Echo Back - Yamaha O2R Owner's Manual

Specifications 207
If parameter change reception is ON and a parameter request is received on
the specified MIDI channel, the contents of the corresponding parameter
will be transmitted on the specified MIDI channel regardless of whether
transmission is ON or OFF.
If parameter change reception is ON and a parameter change is received
on the specified MIDI channel, the contents of the corresponding
parameter will be modified.
Transmission of KEY REMOTE parameter changes can be turned ON or
OFF using the "Preferences" display function (see "Preferences" on page
162 of the User's Guide) independently of other parameters. This is used
only in special circumstances such as when externally monitoring key
operations. Normally it should be left OFF.
2-3. Active sensing, MIDI reset
If, after receiving Active Sensing, no messages are received for an
interval longer than 300 ms, or when MIDI Reset is received, only the
running status will be cleared.
Active Sensing is transmitted.
2-4. Quarter-frame messages
MIDI lime Code Quarter-frame messages are received at the MTC
connector.

3. ECHO BACK

If ECHO is turned ON, the Program Change messages will be
transmitted immediately after being received.
4. Transmission Condition
Digital Recording Console 02R User's Guide