Nikon D3000 D3000 User's Manual - Page 197

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 23, 166). Viewfinder is dark: Insert a fully-charged battery (0 15, 25). Displays turn off without warning: Choose longer delays for Auto off timers (0 130). Information display does not appear in monitor: Shutter-release button is pressed halfway. If information display does not appear when you remove your finger from shutter-release button, confirm that On is selected for Auto info display (0 127) and that battery is charged. Camera does not respond to controls: See "A Note on Electronically-Controlled Cameras," below. Viewfinder display is unresponsive and dim: The response times and brightness of this display vary with temperature. A A Note on Electronically-Controlled Cameras In extremely rare instances, unusual characters may appear in the monitor and the camera may stop functioning. In most cases, this phenomenon is Reset switch 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 Connector you are using an AC adapter (available separately), cover disconnect and reconnect the adapter and turn the camera on again. If the problem persists, turn the camera off, open the connector cover and press the reset switch (this also resets the camera clock). Note that disconnecting the power source or pressing the reset switch may result in loss of any data not recorded to the memory card at the time the problem occurred. Data already recorded to the card will not be affected. In the event of continued malfunction, contact your retailer or Nikon-authorized service representative. n 179