When an external time code signal is received, the camcorder's own time code will be synchronized to it and the synchronization will be maintained even if you disconnect the cable from the TC-IN terminal. However, performing any of the following actions while the cable is not connected will cause the time code to lag slightly; the correct time code will be restored once you reconnect the cable.

-Turning the camcorder off/on.

-Changing the position of the dial to or from .

-Changing the position of the / (card/tape) switch.

-Changing the position of the MODE SELECT or FRAME RATE switch.

If the external time code signal is incorrect or there is no input signal, the internal time code (according to the [TIME CODE]/[COUNT-UP] settings) will be recorded on the tape instead.

If the external Genlock signal is incorrect or there is no input signal, the external time code being recorded on tape may be incorrect.

When the camcorder is set to HD standard, Genlock synchronization is possible even if the external Genlock signal is in SD standard. However, Genlock synchronization will not be possible if the external Genlock signal is in HD standard but the camcorder is set to SD standard.

The phase difference between the external Genlock signal and the camcorder is initially set to 0; it can be adjusted within the range of approx. ±0.4H (-1023 to +1023) with the [SIGNAL SETUP] [GENLCK ADJST] setting ( 129).

Genlock synchronization is not possible when the camcorder is set to HD standard and [SDI SPEC.] is set to [SD LOCKED].

About the Side Panel Indications

-“GENLOCK” will flash until the synchronization stabilizes and will stay on once the phase synchronization has stabilized.

-“TC·IN” and “TC·OUT” indicate, respectively, that Time Code IN or Time Code OUT synchronization is available.

-“EXT- LOCK” indicates that the camcorder has locked on to an external time code signal.

Recording

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Canon XL H1A, XL H1S instruction manual  About the Side Panel Indications