Time Code Chase And Time Code Sync Playback; Sync Clock Switch Setting During Time Code Chase Operation And Variable Speed Control - Sony PCM-3348HR Operation Manual

7-2-11 Time Code Chase and Time
Code Sync Playback
Since time code chasing uses an external time code for
synchronization, and time code sync playback uses a
composite video signal for synchronization, it is not
possible to use both functions at the same time.
For details on time code sync playback refer to "3-7-8 Time
Code Sync Playback" (page 3-25) .
The synchronization accuracy of these two operations
is as follows.
Time code chasing
±1/100 frame ( ± 1 subframe)
Time code sync playback
VARI SYNC switch on the MC board set to ON:
0Hsync to –2Hsync
VARI SYNC switch on the MC board set to OFF:
±1 sector (1 millisecond when Fs = 48.0 kHz)
7-2-12 SYNC CLOCK Switch
Setting During Time Code
Chase Operation and
Variable Speed Control
SYNC CLOCK switch setting
In address mode
When the SYNC CLOCK switch on the PCM-3348HR
system control block is set to EXT, the vari-sync
function does not operate, and therefore the time code
chase function cannot be used. To use the
chase function in address mode, set the SYNC
CLOCK switch to INT or VIDEO.
In free mode
When the SYNC CLOCK switch is set to EXT or DI
and time code chase operation starts, during
synchronization it automatically switches to INT.
After synchronization with the external time code
signal it returns to EXT or DI.
Variable speed control function
In address mode
During time code chase operation, re-synchronization
is carried out each time there is a synchronization
discrepancy, and therefore until
operation is ended it is not possible to use the
speed control function on the RM-3348HR connected
to the slave unit.
In free mode
If the SYNC CLOCK switch is set to INT or VIDEO,
after synchronization to the external time code, you
can use the variable speed control function on the RM-
3348HR connected to the slave unit.
Chapter 7 Synchronized Operations
time code
the time code chase
variable
7-15