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REAR PANEL
CB
© O'S
(4)
(5)
the DM-80-L. The unit needs to be set to "LOCK" if the DM-80
System is to be synchronized to the SMPTE Time Code output by
an external device. While viewing all the indicators, adjust the
playback rate on the external device, and the DM-80-L's
REFERENCE SMPTE RATE knob until the "LOCK" LED lights.
e When the INTERNAL (UNLOCK) Indicator is Lighted
This indicates that the unit is in a state
whereby
it is not reliably locked
into
synchronization (UNLOCKed). While in this
condition,
synchronization
with other
devices cannot be achieved.
© EXTERNAL(LOCK)
O REPEAT
OcinteRNAL(UNLOCK)
When none of the 5 horizontally-aligned indicators are
lighted:
0000 0
l
UF
This means that the DM-80-L is not recognizing the SMPTE
Time Code. Synchronization signals (produced by the DM-
80-L's reference clock) are output from FOR DM-80 SYNC
OUT, however.
When any of the green indicators are lighted:
Oo*%*% 000
Oo Otkoo
Ooo
Ot
Oo
-
o
+
=
0
+
-
o
+
This means that the DM-80-L is in the process of getting into
sync with the SMPTE Time Code that is being input. Once
the unit gets a fix on the sync code, the INTERNAL (UNLOCK)
indicator goes out, and the EXTERNAL (LOCK) indicator
lights instead.
When either of the red indicators (UNLOCK at either left
or right) is lighted:
=
[°]
+
-
oO
kd
This means that the DM-80-L is receiving the SMPTE
signals, but the signals are either too slow (UNLOCK at left),
or too fast (UNLOCK at right) to achieve sync for the DM-
80 System.
You will need to adjust the REFERENCE SMPTE RATE knob
(2) until you have the appropriate frame rate. Additionally,
you may need to alter the playback speed on your tape
recorder until you get the "0" indicator on the DM-80-L to
light.
DM BUSS
SMPTE LTC
(6)
* VIDEO SYNC is sometimes referred to as HOUSE SYNC.
* SMPTE: Society of Motion Picture and Television Engineers.
* LTC: Longitudinal Time Code
e When the REPEAT Indicator is Lighted
The DM-80-L
is receiving SMPTE
LTC
signals that direct that the same single
frame be repeated (REPEAT status). In other
words, it is in the freeze-frame condition.
During this time aswell, the synchronization signals (produced
by the DM-80-L's reference clock) are output from FOR DM-
80 SYNC OUT. Throughout this period, playback on the DM-
80 System (the slave) will be stopped. As soon as the SMPTE
Time Code leaves the REPEAT state, and goes into playback,
the DM-80 System will begin playback while synchronized
with the time code.
O EXTERNAL(LOCK)
WOcnePeat
O INTERNAL(UNLOCK)
(4) FOR DM-80 SYNC OUT Terminals
Provide output of the clock which is used to create the sample
rate for the DM-80-8/4. Make sure you connect a cable so it
runs from one of these terminals to the VIDEO SYNC terminal
on the DM-80-8/4. You also will need to set the "Sampling
clock source" parameter on the DM-80 to "Video sync."
Since four FOR DM-80 SYNC OUT jacks are provided, four
DM-80-8/4s can be operated simultaneously.
(5) DM BUSS (OUT, IN) Connectors
These connectors provide for interfacing with the specialized
DM-80 System data buss. Depending on your specific system
configuration, you would connect a DM-80-8/4 (Multi-Track
Disk Recorder), a DM-80-R (Remote Controller), or DM-80-F
(Fader Unit).
(6) SMPTE LTC (OUT, IN) Jacks
These jacks accept the input, and provide output of SMPTE
Time Code (Longitudinal Time Code). Since four output jacks
are
provided,
four
DM-80-8/4s
can
be controlled
simultaneously.
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