5 Troubleshooting

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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CBC ZR-DH921NP manual Troubleshooting

ZR-DH921NP specifications

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