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COMPACT DISC PLAYER
REPRODUCTOR DE DISCOS COMPACTOS
CDJ-400
Operating Instructions
Manual de instrucciones


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Thank you for buying this Pioneer product.
Please read through these operating instruc-
tions so you will know how to operate your
model properly. After you have finished read-
ing the instructions, put them away in a safe
place for future reference.
In some countries or regions, the shape of
the power plug and power outlet may some-
times differ from that shown in the explana-
tory drawings. However the method of con-
necting and operating the unit is the same.
K015 En
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.
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.
CAUTION:
TO PREVENT THE RISK OF ELECTRIC
SHOCK, DO NOT REMOVE COVER (OR
BACK). NO USER-SERVICEABLE PARTS
INSIDE. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
IMPORTANT
D3-4-2-1-1_En-A
CAUTION
This product is a class 1 laser product, but this product contains a laser
diode higher than Class 1. To ensure continued safety, do not remove any
covers or attempt to gain access to the inside of the product.
Refer all servicing to qualified personnel.
The following caution label appears on your unit.
Location: Inside of the player
CLASS 1
LASER PRODUCT
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WARNING
This equipment is not waterproof. To prevent a fire
or shock hazard, do not place any container filled
with liquid near this equipment (such as a vase or
flower pot) or expose it to dripping, splashing, rain
or moisture.
D3-4-2-1-3_A_En
WARNING
The voltage of the available power supply differs
according to country or region. Be sure that the
power supply voltage of the area where this unit
will be used meets the required voltage (e.g., 230V
or 120V) written on the rear panel.
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Before plugging in for the first time, read the following
section carefully.
WARNING
To prevent a fire hazard, do not place any naked
flame sources (such as a lighted candle) on the
equipment.
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VENTILATION CAUTION
When installing this unit, make sure to leave space
around the unit for ventilation to improve heat
radiation (at least 5 cm at rear, and 5 cm at each
side).
WARNING
Slots and openings in the cabinet are provided for
ventilation to ensure reliable operation of the
product, and to protect it from overheating. To
prevent fire hazard, the openings should never be
blocked or covered with items (such as newspapers,
table-cloths, curtains) or by operating the
equipment on thick carpet or a bed.
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NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in
a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following measures:
­ Reorient or relocate the receiving antenna.
­ Increase the separation between the equipment and receiver.
­ Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
­ Consult the dealer or an experienced radio/TV technician for help.
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Information to User
Alteration or modifications carried out without
appropriate authorization may invalidate the user's
right to operate the equipment.
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CAUTION: This product satisfies FCC regulations
when shielded cables and connectors are used to
connect the unit to other equipment. To prevent
electromagnetic interference with electric appliances
such as radios and televisions, use shielded cables
and connectors for connections.
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Operating Environment
Operating environment temperature and humidity:
+5 ºC ­ +35 ºC (+41 ºF ­ +95 ºF); less than 85 %RH
(cooling vents not blocked)
Do not install this unit in a poorly ventilated area, or in
locations exposed to high humidity or direct sunlight (or
strong artificial light)
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If the AC plug of this unit does not match the AC
outlet you want to use, the plug must be removed
and appropriate one fitted. Replacement and
mounting of an AC plug on the power supply cord of
this unit should be performed only by qualified
service personnel. If connected to an AC outlet, the
cut-off plug can cause severe electrical shock. Make
sure it is properly disposed of after removal.
The equipment should be disconnected by removing
the mains plug from the wall socket when left
unused for a long period of time (for example, when
on vacation).
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CAUTION
The POWER switch on this unit will not completely
shut off all power from the AC outlet. Since the
power cord serves as the main disconnect device for
the unit, you will need to unplug it from the AC outlet
to shut down all power. Therefore, make sure the
unit has been installed so that the power cord can
be easily unplugged from the AC outlet in case of an
accident. To avoid fire hazard, the power cord should
also be unplugged from the AC outlet when left
unused for a long period of time (for example, when
on vacation).
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POWER-CORD CAUTION
Handle the power cord by the plug. Do not pull out the
plug by tugging the cord and never touch the power
cord when your hands are wet as this could cause a
short circuit or electric shock. Do not place the unit, a
piece of furniture, etc., on the power cord, or pinch the
cord. Never make a knot in the cord or tie it with other
cords. The power cords should be routed such that they
are not likely to be stepped on. A damaged power cord
can cause a fire or give you an electrical shock. Check
the power cord once in a while. When you find it
damaged, ask your nearest PIONEER authorized
service center or your dealer for a replacement.
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AC power cord
The type of cord which can be used depends on the power voltage in each region or coun-
try. Please make sure you use the correct cord due to the possibility of fire or other hazard
if used incorrectly (see below).
AC power cord and converter plug use
Region
Plug type
For European type region
Caution
Do not use this power cord set in Taiwan.
European two-pin plug
For Taiwan exclusively
Caution
For use in Taiwan only.
In other areas, please do not use.
Taiwanese two-pin
flat-bladed plug
When using this product follow the instructions
written on the underside of the unit, which
concern rated voltage, etc.
D3-4-2-2-4_En
FEDERAL COMMUNICATIONS COMMISSION DECLARATION OF CONFORMITY
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.
Product Name:
COMPACT DISC PLAYER
Model Number:
CDJ-400
Responsible Party Name: PIONEER ELECTRONICS SERVICE, INC.
Address:
1925 E. DOMINGUEZ ST. LONG BEACH, CA 90801-1760, U.S.A.
Phone:
1-800-421-1404


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BEFORE OPERATING (FEATURES)
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FEATURES
Designed for professional use by DJs, the CDJ-400 compact
disc player provides all the functions and performance re-
quired in disco clubs while offering performance, sound qua-
lity and functionality superior to analog players.
SCRATCH JOG EFFECT
Equipped with Scratch Jog Effect for new scratch sounds.
Equipped with three buttons [BUBBLE], [TRANS] and [WAH]
for new scratch sounds. Effects that are different from the nor-
mal scratch sound can be obtained, broadening the possibili-
ties of your DJ play.
DIGITAL JOG BREAK
Equipped with Digital Jog Break for original sound effects.
Individual remix assist functions [JET], [ROLL] and [WAH]
have been provided individually in three buttons. By choosing
a function and operating the jog dial in time with the music, a
new remix world can be experienced.
JOG DIAL
The large 115 mm diameter jog dial enables better handling
than an analog turntable.
I PITCH BEND
This function changes the music tempo depending on the di-
rection and speed the jog dial is rotated.
I SCRATCH PLAY
In the VINYL mode when the surface of the jog dial is pressed
playback is discontinued and then continues according to the
direction and speed the dial is rotated.
I FRAME SEARCH
Moves the pause position in frame units (1/75 sec) when the
jog dial is rotated in the pause mode.
I SUPER-FAST SEARCH
By turning the jog dial while holding down the manual search
button or the track search button, disc search can be per-
formed faster than normal search or track search functions.
TEMPO CONTROL
100 mm long high-precision slider allowing free speed adjust-
ment.
With a digital display calibrated in 0.02 % units (within a ±6 %
range), tempo adjustments can be made more easily and ac-
curately.
I TEMPO CONTROL RANGE
The maximum variable range can be set to four variable
ranges; ±6 %, ±10 %, ±16 %, WIDE, to provide easier operation
environment.
I MASTER TEMPO
Maintains the same pitch of sound while changing the music
tempo.
REVERSE PLAY
When the reverse button (DIRECTION REV) is pressed so that
the button's indicator lamp lights, play is performed in the re-
verse direction.
CUE
I BACK CUE
After storing cue points in memory, press the CUE button
while playing a track to return and start from the stored cue
point.
I AUTO CUE
Skips the non-recorded part at the top of a track and automati-
cally enters stand-by mode at the track's starting point, allow-
ing playback to begin instantly when the PLAY/PAUSE button
(
6) is pressed.
I CUE POINT SAMPLER
Playback can be started at one touch from a stored cue point,
convenient for confirming start points and as sampler.
CUE/LOOP MEMORY
This player is equipped with an internal memory that permits
the recording of cue point or loop point; the recorded points
can later be recalled as desired.
REAL TIME SEAMLESS LOOP
This function simplifies the setting and canceling of loops.
The loop can be set at the very instant the track is being
played. By setting a loop just before the end of the track, the
track can be made so that it doesn't stop. In addition, an
ADJUST mode has been added to enable one-touch adjust-
ments to the loop-out point, thereby facilitating the loop op-
eration.
RELOOP
Allows returning to the set loop position any number of times.
Press the RELOOP/EXIT button after canceling loop play to
return to the loop start position. By using the loop ON and OFF
combined with the rhythm of the track, new sound effects can
be created.
BEAT LOOP/LOOP DIVIDE
Automatically sets a loop-out point according to the track's
BPM and starts loop-play. Each additional time the button is
pressed, the loop is divided and a new rhythm produced.
PLAYING ADDRESS
The bar graph provides a visual reference of the track play-
back progress that enables the user to visualize the current
playback position, in the same way as is done with an analog
record by checking the position of the needle. The current po-
sition can be confirmed by the length of the graph, and in ad-
dition, the graph flashes to notify the ending of the track.
FADER START
When a Pioneer DJ mixer (sold separately) is connected, the
mixer's fader operation can be used to perform quick start
and back cue.
RELAY PLAY
Two CDJ-400 units can be connected in tandem to perform
automatic relay play.
When track playback stops on one of the players, the standby
mode of the other player is released and playback begins au-
tomatically.


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BEFORE OPERATING (FEATURES)
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CONTENTS
BEFORE OPERATING
FEATURES ................................................................... 3
DISCS USABLE WITH THIS UNIT .............................. 5
CAUTIONS REGARDING HANDLING ........................ 7
CONNECTIONS ............................................................ 8
PANEL FACILITIES .................................................... 10
OPERATIONS
DISC LOADING/UNLOADING ................................... 13
DJ PLAYER OPERATIONS ........................................ 14
Auto cue function ................................................ 14
Starting playback ................................................. 14
Resume function .................................................. 14
To stop playback .................................................. 14
To temporarily interrupt playback ..................... 14
Jog dial functions ................................................ 15
Fast-forward/fast-reverse ................................... 15
Track cueing ......................................................... 15
Rotary seach ........................................................ 15
Change playback speed ...................................... 16
Applying master tempo ...................................... 16
Scratch Jog Effect ............................................... 16
Digital Jog Break ................................................. 16
Cue point settings ............................................... 17
Mixing different tracks ........................................ 17
ADVANCED OPERATIONS ....................................... 18
Loop playback ...................................................... 18
Fader start playback ............................................ 18
Scratch play ......................................................... 18
Spin play ............................................................... 18
Reverse play ......................................................... 18
Cue point/loop point memory ............................ 19
Relay play using two players ............................. 19
Writing and reading data .................................... 19
MIDI SETTING ............................................................ 20
OTHER
TROUBLESHOOTING ................................................ 21
SPECIFICATIONS ....................................................... 22
OIL DAMPER FLOAT
OIL DAMPER FLOAT construction helps resist shakes and im-
pacts.
This unit features an OIL DAMPER FLOAT design, making it
harder for distortions and sound breakup to occur due to im-
pacts from operation and vibrations from the floor.
MULTI READ
Supports playback of CD-R and CD-RW discs. (Some discs
may not replay properly, however, due to certain special
characteristics of some discs and recorders, as well as due to
dirty or damaged discs.)
MP3 DJ PLAY
MP3 files recorded on CD-ROM or USB memory device can be
played with DJ functions.
PC CONNECTION
Virtually all the button and slider functions of the CDJ-400 can
be output to external devices.
These signals can then be used to control Pioneer's own DJ
software "DJS" as well as other computer software applica-
tions. In addition, music tracks played on the computer can be
output as audio from the CDJ-400.
Disclaimer
¶ Microsoft and Windows are registered trademarks of Microsoft
Corporation, registered in the U.S. and other countries.
Apple and Mac OS are trademarks of Apple Inc., registered in the
U.S. and other countries.
¶ The typefaces included herein are partially developed by
DynaComware Taiwan Inc.
¶ ASIO is a registered trademark of Steinberg Media Technologies
GmbH.


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BEFORE OPERATING (DISCS USABLE WITH THIS UNIT)
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DISCS USABLE WITH THIS UNIT
Types of discs playable on this unit
÷ The following marks and logos are displayed on disc la-
bels, packaging, or jackets.
Types and Logos of playable discs
CD
CD-TEXT (Note 1)
CD-R (Note 2)
CD-RW (Note 2)
Note 1) Regarding TEXT display:
The number of characters that can be displayed is up to 48.
When a display exceeds eight characters in length, the display
will scroll. Only alpha-numerics and a limited number of
symbols can be displayed (
P.12).
Note 2) CD-R/CD-RW discs:
This player supports playback of CD-R/CD-RW discs recorded
in audio CD format or MP3.
* For details, consult the Operating Instructions for your re-
corder.
Notes:
¶ Some CD-R/CD-RW discs recorded on standalone record-
ers or computer drives may not be playable back on this
player, due to a variety of reasons, including disc character-
istics, scratches, dirt, player lens dirt or condensation, etc.
¶ Some discs recorded on computer drives may not be
playable on this player, depending on the recording appli-
cation used, its settings, and operating environment. Be
sure to use the correct formatting for the discs used. For
details, consult the application author.
¶ This unit cannot play partially recorded CD-R or CD-RW
discs that have not been finalized.
¶ For detailed information regarding the handling of CD-R/
CD-RW discs, consult the handling precautions supplied
with each disc.
I Regarding CD-R/RW discs
Due to the unique construction of CD-R/RW discs, leaving
them for extended periods of time in the pause (or cue
standby) mode at a single point may result in the discs' be-
coming difficult to play at that place. The same symptom may
also occur if the loop function is used to play back a single
point on the disc excessively.
As a result, users are advised to construct backup archive
discs when playing discs containing important data.
I About DualDisc playback
This product is designed to conform to standards for music
CDs. No warranty is made for operation or performance when
used with discs not conforming to such music CD standards.
Playing MP3 files
MP3 files may be found in two formats: Constant Bit Rate (CBR) and Variable Bit Rate (VBR). This component supports playback
and DJ play with both CBR and VBR type MP3 files, but in comparison with CBR files, files recorded in VBR format will experience
slower search and super-fast search speeds. As a result, when operating speed is most important, the use of the CBR recording
format is recommended for MP3 files.
MP3 files must follow the format requirements listed below.
MP3 format
MPEG-1
MPEG-2
ID3 tag
File extension
Supports Audio Layer-3 sampling frequency 32 kHz, 44.1 kHz, 48 kHz,
Bit Rate 32 Kbps to 320 Kbps.
Supports Audio Layer-3 sampling frequency 16 kHz, 22.05 kHz, 24 kHz,
Bit Rate 16 Kbps (stereo) to 160 Kbps.
Supports ID3 Vers. 1.0/1.1/2.2/2.3/2.4. Displays title, album, artist.
Only alpha-numerics and a limited number of symbols can be
displayed.
.mp3, .MP3, .mP3, .Mp3