Why won't my Pioneer CDJ-400 - Cd/Media Player start playing when I insert a disc?
If your Pioneer CD Player doesn’t start playing even after inserting a disc, the auto cue function may be turned on. Press the AUTO CUE button to turn off the Auto Cue function.
What to do if the disc is not rotating when power is ON on my Pioneer CDJ-400 - Cd/Media Player?
If the disc in your Pioneer CD Player is not rotating when the power is ON, it might be because the disc rotation stops automatically if no operation has been performed for 100 minutes or more in pause mode. You can start playback from the first track by pressing the PLAY/PAUSE button. Alternatively, press the EJECT button to eject the disc.
Why is there no sound from my Pioneer CDJ-400 - Cd/Media Player CD Player?
If no sound is coming from your Pioneer CD Player, there might be several reasons. First, check if the output cables are correctly connected and not loose, referring to the installation instructions if needed. It could also be due to incorrect settings on your DJ mixer, so verify the switch positions and volume controls. Dirty pin plugs or amplifier terminals can also cause this, so clean them. Finally, ensure that the player is not in pause mode by pressing the PLAY/PAUSE button.
What to do if my Pioneer CDJ-400 - Cd/Media Player is producing distorted sound or noise?
If your Pioneer CD Player is producing distorted sound or noise, first, ensure that the connections are correct; connect to the audio mixer's LINE INPUT terminals and avoid MIC terminals. Also, check for and clean any dirt on the pin plugs and/or amplifier terminals. If the issue persists, it might be due to interference from a TV set. Try switching off the TV, moving the player away from the TV, or plugging the player into a separate outlet.
What to do if Pioneer CDJ-400 - Cd/Media Player CD Player playback immediately stops when started?
If playback on your Pioneer CD Player stops immediately after starting, or if the player pauses or stops during playback, the disc may have smudges. Clean the smudges from the disc and try playing it again.
Why won't my Pioneer CDJ-400 - Cd/Media Player CD Player eject the disc?
If your Pioneer CD Player disc doesn’t eject when you press the EJECT button, check if the power plug is disconnected from the outlet. If it is, connect the plug to a wall outlet.
Why can't I search MP3s on my Pioneer CDJ-400 - Cd/Media Player?
If you cannot search MP3s on your Pioneer CD Player, it might be because you're trying to search (fast-forward/fast-reverse) into a different folder. Track searching with MP3s is only possible within the same folder.
What to do if my Pioneer CD Player produces loud noise or stops playing with certain discs?
If your Pioneer CD Player produces loud noise or stops playing with certain discs, the disc may have a bad scratch or warp, in which case you should replace it. Alternatively, the disc might be extremely dirty, so try cleaning it.
Why is track search not finishing when the auto cue function is set ON on my Pioneer CD Player?
If track search is not finishing when the auto cue function is set ON on your Pioneer CD Player, it could be because the sound muted portion between selections is long, increasing the searching time. Also, if the point cannot be found within 10 seconds, the cue point is set at the track’s beginning. In both cases, you can press the AUTO CUE button to turn off the Auto Cue function.
Why doesn't the jog dial operate as desired on my Pioneer CD Player?
If the jog dial on your Pioneer CD Player is not operating as desired, the incorrect jog mode (VINYL/CDJ) may be set. Press the JOG MODE VINYL button to set the desired jog mode (VINYL or CDJ).
Covers electrical shock, no user-serviceable parts, and laser warnings.
Covers water, cleaning, heat sources, ventilation, power cord handling, and lightning storms.
Covers FCC and Canadian compliance statements.
Explains setting volume to safe levels to prevent hearing damage.
Covers FCC compliance, operating temperature, humidity, and installation location.
Describes Scratch Jog Effect, Digital Jog Break, Tempo Control, Master Tempo, Reverse Play.
Covers Jog Dial functions, Auto Cue, and Relay Play.
Explains Cue/Loop Memory, Seamless Loop, Reloop, and Beat Loop/Loop Divide.
Details Oil Damper Float, Multi Read, MP3 DJ Play, and CD-ROM/USB playback support.
Explains controlling the player via PC software.
Lists CD, CD-TEXT, CD-R, CD-RW, and their logos.
Details MP3 format requirements and file extensions.
Covers connecting and playing MP3 files from USB memory devices.
Details playing MP3 files from CD-ROMs, including format and folder structure.
Covers location, installation guidelines, and avoiding heat/humidity.
Details disc storage, cleaning discs, cleaning the player, and CD lens care.
Explains condensation effects and general disc handling tips.
Details audio and control connections to various Pioneer DJ mixers.
Explains connecting two units for automatic relay play.
Covers connecting to stereo amplifiers and components with digital inputs.
Details USB connection to computers and connecting the power cord.
Covers Power, Eject, Play/Pause, Reverse buttons and indicators.
Details Jog Dial, Tempo Control slider, Tempo Range, Master Tempo, and Jog Mode buttons.
Explains CUE/LOOP buttons, Rotary dial, HOLD, and SEARCH/TRACK SEARCH buttons.
Details Loop buttons, Scratch/Digital Jog effects, Source Select, Text/Utility, Time/Auto Cue buttons.
Describes USB port, Audio Out, Control, Digital Out connectors, and AC inlet.
Explains all indicators and displays (Segment, REMAIN, TEMPO, BPM, Playing Address, etc.).
Describes how to replace the jog sheet for customization.
Covers powering on, inserting discs, and standard ejection procedure.
Explains how to perform forced disc ejection and associated precautions.
Covers starting, stopping, pausing, and resuming playback.
Explains how to turn Auto Cue on/off and adjust its level.
Describes Pitch Bend, Scratch Play, Frame Search, and other jog dial uses.
Details Fast-forward/reverse, Super-Fast search, Track cueing, and Rotary search.
Explains Scratch Jog Effect (BUBBLE, TRANS, WAH) and Digital Jog Break (JET, ROLL, WAH).
Covers changing playback speed, tempo range selection, and Master Tempo function.
Details how to set, change, and use cue points in CDJ and VINYL modes.
Explains a procedure for mixing tracks and mentions Fader Start Play.
Covers creating loops, setting loop points, dividing loops, and exiting loop playback.
Details Fader Start Play, Scratch Play, Spin Play, and Reverse Play functions.
Explains how to record, recall, and delete cue and loop points.
Covers setting up relay play between two players and transferring data to/from USB devices.
Details how to set and save the MIDI channel for controlling the unit.
Lists the MIDI messages and their corresponding functions for various controls.
Provides a table of symptoms, causes, and remedies for operational issues.
Includes specific notes on disc compatibility, BPM measurement, and external effects.
Lists error codes, types, descriptions, and recommended actions.
Details system, audio, and accessory specifications.
Provides contact details for service in the USA and Canada.
Includes disclaimers regarding software, trademarks, and audio coding technology licenses.
Covers electrical shock, no user-serviceable parts, and laser warnings.
Covers water, cleaning, heat sources, ventilation, power cord handling, and lightning storms.
Covers FCC and Canadian compliance statements.
Explains setting volume to safe levels to prevent hearing damage.
Covers FCC compliance, operating temperature, humidity, and installation location.
Describes Scratch Jog Effect, Digital Jog Break, Tempo Control, Master Tempo, Reverse Play.
Covers Jog Dial functions, Auto Cue, and Relay Play.
Explains Cue/Loop Memory, Seamless Loop, Reloop, and Beat Loop/Loop Divide.
Details Oil Damper Float, Multi Read, MP3 DJ Play, and CD-ROM/USB playback support.
Explains controlling the player via PC software.
Lists CD, CD-TEXT, CD-R, CD-RW, and their logos.
Details MP3 format requirements and file extensions.
Covers connecting and playing MP3 files from USB memory devices.
Details playing MP3 files from CD-ROMs, including format and folder structure.
Covers location, installation guidelines, and avoiding heat/humidity.
Details disc storage, cleaning discs, cleaning the player, and CD lens care.
Explains condensation effects and general disc handling tips.
Details audio and control connections to various Pioneer DJ mixers.
Explains connecting two units for automatic relay play.
Covers connecting to stereo amplifiers and components with digital inputs.
Details USB connection to computers and connecting the power cord.
Covers Power, Eject, Play/Pause, Reverse buttons and indicators.
Details Jog Dial, Tempo Control slider, Tempo Range, Master Tempo, and Jog Mode buttons.
Explains CUE/LOOP buttons, Rotary dial, HOLD, and SEARCH/TRACK SEARCH buttons.
Details Loop buttons, Scratch/Digital Jog effects, Source Select, Text/Utility, Time/Auto Cue buttons.
Describes USB port, Audio Out, Control, Digital Out connectors, and AC inlet.
Explains all indicators and displays (Segment, REMAIN, TEMPO, BPM, Playing Address, etc.).
Describes how to replace the jog sheet for customization.
Covers powering on, inserting discs, and standard ejection procedure.
Explains how to perform forced disc ejection and associated precautions.
Covers starting, stopping, pausing, and resuming playback.
Explains how to turn Auto Cue on/off and adjust its level.
Describes Pitch Bend, Scratch Play, Frame Search, and other jog dial uses.
Details Fast-forward/reverse, Super-Fast search, Track cueing, and Rotary search.
Explains Scratch Jog Effect (BUBBLE, TRANS, WAH) and Digital Jog Break (JET, ROLL, WAH).
Covers changing playback speed, tempo range selection, and Master Tempo function.
Details how to set, change, and use cue points in CDJ and VINYL modes.
Explains a procedure for mixing tracks and mentions Fader Start Play.
Covers creating loops, setting loop points, dividing loops, and exiting loop playback.
Details Fader Start Play, Scratch Play, Spin Play, and Reverse Play functions.
Explains how to record, recall, and delete cue and loop points.
Covers setting up relay play between two players and transferring data to/from USB devices.
Details how to set and save the MIDI channel for controlling the unit.
Lists the MIDI messages and their corresponding functions for various controls.
Provides a table of symptoms, causes, and remedies for operational issues.
Includes specific notes on disc compatibility, BPM measurement, and external effects.
Lists error codes, types, descriptions, and recommended actions.
Details system, audio, and accessory specifications.
Provides contact details for service in the USA and Canada.
Includes disclaimers regarding software, trademarks, and audio coding technology licenses.
The Pioneer CDJ-400 is a compact disc player designed for professional DJ use, offering advanced functions and performance capabilities superior to traditional analog players. It supports playback of audio CDs, CD-R/CD-RW discs, and MP3 files from CD-ROMs or USB memory devices.
The CDJ-400 integrates a wide array of features to enhance DJ performance and creativity:
Scratch Jog Effect: This function introduces new scratch sounds beyond conventional scratching. It includes three distinct effects:
Digital Jog Break: This feature provides original sound effects for remixing. It offers three individual remix assist functions:
Jog Dial: A large 115 mm diameter jog dial provides enhanced handling.
Tempo Control: A 100 mm high-precision slider allows for free speed adjustment.
Reverse Play: Pressing the DIRECTION REV button enables playback in reverse.
CUE Functions:
CUE/LOOP Memory: An internal memory allows recording and recalling cue and loop points.
Real Time Seamless Loop: Simplifies loop setting and canceling. Loops can be set instantly during playback, and an ADJUST mode allows one-touch adjustments to the loop-out point.
RELOOP: Allows returning to the set loop position multiple times after canceling loop play.
Beat Loop/Loop Divide: Automatically sets a loop-out point based on the track's BPM and starts loop play. Repeated presses divide the loop, creating new rhythms.
Playing Address: A bar graph visually represents track playback progress, similar to checking a needle's position on an analog record. The graph flashes to indicate the track's end.
Fader Start: When connected to a Pioneer DJ mixer, the mixer's fader operation can initiate quick start and back cue.
Relay Play: Two CDJ-400 units can be connected for automatic relay play, where playback seamlessly transfers from one player to the other when a track ends.
PC Connection: Most button and slider functions can output signals to external devices, allowing control of Pioneer's "DJS" software or other computer applications. Audio from computer-played tracks can also be output from the CDJ-400.
General| Signal-to-Noise Ratio | 115 dB |
|---|---|
| Total Harmonic Distortion | 0.006% (JEITA) |
| USB Ports | 1 x USB-A |
| Jog Wheel Size | 115 mm |
| Hot Loop | Yes |
| Quick Return | Yes |
| BPM Counter | Yes |
| Slot-In CD Loading | Yes |
| MP3 Folder Search | Yes |
| Display | LCD |
| Power Supply | AC 220-240V, 50/60 Hz |
| Media Type | CD, CD-R, USB |
| Frequency Response | 4 Hz - 20 kHz |
| Weight | 2.7 kg |
| Jog Wheel Type | Touch-sensitive |
| Tempo Control Range | +/- 6%, +/- 10%, +/- 16%, WIDE |
| Playable File Types | MP3 |
| Audio Outputs | 1 x Stereo RCA |
| Dimensions | 217.9 mm x 296.3 mm x 107.5 mm |
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