Other Troubleshooting, Symptom Cause Remedy

OTHER (TROUBLESHOOTING)

TROUBLESHOOTING

Incorrect operations can be mistaken as malfunctions. If you believe the unit is not operating correctly, consult the chart below. Sometimes incorrect operation may be due to a malfunction in another component. If the problem is not fixed, check the other components used with the player. If the problem still persists, contact your nearest Pioneer authorized service center or dealer for service.

Symptom	Cause		Remedy

Disc doesn’t eject even when EJECT	÷ Power plug is disconnected from outlet.	÷ Connect plug to wall outlet.
button is pressed.
Play doesn’t commence even when	÷ The auto cue function is set to on.	÷ Press the AUTO CUE button to turn off the
the disc is inserted.			Auto Cue function.
Playback immediately stops when	÷ Smudges on the disc, etc.	÷ Clean the smudges from the disc and then
started. During playback, the player			play it again.
pauses or stops.

Cannot playback MP3s.	÷ The files are in the wrong format.	÷ ☞P.5 “Playing MP3 Files.”

Cannot search MP3s.	÷ Attempted to search (fast-forward/fast-	÷ Track searching with MP3s are only possible
	reverse) MP3s into a different folder.		within the same folder.

No sound is audible.	÷ Output cables are connected incorrectly or	÷ Recheck connections. Refer to installation
	are loose.		instructions. (☞P. 8, 9)
	÷ Incorrect operation of DJ mixer.	÷ Check the settings of the DJ mixer switches
			and sound volume controls.
	÷ Pin plugs and/or amplifier terminals are	÷	Clean away dirt.
	dirty.
	÷ Player is in pause mode.	÷ Press the PLAY/PAUSE button (6).

Sound is distorted, noise is output.	÷ Incorrect connections.	÷ Connect to audio mixer's LINE INPUT termi-
			nals. (Do not connect to MIC terminals.)
	÷ Pin plugs and/or amplifier terminals are	÷	Clean away dirt.
	dirty.
	÷ Interference is being picked up from a TV	÷ Switch OFF TV set, move player away from TV
	set.		set or plug the player into a separate outlet.

With certain discs, loud noise is	÷ Disc has a bad scratch or warp.	÷	Replace disc.
produced or play stops.	÷ Disc is extremely dirty.	÷	Clean disc.

When the auto cue function is set	÷ If the sound muted portion between	÷ Press the AUTO CUE button to turn off the
ON, track search is not finished.	selections is long, searching time will be		Auto Cue function.
	long.
	÷ If the point cannot be found within 10
	seconds, the cue point is set at the track’s
	beginning.

Back cue function cannot be carried	÷ The cue point is not set yet.	÷	Set the cue point. (☞P. 17)
out even though the CUE button is	÷ The cue point is set to an MP3 file in a	÷ During playback of MP3s, back cue is possible
pressed in playback mode.	different folder.		only within the same folder.

Pressing the OUT/OUT ADJUST	÷ No cue points (loop-in points) have been set.	÷ Set a cue point. (☞P. 17)
button does not start loop play.	÷ In the case of MP3, loop cannot be per-	÷ During playback of MP3s, looping is possible
	formed if no loop-in point is located within		only within the same track that has a cue point
	the currently playing track.		(loop-in point) set.

The jog dial does not operate as	÷ Incorrect jog mode (VINYL/CDJ) is set.	÷ Press the JOG MODE VINYL button to set the
desired.			desired jog mode (VINYL or CDJ).

The picture of the TV screen is	÷ Interference is being picked up from the CD	÷ Turn off POWER switch of the player, or move
fluctuated or FM broadcast is	player.		the player away from the TV or tuner.
interfered with noise.

The disc is not rotating when power	÷ The disc rotation stops automatically if no	÷ Playback can be started from the first track by
is ON.	operation has been performed for 100		pressing the PLAY/PAUSE button (6). Press
	minutes or more in pause mode.		the EJECT button to eject the disc.

÷Static electricity and other external effects may cause this unit to malfunction. In this case, set the POWER switch to OFF, then switch it on again after the disc has come to a complete stop.

÷This unit cannot playback unfinalized (partial discs) CD-R or CD-RW discs.

÷Irregularly shaped discs cannot be played on the CDJ-400 (as it may result in breakage or accidents). Please use only standard circular 12 cm discs.

÷The BPM value measured by the CDJ-400 may differ from the BPM value recorded on a CD or from our DJ mixer, but this difference is a result of differences in the BPM value measurement method; not a result of a fault with the player.

÷When playing CD-R/RW discs, the performance rate may drop due to quality of the recorded data.

English

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CDJ-400 specifications

The Pioneer CDJ-400 is a groundbreaking digital media player that has significantly shaped the landscape of DJing since its release. It combines advanced technology, user-friendly features, and compatibility with various audio formats, making it a popular choice among both novice and professional DJs.

One of the standout features of the CDJ-400 is its ability to play multiple audio formats, including MP3, WAV, and AAC files. This flexibility allows DJs to mix and match tracks from various sources, whether they come from CDs, USB drives, or even laptops through a FireWire connection. The USB connectivity enables easy access to music libraries, allowing for seamless transitions and virtually limitless track selection.

The CDJ-400 incorporates a 4.3-inch color LCD screen that displays crucial track information such as elapsed time, remaining time, and waveform graphics. This intuitive interface enhances a DJ's ability to visualize their mixes and make informed decisions on the fly. The player also features a jog wheel that is not only touch-sensitive but also allows for precise manipulation of tracks, whether for scratching or pitch bending.

Another notable feature is the built-in effects processor, which gives DJs the creative tools to enhance their performances. The CDJ-400 offers various effects such as looping, reverse play, and even a beat loop function, allowing for dynamic mixing possibilities. Additionally, the unit's MIDI control capability enables seamless integration with DJ software, expanding the range of performance options.

The unit’s compact design does not compromise on build quality. With a sturdy chassis and a layout that emphasizes functionality, the CDJ-400 is designed to withstand the rigors of regular use in club environments. Furthermore, its ergonomic setup facilitates quick access to essential controls, ensuring that DJs can stay focused on their performance without fumbling with settings.

The Pioneer CDJ-400 is a perfect bridge for DJs seeking to transition from traditional vinyl to digital formats. Its combination of advanced technology with ease of use makes it an invaluable tool for those looking to elevate their DJing skills. Overall, the CDJ-400 stands as a testament to Pioneer's commitment to innovation in the DJ industry, offering powerful features in a compact package.