bad analog ports

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    Dahua XVR slowly not displaying analog cams

    I have a Dahua XVR (32 total IP+analog cams, 24 analog BNC ports). IP cams attached to it are OK. Recently, it appears that analog cameras are failing; just black display on the NVR/web/SmartPSS. But the cameras have power; I can see the LEDs and sometimes hear the internal relay click when it...
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