Yamaha S Rev1 Owner's Manual page 84

The following table outlines each step in the transition from wordclock lock to unlock.
Wordclock
Step Condition Source
Button
Lock = yes
1
Sync = yes
Lock = no
2
Sync = no
The INT 48K and WCLK IN buttons do not indicate whether or not the wordclock is
locked or synchronized and never appear with diagonal lines through them. You can
check the lock status of these sources by using the SREV1's FS LOCK indicator, or the
RC-SREV1's FS status indicator.
If a previously selected wordclock source is no longer available, for example, when an
I/O card is removed, the wordclock source button appears shaded. In this case, select
another wordclock source in order to use the SREV1.
Selecting the Wordclock Source
RC-SREV1
FS LOCK
FS Status
Indicators
Indicator
FS LOCK
48K
44.1K
FS LOCK
48K
44.1K
Flashing together
77
Notes
Normal condition
External source discon-
nected, etc., SREV1
muted
SREV1—Owner's Manual