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Mach HD V2 Motion Compensated Standards Converter with Synchronizer, Up, Down, and Cross Conversion
Version 1 Issue 1
©
Snell 2009
Page 33
Genlock
Genlock
The selected genlock mode is indicated by – signs
at either end of the name.
Rotate the knob to show the alternative Genlock
modes (Ref Lock, Input Lock, Follow input,
Freerun) and then press Select.
Repeated presses of the Genlock button will move
through the following menus.
HD Gen phase
HD Gen phase is used to specify the phase offset
between the reference and the HDSDI output
when outputting HD in Reference Lock mode with
an appropriate HD reference applied.
Rotate the knob to select the genlock offset
b32us and -32us in 13.5ns steps
Preset is 0us.
SD Gen phase
SD Gen phase is used to specify the phase offset
between the reference and the SDSDI output
when outputting SD in Reference Lock mode with
an appropriate SD reference applied.
Rotate the knob to select the genlock offset
b32us and -32us in 37ns steps
Preset is 0us.
Genlock
Reference Lock
Output video is locked to a same frame rate
external reference. The offset between the
external reference and the output can be adjusted
over a range of approxi/- 32us using the
Genlock phase controls.
Input Lock
Output video, of the same frame rate, is locked to
the selected input video source. When converting
between frame standards this mode is not
available.
Free run
Output video is locked to an internal reference
clock.
Note:
The Reference Lock and Input Lock modes
will only lock when the output is the same frame
rate as the reference or input. For example, 720p
50 will not lock to 1080i 59.94 .
Back
Genlock
Select -Freerun-
Back
Genlock
Select -Input
Lock-
Back
Genlock
Select -Reference Lock-
Back HD Gen phase
Preset 0us
Back SD Gen phase
Preset 0us
