84TroubleshootingCheck 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.pp Is the power plug connected to the AC outlet firmly?¼Ú Confirm the cable is firmly connected.pp Is the power cord (provided with this product)connected to the power inlet of the recorder firmly?¼Ú Check if it is connected to the limit.18No camera image is displayed.pp Check camera video cable and connections.pp Check monitor video cable and connections.pp Confirm that the camera has power.pp Check camera lens settings.15, 18Live video is very bright. 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 fit in thescreen.This is not a malfunction. Images may not fit in thescreen of some monitor models because of theirresolutions.—Black bars are displayed on bothedges of the screen.Black bar(s) appear(s) when signals not compliant withthe standard in your locality are transmitted. —The recorder cannot start recording.pp Check if the Overwrite mode of the Record settingsis checked.pp Check the Schedule settings.32, 33The recorder has stoppedrecording.pp If hard disk drive is full, you will either need todelete video or set the recorder to the OverwriteMode.pp You can check the free space of HDD, if free spacetab of DISPLAY-OSD settings is checked.29, 32, 52The icon displays, however, therecorder is not recording.When the recorder is in the Pre-Event recording mode,the yellow and display when there is no event,and the recorder is not recording. The red anddisplay when any event occurs and the recorder startsrecording.34, 35The recorder cannot playbackimages.Check if images have been recorded on the hard diskdrive. 67The recorder cannot controlcameras.pp Check the connection (RS485 Terminal) of thecamera you are going to control.pp Check if the camera you are going to control is aPTZ camera.17Alarm operations are not activated.pp Check if alarm input signals are properly input tothe Alarm Input Terminal at the rear panel.pp Check the Alarm-In settings.16, 37The clock does not keep correcttime.Check if the built-in backup battery has been wornout. The battery life is approx. 5 years. (The batterylifetime may differ depending on the condition of theenvironment.)—Cannot establish a connection viathe network. Check the network settings of the unit and PC. 18, 44Cannot video clip copy to the USBflash drive.Check if it is possible to write in the USB flash drive byusing PC. —