80TroubleshootingCheck the following before requesting repair.Contact a dealer if a problem cannot be solved even after checking and trying the solution or if a problem isnot described below, or when having a problem with installations.Problem Possible Solution Ref.PagePower is not turned on.・ Is the power plug connected to the AC outlet firmly?Confirm the cable is firmly connected.・ Is the power cord (provided with this product) connectedto the power inlet of the recorder firmly?Check if it is connected to the limit.15No camera image isdisplayed.・ Check camera video cable and connections.・ Check monitor video cable and connections.・ Confirm that the camera has power.・ Check camera lens settings.15Live video is very bright.・ Check if the cameras are connected to the Video InputConnectors correctly.・ Check if the cameras are connected to the Video InputConnectors correctly.15The camera image is dim. Check if dust may be sticking to the camera lens. -Displayed image does not fitin the screen.This is not a malfunction. Images may not fit in the screen ofsome monitor models because of their resolutions. -The recorder cannot startrecording・ Check if the Overwrite mode of the Record settings ischecked.・ Check the Schedule settings.37, 39The recorder has stoppedrecording・ If hard disk drive is full, you will either need to delete video orset the recorder to the Overwrite Mode.・ You can check the free space of HDD, if free space tab ofDisplay-OSD settings is checked.27, 35,37The icon displays,however, the recorder is notrecording.When the recorder is in the Pre-Event recording mode, theyellow and display when there is no event, and therecorder is not recording. The red and display when anyevent occurs and the recorder starts recording.41The recorder cannotplayback images. Check if images have been recorded on the hard disk drive. 61The recorder cannot controlcameras.・ Check the connection(RS485 Terminal) of the camera youare going to control.・ Check if the camera you are going to control is a PTZcamera.15, 16Alarm operations are notactivated.・ Check if alarm input signals are properly input to the AlarmInput Terminal at the rear panel.・ Check the Alarm-In settings.15, 41The clock does not keepcorrect time.Check if the built-in backup battery has been worn out. Thebattery life is approx. 5 years. (The battery lifetime may differdepending on the condition of the environment.)-Cannot establish aconnection via the network. Check the network settings of the unit and PC. 15, 29