Sony Black Balance Adjustment, If black balance adjustment cannot be completed automatically

Black Balance Adjustment

Correct adjustment of the black balance is important for optimum operation of a video camera. It is necessary when using the camera for the first time or after a significant period out of use, and also when there has been a sudden change in temperature.

The adjustment value is saved in memory, and readjustment is not normally necessary after powering the camera off or simply when lighting conditions change.

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1 Move the POWER switch to the ON/SAVE position, and check that the OUTPUT/DCC switch is in one of the CAM positions.

2 Push the WHT/BLK switch in the BLK direction and release.

The lens aperture closes, and black balance adjustment is carried out.

During the adjustment the legend “ABB:EXECUTING” appears in the viewfinder.

ABB:EXECUTING

REFERENCE READ G

After a dozens of seconds the adjustment is complete, and the legend in the viewfinder changes to “ABB:OK.”

If you press the WHT/BLK switch toward either side while “ABB: EXECUTING” is being displayed, the black balance adjustment in progress

is canceled, and the camera returns to the previous state.

Notes

•When using a camera control unit or remote control unit, if the W/B BALANCE switch of the control unit is set to MANUAL, it is not possible to carry out black balance adjustment on the camera.

•The black balance cannot be adjusted while recording. Since the readout mode of the CCD changes during black balance adjustment, some disturbance may be generated in the video output signal from the camera. If automatic black balance is activated when any peripheral equipment is connected, noise may be generated or warning indication may light, but this is not a problem.

If black balance adjustment cannot be completed automatically

The warning message “ABB:NG” appears in the viewfinder.

Make the necessary corrections, then carry out the process again.

Warning messages for black balance adjustment

Message	Meaning and corrections to be made
ABB:NG	The lens aperture did not close fully.
IRIS	Check whether the lens cable is
NOT CLOSE	connected properly, and whether there is
	a fault in the lens. If a second attempt to
	carry out the adjustment fails, consult
	your Sony dealer.
ABB:NG	The aperture opened during adjustment
OVER FLOW	or there is a hardware error.
	Close the aperture and try again. If this
	fails, consult your Sony dealer.
ABB:NG	Close the lens, then perform the Auto
TIME LIMIT	Black Balance adjustment again.
	If ABB adjustment cannot be performed
	on the second try, consult your Sony
	dealer.
ABB:BREAK	This message is displayed when the ABB
	adjustment is canceled upon your
	pressing the WHT/BLK switch to either
	side while the adjustment is being
	performed.
BARS	The camera is outputting a color bar
	signal.
	Move the OUTPUT/DCC switch to one of
	the CAM positions.

Settings and Adjustments 5 Chapter

Chapter 5 Adjustments and Settings 77