Nikon D7000 - Manual (Page 319)

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Troubleshooting
If the camera fails to function as expected, check the list of common problems below
before consulting your retailer or Nikon representative.
Display
Viewfinder is out of focus : Adjust viewfinder focus or use optional eyepiece correction lenses
( 0 34, 281).
Viewfinder is dark : Insert a fully-charged battery ( 0 21, 35).
Displays turn off without warning : Choose longer delays for Custom Setting c2 (Auto meter-off
delay) or c4 (Monitor off delay) ( 0 214, 215).
Camera does not respond to controls : See “A Note on Electronically-Controlled Cameras,” below.
Control panel and viewfinder displays are unresponsive and dim : The response times and brightness of
these displays vary with temperature.
Fine lines are visible around active focus point or display turns red when focus point is highlighted : These
phenomena are normal for this type of viewfinder and do not indicate a malfunction.
A
A Note on Electronically-Controlled Cameras
In extremely rare instances, unusual characters may appear in the control panel and the
camera may stop functioning. In most cases, this phenomenon is caused by a strong
external static charge. Turn the camera off, remove and replace the battery, taking care to
avoid burns, and turn the camera on again, or, if you are using an AC adapter (available
separately), disconnect and reconnect the adapter and turn the camera on again. If the
problem persists, contact your retailer or Nikon-authorized service representative.