Chapter 3: Pro Tools | SYNC HD Hardware
19
Parameters and Values
When configuring a
SYNC HD with the Set, Run/Stop and other pa-
rameter controls, the LED display shows parame-
ter names, values, and other data.
Positional Reference Switch
This switch selects the positional reference source,
as indicated by the Positional Reference LEDs.
Choices include LTC, VITC, Auto Switch Bi-
phase, and Generate.
In Auto Switch LTC/VITC mode, both the LTC
and VITC LEDs light while the SYNC HD deter-
mines which source it will use. Either the LTC or
the
VITC LED
will remain lit to indicate the chosen
positional reference.
Frame Rate Switch
This switch selects the timecode frame rate and
format (drop-frame or non drop-frame). The active
choice is displayed by the Frame Rate and DF
(drop frame) LEDs.
Frame Rate LEDs and DF Indicator
These display the current SYNC HD frame rate:
30, 29.97, 25, or 24 fps are indicated by four green
LEDs. The DF LED indicates drop-frame (lit) or
non drop-frame (unlit). The 24 fps LED flashes to
indicate 23.976 fps.
Status LEDs
These LEDs show the current state of the
SYNC HD in relation to clock references. Indica-
tors include:
Locked
This LED flashes yellow if the selected
clock reference source is missing or out of lockable
frequency range.
Speed Cal (Speed Calibration)
This LED lights to
indicate the status of the clock reference:
• Yellow Solid: SYNC HD is locked and that the
clock reference is within 0.025% of the expected
rate
• Yellow Flashing Fast: SYNC HD is locked, but
the clock reference is between 0.025% and 4%
faster than the expected rate
• Yellow Flashing Slow: SYNC HD is locked, but
the clock reference is between 0.025% and 4%
slower than the expected rate
• Red Flashing Fast: SYNC HD is locked, but the
clock reference is more than 4% faster than the
expected rate
• Red Flashing Slow: SYNC HD is locked, but the
clock reference is more than 4% slower than the
expected rate
• Unlit: SYNC HD is not locked to the chosen
clock reference
Remote Mode
This green LED lights when the
SYNC HD is set to Remote-Only/Front Panel
Lockout mode. While this LED is lit, the front
panel switches will have no effect.
For a table identifying each LED abbreviation
and function, see “Parameters” on page 45.
Summary of Contents for Pro Tools SYNC HD
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Page 62: ...Pro Tools SYNC HD Guide 56 ...
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