User Manual of Digital Video Recorder423.4 Manual Video Quality DiagnosticsPurpose:The video quality of the analog channels can be diagnosed manually and you can view the diagnostic resultsfrom a list.Steps:1. Enter the Manual Video Quality Diagnostics interface.Menu> Manual >Manual Video Quality DiagnosticsFigure 3. 8 Video Quality Diagnostics2. Check the checkboxes to select the channels for diagnostics.3. Click the button Diagnose, and the results will be displayed on a list. You can view the video status anddiagnostics time of the selected channels.Figure 3. 9 Diagnostics Result Connect the camera to the device for the video quality diagnostics. Three exception types can be diagnosed: Blurred Image, Abnormal Brightness and Color Cast.