Roland MMP-2 Trouble Shooting, Symptom Cause Remedy, Another patch Resetting Effect Parameters

Trouble Shooting

If the unit doesn’t work the way you think it should, check the items shown in the following table before you assume that there is a malfunction. If the cause of the problem is still unclear, contact your retailer or Roland Corporation’s Customer Service Center.

For other computer-related problems, please read “ReadMe” on the included CD-ROM.

Symptom	Cause	Remedy
Nothing appears on	The display contrast is too	Adjust the contrast of the LCD screen (p. 14).
the LCD screen.	dark or too light.
No sound.	The volume is turned	Check the [SENS] controls and the volume
	down.	levels for connected amplifiers, mixers, and
		other equipment (“Sensitivity (SENS)” p. 17).
	The microphone is not	Check the documentation for the microphone
	receiving the required	and make the phantom setting if necessary (p.
	power.	17).
	The audio input-source	Make settings that match the input jack and
	settings are different from	standard (“Audio Input Source” p. 26).
	the actual configuration.
	External malfunction	Check the cables, amp, mixer, and other
		equipment.
The volume of the	You could be using a	Use a connection cable that does not contain a
MIC IN sound is	connection cable that	resistor (such as one from the Roland PCS
too low.	contains a resistor.	series).
The output sound is	The switch setting for the	Set the [OUTPUT LEVEL] switch on the rear
too low or too loud.	output level is not	panel to match the destination device (p. 13).
	appropriate.
Effects are not	The unit is set to OFF or	Check the settings (“Using Effects” p. 19).
applied.	BYPASS.
	RESET was applied.	The RESET function changes the effect
		parameter settings so the most minimal effect is
		produced. Change the parameters or choose
		another patch (“Resetting Effect Parameters
		(RESET)” p. 15).
Changes in system	The power was turned off	When the [ENTER] button is illuminated, it
parameters are not	immediately after making	means there are changes that have not been
saved.	the changes.	saved. Before turning off the power, press the
		[ENTER] button to save such changes (p. 14).
I can't change the	The unit is already	The “DRIVER” setting parameter of MMP-2
“DRIVER” setting	connected to the computer	unit cannot be switched during the USB
parameter of	via USB.	connection of MMP-2 unit and computer exists.
MMP-2 unit.		Disconnect once and then change setting.
		(“MMP-2 settings” p. 30).
I changed the USB	The power was not cycled.	A change in the driver takes effect after you
driver, but the		switch off the MMP-2’s power, then turn it on
change does not		again (“MMP-2 settings” p. 30).
take effect.
LCD screen	Buttons were pressed in	The temporary distortion of image on LCD after
displays unstable	rough.	rough pressing is not because of malfunction.
image when		Please be careful to press buttons in moderate
buttons are pressed		pressure.
in rough.

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