274Chapter 4 Adjustments and settings for recording≥ Check that the lens connector has been connected andthat the lens aperture is set to CLOSE.≥ While the black balance is being adjusted, the apertureis automatically set to the light-shielding status.≥ While the black balance is being adjusted, the gainselector circuit is switched automatically.Flicker or noise may appear on the viewfinder screen,but this is not indicative of malfunctioning.≥ If the black shading is still unsatisfactory although the“ABB OK” message is displayed, perform menuoperations to open the screenfrom the MAINTENANCE page, move the arrow mark(>) to the DETECTION item, press the JOG dialbutton, and proceed with the black shading adjustment.If the ABB switch is held down for 5 or more seconds,the black shading can be automatically adjusted afterthe ABB operation. (See the SHD.ABB SW CTL itemunder “7-5-5 SW MODE.”)≥ If the AUTO W/B BAL switch is pushed down to theABB position again while the black balance is beingautomatically adjusted (ABB ACTIVE), the adjustmentwill be aborted.The adjusted value in this case is the value beforeautomatic adjustment was performed.Black balance memoryThe values stored in the memory are retained even after theunit’s power has been turned off.4-1-2 Adjusting the black balanceThe black balance needs to be adjusted in the followingcases:≥ When the unit is used for the first time≥ When the unit is used after it has not been used for aprolonged period of time≥ When the unit is used in an ambient temperature which hasfluctuated significantly≥ When the value selected for the gain switch has beenchanged≥ When the super gain setting has been performed using theUSER MAIN, USER1 or USER2 button≥ When the gamma ON/OFF setting has been changed1 Set the switches as shown in the figure.2 Set the AUTO W/B BAL switch to the ABB position, andthen release it.The switch returns to the center, and the adjustment isperformed.3 While the adjustment is in progress, the followingmessage appears on the viewfinder screen.While the adjustment is in progress, the lens aperture isautomatically set to CLOSE.AUTO W/B BAL switch:Use this to execute ABB.OUTPUT: CAMABB ACTIVE4 Adjustment is completed in several seconds. (A messagesimilar to the one shown in the figure below now appears.)The adjustment value is automatically saved in thememory.ABB OK