HD9010TM High Definition Time Code Master Manual
OPERATION
Revision 2.4.1
Page 3-23
3.7.2. Selecting the Generator Framing Reference
REFERENCE MODE
The
REFERENCE MODE
menu item is used to set whether the
internal timing of the HD9010TM will be locked to the input video or the
External Reference input. The updating of the generator clock,
character displays and LTC phasing, and output video timing reference
signals (TRS) are in turn locked to the internal timing reference of the
HD9010TM.
Select
input
to reference the HD9010TM to the input video. This setting
will cause the internal timing reference of the HD9010TM to become
disrupted and unlocked when an HD input signal is not present. This
may cause disturbances in the output video, but is the preferred method
when you cannot time the input video to the reference within one line.
Select
tri-lvl
to reference the HD9010TM to a tri-level sync signal
applied to the GENLOCK input. Select
bi-lvl
to reference the
HD9010TM to a bi-level sync signal applied to the GENLOCK input.
These settings will allow the internal timing reference of the HD9010TM
to remain locked to the reference when an HD input signal is not
present, providing a stable video output. The input video must be timed
to the sync reference within one horizontal line period for proper
alignment of the picture content on the output video. The format of the
reference sync signal must be in accordance with the standards shown
in Table 2-5.
Ref: input
Ref: tri-lvl
Ref: bi-lvl
Regardless of the setting of this menu control the HD9010TM requires a stable
video input for normal operation.
3.7.3. Adjusting the Output Level of the LTC Generators
LTC LEVEL
The
LTC LEVEL
menu item is used to adjust amplitude of the main
LTC output. Turn the shaft encoder to adjust. The recommended
output level setting is 35, which is approximately 1 volt peak to peak.
Ltc level =xx
AUX LTC LEVEL
The
AUX LTC LEVEL
menu item is used to adjust amplitude of the
auxiliary LTC output. Turn the shaft encoder to adjust. The
recommended output level setting is 35, which is approximately 1 volt
peak to peak.
Aux ltc level =xx
3.7.4. Adjusting the Baud Rate of the Serial Ports
COM 1 BAUD RATE
The
COM 1 BAUD RATE
menu item is used to set the baud rate of the
COM 1 serial port. Turn the shaft encoder to adjust. This serial port is
used to broadcast time and user bit data in a packed BCD format.
Contact the factory for further information. Note that the setting of this
menu item does not affect the firmware upgrade baud rate. See section
4.2.2.
Com 1 =xx