Time code and user bits

Time code

The time code is used when the time code signal generated by the time code generator (time code signal generator) is to be recorded on the tape, its values are to be read by the time code reader (time code signal reader), and the absolute position of the tape is to be displayed in increments of hours, minutes, seconds and frames.

The time code is written in the sub-code area (data area) of the helical track. This enables insert editing to be conducted independently using the time code alone. In addition, the VTR’s playback speed can be read from the stop mode to the slow motion playback up to high-speed playback (approx. 50k normal speed or approx. 100k normal speed when using a DVCPRO tape).

The time code values are indicated on the display and superimposed display.

TCR 00 : 07 : 04 : 23

Hours Minutes Seconds Frames

User bits

The “user bits” refers to the 32-bit (8-digit) data frame among the time code signals which has been released to users. It enables operator numbers and other values to be recorded. The alphanumerics which can be used for the user bits are number 0 to 9 and letters A to F.

Setting the internal time code

1 Set the VTR to the stop mode.

2 Set F3 TC/CTL on the <HOME> menu to TC.

3 Set F1 SOURCE on the <TC> menu to INT (for selecting the internal time code).

4 Setting F5 RUN MD on the <TC> menu

REC:

The time code advances simultaneously with the recording.

FREE:

The time code advances, like time, irrespective of the VTR operation.

5 Setting F3 TCG MD on the <TC> menu

REGEN:

The continuity of the underlying time code in place prior to editing is maintained.

PRE:

The time code can be preset using the operation panel controls or remote controller.

AUTO:

The time code is automatically switched to REGEN or PRE depending on the VTR’s operation mode: during editing, REGEN is selected; at all other times, PRE is selected.

6 Registering the TC preset values Display the <HOME> menu.

<TC/UB>

zPreset (in the preset enable status)

1 When T among the number keys is pressed, the TC display switches to TCG (UBG), and the TCG

value characters (all digits) are highlighted.

2When T is pressed again, one digit is highlighted, and the change enable status is

established.

3Input the desired value using the number keys. The entire input value can be cleared by pressing

0while F holding down .

4To input the letters used with the users bits, press

Fthe same number key (toggle by tapping 7 or 8 ) while holding down . To move from one digit to another, turn the ADJ dial.

5To enter the value, press the ENT key.

6When the display screen has been changed during the input process or if the C button has been pressed, the change enable status is released, and the setting is canceled.

<CTL>

zReset

Press F4 (TC CLR).

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