Tascam DA-78HR User Manual
8 - Synchronization with other DTRS units
48
TASCAM DA-78HR
standard sequence, working from the head of the
chain to the end.
chain to the end.
8.2.2 Setting machine ID
1
Press the
SHIFT
key so that the
SHIFT
indicator
is flashing, and press the
MENU
key, until the
counter shows
SYSTEM--
(
SYSTEM--
).
2
Press the
SUB MENU
key until the display
shows
id. sel. ;;
(
ID SEL xx
), where xx is the
current machine ID setting.
3
Use the ▲ and ▼ keys to change the value
between 1 and 15.
between 1 and 15.
NOTE
If you try to set the machine ID to anything other than
1, when no sync cable is connected, an error mes-
sage will be shown.
1, when no sync cable is connected, an error mes-
sage will be shown.
8.2.3 Master/slave settings (CHASE
mode)
Each unit with an ID greater than 1 is regarded as a
slave unit.
slave unit.
1
For each slave unit in the chain, press the
SHIFT
key so that the
SHIFT
indicator is flash-
ing, and press the
MENU
key, until the counter
shows
SYSTEM--
(
SYSTEM--).
2
Press the
SUB MENU
key until the display
briefly shows
TIME. MODE
(
TIME MODE
) and
then changes to show the current time mode
(which is either ABS—absolute or TC—time-
code).
(which is either ABS—absolute or TC—time-
code).
3
If any slave unit shows
TC
, use the ▲ and ▼
keys to change this to
ABS
.
4
On each slave unit, press the
CHASE
key. The
CHASE
indicator will start flashing.
5
Press any of the transport controls on the mas-
ter unit (machine ID 1). The slave unit(s) will
synchronize and follow the transport com-
mands of the master.
ter unit (machine ID 1). The slave unit(s) will
synchronize and follow the transport com-
mands of the master.
When a slave unit is locked to the master unit,
its
its
CHASE
indicator will light steadily. While
chasing, the transport keys of the slave unit are
disabled.
disabled.
6
To turn off chase mode on a slave unit, press
the
the
CHASE
key so that the
CHASE
indicator
goes off.
NOTE
When chasing, it may take some time before chase
lock is achieved. A slave unit cannot start recording
until it has achieved chase lock status.
lock is achieved. A slave unit cannot start recording
until it has achieved chase lock status.
8.3 Machine offset
It is sometimes necessary to offset a slave unit in the
chain relative to the master unit. This offset can be
set to sample accuracy to a maximum value of
chain relative to the master unit. This offset can be
set to sample accuracy to a maximum value of
±
two
hours.
NOTE
This offset is unrelated to timecode offset and refers
only to the machine offset when synchronized to
other DTRS units.
only to the machine offset when synchronized to
other DTRS units.
8.3.1 Setting machine offset
1
Press the
SHIFT
key so that the unit enters shift
mode (flashing
SHIFT
indicator).
2
Press the
AUTO IN/OUT (OFFSET)
key.
3
The display will show
ABS. OFST.
(
ABS
OFST
) and the current offset (if any has been
set).
4
Use the ▲ and ▼ keys to set the offset for the
slave unit, and the
slave unit, and the
SHIFT
ed ▲ and ▼ keys to
move the cursor to the different fields. The
OFFSET
key can also be used as a right cursor
key.
See 4.3.5, ““Left” and “right” keys” for details
of setting values in a time field.
of setting values in a time field.
5
You can also change the sign of the offset value
between by moving the cursor to the sign.
between by moving the cursor to the sign.
When a non-zero offset is set, the front panel
OFFSET
indicator will light.
NOTE
When a
non- zero off s et is set , the fr ont panel i n
di cator wi ll l ight .
If you change an offset value (timecode or ABS), any
punch points, location memories, etc. will be invali-
dated. For example, if you change the offset to
00:30:00.00 (30 minutes) from 00:00:00.00 (no off-
set), a punch point which was previously at
00:33:00.00 (33 minutes into the tape) will still have
the same value (00:33:00.00), but will now be only 3
minutes into the tape.
punch points, location memories, etc. will be invali-
dated. For example, if you change the offset to
00:30:00.00 (30 minutes) from 00:00:00.00 (no off-
set), a punch point which was previously at
00:33:00.00 (33 minutes into the tape) will still have
the same value (00:33:00.00), but will now be only 3
minutes into the tape.
8.3.2 Cancelling machine offset
To cancel machine offset, simply set the offset value
to 00:00:00.00.
to 00:00:00.00.
1
Enter the offset setting, as described above.