25Before asking for repairs, check the symptoms with the following table.Contact your dealer if a problem cannot be solved even after checking and trying the solution in the table or a problem is notdescribed below.Symptom Cause/solution Ref. pagesPower is not turned on. • Is the power plug connected to the outlet firmly?Confirm the cable is firmly connected. −• Check if the power cord is properly inserted into the power socketof the recorder.Check if it is connected firmly.19Camera images are notdisplayed on the monitor.• Is the lens cap of the camera detached from the camera?Check whether the lens cap is removed. −• Is the power of the camera and connected devices on?Check whether the power is supplied to the camera and the devices. −• Confirm that the cables are connected correctly and firmly.Confirm the cables are firmly connected.InstallationGuide• Depending on the HDMI monitor, it may not be displayed properly.Turn the monitor off and on and check whether it is displayed. −• Is the monitor luminance appropriately adjusted, or is the contrastappropriately adjusted?Check whether the settings are appropriate.−• Users who have logged into the system may not be authorized todisplay the images from cameras.Check the user level settings of these users.OperatingInstructions• Have the licenses of the additional camera kit been registered?If you have increased the camera connection number, and thecamera image on the monitor does not appear, please use thebrowser on your PC.10Part of the displayed image ismissing.• This phenomenon is caused by dispersion of display area on themonitor. This is not a malfunction. −• When a function to automatically enlarge the images in the con-nected monitor is enabled, some part of the images may not bedisplayed depending on the photographic subject.−Image is blurred. • Is the lens of the camera soiled with dirt or dust?Check whether the lens of the camera is clean. −Cannot open the setup menu. • Users who have logged into the system may not be authorized todisplay the setup menu.Check the user level settings of these users.OperatingInstructions• Isn’t it the sub monitor you are currently operating?The setup menu cannot be displayed on the sub monitor.InstallationGuideThe images or embeddedcharacters displayed on themonitor look blurry.• Depending on the photographic subject or HDMI monitor that isconnected, images or embedded characters may look blurry. Thisphenomenon is not trouble.−No alarm action is taken. • Check if alarm input signals are properly input to the ALARM/CONTROL connector at the rear panel.InstallationGuide• Are the settings of the alarm connector appropriate? OperatingInstructions• Is "Off" or "Recording only" selected for "Mode"?Check whether the settings are appropriate.OperatingInstructionsTroubleshooting