Yamaha PSR-48 Authorized Product Manual page 54

6. External/ Internal Clock
Selection
This function determines whether the
PSR-48 rhythm and accompaniment
timing is controlled by the PSR-48's
own internal clock or an external MIDI
clock signal received from external
equipment connected to the MlDI IN
connector. The Clock Mode is
automatically set to INTERNAL when
the power is initially turned ON.
To synchronize playback of an
*
external sequencer or rhythm
programmer to the PSR-48, for
example, set this function to
INTERNAL and make sure that the
external device is set up to receive
EXTERNAL clock data.
To synchronize the PSR-48 to
*
playback of an external sequencer or
rhythm programmer, set this function
to EXTERNAL.
NOTE:
If the clock mode is set to ETERNAL and a
MIDI clock signal is not being received from an
external source, the PSR-48 rhythm,
accompaniment and other clock-dependent
features will nor operate.
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