CBC ZR-DH1621NP - Manual (Page 37)

Symptoms Resolution
No power. - Check power connection to DVR
No Front Panel LED activity. - Check position of 115V / 230V switch
No Monitor Output. - Check and/or replace fuse
- Check position of On/Off switch.
- Power device on
Normal Front Panel LED activity. - Check power connections to monitor
No Monitor Output. - Check all BNC connections to monitor
Video Loss on a specific channel. - Check power connection to video source
- Check BNC connection from video source to DVR
- Make sure channel is not set as ‘covert channel’
Menu screen does not appear. - Look at status icons
when the Menu button is pressed. - Make sure device is not in Playback Mode
- Make sure you’re viewing the main monitor, not spot
- Make sure device is not in PTZ mode
No PTZ Function. - Make sure device is not in Playback Mode
Device will not enter PTZ mode. - Make sure device is in PTZ mode
No control of PTZ camera in PTZ mode. - Check serial connections from video source to DVR
- Make sure PTZ device is a supported device
- Make sure PTZ device is properly configured
No DVR response to front panel buttons. - Make sure Front Panel is not locked
- If locked, enter Administrator Password to unlock.
No External Alarm Control. - Check all external alarm connections
No input activity from external alarm. - Make sure external alarm connections are properly
No activation of external alarm triggers. configured, using the Alarm Setup menu
- Make sure that you have correctly specified circuit to
be N/O (Normally Open) or N/C (Normally Closed)
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5 Troubleshooting