Panasonic AJ-PX5000G Selection of external reference signal and generator lock setting

Chapter 4 Adjustments and Settings for Recording — Selection of external reference signal and generator lock setting

Selection of external reference signal and generator lock setting

Locking the video signal to the external reference signal

The video signal output from the camera can be locked to the reference signal supplied from an external source.

The camera can receive the external reference signal from the <GENLOCK IN> terminal (exclusively for analog signal) and <SDI IN> terminal (exclusively for SDI signal).

Generator-locking to the reference signal supplied from the <GENLOCK IN> terminal

The HD-Y signal or a composite signal matching the system frame frequency is supplied to the <GENLOCK IN> terminal. To enable the reference signal input to the <GENLOCK IN> terminal, [GL IN] must be set in the main menu → [I/F SETUP] → [GENLOCK] → [GENLOCK]. Select the output signal to lock to the input reference signal at [GL PHASE] (at 1080/59.94i, 1080/50i only).

Adjust the horizontal phase of the reference signal and output signal at [H PHASE COARSE] and [H PHASE FINE].

@@NOTE

tt The sub-carrier of the camera’s composite signal is not locked to the sub-carrier of the reference signal.

Generator-locking to the reference signal supplied from the <SDI IN> terminal

The SDI matching the system frame frequency is supplied to the <SDI IN> terminal.

To enable the reference signal input to the <SDI IN> terminal, [SDI IN] must be set in the main menu → [I/F SETUP] → [GENLOCK] → [GENLOCK]. When [SDI] is selected in the main menu → [SYSTEM] → [SYSTEM MODE] → [REC SIGNAL], the signal is synchronized with the reference signal input to the <SDI IN> terminal regardless of the selection of [GENLOCK]. The phase of the output signal at this time is the same as the reference signal supplied to the <SDI IN> terminal.

Adjust the horizontal phase of the reference signal and output signal at [H PHASE COARSE] and [H PHASE FINE].

Output status

The output status changes as follows according to selection of the external reference signal and generator lock setting. Set [GENLOCK] and [GL PHASE] in the main menu → [I/F SETUP] → [GENLOCK].

Selection of external reference signal			Generator lock setting	Output signal status
		Input signal and
System mode	[GENLOCK]		[GL PHASE]	(phase relationship with external reference signal)
		input terminal
				HD SDI output matches the HD SDI input signal.
			[HD SDI]	Down converter output has a delay of approx. 90 H from the
		HD SDI: <SDI IN>		HD SDI input signal.
		terminal		Down converter output matches the HD SDI input signal.
	[SDI IN]		[COMPOSITE]	HD SDI output has an advance of approx. 90 H from the HD
				SDI input signal.
		SD SDI: <SDI IN>	[HD SDI]	HD SDI output is not locked to the SD SDI input signal.
				Down converter output is not locked to the SD SDI input
		terminal	[COMPOSITE]
				signal.
				HD SDI output matches the HD-Y input signal.
1080i/1080P			[HD SDI]	Down converter output has a delay of approx. 90 H from the
		HD-Y: <GENLOCK		HD-Y input signal.
		IN> terminal		Down converter output matches the HD-Y input signal.
			[COMPOSITE]	HD SDI output has an advance of approx. 90 H from the
	[GL IN]			HD-Y input signal.
				HD SDI output matches the VBS input signal.
			[HD SDI]	Down converter output has a delay of approx. 90 H from the
		VBS: <GENLOCK		VBS input signal.
		IN> terminal		Down converter output matches the VBS input signal.
			[COMPOSITE]	HD SDI output has an advance of approx. 90 H from the
				VBS input signal.
	[INT]	—	—	Output is non-synchronous to the input signal.
		SD SDI: <SDI IN>	—	SD SDI output matches the SD SDI input signal.
		terminal		VBS output matches the SD SDI input signal.
	[SDI IN]
		HD SDI: <SDI IN>	—	SD SDI output is not locked to the HD SDI input signal.
		terminal		VBS output is not locked to the HD SDI input signal.
480i/576i		VBS: <GENLOCK	—	SD SDI output matches the VBS input signal.
		IN> terminal		VBS output matches the VBS input signal.
	[GL IN]
		HD-Y: <GENLOCK	—	SD SDI output is not locked to the HD-Y input signal.
		IN> terminal		VBS output is not locked to the HD-Y input signal.
	[INT]	—	—	Output is non-synchronous to the input signal.

@@NOTE

tt In the system mode of [1080P], a generator lock is applied to the video signal when the HD-Y or HD SDI signal is input. In this case, time code may shift by one frame.

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