Switching Local On/Off | Roland ep-90/70 instruction

Connecting to MIDI Devices

Cautions when Connecting an External MIDI Device

Here we will explain the “Local On/Off” and “Omni On/ Off” settings that you need to be aware of when connecting the ep-90/70 to an external MIDI device.

■Disconnecting the ep-90/70’s keyboard and internal sound generator—Local On/Off

When the ep-90/70 is connected to a MIDI sequencer or the like, set it to Local Off.

As shown in the diagram, the data that is produced when you play the keyboard will reach the sound generator by two routes, (1) and (2), causing each note to be played in duplicate. To prevent this, select the Local Off setting to cut route (1).

fig.9-04.e

(1) Local On

		Sequencer
Sound	MIDI	MIDI
Sound	IN	OUT
Source		Memory
		Memory
	MIDI	MIDI
	OUT	IN

(2) Thru function On Each note played

is sounded twice

This sets it to Local On:

fig.9-05.e

Sound is emitted

Sound Source

Local On

This sets it to Local Off:

fig.9-06.e

No sound produced

Sound Source

Local Off

NOTE

Be aware that if you set your instrument to Local Off when no external MIDI device is connected, there will be no sound.

■Switching Local On/Off

Local On is set when the power is switched on.

While holding down the [Piano 1] button, [Piano 2] button, and [Harpsichord] button, the “B4” note to turn the setting On, or press the “C5” note to turn the setting Off.

→For the notes that correspond to each setting, refer to

“Functions Assigned to the Keyboard” (p. 31).

fig.9-07.e (While holding down three buttons)

Vibra-	Harpsi-
Piano 1 Piano 2 E.Piano phone	chord

While holding down three buttons

Local Off

Local On

B4 C5

Press

MEMO

If the ep-90/70 is connected to a Roland MT series (except MT-80s), it is not necessary to make the Local Off setting. When the power is turned on, the MT series will transmit a Local Off message. If you turn the power on in the order of first the ep-90/70 and then the MT series, the ep-90/70 will automatically be set to Local Off.

■Receiving on all MIDI channels—Omni On/Off

MIDI features sixteen MIDI channels, numbered 1–16. The connected devices must be set to use the same MIDI channels, otherwise no sound will be produced.

When set to Omni On, the ep-90/70 plays regardless of the MIDI channel on which the MIDI messages are received.

It is useful to turn Omni On when, for example, the MIDI In connector of the ep-90/70 is receiving music data in which the right-hand and left-hand parts are recorded on different MIDI channels.