348If the camera fails to function as expected, check the list ofcommon problems below before consulting your retailer orNikon-authorized service representative.Battery/DisplayTroubleshootingThe camera is on but does not respond: Wait for recording to end. If theproblem persists, turn the camera off. If the camera does not turn off,remove and reinsert the battery or, if you are using an AC adapter,disconnect and reconnect the AC adapter. Note that although any datacurrently being recorded will be lost, data that have already beenrecorded will not be affected by removing or disconnecting the powersource.Viewfinder is out of focus: Adjust viewfinder focus (0 29). If this does notcorrect the problem, select single-servo AF (AF-S; 0 101), single-point AF(0 103), and the center focus point (0 108), and then frame a high-contrast subject in the center focus point and press the shutter-releasebutton halfway to focus the camera. With the camera in focus, use thediopter adjustment control to bring the subject into clear focus in theviewfinder. If necessary, viewfinder focus can be further adjusted usingoptional corrective lenses (0 333).Viewfinder is dark: Insert a fully-charged battery (0 13, 35).Displays turn off without warning: Choose longer delays for Custom Settingc2 (Standby timer) or c4 (Monitor off delay) (0 296).Displays in control panel or viewfinder are unresponsive and dim: The responsetimes and brightness of these displays vary with temperature.
