Tascam RC-898 User Manual

Section 8.2 - Advanced timecode functions

8-8

The park position can be viewed, and set manually
in the following way:

1) From menu group 4, move the cursor to

Park

Posi

, and press

SELECT

2) If the cursor is moved to the time field, it can be

edited with the

and

DOWN

keys.

Alternatively, the numeric keypad can be used to
enter a numerical value directly, and entered with
the

SHIFT

ENTER/LOAD

combination. Any

values for hours and minutes which are entered
will be discarded.

The maximum value for the park position setting is
2 seconds minus 1 frame.

As well as the manual setting described above, it
is also possible to test the system and set this value
automatically:

1) From menu group 4, move the cursor to

Park

Posi

, and press

SELECT

2) Play and stop the master unit.

3) If chase mode is off on the slave DA-98, turn it

on.

4) Use the

DOWN

key to turn the

TEST

from

off

The DA-98 will now start to rewind so that the rel-
ative difference is zero. Wait until the DA-98 tape
has stopped before proceeding with the next
step.

5) Play the master unit.

The park position value shown in the display
screen will change as the park position is calcu-
lated. Wait until the value has stabilized before
proceeding to the next step.

6) Turn the

TEST

parameter from

off

using the

DOWN

key.

The value which has just been calculated will be
stored as the new park position. Lockups to time-
code should now take place quickly and easily.

8.2.9 Individual recording status while

chasing timecode

The default action for slave DTRS units is to

follow the recording status of the master. How-
ever, if DA-98s are being used as slave units, and
they are chasing using timecode rather than ABS
sync, it is possible to set them so that their record-
ing status can be turned on and off individually.
For further details regarding this function, see sec-
tion 10.7.11 of the DA-98 manual.

1) From menu group 4, move the cursor to

TcChs Rec

, and press

SELECT

2) Use the cursor keys to

enable

(allow

individual recording while chasing timecode)
or

disable

this facility (the slave follows

the master status for each machine in the
chain).

8.2.10 Video resolve

The timecode clock of a DA-98 may be set to

resolve to a video signal received at the unit’s
VIDEO IN terminal. This means that the time-
code frame boundaries will be aligned with the
frame boundaries as received in the video signal.

This is a completely different function to the syn-
chronization of the word clock to video (see 7.2.6,
“Clock selection”).

In addition, if video resolve is enabled, the unit
can be set to track the frame boundaries constantly
and rechase if it drops out of sync (re-sync), or can
be set to a “lock and forget” mode (free), in a sim-
ilar way to the rechase options available for time-
code (see 8.2.5, “Rechase mode”). In re-sync
mode, output will be muted while the unit changes
speed to match frame boundaries.

See section 10.6 of the DA-98 manual for further
details regarding this function.

P a r k

P o s i t i o n

M a c h i n e

T E S T

o f f

0 0 s 0 0 f

3 0 D F

P a r k

P o s i t i o n

M a c h i n e

T E S T

o f f

0 1 s 1 3 f

3 0 D F

T C

C h a s e

I n d i v .

R e c

e n a b l e

d i s a b l e

M a c h i n e