Local Control; Clock - Yamaha Portatone PSR-640 Owner's Manual

MIDI Functions

Local Control

"Local Control" refers to the fact that, normally, the PSR-740/640 keyboard controls the
internal tone generator, allowing the internal voices to be played directly from the key-
board. This situation is "Local Control on" since the internal tone generator is controlled
locally by its own keyboard. Local control can be turned off, however, so that the key-
board does not play the internal voices, but the appropriate MIDI information is still
transmitted via the MIDI OUT connector when notes are played on the keyboard. At the
same time, the internal tone generator can respond to MIDI information received on chan-
nels set to the "XG/GM" mode via the MIDI IN connector. This means that while an
external MIDI sequencer, for example, plays the PSR-740/640 internal voices, an exter-
nal tone generator can be played from the PSR-740/640 keyboard.
1
Press the [FUNCTION] button.
2
Select "MIDI."
Use the data dial, the [+/YES] button or the [-/NO] button.
3
Press the [NEXT] button to display the MIDI screen.
4
Select "Local Control."
Use the data dial, the [+/YES] button or the [-/NO] button.
5
Press the [NEXT] button to display the Local Control screen.
6
Turn the Local Control on or off.
Use the data dial, the [+/YES] button or the [-/NO] button.

Clock

Reception of an external MIDI clock signal can be enabled or disabled as required.
When disabled ("INTERNAL"), all of the time-based functions (Auto Accompaniment,
SONG recording and playback, etc.) are controlled by its own internal clock. When
MIDI clock reception is enabled ("EXTERNAL"), however, all timing is controlled by
an external MIDI clock signal received via the MIDI IN terminal (in this case the PSR-
740/640 TEMPO setting has no effect). The default setting is "INTERNAL."
1
Press the [FUNCTION] button.
2
Select "MIDI."
Use the data dial, the [+/YES] button or the [-/NO] button.
132
• The default Local Control
setting (factory setting) is
"ON."