The lightning flash with arrowhead symbol within the
equilateral triangle is intended to alert the user to the
presence of un-insulated “dangerous voltage” within the
product’s enclosure that may be of sufficient magnitude
to constitute a risk of electric shock.
The exclamation point within the equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the
literature accompanying this appliance.
CAUTION
FOR USA & CANADIAN MODELS ONLY
TO PREVENT ELECTRIC SHOCK DO NOT USE
THIS (POLARIZED) PLUG WITH AN EXTENSION
CORD, RECEPTACLE OR OTHER OUTLET
UNLESS THE BLADES CAN BE FULLY
INSERTED TO PREVENT BLADE EXPOSURE.
SAFETY INSTRUCTIONS
1. Read Instructions - All the safety and operating
instructions should be read before this product is
connected and used.
2. Retain Instructions - The safety and operating
instructions should be kept for future reference.
3. Heed Warnings - All warnings on this product and in
these operating instructions should be followed.
4. Follow Instructions - All operating and other
instructions should be followed.
5. Water and Moisture - This product should be kept
away from
direct
contact with
liquids.
6. Heat - Avoid placing this product to close to any high
heat sources such as radiators.
7. Ventilation - The appliance should be situated so
that it’s location or position does not interfere with
it’s proper ventilation. For example, the appliance
should not be situated on a bed, sofa, rug, or similar
surface that may block the ventilation opening; or,
placed in a builtinstallation, such as
bookcase or cabinet
that may impede the
flow of air through
the ventilation
openings.
8. Power Sources - This product should be connected
to a power supply only of the type described in these
operating instructions, or as marked on the unit.
9. Power Cord Protection - Power supply cords should
be routed so that they are not likely to be walked
upon or pinched by items placed on or against them.
When removing the cord from a power outlet be sure
to remove it by
holding the plug
attachment and
not by pulling on
the cord.
10. Object and Liquid Entry - Take care that objects do
not fall into and that liquids are not spilled into the
inside of the mixer.
11. Cleaning – The appliance should be cleaned only as
recommended by the manufacturer.
12. Non-use Periods – The power cord of the appliance
should be unplugged from the outlet when left
unused for long periods of time.
13. Damage Requiring Service - Only qualified
personnel should service this product. If you have
any questions about
service please contact
Numark at the
number(s) shown on
the back cover of this
manual.
14. Grounding or Polarization - Precautions should be
taken so that the grounding or polarization means
built into the CD player is not defeated.
15. Internal/External Voltage Selectors - Internal or
external voltage selector switches, if any, should
only be reset and re-equipped with a proper plug for
alternative voltage by a qualified service technician.
Do not attempt to alter this yourself.
WARNING: To reduce the risk of fire or electrical shock,
do not expose this appliance to rain or moisture.
Electrical equipment should NEVER be kept or stored in
damp environments.
DANGER: INVISIBLE LASER RADIATION WHEN
OPEN AND INTERLOCK FAILED OR DEFEATED.
AVOID DIRECT EXPOSURE TO BEAM.
CAUTION: This product utilizes a laser. Use of
controls or adjustments other than those specified
herein may result in hazardous radiation exposure.
SERVICE INSTRUCTIONS
• Disconnect power cord before servicing
• Replace critical components only
with factory parts or recommended
equivalents
• For AC line powered units - Before
returning repaired unit to user, use an
ohmmeter to measure from both AC plug
blades to all exposed metallic parts. The
resistance should be no more than
100,000ohms.
CDN-20S
NOTICE CONCERNING FCC REGULATIONS
This equipment generates and uses radio frequency
energy and may cause interference to radio and
television reception if you do not operate it in strict
accordance with the procedures detailed in this
OPERATING MANUAL.
This unit complies with Class B computing device rules
in accordance with the specifications in Sub-part J or
Part 15 of the FCC Rules, which are designed to provide
reasonable protection against such interference in a
residential installation. There is no guarantee, however,
that interference will not occur in a particular installation.
If the unit does cause interference to any radio or
television reception, try to reduce it by one or more of
the following means:
a) Reposition the other unit and/or its antennae
b) Move this unit
c) Move this unit and the other unit(s) further apart
d) Plug this unit into a different AC outlet so that it is
on a different circuit from the other equipment.
This note is in accordance with Section 15.838 of the
FCC Rules.
This unit does not exceed the Class B limits for
radio noise emission from digital apparatus set out
in the radio interference regulations of the
Canadian Department of Communications.
DOUBLE INSULATED - When servicing use only identical replacement parts
For 220-volt use in USA, use NEMA style 220-volt plug. For other countries use proper plug for local outlet.
LINE VOLTAGE SELECTION
1) The desired voltage may be set with the VOLTAGE SELECTOR switch on the
rear panel of the main unit, using a screw driver.
2) Do not twist the VOLTAGE SELECTOR switch with excessive force as this may
cause damage.
3) If the VOLTAGE SELECTOR switch does not move smoothly contact a qualified serviceman.
Please record the serial number of your unit as shown on the back of the chassis as well as the
name of the dealer from whom you purchased the unit. Retain this information and your original
purchase receipt for your records. Please return the enclosed warranty card to register your CD
player with us.
MODEL: __________________________PURCHASED FROM:_________________________
SERIAL NUMBER:___________________DATE OF PURCHASE:________________________
You have just purchased a dual CD player designed specifically for the professional DJ. This
unit has been designed to provide CD mixing with the same ease and creativity that you have
enjoyed with records. Please take a few moments to familiarize yourself with the CDN-20S by
reading the following information before attempting to operate the unit.
Once again, congratulations and thank you for making the CDN-20S your choice in
professional CD players.
FEATURES:
• Rubber Play and Cue Buttons
• Relay - Fader Start
• Digital Output
• Accurate Frame search
• Auto dead-space elimination
• +10 tracks skip search
• 20 tracks program play
• ± 12% Pitch adjust with display
• True Continuous Play
• Time Bar Display
• CDR and 8cm single CD compatible
• Loop Button
TABLE OF CONTENTS
Safety and Registration2
Introduction 4
Set-up Instructions & Connections5
Description of the Features
Remote Control Unit6
Display7
Transport7
Basic Operation
Play/Pause Cue, and Loop Operations8
Matching the Tempo9
Beat Matching Using Pitch Bend9
Example of Mixing10
Before Switching off the Power11
Troubleshooting Guide11
Specifications11
Warranty12
Typical connection with a mixer is illustrated right.
1. Connect the output connection cords from the CD Player to the
line inputs of your mixer.
2. Connect the remote control connection cable from the Unit A
connector on the main unit to the Unit A connector on the
remote control unit. Repeat for Unit B.
3. The output connection cords and the remote control
connection cables are supplied with the main unit. Be sure to
use the remote control connection cables, which have been
supplied. Use of another cable type might cause damage.
4. For fader start connect fader start cablesto both side of your CD player to a similarly equipped DJ
mixer, as in the top drawing.
MOUNTING YOUR CD PLAYER
1. Mount the units in your console or rack with 19” EIA rails
2. The transport should be mounted not to exceed an angle of 15 degrees.
3. Your CD player can be affected by excess vibration so mount the units in a
secure environment if possible.
1. PROGRAM - Depress this button and the unit will
stop and the program indicator will light. Select
each track to be programmed and press the
PROGRAM button between selections. You can
program up to 20 tracks. Press PLAY to start the
program. To exit and erase program hold the
program button down for more than 2 seconds while
the unit is stopped, open the disc tray, or turn off the
power.
2. CONT/SING - Will cause just a single track to play or
all tracks in order by pressing once or twice.
3. LCD DISPLAY - Indicates all the functions, as they
are occurring, with the CD. These functions are
explained in the next section.
4. TIME (Time Button) - The TIME button switches the
time display between elapsed playing time and
remaining time on the track.
5. OPEN/CLOSE (Disc Tray Open/Close) - Press to
load or eject the disc. Each press will open or close
the disc tray on the transport. NOTE: Tray will not
open unless the disc has been paused.
6. TRACK (Track Buttons) - These buttons are used
to select the track to be played.
7. Track 10 Button - This button is for quickly
advancing to higher tracks on a CD.
8. PITCH (Pitch Button) - This button activates the
Pitch Slider (14).
9. PITCH BEND (Pitch Bend Button) - When each of
the two CD players is playing a CD, the pitch bend
function allows the positioning of the bass beats to
be matched after the pitch of each disc is matched.
Either player can “catch up” or “fall back” to match
the other player. The pitch will automatically rise
while the + button is pressed (allowing “catch up”)
and return to the original pitch when the button is
released. The pitch will automatically drop while the
button is pressed (allowing “fall back”) and return to
the original pitch when the button is released. By
changing the pitch of one disc with respect to the other
in this way the beats can be matched.
10. SEARCH – Depress and hold the right button and the
CD will rapidly advance forward through the music.
The longer you hold it the faster it searches. The left
button searches backward through music already
played. When the CD is paused the cue point can be
adjusted by tapping either button.
11. LOOP - Used for repeating sections in the music. This
is not a seamless function.
12. CUE - Pressing the CUE button during play provides a
return to the position at which play was started. If
PAUSE is used before CUE, that will become the cue
point. Alternately pressing the PLAY button and the
CUE button allows the CD to be played from the same
position any number of times. The CUE LED will light
up from the time the CUE button is pressed until the CD
has reset to the position at which play was started.
Steady lighting of this LED indicates the ready
condition.
13. START/PAUSE (Play/Pause Button) - Each press of
the Play/Pause Button causes the operation to change
from play to pause or from pause to play.
14. PITCH SLIDER - The pitch can be changed up to +/12% by pressing the PITCH button so the PITCH LED
is lit, then moving the sliding fader. The pitch will not be
changed if the PITCH LED is off.
15. RELAY/FADER START – By pressing this button the
player will alternate playing from side to side or can be
activated by a mixer containing the fader start feature.
In continuous mode the relay feature will have the
player complete playing the full CD then switch to the
other side. In single mode the player will alternate after
each track. If fader start cables are attached to a fader
start mixer, then, the actions of the mixer can control to
CD player. Instructions for this should be found in the
mixer manual. Both functions are active simultaneously.
1. PLAY - Active while the unit is actually playing a CD.
2. PAUSE - Active when the unit is paused.
3. CUE - Flashing when the unit is setting a cue point.
Lit continuously when the unit is paused at a cue
point.
4. PROGRAM – On when a sequence of songs is
preprogrammed into the unit.
5. TIME MODE -
(Elapsed) is for showing time as it is taking place.
(Remain) shows how much time is left on a
particular track. This function is controlled by the
TIME BUTTON (4).
6. SINGLE - Shows when the unit is set to play just
one track at a time. When this is not lit the CD will
play continuously through all tracks. This function is
controlled by the SING/CONT BUTTON (2).
7. PITCH - Is lit when the PITCH BUTTON is active.
8. TIME BAR - Shows either time remaining or elapsed
depending on the setting of the TIME BUTTON (4).
9. PITCH - Shows the percentage change in pitch.
10. TRACK - Shows the track that the unit is playing
with.
11. MINUTES - Shows the minutes elapsed
or remaining depending on mode
setting.
12. SECONDS - Shows the seconds
elapsed or remaining depending on
mode setting.
13. FRAMES - The CD Player breaks down
a second into 75 frames for accurate
cueing. This shows the frames elapsed
or remaining depending on mode
setting.
15. DISC TRAY- Place your CD in here.
16. OPEN/CLOSE (Disc Tray Open/Close) - Press to
load or eject the disc. Each press will open or close
the disc tray on the transport. NOTE: Tray will not
open unless the disc has been paused.
17. POWER BUTTON - Turn on and turn off the
machine from this button. The unit should always be
shut down with this button first before any external
power is removed.
18. RCA AUDIO JACKS - Connect your CD player to
your mixer from this line level output.
19. VOLTAGE SELECTOR - Set this switch to the
voltage for your location.
20. POWER CORD - Plug your unit into a power outlet.
21. CONTROL CONNECTOR - Plug your control cables
for each unit into here and the back of the remote
unit.
22. DIGITAL OUTPUTS - The format is type 2, form 1,
also known as S/PDIF (Sony/Phillips Digital Interface
Format). In order to use the digital output you can
not use variable pitch slider and the pitch bend
buttons or loop. If you were able to adjust the pitch,
other devices will not read the digital output properly
because the sampling rate changes.
DESCRIPTION OF THE PLAY/PAUSE, CUE, AND LOOP OPERATIONS
PLAY and CUE
Pressing the “PLAY/PAUSE” button starts the disc.
Pressing the “CUE” button will reset the disc to the
last place where the disc was started. This is
called the cue point. By alternately pressing the
“PLAY/PAUSE” button and the “CUE” button, the
disc may be returned and played from the cue point
any number of times. This function is called back
cue.
PLAY, PAUSE and CUE
EDITING CUE POINT
When the search button is tapped while a
cue point is set, a new cue point can be
located. The CD player will repeatedly play
small parts of the CD as you move it to the
desired position. By pressing
“PLAY/PAUSE” then “CUE” you can confirm
that this new cue point is desirable
USING THE LOOP
This function is repeating certain areas of the CD. Such as vocal stabs or for allowing the beginning of a song repeat
itself so you may leave the DJ console and interact directly with your crowd. To set a loop start point just press the
“LOOP” button while the CD is playing when it reaches the desired start point. To start looping press the “LOOP” button
again when the desired loop
end point is reached. Looping
is not seamless on this unit.
When it reaches the end point
again it returns to the start point
and continues to repeat this
action. When the “LOOP”
button is pressed again the CD
will continue on when it gets to
the end point.
Match the tempo by monitoring the music of both PLAYER A and PLAYER B by ear and adjusting the pitch. When the
tempo of the music of the selected CD player is slow compared to the tempo of the other player, move the slider to the (+)
side and match the tempo. When faster, move the pitch slider to the (-) side. The following description is for the case of
matching the pitch of PLAYER B to the pitch of the music being played on PLAYER A.
Press PLAY/PAUSE to start PLAYER A
PLAYER A is playing
Listen to PLAYER B in your headphones
When PLAYER B is slow
compared to PLAYER A
speed up PLAYER B
Press PLAY/PAUSE to start PLAYER B
Both CD players are playing discs.
When PLAYER B is fast
compared to PLAYER A
slow down PLAYER B
BEAT MATCHING USING PITCH BEND
If you find the BPM’s (Beats Per Minute or Tempos) are the same, however, the drum beats are not matched you will
need to temporarily change the pitch. This description is for the case of matching the beat of PLAYER B to the beat of the
music being played on PLAYER A. (This procedure can be done on either PLAYER).
After matching the BPM’s adjust the pitch temporarily as follows:
When PLAYER B is ahead press the When PLAYER B is behind press the
The pitch changes automatically while the or button is being. The more you press the button the more you
change. Releasing the button results in a return to the original pitch. (So the BPM’s are once again the same.)
RELAY-FADER PLAY
To relay tracks:
Press the RELAY-FADER START button while CDs are in both sides of the unit. Put both sides in SINGLE play mode while learning
this function. Press play on PLAYER A of the unit. When that PLAYER A has finished play it will send a signal to PLAYER B to start
play. You will see PLAYER B start play and PLAYER A pause and cue to the beginning of the next track. When PLAYER B has
completed play PLAYER A will start.
For fader start:
Follow the directions for connecting your fader start mixer. Active the RELAY-FADER button. Following the directions in your fader
start mixer manual.
Note: In relay mode the play command is sent at the end of specified play. If the unit is in SINGLE mode the play command will start at
the end of the track. If the unit is in CONTINUOUS mode the play command will be sent at the end of the full CD. Two CDs will play
continuously, alternating from side to side. This feature will also work in program mode; however, if the sides are also in SINGLE
mode the same number of tracks programmed should be the same. Play will stop at the end of the last track.
EXAMPLE OF MIXING USING BOTH PLAYERS OF YOUR CD PLAYER
While playing a disc on PLAYER A load a disc into PLAYER B and select your next track, match its
pitch to the track playing on PLAYER A and when you are ready use the crossfader on your mixer to
fade from PLAYER A to PLAYER B.
When you have finished using the CD player, be sure that the disc tray is closed with the “OPEN/CLOSE” button before
switching off the power.
DO NOT switch off the power when
the disc holder is open.
Switch off the power after the
disc holder has been closed
with the “OPEN/CLOSE” button
TROUBLESHOOTING:
SymptomPossible CauseCorrective Action
The power fails to switch on when
the POWER switch is set to on
Disc play does not startThe disc is loaded upside down
No soundImproper output cable connections
Sound skipsThe CD player is subject to vibrations or
Programmed disc play will not
function
HumLoose cable connectionsFirmly connect all audio plugs
Poor power plug connection at the AC outlet
or IEC Power cord loose from rear of unit
The disc is too dirty
Improper amplifier operation
physical shock
The disc is too dirty
The CD player is in normal disk play modeHold down the Program button for 3 seconds
Insert the power plug firmly into the AC outlet
and make sure connection is good in unit rear
Reload the disc with the label side up
Clean the disc
Connect the output cables correctly
Check amplifier setup
Change the installation location
Clean the disc
then program the tracks
SPECIFICATIONS
TECHNICAL:
Quantization16-bit linear/channel, 3 beam laser
Oversampling rate8 times
Frequency response20Hz-20KHz
Channel separation86dB
T.H.D. + NOISE0.01%
S/N ratio (IHF-A)94dB
Output level2.0Vrms
Short access time
(Play next track)less than 1.7sec
Long access time
(Track 1 ->Track 20)less than 3sec
Start Timeless than 0.3 sec
Pitch control range+/-12%
Pitch bend+/-16%
Digital Output type 2, form 1, S/PDIF
Operating Temperature5-35 deg. C
Humidity25 to 85% RH (non-condensing)
Storage Temperature-20 to 60 deg. C
Dimensions:
Main Unit:482(W) x 88.8(H) x 264(D) mm (without feet)
19(W) x 3 1/2(H) x 10 3/8(D) inches (without feet)
Control Unit: 482(W) x 88.8(H) x 74(D) mm (without feet)
19(W) x 3 1/2(H) x 2 7/8(D) inches (without feet)
Weight:Player Unit: 5 Kgs., 11 lbs.
Control Unit: 2 Kgs., 4.4 lbs.
Power Supply: 115/230V AC, 50/60Hz
Power Consumption:25W
®
Professional Disc Jockey Products
LIMITED PRODUCT WARRANTY
1. What is covered and for how long? NUMARK INDUSTRIES LCC ("NUMARK") warrants to the original purchaser that NUMARK'S DJ mixers and amplifiers are
free from defects in material and workmanship under normal use and service for the period commencing upon the date of purchase from an authorized
NUMARK dealer and continuing for the following period of time after that date for (2) Years. The warranty is extended to (3) Years with the completion of the
warranty card provided that the warranty card is completed and returned within (30) days from the date of purchase. All other NUMARK products are warranted
for (1) Year including but not limited to CD players, turntables, preamplifiers, beatkeepers, equalizers, microphones, headphones, and all other accessories.
2. What is not covered? This Limited Warranty is conditioned upon proper use of the product by the purchaser.
This Limited Warranty does not cover: (a) defects or damage resulting from accident, misuse, abuse, neglect, unusual physical or electrical stress,
modification of any part of the product, or cosmetic damage; (b) equipment that has the serial number removed or made illegible; (c) all plastic surfaces
and other externally exposed parts that are scratched or damaged due to normal use; (d) defects or damage from improper testing, operation,
3. What are NUMARK'S obligations? During the applicable warranty period, NUMARK will repair or replace, at NUMARK'S sole discretion, without charge to the
4. What are the limits on NUMARK'S liabilities? THE WARRANTIES GIVEN IN THIS LIMITED WARRANTY, TOGETHER WITH ANY IMPLIED WARRANTIES
5. How does state law apply to this warranty? SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATIONS OF INCIDENTAL OR CONSEQUENTIAL
6. This Limited Warranty gives you specific legal rights. You may also have other rights, which vary from one jurisdiction to another.
maintenance, installation, adjustment, or service of the mixers; (e) crossfaders.
purchaser, any defective component part of the mixer. To obtain service under this Limited Warranty, purchaser must first contact NUMARK and obtain a return
authorization number ("RA#"). Purchaser must then return the mixer to NUMARK in an adequate container for shipping, accompanied by purchaser's sales
receipt or comparable proof of sale showing the date of purchase, the serial number of the product, and the seller's name and address. To obtain an RA# and
assistance on where to return the mixer, contact NUMARK customer service at 401-295 9000. Upon receipt, NUMARK will repair or replace the defective
products. NUMARK may, at NUMARK'S sole discretion, use rebuilt, reconditioned, or new parts or components when repairing any product or replace a
product with a rebuilt, reconditioned or new product. Repaired mixers will be warranted for a period equal to the remainder of the original Limited Warranty on
the original mixer or for (90) days, whichever is longer. All replaced parts, components, boards and equipment become the property of NUMARK. If NUMARK
determines that any mixer is not covered by this Limited Warranty, purchaser must pay all parts, shipping, and labor charges for the repair or return of such
mixer.
COVERING NUMARK MIXERS, INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE, ARE LIMITED TO THE DURATION OF THIS LIMITED WARRANTY. EXCEPT TO THE EXTENT PROHIBITED BY APPLICABLE LAW, NUMARK
SHALL NOT BE LIABLE FOR ANY SPECIAL, INCIDENTAL, CONSEQUENTIAL, INDIRECT OR SIMILAR DAMAGES, LOSS OF PROFITS, DAMAGES TO
PURCHASER'S PROPERTY, OR INJURY TO PURCHASER OR OTHERS ARISING OUT OF THE USE, MISUSE OR INABILITY TO USE ANY NUMARK
MIXER, BREACH OF WARRANTY, OR NEGLIGENCE, INCLUDING BUT NOT LIMITED TO NUMARK'S OWN NEGLIGENCE, EVEN IF NUMARK OR ITS
AGENT HAS BEEN ADVISED OF SUCH DAMAGES, OR FOR ANY CLAIM BROUGHT AGAINST PURCHASER BY ANY OTHER PARTY. THIS LIMITED
WARRANTY IS THE COMPLETE WARRANTY FOR NUMARK'S MIXERS, AND IS GIVEN IN LIEU OF ALL OTHER EXPRESS WARRANTIES. THIS
LIMITED WARRANTY SHALL NOT EXTEND TO ANYONE OTHER THAN THE ORIGINAL PURCHASER OF THIS PRODUCT AND STATES PURCHASER'S
EXCLUSIVE REMEDY. IF ANY PORTION OF THIS LIMITED WARRANTY IS ILLEGAL OR UNENFORCEABLE BY REASON OF ANY LAW, SUCH PARTIAL
ILLEGALITY OR UNENFORCEABILTY SHALL NOT AFFECT THE ENFORCEABILITY OF THE REMAINDER OF THIS LIMITED WARRANTY WHICH
PURCHASER ACKNOWLEDGES IS AND WILL ALWAYS BE CONSTRUED TO BE LIMITED BY ITS TERMS OR AS LIMITED AS THE LAW PERMITS.
This Limited Warranty allocates risk of product failure between purchaser and NUMARK, and NUMARK'S product pricing reflects this allocation of risk and the
limitations of liability contained in this Limited Warranty. The agents, employees, distributors, and dealers of NUMARK are not authorized to make modifications
to this Limited Warranty, or make additional warranties binding on NUMARK. Accordingly, additional statements such as dealer advertising or presentation,
whether oral or written, do not constitute warranties by NUMARK and should not be relied upon.
DAMAGES OR HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO PURCHASER.
RETURN INFORMATION
1. A Return Authorization number must be obtained from Numark through the address or phone numbers below.
2. A copy of the original sales receipt must also be included for the equipment to be repaired under warranty.
3. The faulty equipment must be packed in its original packaging.
4. One additional outer layer of packaging must be included to ensure product safety. Failure to do so may inadequately protect the equipment in transit
and, therefore, jeopardize the customer’s warranty.
5. Numark will not accept COD shipments and no call tags will be issued for merchandise return.
6. Numark will not return repaired merchandise to customers by priority service, unless by written request at the customer’s cost. Requests must be
submitted in writing with merchandise returned.
7. The defective Numark equipment should be sent, FREIGHT PREPAID with Return Authorization number clearly printed on the outer packaging and
original sales receipt enclosed to:
INDUSTRIES
Attention: Service Department
11 Helmsman Avenue
North Kingstown, RI 02852 USA