Denon UD-M31 User manual

CD RECEIVER
UD-M31
+1010
PANEL
CALL
DISC
SKIP
GROUP
CT
PROG/
DIRECT
PTY
REPEAT
RDS
RANDOM
TITLE/CHARACTER TIME
EDIT
TUNING TUNING
ENTER
MEMORY
TONE/SDB
TUNER
PRESET
BAND
CD-R MD
CD
123
654
987
CLEAR
TAPE
DISPLAY
VOLUME
FUNCTION
SLEEP
SYSTEM
POWER
RC-933
ON / STANDBY
CD RECEIVER UD-M31
TONE/ SDB
FUNCTION
MENU / SET
BAND
PHONES
VOLUME
+
-
OPERATING INSTRUCTIONS
MODE D’EMPLOI
INSTRUCCIONES DE OPERACION
FOR ENGLISH READERS PAGE 004 ~ PAGE 020
POUR LES LECTEURS FRANCAIS PAGE 021 ~ PAGE 037
PARA LECTORES DE ESPAÑOL PAGINA 038 ~ PAGINA 054
C

2
IMPORTANT TO SAFETY
WARNING:
TO PREVENT FIRE OR SHOCK
HAZARD, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR MOIS-
TURE.
CAUTION:
1. Handle the power supply cord carefully
Do not damage or deform the power supply cord.
If it is damaged or deformed, it may cause electric
shock or malfunction when used. When removing
from wall outlet, be sure to remove by holding the
plug attachment and not by pulling the cord.
2. Do not open the top cover
In order to prevent electric shock, do not open the
top cover.
If problems occur, contact your DENON DEALER.
3. Do not place anything inside
Do not place metal objects or spill liquid inside the
system.
Electric shock or malfunction may result.
NOTE:
This system uses the semiconductor laser. To allow
you to enjoy music at a stable operation, it is
recommended to use this in a room of 5 °C (41 °F) ~ 35
°C (95 °F).
CAUTION:
USE OF CONTROLS OR ADJUSTMENTS OR
REFORMANCE OF PROCEDURES OTHER THAN
THOSE SPECIFIED HEREIN MAY RESULT IN
HAZARDOUS RADIATION EXPOSURE.
THE COMPACT DISC PLAYER SHOULD NOT BE
ADJUSTED OR REPAIRED BY ANYONE EXCEPT
PROPERLY QUALIFIED SERVICE PERSONNEL.
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any
interference received, including interference that
may cause undesired operation.
This Class B digital apparatus meets all
requirements of the Canadian Interference-Causing
Equipment Regulations.
Cet appareil numérique de la classe B respecte
toutes les exigences du Règlement sur le matériel
brouilleur du Canada.
CAUTION
TO PREVENT ELECTRIC SHOCK, MATCH WIDE
BLADE OF PLUG TO WIDE SLOT, FULLY INSERT.
ATTENTION
POUR ÉVITER LES CHOCS ÉLECTRIQUES,
INTERODUIRE LA LAME LA PLUS LARGE DE LA
FICHE DANS LA BORNE CORRESPONDANTE DE
LA PRISE ET POUSSER JUSQU’ AU FOND.
CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK). NO
USER SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE
PERSONNEL.
The lightning flash with arrowhead
symbol, within an equilateral triangle, is
intended to alert the user to the
presence of uninsulated “dangerous
voltage” within the product’s enclosure
that may be of sufficient magnitude to
constitute a risk of electric shock to
persons.
The exclamation point within an
equilateral triangle is intended to alert
the user to the presence of important
operating and maintenance (servicing)
instructions in the literature
accompanying the appliance.
SAFETY INSTRUCTIONS
1. Read Instructions – All the safety and operating
instructions should be read before the product is operated.
2. Retain Instructions – The safety and operating instructions
should be retained for future reference.
3. Heed Warnings – All warnings on the product and in the
operating instructions should be adhered to.
4. Follow Instructions – All operating and use instructions
should be followed.
5. Cleaning – Unplug this product from the wall outlet before
cleaning. Do not use liquid cleaners or aerosol cleaners.
6. Attachments – Do not use attachments not recommended
by the product manufacturer as they may cause hazards.
7. Water and Moisture – Do not use this product near water
– for example, near a bath tub, wash bowl, kitchen sink, or
laundry tub; in a wet basement; or near a swimming pool;
and the like.
8. Accessories – Do not place this product on an unstable
cart, stand, tripod, bracket, or table. The product may fall,
causing serious injury to a child or adult, and serious
damage to the product. Use only with a cart, stand, tripod,
bracket, or table recommended by the manufacturer, or
sold with the product. Any mounting of the product
should follow the manufacturer’s instructions, and should
use a
mounting accessory
recommended by the
manufacturer.
9. A product and cart
combination should be
moved with care. Quick
stops, excessive force,
and uneven surfaces may
cause the product and cart
combination to overturn.
10. Ventilation – Slots and openings in the cabinet are
provided for ventilation and to ensure reliable operation of
the product and to protect it from overheating, and these
openings must not be blocked or covered. The openings
should never be blocked by placing the product on a bed,
sofa, rug, or other similar surface. This product should not
be placed in a built-in installation such as a bookcase or
rack unless proper ventilation is provided or the
manufacturer’s instructions have been adhered to.
11. Power Sources – This product should be operated only
from the type of power source indicated on the marking
label. If you are not sure of the type of power supply to
your home, consult your product dealer or local power
company. For products intended to operate from battery
power, or other sources, refer to the operating
instructions.
12. Grounding or Polarization – This product may be equipped
with a polarized alternating-current line plug (a plug having
one blade wider than the other). This plug will fit into the
power outlet only one way. This is a safety feature. If you
are unable to insert the plug fully into the outlet, try
reversing the plug. If the plug should still fail to fit, contact
your electrician to replace your obsolete outlet. Do not
defeat the safety purpose of the polarized plug.
FIGURE A
EXAMPLE OF ANTENNA GROUNDING
AS PER NATIONAL
ELECTRICAL CODE ANTENNA
LEAD IN
WIRE
GROUND
CLAMP
ELECTRIC
SERVICE
EQUIPMENT
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMPS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PART H)
NEC - NATIONAL ELECTRICAL CODE
13. Power-Cord Protection – Power-supply cords should be
routed so that they are not likely to be walked on or
pinched by items placed upon or against them, paying
particular attention to cords at plugs, convenience
receptacles, and the point where they exit from the
product.
15. Outdoor Antenna Grounding – If an outside antenna or
cable system is connected to the product, be sure the
antenna or cable system is grounded so as to provide
some protection against voltage surges and built-up static
charges. Article 810 of the National Electrical Code,
ANSI/NFPA 70, provides information with regard to proper
grounding of the mast and supporting structure, grounding
of the lead-in wire to an antenna discharge unit, size of
grounding conductors, location of antenna-discharge unit,
connection to grounding electrodes, and requirements for
the grounding electrode. See Figure A.
16. Lightning – For added protection for this product during a
lightning storm, or when it is left unattended and unused
for long periods of time, unplug it from the wall outlet and
disconnect the antenna or cable system. This will prevent
damage to the product due to lightning and power-line
surges.
17. Power Lines – An outside antenna system should not be
located in the vicinity of overhead power lines or other
electric light or power circuits, or where it can fall into such
power lines or circuits. When installing an outside antenna
system, extreme care should be taken to keep from
touching such power lines or circuits as contact with them
might be fatal.
18. Overloading – Do not overload wall outlets, extension
cords, or integral convenience receptacles as this can
result in a risk of fire or electric shock.
19. Object and Liquid Entry – Never push objects of any kind
into this product through openings as they may touch
dangerous voltage points or short-out parts that could
result in a fire or electric shock. Never spill liquid of any
kind on the product.
20. Servicing – Do not attempt to service this product yourself
as opening or removing covers may expose you to
dangerous voltage or other hazards. Refer all servicing to
qualified service personnel.
21. Damage Requiring Service – Unplug this product from the
wall outlet and refer servicing to qualified service
personnel under the following conditions:
a) When the power-supply cord or plug is damaged,
b) If liquid has been spilled, or objects have fallen into the
product,
c) If the product has been exposed to rain or water,
d) If the product does not operate normally by following
the operating instructions. Adjust only those controls
that are covered by the operating instructions as an
improper adjustment of other controls may result in
damage and will often require extensive work by a
qualified technician to restore the product to its normal
operation,
e) If the product has been dropped or damaged in any
way, and
f) When the product exhibits a distinct change in
performance – this indicates a need for service.
22. Replacement Parts – When replacement parts are
required, be sure the service technician has used
replacement parts specified by the manufacturer or have
the same characteristics as the original part. Unauthorized
substitutions may result in fire, electric shock, or other
hazards.
23. Safety Check – Upon completion of any service or repairs
to this product, ask the service technician to perform
safety checks to determine that the product is in proper
operating condition.
24. Wall or Ceiling Mounting – The product should be
mounted to a wall or ceiling only as recommended by the
manufacturer.
25. Heat – The product should be situated away from heat
sources such as radiators, heat registers, stoves, or other
products (including amplifiers) that produce heat.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
•FOR CANADA MODEL ONLY
•POUR LES MODELE CANADIENS
UNIQUEMENT
Please, record and retain the Model name and serial
number of your set shown on the rating label.
Model No. UD-M31 Serial No.

3
ENGLISH FRANCAIS ESPAÑOL
FRONT PANEL
PANNEAU AVANT
PANEL FRONTAL
REAR PANEL
PANNEAU ARRIERE
PANEL TRASERO
ON / STANDBY
CD RECEIVER UD-M31
TONE/SDB
FUNCTION
MENU / SET
BAND
PHONES
VOLUME
+
-
q w e r t y u
i
o
!0
!1
!2
!3
LOOP
ANT.
ANTENNA
FM COAX.75º
OPTICAL
OUT
DIGITAL SYSTEM
CONNECTOR
12
PRE OUT
SUB
WOOFER
SPEAKERS
IMPEDANCE 6-16º
120V 60Hz
SWITCHED
100W(0.83A)MAX
AC OUTLET
AUX TAPE
PB REC
!5!4 !6
!7
!8
!9
@0
@1
@3 @2 @3 @2
• As an aid to better understanding the operation method, the illustrations used in this manual may slightly differ from the actual system.
• Pour vous aider à mieux comprendre le mode de fonctionnement de l’unité, il est possible que les illustrations figurant dans ce manuel ne représentent pas exactement le système tel qu’il est réellement.
• Como ayuda para entender mejor el método de empleo, las ilustraciones utilizadas en este manual pueden ser ligeramente diferentes del sistema real.

4
NOTE ON USE / OBSERVATIONS RELATIVES A L’UTILISATION /
NOTAS SOBRE EL USO
• Avoid high temperatures.
Allow for sufficient heat
dispersion when installed on a
rack.
• Eviter des températures élevées
Tenir compte d’une dispersion de
chaleur suffisante lors de
l’installation sur une étagère.
• Evite altas temperaturas.
Permite la suficiente dispersión
del calor cuando está instalado en
la consola.
• Handle the power cord carefully.
Hold the plug when unplugging
the cord.
• Manipuler le cordon d’alimenta-
tion avec précaution.
Tenir la prise lors du
débranchement du cordon.
• Maneje el cordón de energía con
cuidado.
Sostenga el enchufe cuando
desconecte el cordón de energía.
• Keep the set free from moisture,
water, and dust.
• Protéger l’appareil contre
l’humidité, l’eau et lapoussière.
• Mantenga el equipo libre de
humedad, agua y polvo.
• Unplug the power cord when not
using the set for long periods of
time.
• Débrancher le cordon d’alimenta-
tion lorsque l’appareil n’est pas
utilisé pendant de longues
périodes.
• Desconecte el cordón de energía
cuando no utilice el equipo por
mucho tiempo.
• Do not obstruct the ventilation
holes.
• Ne pas obstruer les trous
d’aération.
• No obstruya los orificios de
ventilación.
✽(For sets with ventilation holes)
• Do not let foreign objects in the
set.
• Ne pas laisser des objets
étrangers dans l’appareil.
• No deje objetos extraños dentro
del equipo.
• Do not let insecticides, benzene,
and thinner come in contact with
the set.
• Ne pas mettre en contact des
insecticides, du benzène et un
diluant avec l’appareil.
• No permita el contacto de
insecticidas, gasolina y diluyentes
con el equipo.
• Never disassemble or modify the
set in any way.
• Ne jamais démonter ou modifier
l’appareil d’une manière ou d’une
autre.
• Nunca desarme o modifique el
equipo de ninguna manera.
TABLE OF CONTENTS
zMain Features …………………………………………5
xBefore Using ……………………………………………5
cCautions on Installation ………………………………5
vConnecting the Included Antennas …………………5
bConnections ……………………………………………6
nPart Names and Functions …………………………7, 8
mRemote Control Unit ………………………………9, 10
,Cautions on Handling Discs …………………………10
.Listening to Radio Programs ……………………11, 12
⁄0 Using the Timer ………………………………13 ~ 15
⁄1 Playing CDs ……………………………………16 ~ 19
• Normal Playback ……………………………………16
• Various Playback Functions …………………17, 18
• Edited Recording on Sides A and B of a Tape …18, 19
⁄2 Auto On Function ……………………………………19
⁄3 Troubleshooting ………………………………………19
⁄4 Specifications …………………………………………20
Check that the following parts are included in the package aside from the main unit:
qOperating instructions ………………………………1
wService station list ……………………………………1
eFM antenna ……………………………………………1
rAM loop antenna ………………………………………1
tRemote control unit (RC-933) ………………………1
yR03/AAA batteries ……………………………………2
et
•ACCESSORIES
B
ry
ENGLISH FRANCAIS ESPAÑOL

5
ENGLISH
1
MAIN FEATURES
1. Quality power for high quality sound
22W+22W (6 Ω/ohms, 1 kHz, T.H.D. 10%) high quality
amplifier and terminals for large speakers.
2. TONE and SDB control
TONE control is available for BASS and TREBLE
separately and the SDB (Super Dynamic Bass) control
enables powerful bass tones when listening at lower
volume levels.
This unit has Source Direct position to turn off the
TONE/SDB.
3. CD-R/RW playback
This set can play finalized CD-R/RW discs.
Note however that depending on the recording quality,
it may not be able to play certain CD-R/RW discs.
4. Compatible with the system control
Connecting the cassette deck (DRR-M31), the synchro-
recording, timer operation can be made with easy
operations.
5. Easy-to-use remote control unit
2
BEFORE USING
Read the following before using the system.
•Before turning on the power
Check again that all connections are correct and that
there are no problems with the connection cords. Be
sure to unplug the power cord before connecting or
disconnecting the connection cords.
Humming may be produced if this system is set near a
TV or other audio equipment. If this happens, try
changing the position of the equipment or the
connection cords.
•Moving the system
Be sure to remove CD before moving the system. If a
CD is left in the CD receiver, it may be scratched.
To prevent short-circuits or damage to the connection
cords, always unplug the power cord and disconnect all
connection cords to other audio equipment.
•Condensation (dew)
Condensation (water droplets) may be produced on
internal optical lenses or discs in the following cases:
• Directly after a heater is turned on.
• When the system is in a steamy or humid room.
• When the system is moved abruptly from a cold place
(room) to a warm room.
•Should condensation occur:
The signals on the disc cannot be read and the system
will not function properly. Remove the disc then let the
system set with the power on. The condensation will
evaporate in one hour or less, at which time the system
will function normally.
•Store this instructions in safe place
After reading, store this instructions along with the
warranty in a safe place. Also fill in the items on the
back paper for your convenience.
•Illustrations in this manual
Note that some of the illustrations used for explanations
in this manual may differ from the actual system.
For heat dispersal, leave at least 10 cm of space between the top, back and sides of this unit and the wall or
other components.
ON / STANDBY
CD RECEIVER UD-M31
TONE/SDB
FUNCTION
MENU / SET
BAND
PHONES
VOLUME
+
-
10 cm or more
✽
✽✽
✽
3
CAUTIONS ON INSTALLATION
4
CONNECTING THE INCLUDED ANTENNAS
Installing the FM indoor antenna
Tune in FM station (see page 11), set the antenna so that
distortion and noise is minimal, then secure the tip of the
antenna in this position using tape or a pin.
Installing the AM loop antenna
Tune in an AM station (see Page 11) and set the antenna
as far from the system as possible to keep distortion and
noise is minimal. In some cases, it is best to invert the
polarities. AM broadcasts cannot be received well if the
loop antenna is not connected or if it is set close to metal
objects.
Connecting an FM outdoor antenna
If good reception cannot be achieved with the included
FM antenna, use an FM outdoor antenna. Connect an
PAL-type connector to the coaxial cable and connect the
antenna to the FM COAX (75 Ω/ohms) terminal.
Selecting a place for the FM outdoor antenna
• Set the antenna so that it points towards the broadcast
station’s transmitting antenna. Behind buildings or
mountains, set the antenna in the position at which
reception is best, and also try changing the direction of
the antenna.
• Do not install the antenna under power lines.
Doing so is extremely dangerous, as the power line
could touch the antenna.
• Install the antenna away from roads or train tracks to
avoid noise from cars or trains.
• Do not install the antenna too high, as it may be hit by
lightning.
AM
LOOP
ANT.
FM COAX. 75
FM antenna
AM loop antenna Assembling the AM loop antenna
1
4
23 1
4
23
Connection to the AM
loop antenna terminals.
Bend in the reverse
direction.
Remove the vinyl tie
and take out the
connection line.
Installation hole
Mount on wall, etc.
Mount
a. With the antenna
on top any stable
surface.
b. With the antenna
attached to a wall.
Installing an AM outdoor antenna
Connect the signal wire from the AM outdoor antenna to
the antenna terminal. Be sure to connect the signal
ground wire to the terminal. Also be sure to connect
the included AM loop antenna.
AM
LOOP
ANT.
Signal ground
AM loop antenna
AM outdoor antenna

6
ENGLISH
UD-M31 DRR-M31
UD-M31
DRR-M31
5
CONNECTIONS
Connecting the speaker systems
Connect the speaker system for the left channel (the left side as seen from the front) to
the L terminals, the speaker system for the right channel to the R terminals. Refer to
the instructions supplied with the speaker system for details. Be sure to use speaker
systems with an impedance of 6 Ω/ohms or greater.
NOTE:
•This system includes digital circuitry which may
cause interference such as color blotching or
changes in the color on TVs. If this happens, move
the system and the TV as far apart as possible.
NOTES:
•Do not plug the power cord into the power outlet until all connections are completed. Be sure to interconnect the
channels (L to L (white) and R to R (red)) properly, as shown on the diagram.
•Use the AC OUTLET for audio equipment only. Do not use them for hair driers, ets.
•Insert the plugs securely. Incomplete connections may result in noise.
•Be sure to connect the speaker cords between the speaker terminals and the speaker systems with the same
polarities ( + to +, –to –). If the polarities are switched, the sound at the center will be weak, the position of the
different instruments will be unclear, and the stereo effect will be lost.
•After unplugging the power cord, wait about 5 seconds before plugging it back in.
•Note that setting the connection cords (pin-plug cords) next to the power cords may result in humming or other
noise.
CAUTION:
•Whenever the power operation switch is in the STANDBY position, the unit is still
connected to AC line voltage.
Please be sure to unplug the power cord when you leave home for, e.g.,a
vacation, etc.
System operations
Such system operations as the timer and the auto power on functions, as well as remote control operations cannot be
performed unless all the RCA pin-plug cords and system connector cords are connected between the units, so be sure
to make all the connections properly as shown in the diagram. Also, disconnecting system connectors while the system
is operating may result in malfunctions. Be sure to unplug the power cord before changing connections.
Install the sets as shown in one of
these diagrams. In either case, be sure
that the CD receiver’s ventilation holes
are not obstructed.
(1) Connecting to Cassette deck (DRR-M31)
FM antenna
AM loop antenna
LeftSubwoofer Right
Speaker systems
Power plug
AC 120 V 60 Hz
(Plug into a power outlet)
CD receiver (UD-M31)
Side by side installation
Stacking installation
(option)
Cassette deck
(DRR-M31)
Note to CATV system installer:
This reminder is provided to call the CATV system installer’s attention to Article
820-40 of the NEC which provides guidelines for proper grounding and, in
particular, specifies that the cable ground shall be connected to the grounding
system of the building, as close to the point of cable entry as practical.

!1 MENU/SET button
•Press this button during power ON mode to
confirm or change the function. Each time this
button is pressed, the display changes as follows:
•In display mode, each time the +/–(up/down)
button is pressed, the display changes as follows:
Volume level: Indicates the current volume.
Clock: Indicates the current time. Use this to set
the time (refer to page 13).
•In TIMER and TIMER STANDBY mode, use this to
set the timer (refer to page 14) or to confirm the
timer contents (refer to page 13).
•Press this button during in STANDBY mode to
switch ON/OFF (“Saving Energy Mode”) the clock
display.
!2
5(open/close) button
•Press this button to open and close the disc tray.
•When pressed once, the disc tray opens out, and
when pressed again, the disc tray closes. If a disc
is loaded, the total number of tracks and total
playing time of the disc are displayed several
seconds after the disc tray is closed.
•When pressed in STANDBY mode, the CD
receiver’s power turns on.
!3
Disc tray
•Load discs here.
tFUNCTION button
•Use this to select the input (function).
•The input changes in the following order each
time this button is pressed:
yTONE/SDB (Super Dynamic Bass)
button
•Press this button to select the preferred sound of
TONE CONTROL/SDB. Each time this button is
pressed, the display changes as follows:
•You can switch the SDB on/off by using the +/–
(up/down) button.
•BASS and TREBLE can be adjusted by using the
+/–(up/down) button.
•When you select S.DIRECT (Source Direct),
TONE/SDB is switched off, and the sound
characteristic becomes flat.
•SDB can be controlled powerful bass tones when
listening at lower volume levels.
uVOLUME control
•Use this to adjust the overall volume (Rotary
Encorder System).
•The volume increases when the control is turned
clockwise (,) and decreases when it is turned
counterclockwise (.).
•The volume increases and decreases in 35 steps
from the minimum (VOLUME 00) to the maximum
(VOLUME MAX).
7
ENGLISH
q
Power operation switch (ON/STANDBY)
•This turns the power for the entire system on and
off.
•Press this once to turn the power on, then press
again to set the power to STANDBY mode.
•The LED color changes as follows, according to
the condition:
During power ON : green
During STANDBY : red
During TIMER STANDBY: orange
✻The muting mode is set when the main unit’s
power button is pressed and when the standby
mode is canceled from the remote control unit.
The power indicator flashes green when in the
muting mode, then stops flashing and turns green
once the set is in the operational mode.
✻If the indicator is flashing orange (quickly):
The protective circuit is activated.
If this happens, unplug the power cord to turn the
indicator off, then check the input and output
terminals on the rear panel. Check in particular for
short-circuiting of the speaker cords. Once all
connections have been corrected, plug the power
cord. (Wait for at least 10 seconds after turning
the power off before turning it back on.)
•When the UD-M31 is connected in a system with
the D-M31 series, its power button works as the
power button for the entire system. When the
UD-M31’s power turns on, the power of all the
connected system units also turns on.
✻Power is supplied to the UD-M31 even when the
power is in the standby mode (low power
consumption).
wRemote sensor
•When operating the remote control unit, point it at
this sensor.
eDisplay
•Refer to page 8.
rPHONES (headphones jack)
•Plug the headphones into this jack.
•No sound is produced from the speakers when
headphones are plugged in.
i8/–, +/ 9button
(8, 9: CD automatic search
reverse/forward button
+ , –: up/down button)
•Use the 8and 9buttons to move to the
beginning of a specific track while in CD function.
•Use the +/–button to select radio stations while in
TUNER function.
•In TUNER function, press the 2BAND and +
buttons at the same time to change the Preset
mode, the 2BAND and –buttons at the same
time to change the Tuning mode.
•Use the +/–button when you adjust tone control
(BASS or TREBLE) and you select menu function
(display, time, timer, or set up).
o2BAND button
(2: CD stop button
BAND : TUNER band button)
•In CD function, press this button to stop playback.
•In TUNER function, each time this button is
pressed, the band and FM reception mode change
as follows:
!0
1/ 3(play/pause) button
•Press this button to start playing a disc. When the
disc tray is closed, playback begins when this
button is pressed.
•When pressed in STANDBY mode, the power
automatically turns on and playback begins (Auto
On function). Press this button again to stop
playback temporarily.
PART NAMES AND FUNCTIONS
6
(1) Front Panel
CD TUNER TAPEAUX
SDB BASS S.DIRECTTREBLE
NOTE:
•The SDB should be deactivated when
listening at higher volume levels. Excessive
bass at high volume levels will result in a
distorted sound and may cause damage to
your set and speaker system.
Display mode Timer mode
Function mode Timer standby mode
Volume level Clock
Function
NOTE:
•Care must be taken when you adjust the
volume as the CD receiver is equipped with
an electronic volume control. Turn the
VOLUME control slowly referring to the
indication on the display to adjust the volume.
FM AUTO AMFM MONO
Display mode Timer mode
Timer standby modeFunction mode
Volume level Clock
Function

8
ENGLISH
!4 AM antenna terminal
(ANTENNA TERMINAL AM)
•Connect the AM antenna here.
!5 FM antenna terminal
(ANTENNA TERMINAL FM)
•Connect the FM antenna here.
!6 Digital output jack
(DIGITAL OPTICAL OUT)
•Digital data is output in optical form from this jack.
!7 System connectors
(SYSTEM CONNECTOR 1 and 2)
•When connecting the D-M31 series in a system,
connect these connectors to system connectors
on other system components.
(Use the system cords included with the other
components.)
!8 Speaker terminals (SPEAKERS)
•Use these to connect the speakers.
!9 AC OUTLET
•Use this when using this unit with the D-M31
series.
For connections, refer to “CONNECTIONS”.
(100 W MAX.)
@0 Power cord
•Plug this cord into a wall power outlet.
@1 PRE OUT terminal (SUB WOOFER)
•Connector jack for subwoofer with built-in
amplifier (super woofer), etc.
@2 Analog output jacks
•This is an output terminal for recording.
@3 Analog input jacks
(2) Rear Panel (3) Display
The selected functions, volume, reception band, reception
frequency, time, and timer settings are displayed here.
The following is displayed in the track number display in CD
mode:
•When the disc’s data cannot be read properly …………00
•In stop mode ………………………Total number of tracks
•In play and program modes …………………Track number
The following is displayed in the time display in CD mode:
•When the disc’s data cannot be read ………………00:00
•In stop mode ……………………………Total playing time
•In play and pause modes …Elapsed time for current track
These display the FM reception mode.
ST :This lights when a stereo program is
received in the FM AUTO mode.
MONO: This lights when a monaural program is
received in the FM AUTO mode and when
the BAND button is pressed, setting the
FM MONO mode.
AUTO : This lights when the BAND button is
pressed, setting the FM AUTO mode.
This lights when
a station is tuned
in properly.
This lights when
SDB mode is on.
This lights when the
tone has been
adjusted or when in
the tone adjustment
standby mode.
The timer will
operate when
this is lit.
“P.SET”lights when
the tuner preset
number is displayed.
This lights when
setting the timer.
“TIMER”lights when
the timer is set.
This lights when the
display is set to
clock mode.
This flashes for approximately
10 seconds when the
MEMORY button is pressed
while presetting stations.
1(the play indicator) lights
when a disc is playing, and
3(the pause indicator)
lights when pause mode is
set.
“RANDOM”lights
during random play.
This changes as follows each time the REPEAT button is pressed:
1st press : RPT 1 (single-track repeat) is displayed and the number
of the track to be repeated on the display.
2nd press : RPT ALL (1 disc all track repeat) is displayed.
3rd press : Nothing is displayed.
NOTE:
•The timer standby mark (“”) does not light if the current time and the timer have not been set.
“PROG”lights during
programmed playback.
“EDIT”lights when
editing cassette tapes.
Flashes when remote
control signals are received.
This lights when the sleep
timer is operating.

9
ENGLISH
•The supplied remote control unit (RC-933) is for use with the UD-M31 unit only.
•If the cassette deck (DRR-M31) of the D-M31 series are connected to the main unit, you may operate each of the
above components using its respective remote control unit (refer to page 9,10).
7
REMOTE CONTROL UNIT
(1) Inserting the batteries
qOpen the battery compartment cover of the remote
control unit.
Press the knob and open the cover in the direction of
the arrow.
wInsert the two R03 (AAA) batteries, following the + and
–marks in the battery compartment.
eClose the cover of the battery compartment.
Cautions on Batteries
•Use R03 (AAA) batteries in this remote control unit.
•Replace the batteries with new ones after
approximately 1 year, though this depends on the
frequency with which the remote control unit is
used.
•Replace the batteries with new ones if the unit does
not operate when the remote control unit is
operated from nearby, even if the batteries are less
than a year old.
•Be sure to insert the batteries in the proper
direction, following the “<”and “>”marks in
the battery compartment.
•To avoid damage or leakage of battery fluid:
•Do not use a new battery with an old one.
•Do not use two different types of batteries.
•Do not short-circuit, take apart, heat or dispose of
batteries in flames.
•Remove the batteries when you do not plan to use
the remote control unit for an extended period of
time.
•If the battery fluid should leak, carefully wipe off the
fluid from the inside of the battery compartment,
then insert new batteries.
(2) Using the Remote Control Unit
•The remote sensor is located on the CD receiver. Point
the remote control unit at the remote sensor as shown
on the diagram when operating it.
•The remote control unit will operate from a direct
distance of approximately 7 meters, but this distance
will be shortened if obstacles are present or if operated
at an angle. (The remote control unit will operate at an
angle of up to 30°in either direction.)
7m
30°
30°
B
B
NOTES:
•The remote control unit may not operate if the
remote sensor is exposed to direct sunlight or the
strong light from a lighting fixture, or if there is an
obstacle between the remote control unit and the
remote sensor.
•Do not press buttons on the remote control unit and
on the set at the same time. Doing so could result
in malfunctions.
•If the remote control unit is pointed away from the
re-mote sensor during continuous operations (such
as when turning the volume up or down), the
operation will stop. If this happens, point the remote
control unit at the remote sensor and press the
button again.
The UD-M31 comes with a system remote control unit (RC-933).
B
RC-933
TONE /SDB
REPEAT
CLEAR
DISC
SKIP
CALL
PROG /
DIRECT
RANDOM
EDIT
BAND
123
546
789
+1010
POWER
SYSTEM
VOLUME
RDS
PTY
GROUP
CT
PANEL
TUNING TUNING
ENTER
MEMORY
TITLE
/CHARACTER TIME
PRESET
SLEEP
TUNER
FUNCTION
DISPLAY
+
-
CD
CD-R MD
TAPE
(3) Remote Control Unit Part Names and Functions
TIME button
•Press this button during the play or
pause mode to switch the time
display.elapsed time per track
↓
remaining time for the track
↓
total remaining time on the disc
(During programmed playback,
indicate the total remaining time of
the programmed tracks.)
EDIT button
•Press this button for edited
recording on a tape, dividing the
tracks onto sides A and B
according to the length of the tape.
6and 7
(manual search) buttons
8and 9
(automatic search) buttons
2(stop) button
CD function buttons
EDIT button
•Press this button to input the
station name.
TUNING •and ªbuttons
•Use these buttons to selecting
the station.
MEMORY button
•Press this button to preset
memory.
PRESET •/ ªbutton
•Use these buttons to recall
preset stations on the tuner.
BAND button
•Use this button to selecting the
band.
TUNER function buttons
FM AUTO FM MONO
AM
•Use this switch to turn on the
power of the entire system or set
the power to STANDBY mode.
Power operation button
•Press this button to set the sleep
timer.
SLEEP button
•Press this button to switch the
input (function).
•The input changes in the following
order each time this button is
pressed.
FUNCTION button
CD TUNER
TAPE AUX
•Press this button to adjust SDB
(Super Dynamic Bass) and TONE.
TONE/SDB button
•Use these buttons to adjust the
volume.
•The volume increases when the •
button is pressed and decreases
when the ªbutton is pressed.
VOLUME button
•The display changes in the
following order each time this
button is pressed.
DISPLAY button
Volume level Clock
Function
Number buttons
•Press these buttons to specify the
desired track.
CLEAR button
•Press this button to clear the track
from the program.
CD function buttons
•Press this button to set the
function TUNER mode.
TUNER button
•Press this button to play or pause
of the CD player.
CD 1/ 3(play/pause) button
RANDOM button
•Press this button to set the tracks
in random order.
REPEAT button
•Press this button for repeat
playback.
PROG/DIRECT button
•Press this button to switch
between PROGRAM and DIRECT
play.
CALL button
•Use this button to confirm the
programmed song.
CD function buttons
Number buttons
•Press these buttons to recall
preset station
CLEAR button
•Press this button to erase the
station name.
TUNER function buttons
Volume level Clock
Function

TAPE function buttons
B
RC-933
TONE /SDB
REPEAT
CLEAR
DISC
SKIP
CALL
PROG /
DIRECT
RANDOM
EDIT
BAND
123
546
789
+1010
POWER
SYSTEM
VOLUME
RDS
PTY
GROUP
CT
PANEL
TUNING TUNING
ENTER
MEMORY
TITLE
/CHARACTER TIME
PRESET
SLEEP
TUNER
FUNCTION
DISPLAY
+
-
CD
CD-R MD
TAPE
10
ENGLISH
6(rewind) button
•Press this button to rewind the front side of the tape.
(The back side of the tape is fast-forwarded.) Also use
this button to search for the beginning of the current
selection when playing in the forward (1) direction, or
to search for the beginning of the following selection
when playing in the reverse (0) direction.
7(fast-forward) button
•Press this button to fast-forward the front side of the
tape. (The back side of the tape is rewind.) Also use
this button to search for the beginning of the following
selection when playing in the forward (1) direction, or
to search for the beginning of the current selection
when playing in the reverse (0) direction.
2(stop) button
TAPE function buttons
1(forward play) button
•Press this to start playback or
recording in the forward
direction.
0(reverse play) button
•Press this to start playback or
recording in the reverse
direction.
Only discs with the mark can be
played on the UD-M31.
8
CAUTIONS ON HANDLING DISCS
About Compact Discs
CD’s with special shapes (heart-shaped CDs, octagonal
CDs etc.) cannot be played on this set.
Attempting to do so may damage the set. Do not use
such CDs.
C
Use compact discs that include the Cmark.
•Removing discs from their cases
As shown on the diagram, grasp the outer edge of the
disc with your fingers, insert a finger in the center hole,
press gently, then lift the disc out of the case.
•Loading discs in the disc tray
Be sure to load the disc with the labelled side facing up.
(Compact discs only play on one side.) For 8 cm CDs,
set the disc in the sunken section in the center of the
tray.
NOTES:
•The disc tray opens when the 5(open/close) button
is pressed once and closes when it is pressed
again.
•When the disc tray is closed, the disc turns
automatically for several seconds, then the total
number of tracks and total playing time of that disc
appear on the display.
•The disc tray can also be closed by pressing the 1/ 3
(play /pause) button, in which case playback
automatically starts from the first track on the disc
(or if tracks are programmed, from the first
programmed track).
Handling the Disc Tray:
•Do not turn off the power, stop the disc tray by
hand or pull on it when it is moving. Doing so may
damage it.
If the headphones’cord or some other object
accidentally gets caught in the disc tray while it is
closing and the disc tray stops, press the 5
(open/close) button again to open the tray and
remove the obstacle.
Do not set objects other than discs on the disc tray.
Doing so may damage it.
Cleaning Discs
Dust, fingerprints or spit on the disc will result in noise or
skipping. If the disc is dirty or if the CD receiver does not
operate properly, use the following procedure to clean the
disc:
•Hold the disc with the signal surface (the side opposite
the labelled side) facing up, as shown in the diagram.
•Wipe the disc gently from the center towards the edge
(in the direction of the arrow) with a soft cloth.
Do not clean discs with the following:
•Benzene, alcohol or other solvents
•Cleaner including an abrasive
•Sprays or cleaners designed for records
•Anti-static
NOTES:
•Do not wipe discs in the direction opposite the
arrow or in a circular motion as with regular records.
•The disc’s signal surface is easily damaged, so do
not wipe it with a hard cloth or rub it strongly.

11
ENGLISH
LISTENING TO RADIO PROGRAMS
Use this to automatically search for FM broadcasts and store up to 40 stations at preset channels 1 to 40.
Auto tuner presets
ON / STANDBY
CD RECEIVER UD-M31
TONE/SDB
FUNCTION
MENU / SET
BAND
PHONES
VOLUME
+
-
1
3
2 54
NOTE:
•If an FM station cannot be preset automatically due to poor reception, use the “Manual tuning”operation to tune
in the station, then preset it using the manual “Preset memory”operation.
(Check the connections on Pages 6.)
1Press the power operation switch to turn on the
power.
ON / STANDBY
2Press the FUNCTION button to select TUNER
mode.
4
Press the MENU/SET button for at least 2 seconds.
•“A PRESET”, “CANCEL –” and “START +”
appear alternately on the UD-M31’s display.
•Press the –button to cancel.
FUNCTION
+
5
Use the + button to select “START”.
•“SEARCH”flashes on the display and searching
begins.
•The TUNER function display reappears once
searching is completed.
•If you want to stop searching, press the –button.
MENU / SET
9
Manual tuning
ON / STANDBY
CD RECEIVER UD-M31
TONE/SDB
FUNCTION
MENU / SET
BAND
PHONES
VOLUME
+
-
3 4
1 2
NOTE:
•A humming sound may be heard when using a TV nearby while receiving AM programs. If this happens, move the
system as far from the TV as possible.
Example: Tuning in FM 92.50 MHz
(AM stations are tuned in using the same procedure.)
1Press the power operation switch to turn on the
power.
ON / STANDBY
2Press the FUNCTION button to select TUNER
mode.
3Press the BAND button on the tuner to select the
FM AUTO.
FUNCTION
+
-
4
Use the Tuning +/–button to tune the frequency to
92.50. Once the frequency is tuned in, adjust the
volume to the desired level using the VOLUME
control.
BAND
✽This lights when a station is tuned in.
✽The function of the +/–button on the main unit may toggle between Tuning +/–and Preset +/–functions.
•Pressing the –button while holding down the BAND button at the same time changes function of the +/–button to
Tuning +/–. (“TUNING”flashes for 5 seconds.)
•Pressing the + button while holding down the BAND button at the same time changes the function of the +/–button
to Preset +/–. (“PRESET”flashes for 5 seconds.)
•The +/–button is factory preset to function as a Tuning +/–button.
However, be sure that the +/- buttons function as the Tuning +/–button before proceeding with step 4.
Auto Tuning
•When a program being broadcast in stereo is received, the “ST”indicator lights and the program is received in stereo.
•If reception is poor and there is much noise in the stereo signals, press the BAND button to set the FM MONO mode.
•When one of the Tuning +/–button is pressed, the frequency changes in steps of 100 kHz in the FM band, 10 kHz in
the AM band.
•If one of the Tuning +/–button is held for over 1 second, the frequency continues to change when the button is
released (auto tuning) and stops when a station is tuned in. Tuning will not stop at stations whose reception is poor.
•To stop the auto tuning function, press the Tuning +/–button once.
3Press the BAND button to select the FM AUTO or
the FM MONO.
BAND

12
ENGLISH
You can preset up to 40 FM/AM stations.
You can name the preset stations (up to 8 characters each).
Presetting or naming radio stations
(This operation is only possible from the remote control unit.)
1Tune in the desired preset station.
2Press the EDIT button on the remote control unit.
•You can now begin character input.
3
Press the +/–button until the desired character
appears on the display. Press the ENTER/MEMORY
button on the remote control unit to store the input
character.
•Press the 7button or the ENTER/MEMORY
button to store the input character. The cursor will
move to the next character space. Repeat step 3
until all the characters have been stored.
•You can move the cursor backward by pressing
the 6button to make corrections.
EDIT
4
Press the EDIT button to confirm the names of the
preset stations.
•The preset number is displayed. “MEMO”and
“P. SET”indicator flashes for 10 seconds.
PRESET
+
-
ENTER
MEMORY
Next flashes
ENTER/MEMORY
EDIT
Flashes
5Press the +/–button on the remote control unit to
tune in the desired preset number.
Flashes
PRESET
+
-
6Press the ENTER/MEMORY button to confirm the
preset station number.
ENTER
MEMORY
•To discontinue the procedure, press the CLEAR button on the remote control unit before proceeding to step 4.
•To erase a preset station name, press the PRESET •/ªto display the preset station you want to erase, then press
EDIT and CLEAR. The preset station name is erased, and only the preset frequency appears on the display.
•To preset only the frequency of the radio station, start over from step 1. Then press the ENTER/MEMORY button and
proceed to steps 5 through 6. The display shows the preset number, band and frequency.
Flashes
The preset stations can be recalled using the number buttons on the remote control unit.
Also, if the following operation is performed when the system power is off, the power automatically turns on and the
radio is played. (Auto on function)
Listening to Preset Stations
(This operation is only possible from the remote control unit.)
1Press the TUNER button on the remote control unit.
2Press button “3”on the remote control unit.
TUNER
3
When the station name is preset,
station name is displayed.
Example: Listening to the station preset at number 3
•When the station name appears in the display, each press of the PANEL button on the remote control changes the
display between preset number, band, and frequency.

13
ENGLISH
The time and timer functions are incorporated in the CD receiver.
10
USING THE TIMER
Timer Settings
Types of timer operations
EVERYDAY TIMER : Use this to turn the power on and standby at the same time every day.
ONCE TIMER : Use this to turn the power on and standby once.
SLEEP TIMER : Use this to set the power to turn standby after 10 to 60 minutes, in steps of 10 minutes (operated
from the remote control unit).
Notes on timer settings
•Be sure to set the current time beforehand.
•To listen to or record a radio program (“air check”) using the timer, be sure to preset the station beforehand. (Refer to
“Presetting or naming radio station”on Page 12.)
Power Failures
If the power cord is unplugged or there is a power failure, the settings of the current time and once timer are erased and
the time display will flash. If this happens, reset the current time and the once timer.
Also check the timer and tuner presettings, and reset them if they have been cleared.
Checking the Settings
To check the timer settings, press the MENU/SET button to select TIMER.
Next, press the +/–button to select EVERYDAY or ONCE TIMER, then press the MENU/SET button repeatedly to
display in order: Timer Start mode, and (when in TUNER mode) the reception band and preset channel number, Timer
On time, Timer Off time, Press the MENU/SET button again to return to the current mode display.
Changing the Settings
Repeat the timer setting operation to erase the previous settings and set the new settings.
Clearing the Settings
Press the MENU/SET button to select TIMER. Next, press the +/–button to select EVERYDAY, then press the 2(stop)
button for at least 2 seconds while EVERYDAY is displayed to clear the everyday timer settings.
Press the MENU/SET button to select TIMER. Next, press the +/–button to select ONCE, then press the 2(stop) button
for at least 2 seconds while ONCE is displayed to clear the once timer settings.
Note on Setting the Timer
If the time set with the timer is reached while the system power is on, the operation switches to the operation set by
the timer.
Turning the Timer Off
Follow the steps for “to turn on or turn off EVERYDAY/ONCE timer feature”to turn off the EVERYDAY/ONCE timer
mode.
NOTES:
•The timer standby mark (“”) will not light if the current time is not set. If this is the case, set the current time,
then press the TIMER button.
•Be sure to set the power to the standby mode when using the timer.
The time is displayed in the 12-hour mode.
ON / STANDBY
CD RECEIVER UD-M31
TONE/SDB
FUNCTION
MENU / SET
BAND
PHONES
VOLUME
+
-
1, 3, 5, 7 2, 4, 6
Example: Setting to 9:30 p.m.
1Press the MENU/SET button to select DISPLAY
mode.
MENU / SET
2Use the +/–button to set the TIME mode.
3Press the MENU/SET button for at least 2 seconds.
+
-
+
-
4Use the +/–button to set the hours.
The hours place flashes.
•The current time can be set even when in STANDBY mode. Press the MENU/SET button. When the time flashes in
the display, proceed to steps 3 through 7.
Setting the Current Time
5Press the MENU/SET button.
6Use the +/–button to set the minutes.
7
Press the MENU/SET button at the cue of a
separate clock or time service to start the clock.
•The time display stops flashing and the clock
starts running.
Flashes
Flashes
MENU / SET
(If the clock time has already been set,
that time flashes.)
The hours place flashes.
(If the hours have already been set, that
number flashes.)
MENU / SET
The minutes place flashes.
(If the minutes have already been set,
that number flashes.)
+
-
The minutes place flashes.
MENU / SET
The display stops flashing and the clock
starts running from 00 seconds.

14
ENGLISH
ON / STANDBY
CD RECEIVER UD-M31
TONE/SDB
FUNCTION
MENU / SET
BAND
PHONES
VOLUME
+
-
2, 4, 6, 8,
10, 12, 14, 16
1, 18
3, 5, 7, 9,
11, 13, 15, 17
Example: Setting the tuner to turn on at 3:35pm, off at 3:56pm (with FM 92.50 MHz preset at channel 3) with
everyday timer.
1Press the power operation switch to turn on the
system’s power.
MENU / SET
2Press the MENU/SET button to set the timer setting
mode.
3Press either the + or –button as desired.
•The everyday timer is selected and “EVERYDAY”
appears in the display.
+
-
+
-
4Press the MENU/SET button.
Setting the Timer
5Use the +/–button to set the “TUNER”mode.
6Press the MENU/SET button.
7Use the +/–button to set the preset channel
number.
MENU / SET
Say that FM 87.5 MHz is tuned in
preset channel number “1 ”.
Flashes
MENU / SET
Flashes Flashes
(If the timer has already been set, that
number flashes.)
+
-
Flashes
The power can be set to turn on and off at a specific time or at the same time everyday, in any modes: tuner, CD,
cassette deck (optional), and timer recording (recording to the cassette deck from the tuner or AUX input).
•The Timer Start mode may change depending on the SETUP functions of AUX and TAPE.
ON / STANDBY
Flashes
8Press the MENU/SET button.
•“E”and “oN”appear alternately in the display in
the steps 8 to 11.
MENU / SET
9Use the +/–button to set the hours for the timer on
time.
+
-
Flashes Flashes
MENU / SET
10 Press the MENU/SET button.
11 Use the +/–button to set the minutes for the timer
on time.
+
-
+
-
12 Press the MENU/SET button.
•“E”and “oFF”appear alternately in the display in
the steps 12 to 15.
13 Use the +/–button to set the hours for the timer off
time.
14 Press the MENU/SET button.
15 Use the +/–button to set the minutes for the timer
off time.
MENU / SET
MENU / SET
Flashes Flashes
+
-
16 Press the MENU/SET button.
MENU / SET
17 Use the +/–button to select “E oN”.
•The mark lights.
Lights
Flashes Flashes
(If the timer has already been set, that
number flashes.)
18
Press the power operation switch to turn standby
the system’s power.
•The power switch indicator turns orange and
display turns off.
Flashes Flashes
Flashes Flashes
Flashes Flashes
(If the timer has already been set, that
number flashes.)
Flashes Flashes
(If the timer has already been set, that
number flashes.)
The display returns to as it was before
the timer setting mode was set.
ON / STANDBY
✽
✽Turning on and off the timer standby ON/OFF
•In TIMER STANDBY mode, each time the +/–button is pressed, the setting changes as follows;
•When you set only the everyday timer, the indication changes between 1 _ _/E _ _ and 1 _ _/E oN.
•When you set only the once timer, the indication changes between 1 _ _/E _ _ and 1 oN/E _ _.
•When you complete the setting, the display automatically returns to the former state after 4 seconds.
•To change the settings of TIMER STANDBY, press MENU/SET button to set the unit in TIMER STANDBY mode first,
then use +/- button to make changes.
1 oN/E oN:
1_ _/E oN:
1 oN/E _ _:
1 _ _/E _ _:
Both once and everyday timers are activated. (The mark lights.)
Only the everyday timer is activated. (The mark lights.)
Only the once timer is activated. (The mark lights.)
Both timers are canceled. (The mark turns off.)
+
-

15
ENGLISH
ON / STANDBY
CD RECEIVER UD-M31
TONE/SDB
FUNCTION
MENU / SET
BAND
PHONES
VOLUME
+
-
3, 5, 72
1 4, 6, 7
Example: Playing a compact disc with the once timer
1Press the power operation switch to turn on the
system’s power.
ON / STANDBY
2Press the 5(open/close) button and place a disc on
the disc tray. Close the disc tray.
3Press the MENU/SET button to set the timer setting
mode.
+
-
4Press the +/–button. The once timer is selected and
“ONCE”appears in the display.
Various Timer Operations
5Press the MENU/SET button.
6Use the +/–button to set the “CD”mode.
7
Now follow steps 8 to 18 under “Setting the Timer”on Page 14.
•“1”and “oN”appear alternately in the display in the steps 8 to 11.
•“1”and “oFF”appear alternately in the display in the steps 12 to 16.
•Press the MENU/SET button to select “1oN”and the mark lights in the step 17.
Flashes
MENU / SET
MENU / SET
+
-
Flashes
With this function, the power can be set to turn off after 10 to 60 minutes, in steps of 10 minutes, using the remote
control unit.
Setting the Sleep Timer
(This operation is only possible from the remote control unit.)
1Tuner currently set to FM 87.50 MHz.
2Press the SLEEP button.
3Press the SLEEP button again while
the “SLEEP”indicator is flashing.
4The previous display reappears after 5 seconds.
•The “SLEEP”indicator remains lit, indicating that the sleep timer is
functioning.
Flashes
TONE /SDB
REPEAT
PROG/
DIRECT
RANDOM
EDIT
BAND
POWER
SYSTEM
RDS
PTY
TUNING TUNING
ENTER
MEMORY
TITLE
/CHARACTER TIME
PRESET
SLEEP
TUNER
FUNCTION
+
-
2,
3
•The time is reset to “60”(60 minutes) if the SLEEP button is pressed again while the sleep timer is functioning.
Example: To turn the power off after 50 minutes when listening to FM 87.50 MHz
20:00 21:00
ON OFF
ON
SLEEP
OFF
22:00
Flashes
Press the SLEEP button repeatedly until the “SLEEP”indicator turns off.
The sleep timer is also canceled if the CD receiver’s power operation switch or the power operation switch on the
remote control unit is pressed, turning the system power off.
Cancelling the Sleep Timer
NOTE:
•If a several timer operations are set at once, the sleep timer has priority.
The sleep timer has priority for the off time. (The system operates as indicated by the bold lines.)
Order of priority of the sleep, everyday and once timers
Everyday or once timer set
Sleep timer set to 60 minutes
The unit remains in the standby
mode.
Even when the power was turned on with the timer, the power turns off if the remaining time of the sleep timer
reaches “00”before the off time set with the everyday or once timer is reached. If the everyday or once timer’s on time
is reached while the sleep timer is functioning, the everyday or once timer does not function.
When the setting times of the everyday and once timer overlap, the once timer has priority over the everyday timer and
the everyday timer will be canceled.

16
ENGLISH
ON / STANDBY
CD RECEIVER UD-M31
TONE/SDB
FUNCTION
MENU / SET
BAND
PHONES
VOLUME
+
-
1, 3 4
Example: Playing a disc containing 15 tracks and with a playing time of 62 minutes, 3 seconds, starting from the
first track
1Press the 5(open/close) button to open the disc
tray.
2Load the CD in the disc tray.
3Press the 5(open/close) button. The disc tray
closes.
•The display appears after several seconds.
4Press the 1/ 3(play/pause) button.
Normal Playback
11
PLAYING CDs
ON / STANDBY
CD RECEIVER UD-M31
TONE/SDB
FUNCTION
MENU / SET
BAND
PHONES
VOLUME
+
-
Interrupting playback temporarily
1/ 3(play/pause) button 2(stop) button
Press the 1/ 3(play/pause) button.
The “3”mark appears on the display, and
playback stops at the point where the button
was pressed.
Resuming playback
Press the 1/ 3(play/pause) button.
The “3”mark turns off on the display, and
playback resumes from the point where the
pause button was pressed.
Stopping playback
Press the 2(stop) button.
BAND
NOTES:
•When a disc is loaded, “00:00 ”is displayed on the
display for several seconds while the data on the
number of tracks and total playing time is being read
from the innermost side of the disc, after which the
number of tracks and total playing time appear.
•The CD SRS button of the cassette deck (DRR-M31)
will not function if pressed while the disc is being
read. Please press this button after the total playing
time has been displayed.
•If no disc is loaded, if the disc is upside down, or if the
data cannot be read properly due to scratches or dirt,
the display reads as shown below and the disc will
not play.

17
ENGLISH
(Using the remote control unit)
Example: Playing the 8th track
1Press the FUNCTION button repeatedly to select the CD operation.
2Press the button corresponding to the number of the track 8.
•“8”appears on the track number display and playback of track
number 8 begins.
•When the end of the track is reached, playback continues on the next track.
•To specify a track number of 11 or greater, say track 15, press then
, and to specify a track number of 20 or greater, say track 23, press
, , then .
To play track 20, press then .
•The system is in program play mode if “PROG”flashes in the display. To
cancel the “PROG”indication on the display, press PROG/DIRECT before
you input the desired track number.
10 + 10
3+ 10 + 10
5
+ 10
Various Playback Functions
TONE /SDB
REPEAT
CLEAR
DISC
SKIP
CALL
PROG/
DIRECT
RANDOM
EDIT
BAND
123
546
789
+1010
POWER
SYSTEM
VOLUME
RDS
PTY
GROUP
CT
PANEL
TUNING TUNING
ENTER
MEMORY
TITLE
/CHARACTER TIME
PRESET
SLEEP
TUNER
FUNCTION
DISPLAY
+
-
CD
CD-R MD
1
2
In addition to the regular playback, the UD-M31 also offers the following playback functions:
(1) Playing a specific track ………………………………………………………………………………
Direct Search
(Using the remote control unit)
1When the REPEAT button is pressed once, “RPT”“1 ”appears on the
display and the single track repeat mode is set.
2Use the 8and 9buttons to select the track to be repeated.
•When the end of the specified track is reached, playback starts over from
the beginning of that track.
•The single-track repeat mode can also be set by pressing the REPEAT
button once during playback.
•To cancel the single-track repeat mode, press the REPEAT button
repeatedly until the “RPT”indicator turns off.
TONE /SDB
REPEAT
DISC
SKIP
CALL
PROG/
DIRECT
RANDOM
EDIT
BAND
123
546
POWER
SYSTEM
VOLUME
RDS
PTY
GROUP
CT
TUNING TUNING
ENTER
MEMORY
TITLE
/CHARACTER TIME
PRESET
SLEEP
TUNER
FUNCTION
DISPLAY
+
-
CD
CD-R MD
2
3
1
(2) Playing a single track repeatedly …………………………………………………………………
Single- track Repeat
3Press the 1/ 3(play/pause) button to start playback.
(Using the remote control unit)
1When the REPEAT button is pressed twice, “RPT”“ALL”appears on
the display and the all-track repeat mode is set.
2Press the 1/ 3(play/pause) button to start playback.
•The all-track repeat mode can also be set by pressing the REPEAT button
twice during playback.
•To cancel the all-track repeat mode, press the REPEAT button to turn the
“RPT”indicator off.
•If the REPEAT button is pressed during programmed playback, the tracks
are played repeatedly in the programmed order.
TONE /SDB
REPEAT
DISC
SKIP
CALL
PROG/
DIRECT
RANDOM
EDIT
BAND
123
546
789
VOLUME
RDS
PTY
GROUP
CT
PANEL
TUNING TUNING
ENTER
MEMORY
PRESET
SLEEP
TUNER
FUNCTION
DISPLAY
+
-
CD
CD-R MD
2
1
(3) Playing all the tracks repeatedly ……………………………………………………………………
All-track Repeat
(Using the remote control unit)
1Press the PROG/ DIRECT button.
•Press the PROG/DIRECT button again to resume normal playback during the stop mode.
•To cancel the entire program, press the PROG/DIRECT button or cancel the program one by one using the CLEAR
button.
•If you program the wrong track, press the CLEAR button then program the right track. (The last track in the
program is erased each time the CLEAR button is pressed.)
•To confirm the programmed playing order, press the CALL button. The programmed playing order appears in the
display. Pressing the CLEAR button with a track number appearing in the display automatically erases that specific
track from Program Play.
B
RC-933
TONE /SDB
REPEAT
CLEAR
DISC
SKIP
CALL
PROG/
DIRECT
RANDOM
EDIT
BAND
123
546
789
+1010
POWER
SYSTEM
VOLUME
RDS
PTY
GROUP
CT
PANEL
TUNING TUNING
ENTER
MEMORY
TITLE
/CHARACTER TIME
PRESET
SLEEP
TUNER
FUNCTION
DISPLAY
+
-
CD
CD-R MD
TAPE
3
2
1
(4) Playing the tracks in a certain order ………………………………………………………………
Programmed Playback
3
Press the 1/ 3(play/pause) button to
start playback.
•The tracks are played in the
programmed order.
“PROG”lights
Press the number and +10 buttons to
select the track to be programmed.
•For example, to program the 3rd
track and the 12th track, press ,
, and .
2
+ 10
3
Displays when the 3rd track is set at
the first place
after 2 seconds
Displays the total number of
programmed tracks and total playing
time.
Displays when the 12th track is set at
the second place
after 2 seconds
Displays the total number of
programmed tracks and total playing
time.
2
Other operations possible during programmed playback:
Such operations as quick search, pause and skip monitor are also possible during programmed playback.
For the quick search function, press the automatic search reverse button ( 8) to move back to the beginning of the
track, then press it again while the time display reads “00:00”to move back to the beginning of the preceding track.
To move ahead to the beginning of the next track, press the automatic search forward button ( 9) regardless of the
time display.
NOTES:
•With this CD receiver, you can program up to 25 tracks.
•Programming is also possible with the disc tray open. In this case it is possible to program a track number not
included on the disc. But when the program is played, that track number will be skipped.
•The entire program is canceled when the 5(open/close) button is pressed.
•Set the stop mode when cancelling tracks from the program. To cancel the program mode, press the
PROG/DIRECT button.

ENGLISH
Press the automatic search forward button ( 9).
Press the automatic search reverse button ( 8).
(5) Moving ahead to the next track during playback ………………………………………………
Quick Search
•The track currently being monitored and the elapsed time for that track are indicated on the display.
•If the manual search forward button is held in until the end of the disc is reached, the stop mode is set.
TONE /SDB
REPEAT
PROG/
DIRECT
RANDOM
EDIT
BAND
POWER
SYSTEM
VOLUME
RDS
PTY
GROUP
CT
TUNING TUNING
ENTER
MEMORY
TITLE
/CHARACTER TIME
PRESET
SLEEP
TUNER
FUNCTION
+
-
CD-R MD
(7) Finding a certain spot on the disc while listening to the sound ……………………………
qqForward skip monitor
(Using the remote control unit)
During playback, press and hold in the manual search forward button ( 7) to skip through the disc in the forward
direction while listening to the sound.
Skip Monitor
wwReverse skip monitor
(Using the remote control unit)
During playback, press and hold in the manual search reverse button ( 6) to skip through the disc in the reverse
direction while listening to the sound.
•The track currently being monitored and the elapsed time for that track are indicated on the display.
•If the manual search reverse button ( 6) is pressed continuously, it will reach the beginning of the first track on
the disc. Release the manual search reverse button ( 6) to resume normal playback.
(6) Moving back to the beginning of the track during playback …………………………………
Quick Search
ON / STANDBY
CD RECEIVER UD-M31
TONE/SDB
FUNCTION
MENU / SET
BAND
PHONES
VOLUME
+
-
Automatic search reverse button ( 8) Automatic search forward button ( 9)
Manual search reverse button ( 6) Manual search forward button ( 7)
(Using the remote control unit)
•Use this function to skip through the disc while listening to the sound.
•When the desired spot is reached using the skip monitor function, release the manual search forward button ( 7) or
manual search reverse button ( 6) to resume normal playback from that point.
18
•If the RANDOM button is pressed while the repeat
mode is set, the tracks are each played once in
random order, then played again in another order,
and so on.
•The repeat mode is set to the all-track repeat mode
when the RANDOM button is pressed during single-
track repeat mode.
TONE /SDB
REPEAT
DISC
SKIP
CALL
PROG/
DIRECT
RANDOM
EDIT
BAND
123
POWER
SYSTEM
VOLUME
RDS
PTY
GROUP
CT
TUNING TUNING
ENTER
MEMORY
TITLE
/CHARACTER TIME
PRESET
SLEEP
TUNER
FUNCTION
DISPLAY
+
-
CD
CD-R MD
(8) Playing the tracks in random order ………………………………………………………………
•Use this function to play all the tracks on the disc once
in random order.
•In the normal playback mode, simply press the
RANDOM button to set random playback.
Random Playback
RANDOM button
(Using the remote control unit)
Edited Recording on Sides A and B of a Tape
This function allows edited recording according to the length of the tape. (This operation is only possible from the
remote control unit.)
Edited recording is a system function of the D-M31 series. This function can only be used in combination with the DRR-
M31.
•Use this function to efficiently edit the tracks on a CD according to the length (time) of the tape onto which you want
to record.
NOTES:
•Load a blank cassette tape onto which you want to record in the cassette deck with side A on the top before
starting the editing procedure. The tape is automatically wound to the beginning before recording starts.
•The editing mode is canceled when the CD receiver’s stop button is pressed.
•Note that even if the tape is slightly longer than the disc’s total playing time, it may not be possible to record all
the tracks on sides A and B because of the combination of tracks to be recorded on the different sides of the tape.
•When recording on an already recorded tape, if the tape is longer than the new recording, the previous recording
will remain at the end of side B, so erase the tape before starting.
•During edited recording, only the stop button, power operation switch, and TIME button for the CD player section
and the stop button and power operation switch for the cassette deck will function.
•Set the reverse mode on the cassette deck (DRR-M31) to or during edited recording.
•Edited recording does not function when you play a disc with more than 26 tracks.
(1) Recording the tracks in the same order as on the disc…………………………………………
Automatic Edited Recording
ON / STANDBY
CD RECEIVER UD-M31
TONE/SDB
FUNCTION
MENU / SET
BAND
PHONES
VOLUME
+
-
2, 3 5
1
TONE /SDB
REPEAT
CLEAR
DISC
SKIP
CALL
PROG/
DIRECT
RANDOM
EDIT
BAND
123
546
789
+1010
POWER
SYSTEM
VOLUME
RDS
PTY
GROUP
CT
PANEL
TUNING TUNING
ENTER
MEMORY
TITLE
/CHARACTER TIME
PRESET
SLEEP
TUNER
FUNCTION
DISPLAY
+
-
CD
CD-R MD
5
4
1
4
NOTES:
•The total remaining time cannot be displayed during the random playback mode.
•The random playback mode cannot be set during editing.

19
ENGLISH
Example: Recording a disc containing 16 tracks and a total playing time of 56 minutes on a C-60 cassette tape
1Press the FUNCTION button to set the CD mode.
FUNCTION
2Press the 5(open/close) button to open the disc
tray.
•Load the disc in the disc tray.
3Press the 5(open/close) button to close the disc
tray.
•The display appears after several seconds.
EDIT
4
Press the EDIT button on the remote control unit to
set the length of the tape. (The length is the total for
sides A and B.)
•For a 60-minute (C-60) tape, press the EDIT button
2 times.
•The display changes as shown below each time
the EDIT button is pressed.
(If the tape length has already been set once, the
display changes starting from that length.)
Inputting other tape sizes:
•To input other tape sizes, use the number and
+10 buttons when “C ---”is displayed.
After this, the remaining times for sides A and B are
displayed alternately for several seconds
5Press the 1/ 3(play/pause) button.
•The tape is automatically wound to the beginning
on the cassette deck, then recording starts.
Example: For a 60-minute tape
C-46 C-60 C-90 C---
Side A display - Tracks 1 to 9 will be
recorded on side A.
2 minutes 40 seconds remaining on
side A
Side B display - Tracks 10 to 16 will be
recorded on side B.
1 minute, 20 seconds remaining on
side B
(Cancelling the editing mode)
Track no. Elapsed time
•To set a time other than 46, 60 or 90, input the time when “C —” is displayed. The time can be set to up to 99
minutes input in the same way as when inputting track numbers for the CD direct search operation.
•When the 1/ 3(play /pause) button or 5(open/close) button on the CD receiver is pressed while the power is set to
STANDBY mode, the power automatically turns on and the play or open/close operation is performed.
•When the CD 1/ 3, TAPE 1or TAPE 0button on the remote control unit is pressed while the power is set to
STANDBY mode, the power automatically turns on and the play operation is performed.
•In the same way, when the tuner TUNER buttons on the remote control unit is pressed, the power turns on and the
corresponding station is tuned in.
12
AUTO ON FUNCTION
13
TROUBLESHOOTING
Check the following once more before assuming there is a problem with the system.
1. Are connections proper?
2. Is the system being operated as explained in the operating instructions?
If the system does not seem to be operating properly, check as shown on the table below. If none of these checks apply
to the problem, the system may be malfunctioning. Disconnect the power cord immediately and contact your store of
purchase.
Symptom Cause Remedy page
Power does not turn on
when power operation
switch is pressed.
•Power cord is not plugged into a
power outlet.
•Plug the power cord securely into
an outlet. 6
General
No sound is produced
from the speakers.
•VOLUME control is turned down.
•Headphones are connected.
•Speaker cords are not securely
connected.
•Set the control to an appropriate
Position.
•Disconnect the headphones.
•Connect securely.
7
7
6
Receiver section
No treble sound is
produced, or the position
of the instruments is
unclear.
•Speaker polarities ( <and >) are
inverted.
•Connect the speaker cords
properly.
6
A source other than the
desired one is heard.
•Function is not properly set. •Set the desired function using the
FUNCTION button.
7
Hissing sound is heard in
FM programs.
•Antenna direction is poor.
•Signals from the broadcast station
are weak.
•Change the direction of the
antenna.
•Install an outdoor antenna.
5
5
Hissing sound is heard in
AM programs.
•Noise from a TV or interference
from a broadcast station.
•Turn the TV off.
•Change the direction of the loop
antenna.
•Install an outdoor antenna.
–
–
5
Humming sound is
heard in AM programs.
•Signals on the power cord are
being modulated by the power
source frequency.
•Insert the power cord in the
opposite direction.
•Install an outdoor antenna.
–
5
CD player section
Total number of tracks
not displayed when disc
is loaded.
•Disc is loaded upside-down.
•Disc is dirty.
•Disc is not of the specified type.
•Reload the disc.
•Clean the disc.
•Replace with a disc of the
specified type.
10
10
–
Nothing happens when
operating buttons are
pressed.
Disc stops in the middle
of a track and will not
play properly.
•Disc is loaded upside-down.
•Foreign object on disc tray.
•Disc is dirty.
•Disc is scratched.
•Reload the disc.
•Remove the disc and the foreign
object.
•Clean the disc.
•Replace with an unscratched disc.
10
10
10
–
Sound is broken. •Dirt, fingerprints, spittle, etc. on
disc.
•Disc is scratched.
•Player is in an unstable place and
vibrates strongly.
•Clean the disc.
•Replace with an unscratched disc.
•Place the player in a stable place
with no vibrations.
10
–
–
Humming sound is
heard, when disc is
played.
•Signals on the power cord are
being modulated by the power
source frequency.
•Insert the power cord in the
opposite direction.
–

20
ENGLISH
14
SPECIFICATIONS
Receiver section
Reception frequency band: FM :87.50 MHz ~ 108.00 MHz
AM: 520 kHz ~ 1710 kHz
Reception sensitivity: FM : 1.5 µV/75 Ω/ohms
AM : 20 µV
FM stereo separation: 35 dB (1 kHz)
Rated output power: 22 W + 22 W (6 Ω/ ohms, 1 kHz, T.H.D. 10%)
Audio input / output jacks: AUX input/output jacks, TAPE PB/REC jacks,
PRE OUT (MONO)
3.5 mm headphones jack
CD player section
Wow & flutter: Below measurable limits (±0.001% W. peak)
Sampling frequency: 44.1 kHz
Optical source: Semiconductor
Clock, Timer section
Clock system: Power source synchronous system
Clock precision (per month): ± 30 seconds
Timer functions: Everyday timer (1 setting)
Once timer (1 setting)
Sleep timer (maximum 60 min.)
General
Power supply: AC 120 V, 60 Hz
Power consumption: 50 W
Maximum external dimensions: 210 (W) x 95 (H) x 325 (D) mm
(8-17/64”x 3-45/64”x 12-13/16”)
(including feet, controls and terminals)
Mass: 4.3 kg(9 lbs. 8 oz)
Remote control unit (RC-933)
Remote control system: Infrared pulse system
Number of buttons: 39
Power Supply: Two DC 1.5V R03/AAA batteries
Maximum external dimensions: 61 (W) x 188 (H) x 26 (D) mm
(2-13/32”x 7-13/32”x 1-1/32”)
Mass: 120 g (4.2 oz) (including batteries)
* Maximum dimensions include controls, jacks, and covers.
(W) = width, (H) = height, (D) = depth
•For improvement purposes, specifications and functions are subject to change without advanced notice.