Roland KF-7 owner manual Selecting the Transmit Channel Tx Channel, 156

Chapter 9 Connecting External Devices

Making the Settings

1.Switch to the Basic screen, or press the One Touch Program [Piano] button.

2.Touch <Functions>.

3.Touch <MIDI Setting> or <Program Change>.

4.Touch to make the setting for each item.

Touch <Exit> to return to the Functions screen.

■Selecting the Transmit Channel (Tx Channel)

Local On: The keyboard and internal sound generator are

connected.

fig.09-

Sound is emitted

Sound Generator

Local On

Local Off: The keyboard and internal sound generator are separated. No sound will be produced by the keyboard when it is played.

fig.09-

MIDI organizes things into “channels,” which are numbered from 1 through 16. Simply connecting a cable is not enough for communication to take place. The connected devices must be set to use the same MIDI channels. Otherwise, no sound will be produced, and no sounds can be selected.

Select the transmit channel (1–16) of the KF-7.

The channel setting is at “1” when the KF-7 is powered up.

If the keyboard has been split into right-hand and left-hand sections, messages from the left-hand section are fixed at “3.”

The KF-7 receives messages on all channels from 1 through 16.

■Disconnecting the Internal Sound Generator and

Keyboard (Local Control)

When connecting a MIDI sequencer, set Local Control to “OFF.” The setting is at “Local Control ON” when the KF-7 is powered up.

As illustrated, information describing what has been played on the keyboard is passed to the sound module over two different routes, (1) and (2). As a result, you hear overlapping or intermittent sounds. To prevent this from happening, route (1) must be disabled, by setting the unit to what is known as “Local Off.”

fig.09-

(1)Local On

			Sequencer
Sound	MIDI	MIDI
	IN	OUT
Generator
9			Memory
Chapter
	MIDI	MIDI
	OUT	IN
Each note played is sounded twice		(2)	Soft Tru On

No sound produced

Sound Generator

Local Off

→When connecting a unit in the Roland MT series, you don’t need to switch off Local Control. MT units transmit Local Off messages when their power is switched on. If you first switch on the KF-7, then the MT-series device, Local Control is automatically switched off on the KF-7.

■Sending Tone Change Messages (Program Change/Bank Select MSB/Bank Select LSB)

A Program Change is a message that means “change to the Tone of the specified number.” The device that receives this changes to the Tone of the corresponding number.

When you choose a Program Change message (Program Number), the Program Number will be transmitted to the MIDI device connected to the KF-7. The MIDI device that receives the Program Number changes the tone to the corresponding Program Number.

Normally, the Tone is selected from the 128 Tones available. Some MIDI devices, however, have more than 128 Tones. With such devices, the Tone is selected through a combination of Program Change messages and Bank Select messages. There are two parts of a Bank Select message: the MSB (Controller 0, with a value of 0–127) and the LSB (Controller 32, with a value of 0–127).

*Some MIDI instruments can’t handle Bank Select messages. Others can handle Bank Selects, but do not recognize the LSB part.

156