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En
25
Additional information
Additional information
Troubleshooting
! If something is wrong with this unit, check the following issues, and also access the Pioneer DJ site and check [FAQ] for [DJM-750MK2].
pioneerdj.com/support/
! This unit may not operate properly due to static electricity or other external influences. In such cases, disconnect the power cord and connect it
again to restore normal operation.
Problem Check Remedy
The unit does not turn on. Is the power cord properly connected? Connect the power cord to an AC outlet.
Sound is not output, or sound is too
small.
Is the input selector switch set to the proper
position?
Change the input source for the channel using the input selector switch.
(page 10 )
Are the connection cables properly connected? Connect the connection cables properly. (page 7 )
Are the terminals and plugs dirty? Clean the terminals and plugs before connecting them to the unit.
Is the [ATT.] for [MASTER OUT] set to [
–6 dB],
etc.?
Switch the [ATT.] switch for [MASTER OUT] on the [UTILITY] screen.
Sound is distorted. Is the level of sound output from the [MASTER]
channel appropriately set?
Adjust the [MASTER LEVEL] control so that the master channel level indicator
lights up around [0 dB
] at the peak level. (page 10 )
On the [UTILITY] screen, set the [ATT.] of [MASTER OUT] from [–6 dB] to
[–12 dB].
Is the level of sound input to each channel prop-
erly set?
Adjust the [TRIM] control so that the channel level indicator lights up at about
[0 dB
] at the peak level. (page 10 )
The crossfade function does not work. Are the [CROSS FADER ASSIGN (A, THRU, B)]
selector switches properly set?
Set the [CROSS FADER ASSIGN (A, THRU, B)] selector switches for the different
channels properly. (page 10 )
BEAT FX does not work. Is the effect channel selector switch set to the
proper position?
Turn the effect channel selector switch to select the channel to which you want
to apply the effect.
Is the [FX FREQUENCY] button set correctly? Press the [FX FREQUENCY] button for the band that you want to apply the effect
to, so that it lights.
SOUND COLOR FX does not work. Is the [COLOR] control set to an appropriate
position?
Turn the [COLOR
] control clockwise or counterclockwise. (page 11 )
Cannot use an external effector. Is the effect channel selector switch set to the
proper position?
Turn the effect channel selector switch to select the channel to which you want
to apply the effect.
Is the [SEND/RETURN ON/OFF] button set to
[ON]?
Press the [SEND/RETURN ON/OFF] button and set [SEND/RETURN] to [ON].
(page 12 )
Is the external effector correctly connected to the
[SEND] or [RETURN] terminal.
Connect the external effector to the [SEND] and [RETURN] terminals.
Is the mobile device correctly connected to the
mobile device connection terminal.
Connect the mobile device to the mobile device connection terminal and launch
a compatible application.
Is the [RETURN TYPE (AUX, INSERT)] selector
switch set correctly?
Set the [RETURN TYPE (AUX, INSERT)] switch to the correct position.
Is the [SEND/RETURN (1/4” JACK,
)] selector
switch set correctly?
Set the [SEND/RETURN (1/4” JACK, )] selector switch correctly.
Sound from the external effector is
distorted.
Is the external effector’s audio output level set to
an appropriate level?
Adjust the external effector’s audio output level.
Tempo (BPM) cannot be measured or
measurement value of tempo (BPM) is
implausible.
Is the audio input level too high or too low? Adjust the [TRIM] control so that the channel level indicator lights up at about
[0 dB
] at the peak level. (page 10 )
For some tracks, it may not be possible to measure the tempo (BPM). Use the
[TAP] button to input the tempo manually.
Measured tempo (BPM) differs from
tempo indicated on CD.
— The values may differ slightly due to the different ways in which the BPM is
measured.
MIDI control does not work. Are the MIDI settings properly set? To operate software with this unit, the MIDI messages on this unit must be
assigned to the software you are using. For the assignment method, see your
software’s operating instructions.
This unit is not recognized after it has
been connected to a computer.
Is the driver software properly installed on your
computer?
Install the driver software. If it is already installed, reinstall it.
Sound from the computer cannot be
output from this unit.
Are this unit and computer properly connected? Connect this unit and the computer directly using the included USB cable.
(page 7 )
Are the audio output device settings properly set? Select this unit with the audio output device settings. For instructions on making
settings for your application, see your application’s operating instructions.
Is the input selector switch set to the proper
position?
Set the input selector switch to the [
] position. (page 10 )
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