JVC GY-DV550U Time Code Operation, Displaying Time Code, Presetting and Recording of Time Code

9. TIME CODE OPERATION

The GY-DV550 records SMPTE-standard time codes and user's bits. In the play or record mode, the reproduced time codes or user's bits are shown on the counter display.

The LTC signal from the built-in time code generator is output through the TC OUT connector. In the play mode, the time code recorded on the tape is not output through the units connectors.

•Do not directly turn off the POWER switch in the record-pause mode; otherwise, time codes will not continue. Be absolutely sure to turn off the OPERATE switch beforehand.

9-1 Displaying Time Code

OPERATE/WARNING

	CH 1			OVER	AUTO OFF		DEW		LIGHT		MODE
RESET									ON
		40 30 20	10	0 dB							RM
	CH 2			OVER	SERVO RF			L i	OFF
											VTR
	32k	48k	SLAVE	PB	NDF		HOLD
MONITOR AUD LOCK		SP							COUNTER		INCOM
SELECT		WIDE
	MENU		H	M		S		F			MIC
CH-1									CTL
	REMAIN					E BATT		F		CARBON
MIX				REV FWD					TC
CH-2		H	M						UB	DYNAMIC
										INCOM
										MIC	LEVEL
										ON
				CH-1		CH-2		CH-1	CH-2
				AUTO					FRONT
				MANUAL					REAR
				AUDIO SELECT				AUDIO INPUT		OFF
CH-1 AUDIO CH-2										CALL
	LEVEL
										RM	OFF DC IN
											/BATT.

POWER

Hour Min. Sec. Frame

H M S F

Time code display

User’s bit display

COUNTER switch

The selected time codes can be shown on the counter display during playback and recording as follows.

Set the VCR Setup Menu item No. 516 DISPLAY SELECT to “TC”.

☞ See page 75.

Set the COUNTER switch to "TC" or "UB". TC: Time codes are displayed.

UB: User's bit data of time codes are displayed.

9-2 Presetting and Recording of Time Code

The time code or user's bit data to be recorded onto the tape can be preset to a desired value.

		TC GENE Switch				NON DROP : The time code generator's running method is set
	AUDIO					to the non drop frame mode.
CH-1		CH-2				Use this setting when placing emphasis on the
	LEVEL		CH-2	CH-1	CH-2
		CH-1
			AUTO	FRONT		number of frames.
			MANUAL	REAR
		AUDIO SELECT		AUDIO INPUT		In the NON DROP frame mode, the "NDF"
		VTR SELECT TC GENE.
SEE				CONTINUE	MENU	indicator lights on the display.
INSTR-		INT	PRST	REC
UCTION		PARA	REGEN	FREE
MANUAL		EXT

LITHIUM BATT.	CAM AUX	GROUP	ITEM	SELECT	DATA SET
		HOLD	SHIFT	ADVANCE	PRESET

VTR INPUT

Setting the time code related switches

•Set the TC GENE switch to REC or FREE.

REC : The data preset in the time code generator runs only during recording.

Use this setting if it is required to record continual time codes across different scenes.

*However, approximately ±1-frame variations may occur in scene transition accuracy.

FREE : The time code starts to run from the time it is preset in the time code generator.

Setting the VCR Setup Menu

•Set the VCR Setup Menu item No. 516 DISPLAY SELECT to “TC”.

Select the time code generator's framing mode using the VCR Setup Menu item No. 416 NON DROP/DROP.

DROP : The time code generator's running method is set to the drop frame mode.

Use this setting when placing emphasis on the recording time.

The “DF” indicator lights up on the display in the drop-frame mode.

NDF

H M S F

Drop frame/Non-drop frame mode

In the NTSC system, the actual number of frames per 1 second is approximately 29.97 frames, but the number of frames that becomes the processing reference of the time code is 30 frames. To compensate for this difference, the mode called drop mode drops frame 00 and 01 for every minute that cannot be divided by 10.

The non-drop frame mode is when no frames are dropped and the actual time shift is neglected.

Note:

When the VCR Setup Menu item No. 398 SSF MODE is set to CUE MODE or MARK MODE, the time code generator’s running method is internally set to the REGEN mode.

When this is the case and you want to enter the preset mode, set the VCR Setup Menu item No. 398 SSF MODE to “OFF”, or set the TC GENE switch to the REC or FREE position again.

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