If the camera fails to function as expected, check the list of common problems below
before consulting your retailer or Nikon representative. Refer to tile page numbers in tile
right most column for more information.
Problem Solution
Camera takes time to turn or]. Delete files or folders. 20, 65
Adjust viewfinder focus or use optional diopter adjust- 14, 102
Viewfinder is out of focus, ment lenses.
Displays turn off without warning. Choose a longer auto off delay. 78
Camera stops functior/ing See "A Note on Electronically-Controlled Cameras _
below.
Display in viewfinder is unrespon- The response times and brightness of the viewfinder
sive and dim. display varies with temperature.
Menu item is not displayed. Select Full for CSM/Setup menu. 80
Menu item can not be selected. Rotate mode dial to another setting or insert memor
card. 4, 12
Image size can not be changed. Image quality set to RAW or RAW+B 30
Metering can not be changed. Autoexposure lock in effect. 46
Can not measure white balance. Subject istoo dark or too bright. 71
Image can not be selected as source
for preset white balance. Image was not created with D40. 72
Full range of shutter speeds not
Flash in use. l l 7
available.
• Closest subject selected for AF-area mode: choose 24
another mode.
Can not select focus area.
Press shutter-release button halfway to activate 14
exposure meters.
Use AE-L/AF-Lbutton to lock focus in AF-C autofocus
Focus does not lock when shutter-
mode or when photographing moving subjects in 23, 26
release button is pressed halfway. AF-A mode.
ANote on Electronically-ControlledCameras
In extremely rare instances, a strong external static charge may cause the
camera may stop functioning. Turn the camera off, remove and replace
the battery (note that the battery may be hot) or disconnect and recon-
nect the AC adapter, and turn the camera on again. If the problem per-
sists, turn the camera off and press the reset switch (see right; note that
this resets the clock). In the event of continued malfundion, contact your
retailer or a Nikon-authorized service representative.
108 TechnicalNotes/Troubleshooting
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