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A : The possible causes:
1. Wrong alarm settings
2. AlarmOut turned on manually
3. Input equipment error or wrong connections.
4. Wrong firmware problem; Upgrade firmware to fix it.
Q 18.
Alarms do not work
A : The possible causes:
1. Wrong alarm setting
2. Wrong alarm wiring
3. Wrong AlarmIn signal
4. One alarm equipment involves into two loops.
Q 19.
The remote controller cannot work
A : The possible causes:
1. Wrong control address
2. Long distance or poor angle
3. Battery run out
4. Controller or NVR front panel is out of order
Q 20.
Short recording time
A : The possible causes:
1. Bigger data rate from poor camera quality, dirty lens, backlight
installation, bad aperture adjustment.
2. Small HDD storage
3. HDD damage
Q 21.
Download files cannot be played back.
A : The possible causes:
1. No player
2. No graphic accelerator with DX8.1 or above
3. Save as AVI files and play with MEDIA PLAYER
12
Hardware Manual
VDH-NK160
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