68
Using time data (continued)
To externally lock the time code
Follow the steps below.
1
Turn the POWER/MODE switch to ON.
2
Set TCG on the setting menu RECORDING
SETUP screen to FREE RUN.
3
Use the COUNTER button to set TC display.
4
Supply a phase-relationship reference
time code (that conforms to the time
code requirements) and reference video
signals to the TC IN/OUT and GENLOCK IN
connectors, respectively.
• Now the built-in time code generator is locked to
the reference time code.
• When locked to an external time code generator,
the time code is at all times locked to the external
time code, which is displayed as a highlighted
value on the counter indicator. Do not engage the
recording mode during the few seconds it takes
for the sync generator to stabilize.
• Once a slave relationship is established, the TC
IN/OUT and GENLOCK IN connectors stay in
slave status.*
· When TC PRESET is performed.
· When the REC SIGNAL option in the SYSTEM
SETUP screen is set to 1394.
· The power is turned off.
· When the TC MODE menu option is used to
switch between DF and NDF.
· When the TCG menu option is set to REC
RUN.
· When REC FORMAT and CAMERA MODE
have been switched.
* The slave function is a state whereby the unit’s
internal time code generator is locked to and
progresses with an externally input time code,
and continues to progress after input of the
external time code has stopped.
Setting the user bits when the time code is
externally locked
To externally lock user bits, set the setting menu
UB MODE (RECORDING SETUP screen) to EXT.
Regardless of an FREE RUN or REC RUN setting,
the time code is slaved to user bit values input to
the TC IN/OUT connector.
• “Time data overview” (Page 61) ·
“Setting user bits” (Page 62)
To unlock the externally locked time code
Discontinue external time code supply, then set the
setting menu TCG (RECORDING SETUP screen)
to REC RUN.
External synchronisation of the camera when
the time code is externally locked
When the time code is externally locked, the
reference video signals input through the
GENLOCK IN connector gen-lock the camera.
•
To lock other devices externally to the AG-
HPX255P/EN, as the master device, make
sure that the other devices are in the same
camera mode as the AG-HPX255P/EN. Note
that if some of the connected devices use
interlaced scanning while other devices use
progressive scanning, there may be breaks
in the video and time code.
•
When 24P, 24PA or 24PN (native) is selected
and the time code is externally locked, be
sure to select a non-drop frame time code.
The time code cannot be externally locked
when drop frame mode is selected. When
the time code is externally locked, the
video may be distorted, but this is because
of adjustment to 5-frame segments and not
a malfunction.
