Yamaha 01V Owner's Manual page 220

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Chapter 16—Using the Digital Inputs & Outputs
If the DIGITAL IN SYNC CAUTION option is turned on in the preferences ("Setting
01V Preferences" on page 203), a warning message appears if digital signals from the
Digital Stereo Coaxial In or Option I/O inputs are not wordclock synchronized with the
01V. If this message appears, configure the external device as wordclock master.
When an MY8-AE Option I/O card is installed, the OPTION SLOT switch is replaced
by four SLOT switches, as shown below.
These switches are used to select a pair of AES/EBU digital inputs as the wordclock
source.
When a CD player is connected to the Digital Stereo In, the only available sampling rate
is 44.1 kHz. When a DAT is connected, the sampling rate is determined by the DAT.
Some DATs record at a fixed sampling rate, while others allow the user to choose, typi-
cally between 44.1 kHz and 48 kHz.
01V—Owner's Manual
A highlighted switch with two diagonal lines like the one shown here indicates
that no wordclock is being received from the selected source, and the Fs win-
dow will probably show UNLOCK. Before using the 01V, correct the external
wordclock, or select another source. This condition typically occurs when the
external wordclock source is turned off, or the cable carrying the wordclock
signal has been disconnected.
This window displays the status of the 01V wordclock. 44.1k indicates
that the 01V is locked to a sampling rate of 44.1 kHz. When the word-
clock source is changed, the word LOCK appears, indicating that the 01V
is in the process of locking to the new source. If the external wordclock
source is lost, the word UNLOCK appears. This condition typically
occurs when the external wordclock source is turned off or the cable car-
rying the wordclock signal has been disconnected.