8 - Synchronization with other DTRS units
48
TASC AM D A-78H R
standard sequence, working from the head of the
chai n to the en d.

8.2.2 Setting machine ID

1Press the SHIFT key so tha t the SHIFT indicator
is flashing, and press the MENU key, until the
counter shows SYSTEM--
(SYSTEM--).
2Press the
SUB MENU key until the displa y
shows
id. sel. ;; (
ID SEL xx), wher e xx is the
current machine ID setting.
3Use the ▲ and ▼ keys to change the value
betwe en 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 .

8.2.3 Master/slave setti ngs (CHASE

mode)

Each unit with an ID greater than 1 is regarded as a
slav e un i t.
1For each slave unit in the chain, press the
SHIFT key so that the SHIF T indicator is flash-
ing, and press the
MENU key, until the counter
shows
SYSTEM-- (SYSTEM--).
2Press the
SUB MENU key until the displa y
bri e f l y s h ows TIME. MODE (TIME MODE) and
then changes to show the current time mode
(which is either ABS—absolute or TC—time-
code).
3If any s l ave uni t sh ows TC, use the ▲ and ▼
keys to change this to ABS.
4On each slave unit, press the CHASE key. The
CHASE indicator will start flashing.
5Press an y of the t ransp ort cont rols on th e mas-
ter unit (machine ID 1). The slave unit(s) will
synchronize and follow the transpor t co m-
mands of the master.
When a slave unit is locked to the master unit,
its CHASE indicator will light steadily. While
chasing, the transport keys of the slave unit are
disabled.
6To turn off chase mode on a slave unit, press
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.
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 ± two
hours.
NOTE
This offset is unrelated to timecode offset and refers
only to the machine offset when synchronized to
other DTRS units.

8.3.1 Setti ng machine offset

1Press the SHIF T key so that the unit enters shift
mode (flashing SHIFT indicator).
2Press the AUTO IN/OUT (OFFSET) key.
3The display will show ABS. OFST. (ABS
OFST) and the current offset (if any has been
set).
4Use the ▲ and ▼ key s to se t the of fse t fo r the
slave unit, and the SHIFT
ed ▲ and ▼ keys to
move the cursor to the different fields. The
OFFSE T key can also be used as a right cursor
key.
See 4. 3.5 , ““ Left” and “r ight” ke ys ” for de tails
of setting values in a time field.
5You can also change the sign of the offset value
between by moving the cursor to the sign.
When a non-zero offset is set, the front panel
OFFSE T indicator will light.
NOTE
When a non-zero offset is set, the front panel indicator will light.
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 sa me val ue (00:3 3:00. 00), bu t will no w be onl y 3
minutes into the tape.

8.3.2 Cance ll ing machin e offset

To cancel machine offset, simply set the offset value
to 00: 00:00. 00.
1Enter th e offse t setti n g, as descr ibed a b ove .