unit will finish recording the character information  
and enter the stop mode.  
4 Press the MENU/ENTER button.  
5 Press the  
or  
but-  
6
Note:  
ton repeatedly to se-  
lect "NAME STAMP".  
If the total number of tracks on the master MiniDisc does  
not match that on the MiniDisc for stamping, the unit will  
display "Can'tSTAMP" and turn off.  
6 Press the MENU/EN-  
TER button.  
To cancel the operation, press the :OFF/HOLD but-  
ton.  
If this happens, adjust the total number of tracks on the  
newly recorded MiniDisc using the edit operation.  
7 Press the MENU/ENTER button.  
8 When the unit displays "CHANGE MD", re-  
move the master MiniDisc.  
Remove it without turning off the power. Or, the oper-  
ation will be cancelled.  
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Editing a Recorded MiniDisc  
! To erase one track at a time  
! To erase all of the tracks at once  
1 Start playing the track to be erased, and 1 Whilst in the stop mode, press the MENU/  
press the  
button.  
ENTER button.  
or  
lect "EDIT".  
2 Press the MENU/ENTER button.  
3 Press the  
2 Press the  
button repeatedly to se-  
or  
button repeatedly to se-  
3 Press the MENU/ENTER button.  
4 Press the  
lect "EDIT".  
4 Press the MENU/ENTER button.  
5 Press the  
or  
lect "ALL ERASE".  
button repeatedly to se-  
or  
lect "ERASE".  
button repeatedly to se-  
5 Press the MENU/ENTER button.  
6 Press the MENU/ENTER button.  
To cancel the operation, press the :OFF/HOLD but-  
ton.  
To cancel the operation, press the :OFF/HOLD but-  
ton.  
6 Press the MENU/ENTER button again.  
7 Press the MENU/ENTER button again.  
The track will be erased.  
All of the tracks will be erased.  
8 To erase other tracks, repeat steps 1 - 7.  
Note:  
Complete the operation within 7 seconds whilst selecting  
the menus.  
Caution:  
Once a track has been erased, it cannot be recov-  
ered. Check the track number before erasing it.  
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! To divide a track  
! To combine tracks  
1 Start playing the track to be divided into two. 1 Start playing the latter of the two tracks to be  
Press the  
button at the point where you  
combined, and press the  
button.  
want to divide the track.  
2 Press the MENU/ENTER button.  
3 Press the  
2 Press the MENU/ENTER button.  
or  
button repeatedly to se-  
3 Press the  
or  
button repeatedly to se-  
lect "EDIT".  
lect "EDIT".  
4 Press the MENU/ENTER button.  
5 Press the  
4 Press the MENU/ENTER button.  
5 Press the  
or  
lect "COMBINE".  
button repeatedly to se-  
or  
lect "DIVIDE".  
button repeatedly to se-  
6
6 Press the MENU/ENTER button.  
6 Press the MENU/ENTER button.  
To cancel the operation, press the :OFF/HOLD but-  
ton.  
To cancel the operation, press the :OFF/HOLD but-  
ton.  
7 Press the MENU/ENTER button again.  
The two tracks will be combined, and the unit will be  
paused at the beginning of the combined track.  
7 Press the MENU/ENTER button again.  
The track will be divided into two tracks, and the unit  
will be paused at the beginning of the second of the  
two new tracks.  
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Editing a Recorded MiniDisc (continued)  
When a track has a name before dividing:  
! To move a track  
The two new tracks will have the same name. However, in  
the "TOC FULL" condition, the second track may not be  
named.  
1 Play the track to be moved, and press the  
button.  
Total number of tracks that can be divided:  
2 Press the MENU/ENTER button.  
Each disc can hold up to 255 tracks. However, even if the  
number of assigned tracks has not reached 255, it might  
not be possible to make any further divisions of tracks.  
3 Press the  
or  
button repeatedly to se-  
lect "EDIT".  
4 Press the MENU/ENTER button.  
5 Press the  
To combine two non-adjacent tracks:  
First, put the two tracks next to each other in the order  
you want using the MOVE function. Then combine them  
using the COMBINE function.  
or  
button repeatedly to se-  
lect "MOVE".  
When one or both tracks to be combined have a  
name:  
The first track name will be used. However, when the first  
track does not have a name, the second track name will  
be used.  
6 Press the MENU/ENTER button.  
To cancel the operation, press the :OFF/HOLD but-  
ton.  
In the following cases, tracks may not be combined.  
" Tracks recorded by different input modes/sources can-  
not be combined.  
Examples:  
7 Press the  
or  
button to select the direc-  
tion.  
" Digital recorded track and analogue recorded track.  
" Different recording modes (stereo recording, 2 times  
long recording, 4 times long recording, monaural re-  
cording).  
8 Press the MENU/ENTER button again.  
The track will be moved, and the unit will be paused at  
the beginning of the track.  
" Tracks whose recording time is less than 12 seconds.  
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Listening through  
Another System  
When connecting with other equipment, turn off the  
power or turn down the volume to "0".  
Resuming auto play  
When you stop and then restart playback without remov-  
ing the disc, playback will resume from the point at which  
the disc was stopped.  
Stopping  
First track  
Stopped track  
Playing  
Once you remove the MiniDisc, playback starts from the  
first track.  
Stopping  
Supplied  
connection cable  
First track  
Playing  
Stopped track  
6
If you unplug and plug in the AC adaptor without a bat-  
tery in the unit, playback starts from the beginning of the  
stopped track.  
Supplied output  
To the REMOTE/  
conversion cable  
Stopping  
PHONES socket  
(4-pole to 3-pole  
plug conversion)  
4-pole  
plug  
First track  
Stopped track  
Playing  
Notes:  
" It is recommended that the volume level of the  
MiniDisc unit be set to maximum when listening  
through a stereo system.  
" When recording with a stereo system, eliminate the  
confirmation sound (page 33). Otherwise, it will also  
be recorded.  
" Recording will be made in the analogue mode.  
" Character information will not be recorded.  
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About Net MD  
Digital audio data can be imported into the hard disk of a  
PC in the following methods:  
! What is a Net MD portable recorder?  
The USB is adopted to ensure high compatibility of PCs  
and MDs.  
Audio data saved on the hard disk of a PC can be trans-  
ferred to a Net MD-compatible recorder using the pro-  
vided software "BeatJam".  
" Converting the music downloaded via the music distri-  
bution service on the Internet into ATRAC3 of the  
OpenMG system.  
Not only the basic operations but also the title editing of  
audio data on an MD can be performed via the PC.  
" Recording an audio CD via the CD-ROM drive of a PC  
on the hard disk. (Compressing data with the ATRAC3  
sound compressing system)  
" Converting the existing MP3, WAV audio files into  
ATRAC3 of the OpenMG system.  
EMD service  
(Electronic Music Audio CD  
Distribution)  
MP3, WAV type  
audio files  
The saved audio data can be played on the existing MD  
player, as its recording method is not changed when  
being recorded on an MD. (To play audio data saved in  
the MDLP mode, the MDLP-support MD player is  
required.)  
MD portable recorder  
compatible with Net MD  
All the audio data managed by "BeatJam" is encrypted by  
the OpenMG system and recorded on the hard disk of  
the PC, which prevents its unauthorised use or distribu-  
tion.  
USB connection  
PC hard disk  
(BeatJam)  
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! Transferring audio data from a PC to  
MD portable recorder IM-DR420H  
(check-in/check-out)  
By using the provided software "BeatJam", you can  
transfer audio data from the hard disk of the PC to IM-  
DR420H, the Net MD-support MD portable recorder.  
! Restrictions on check-in and check-out  
" One piece of audio data can be checked out up to 3  
times (except for some pieces).  
You cannot check out a track more than 3 times. How-  
ever, if the track is returned to the PC once by using  
the check-in function, you can check out the same  
track again.  
"Check-out" is to transfer audio data from a PC to a Net  
MD-support MD portable recorder, and "check-in" is to  
return it from the recorder to the same PC.  
" You can check in the checked-out audio data to the  
same PC only. You cannot check it in to other PCs.  
! Restrictions on audio data  
Net MD-support  
Check-out  
Along with the popularization of the music distribution  
service via the Internet, high-quality digital music can be  
obtained easily, whereas some pieces are distributed  
with restrictions on the number of check-out or the  
recording/playback method to prevent infringement of  
copyrights caused by unauthorised distributions. This  
unit mounts the copyright protection technology to realise  
playback or recording in compliance with the will of the  
copyright owners. For details in possibilities and the fre-  
quency of audio data check-out to a Net MD-support  
device, contact respective music distribution service  
companies.  
MD portable  
recorder  
7
Check-in  
PC  
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System Requirements  
See the table below for the system requirements, especially free space and memory.  
OS  
Windows XP Home Edition*1/ Windows Mil- Windows 98  
Professional*1 lennium Edition Second Edition  
Windows 2000 Professional*1  
CPU  
Pentium 300 MHz or higher MMX Pentium 233 MHz or  
MMX Pentium 233 MHz or  
higher (MMX Pentium 200  
MHz minimum)  
(MMX Pentium 233 MHz  
minimum)  
higher (MMX Pentium 200  
MHz minimum)  
Memory  
Others  
128 MB or more (64 MB minimum) 64 MB or more  
" Display...1024 x 768 resolution, High Color or upper  
" Sound source...Sound card  
64 MB or more  
*1 To use this software, login as system administrator  
(computer administrator).  
" "BeatJam" is a copy protected material of Justsystem  
Corporation. Copyrights and other rights related to  
"BeatJam" belong to Justsystem Corporation.  
" "BeatJam" is a registered trademark of Justsystem  
Corporation.  
Hard disk space  
120 MB or more  
" Additional space is required to store music data.  
" The required space depends on the format or  
reserved space.  
" "ATRAC3" and its logo, "OpenMG" and  
,
"Net MD" and , OpenMG Jukebox and Sonic-  
Stage are trademarks of Sony Corporation.  
" Pentium and MMX are registered trademarks of Intel  
Corporation in the United States.  
" Microsoft, Windows, and DirectX are trademarks or  
registered trademarks of Microsoft Corporation in the  
United States and/or other countries.  
" Screen shots are used according to the guide lines of  
Microsoft Corporation.  
" "ATRAC3" and its logo indicate audio compression  
technology of Sony Corporation. The compatibility is  
not guaranteed.  
Notes:  
"
USB ports are required to connect with external devices  
or media. The operation via USB hub is not guaranteed.  
" Depending on the driver or CD-ROM drive, audio CDs  
may not be recorded.  
" Operations are not guaranteed when using BeatJam  
on dual-boot computers.  
with other music software simultaneously.  
with different version simultaneously.  
" You cannot use BeatJam with programs that create  
virtual CD-ROM drives.  
" Other company names and product names are trade-  
marks or registered trademarks of their respective  
owners or Justsystem Corporation.  
" You cannot use BeatJam when more than one Open-  
MG compatible audio device is connected.  
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Software Installation  
Caution:  
Windows XP/2000  
User with Administrator* rights needs to log on. Confirm  
with the network or computer Administrator if you are in a  
workgroup.  
! Installation of BeatJam  
Plugin and USB driver required for transferring music  
files are also installed along with BeatJam.  
(Example: Windows XP English version)  
*
User name in Administrator or Administrators group  
under Windows 2000.  
1
Insert BeatJam CD-ROM into the CD-ROM drive.  
Setup application appears.  
For Windows XP and Me user  
When you use the "System Restore" system tool in Win-  
dows XP or Windows Me, all the music files that you  
recorded or imported may become unplayable.  
Please back up all your music files using the Backup Tool  
before executing "System Restore".  
7
If a previous version of OpenMG Jukebox* or Sonic-  
Stage* is currently installed on your computer  
OpenMG Jukebox or SonicStage should be upgraded.  
The screen appears to prompt you to upgrade the soft-  
ware. Click "Continue" to proceed.  
2 Click "BeatJam Setup".  
Setup starts.  
* OpenMG Jukebox and SonicStage are softwares of  
Sony Corporation.  
Follow the instructions on the screen.  
Hard disk contains old BeatJam database  
You can select to reuse or delete the database during  
setup.  
Installation does not start even if CD-ROM is inserted  
If the setup application does not appear, perform the following.  
1. Click Windows "Start" button and select "My Computer".  
Double click "My Computer" on the desktop if you use  
Windows Me, 98SE or 2000.  
2. Right click on "OMGBJ" indicating CD-ROM drive and  
select "Open" from the menu.  
3. Double click AUTOPLAY.EXE from the list.  
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Connecting to a PC  
Connect your PC and the MD portable recorder with the supplied USB connection cable.  
PC  
To the USB port  
AC 110 - 240V,  
50/60 Hz  
MD portable recorder  
1
2
To the USB socket  
To the DC IN 3V socket  
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Caution:  
! Checking the USB driver  
Whilst the MD portable recorder is connected to the com-  
puter, after clicking "Control Panel"  
the "Hardware" tab and click "Device Manager" to check  
the following device name.  
" The operation is not guaranteed if 2 or more USB  
devices are connected to your PC.  
"System", select  
" Insert the USB connection cable directly into the USB  
port on the PC. We do not guarantee the operation  
with it connected via a USB hub, etc.  
" When connecting the MD portable recorder, discon-  
nect all the other USB devices from the PC. The  
sound may skip if they are connected.  
" Universal Serial Bus controllers  
" It is recommended that the MD portable recorder  
be used with an AC adaptor.  
" If the power supply to the PC or the MD portable  
recorder stops during the operation of this system,  
TOC information may not be written on the MD. If it  
occurs, restart the operation from the beginning.  
" We do not guarantee the operation with the self built  
computers or modified motherboards.  
7
" If cables such as an extension cable or two-way cable  
is connected instead of a connection cable, the line  
quality will be degraded and the software may not  
operate properly.  
" When connecting the unit to your PC, use a battery as  
well as an AC adaptor. It not only prevents data loss  
from disconnection, but also speeds up data writing to  
MD.  
Net MD  
Windows 2000:  
Open "System" in "Control Panel", select the "Hardware"  
tab and click "Device Manager".  
Windows 98 Second Edition:  
Open "System" in "Control Panel", and click the "Device  
Manager".  
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Transferring Data  
! Checking out  
! Checking in  
Check-out is to transfer tracks to OpenMG compatible  
players. You can check out recorded tracks with BeatJam  
up to 3 times.  
Check-in means to return the tracks from external  
devices to the PC. You can check-in tracks only to the  
source PC.  
1 Connect this unit to the PC.  
1 Connect this unit to the PC.  
"PC" appears on the unit display and operations with  
the unit are disabled.  
"PC" appears on the unit display and operations with  
the unit are disabled.  
However, "PC" is not displayed whilst in the record-  
ing, recording pause or menu operation mode.  
However, "PC" is not displayed whilst in the record-  
ing, recording pause or menu operation mode.  
2 Transfer music files to the unit (check-out).  
2 Return a music file to your PC.  
For details, refer to the manual of BeatJam.  
For details, refer to the manual of BeatJam.  
Follow the instructions below to take out the MD after  
check-out:  
1. Remove the USB connector from the MD portable re-  
corder.  
2. Turn off the MD recorder.  
3. Remove the MD.  
Caution:  
" If the USB connection or the power supply to the com-  
puter or the MD portable recorder is cut off during  
check-in or check-out operation, audio data may be  
lost.  
" If a checked-out track is deleted in another computer,  
it cannot be checked in any more.  
TOC writing on an MD:  
" TOC writing will start when check-in or check-out is  
complete. Whilst writing, TOC indicator on the unit will  
flash. (Refer to page 17.)  
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MiniDisc System Limitations  
The unit may have the following symptoms whilst recording or editing. The unit is not out of order.  
SYMPTOM  
LIMITATIONS  
"DISC FULL" or "TOC FULL" appears  
even though the MiniDisc still has re-  
cording time left.  
More than 255 tracks (maximum) cannot be recorded regardless of  
the recording time. If the MiniDisc is recorded or edited repeatedly or  
if it has scratches (recording skips scratched parts), you may not be  
able to record the maximum tracks above.  
The remaining recording time does not  
increase even though you erased  
tracks.  
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.  
The total of the recorded time and the  
remaining time does not match the max-  
imum recordable time.  
One cluster (approximately 2 seconds) is the minimum unit for re-  
cording. For example, a 3-second track uses 2 clusters (approximate-  
ly 4 seconds). Therefore, the actual recordable time may be shorter  
than the displayed time.  
Combine function does not work.  
Sound skips in fast reverse/forward.  
A MiniDisc on which recording and editing are repeated may not al-  
low the combine function.  
8
If one track is divided and recorded in separate places on a repeat-  
edly recorded or edited MiniDisc, sound may skip.  
A track number is created in the middle  
of a track.  
A track number may be created if there are scratches or dust on the  
MiniDisc.  
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Error Messages  
ERROR  
MESSAGES  
MEANING  
ERROR  
MESSAGES  
MEANING  
BATT EMPTY " The battery has run down.  
Can'tSTAMP " Stamp function does not work.  
BLANK MD  
Can't COPY  
" Nothing is recorded.  
(Check the number of tracks.)  
(Replace the disc with a recorded disc.)  
Can'tWRITE " Cannot save the TOC information  
correctly to a MiniDisc.  
" You tried to record from a copy pro-  
hibited MiniDisc.  
DEFECT!  
" The disc is scratched.  
(Record using the analogue cable.)  
(If the recorded sound is not right, retry  
recording or replace the disc with a re-  
cordable one.)  
" You tried to record signals other than  
music (such as data).  
DISC FULL  
Er-MD (**)  
" The disc is out of recording space.  
Can't EDIT  
" A track cannot be edited.  
" The microprocessor has reported a  
system fault and the unit is out of or-  
der.  
(Change the stop position of the track  
and then edit it.)  
Can't LOCK  
Can't PLAY  
" You tried to remove the MD whilst re-  
cording or editing.  
(To have it repaired, go to the distributor  
where you purchased the unit.)  
" You tried to play back a track that  
cannot be played with this equip-  
ment.  
HOLD  
" The unit is in the hold mode.  
LOCKED  
" You removed a MiniDisc whilst re-  
cording or editing.  
Can't READ  
(*)  
" The disc data cannot be read be-  
cause the disc is damaged.  
(Turn off the power before removing the  
MiniDisc.)  
(Reload the Minidisc or replace it with  
another one.)  
NO DISC  
" A disc has not been loaded.  
Can't REC  
" Recording cannot be performed cor-  
rectly due to vibration or shock.  
A number or symbol appears in (*) position.  
52  
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IM-DR420H  
ERROR  
MESSAGES  
MEANING  
ERROR  
MESSAGES  
MEANING  
NO SIGNAL  
" Poor connection of the digital cable.  
TEMP OVER " The temperature is too high.  
" No output signal comes out from the  
(Turn off the power, and wait a while.)  
connected unit.  
TOC FORM  
(**)  
" There is an error in the recording sig-  
nal.  
(Use the AC power for the connected  
unit.)  
(Erase all of the tracks, and then record  
again.)  
" The input signal has improper sam-  
pling frequency.  
TOC FULL  
Tr. Protect  
" There is no space left for recording  
character information (track names,  
disc names, etc.).  
PLAY MD  
POWER?  
" You tried to record on a playback-  
only disc.  
" AC adaptor other than specified.  
" The track has been protected from  
being erased.  
PROTECTED " The write protection tab of a MiniDisc  
is set to the protected position.  
(Edit the track with the device on which  
it was recorded.)  
8
SORRY  
" Since a track number is currently be-  
ing located or updated, the unit can-  
not accept your command.  
? DISC  
" A disc which contains data other  
than music was played.  
(Wait a while and try the operation  
again.)  
(A disc which contains nonmusic data  
cannot be played.)  
" There is an error in the signal record-  
ed on the disc.  
A number or symbol appears in (*) position.  
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Troubleshooting  
Many potential "problems" 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.  
Recording and editing are impossible.  
" Is the MiniDisc protected against accidental eras-  
ure?  
" Is the AC adaptor disconnected?  
" Is the battery exhausted?  
" Is the unit in the hold mode?  
" Has condensation formed inside the unit?  
" Is the unit being influenced by mechanical shock or  
by static electricity?  
" Is the unit connected properly to the other equip-  
ment?  
" Is the AC adaptor unplugged or did a power failure  
occur whilst recording or editing?  
" Is the unit in the hold mode?  
" Is an optical signal being output from the stereo sys-  
tem? Read the operation manual for the stereo sys-  
tem.  
No sound is heard from the earphones.  
" Is the volume set too low?  
" Are the earphones plugged in?  
" Are you trying to play a MiniDisc with data on it in-  
stead of a MiniDisc containing music?  
The operation is unstable whilst the PC and the unit  
are connected.  
" Are you using the USB cable that was purchased  
separately?  
The display does not show anything or malfunc-  
tions.  
" Is the PC out of order?  
When the operation buttons are pressed, the unit  
does not respond.  
" Is the unit in the hold mode?  
" Is the battery exhausted?  
" Is the earphones plug inserted firmly?  
" Are you using another application with this pro-  
gramme simultaneously?  
Some sounds are skipped.  
" Is the battery exhausted?  
Editing is not possible.  
" Is the unit being subjected to excessive vibration?  
" Are the PC and the MD portable recorder connect-  
ed improperly?  
The MiniDisc cannot be ejected.  
" Is the MD recorder in the hold mode?  
" Is a commercial playback-only MD inserted?  
" Has the track number or character information been  
written on the disc yet?  
" Is the unit in the recording or editing mode?  
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Maintenance  
! Cleaning  
! If trouble occurs  
When the unit becomes dirty  
When this product is subjected to strong external interfer-  
ence (mechanical shock, excessive static electricity,  
abnormal supply voltage due to lightning, etc.) or if it is  
operated incorrectly, it may malfunction.  
Clean it with a soft cloth. When the unit is excessively  
dirty, use a soft cloth dampened in water (external sur-  
faces only).  
Should a failure occur, the lid may not open by sliding the  
OPEN lever.  
Clean the plugs and the connecting sockets.  
If the plugs or sockets are dirty, noise may be heard.  
Cleaning will prevent noise.  
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.  
5. After about 30 seconds, press the  
button as a test.  
Caution:  
" Do not use chemicals for cleaning (petrol, paint thin-  
ner, etc.). It may damage the cabinet finish.  
" Do not apply oil to the inside of the unit. It may cause  
malfunctions.  
! Moisture condensation  
When the unit has condensation inside, the disc signals  
cannot be read, and the unit may not function properly.  
8
In the following cases, condensation may form inside the  
unit.  
" Shortly after turning on a heater.  
" When the unit is placed in a room where there is  
excessive steam or moisture.  
" When the unit is moved from a cool place to a warm  
place.  
To remove condensation:  
Remove the MiniDisc and leave the unit for approxi-  
mately 1 hour. The condensation should evaporate and  
the unit will work properly.  
55  
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Specifications  
As a part of our policy of continuous improvement, SHARP reserves the right to make design and specification chang-  
es for product improvement without prior notice. The performance specification figures indicated are nominal values  
of production units. There may be some deviations from these values in individual units.  
Power source:  
DC 1.2 V:  
DC 3 V:  
Rechargeable Nickel-Metal Hydride Battery (AD-N70BT) x 1  
AC adaptor (AC 110 - 240 V, 50/60 Hz)  
DC 1.5 V:  
Commercially available, "AA" size (LR6), alkaline battery x 1  
Power consumption:  
Output power:  
60 mA (AC adaptor)  
RMS: 16 mW (8 mW + 8 mW)  
(0.2 % T.H.D.)  
Charging time:  
Dimensions:  
Approx. 3.4 hours (90 %)  
Approx. 5.4 hours (fully charged)(When using the AC adaptor included with the unit)  
Width: 83 mm (3-9/32")  
Height: 28 mm (1-1/8")  
Depth: 76 mm (3")  
Excluding the projection around the USB connection terminal  
143 g (0.32 lbs.) with rechargeable battery  
Line/optical digital, microphone (powered by the main unit)  
Earphones (impedance: 32 ohms)/remote control  
Portable MiniDisc recorder  
Non-contact, 3-beam semiconductor laser pickup  
Stereo 2 channels/monaural 1 channel  
20 - 20,000 Hz ( 3 dB)  
Approx. 400 - 1,800 rpm CLV (Playback), approx. 400 - 2,700 rpm CLV (Recording)  
ACIRC (Advanced Cross Interleave Reed-Solomon Code)  
ATRAC/ATRAC3 (Adaptive TRansform Acoustic Coding), 24-bit computed type  
Magnetic modulation overwrite method  
44.1 kHz (32 kHz and 48 kHz signals are converted to 44.1 kHz, and then recorded.)  
Unmeasurable (less than 0.001 % W. peak)  
Weight:  
Input socket:  
Output socket:  
Type:  
Signal readout:  
Audio channels:  
Frequency response:  
Rotation speed:  
Error correction:  
Coding:  
Recording method:  
Sampling frequency:  
Wow and flutter:  
56  
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IM-DR420H  
Battery life:  
Stereo  
2 times long  
4 times long  
When using the rechargeable Continuous Continuous Continuous Continuous Continuous Continuous  
battery (fully charged) includ- recording:  
play: Ap-  
prox.  
33 hours  
recording:  
Approx.  
13 hours  
play: Ap-  
prox.  
44 hours  
recording:  
Approx.  
18 hours  
play: Ap-  
prox.  
51 hours  
ed with the unit  
Approx.  
8 hours  
When using a commercially  
available, high capacity, "AA" recording:  
size (LR6), alkaline battery  
Continuous Continuous Continuous Continuous Continuous Continuous  
play: Ap-  
prox.  
recording:  
Approx.  
7 hours  
play: Ap-  
prox.  
62 hours  
recording:  
Approx.  
11 hours  
play: Ap-  
prox.  
75 hours  
Approx.  
4 hours  
44 hours  
" The continuous recording time is for analogue inputs when the volume level is set to "VOL 0".  
" The continuous play time shows the value when the volume level is set to "VOL 15".  
" The above values are the standard values when the unit is used at an ambient temperature of 25°C (77°F).  
" The operating time when using an alkaline battery may be different, depending on the type and manufacturer of the  
battery, and on the operating temperature.  
8
Input sensitivity:  
Output level:  
Specified  
Reference input  
level  
Input impedance  
Maximum  
output level  
Load imped-  
ance  
output  
MIC H  
MIC L  
LINE  
0.25 mV  
2.5 mV  
100 mV  
10 k ohms  
10 k ohms  
20 k ohms  
Ear-  
phones  
-
8 mW + 8 mW 32 ohms  
10 k ohms  
LINE  
125 mV  
(-12 dB) *1  
-
*1 When using the supplied output conversion cable.  
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MEMO  
IM-DR420H(E) (TINSE0554AWZZ)  
MEMO  
IM-DR420H(E) (TINSE0554AWZZ)  
TERMS OF GUARANTEE  
4. This guarantee does not cover any faults or defects  
Subject to the terms listed below, Sharp Electronics (U.K.)  
Ltd. (hereinafter called “the Company”) 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.  
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 Company’s 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.  
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.  
6. No person has any authority to vary the terms or condi-  
tions of this guarantee.  
3. The guarantee does not cover MiniDiscs or batteries.  
7. This guarantee is offered as an additional benefit to  
the consumer’s statutory rights and does not affect  
these rights in any way.  
SHARP ELECTRONICS (U.K.) LTD.  
Sharp House, Thorp Road, Newton Heath, Manchester, M40 5BE  
SHARP CORPORATION  
TINSE0554AWZZ  
03G R YT 1  
E
IM-DR420H(E) (TINSE0554AWZZ)  

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