Uniden UDVR45-4, Руководство пользователя

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TROUBLESHOOTING
After turning on, the DVR can not switch on normally.
Possible reasons:
•
The power supply is damaged.
•
Power cable is damaged.
•
Firmware is outdated.
•
The hard disk is damaged.
•
The DVR internal power board is damaged.
The DVR reboots automatically or frequently stops working after
booting up for a few minutes
Possible reasons:
•
The input voltage is not stable or too low.
•
The hard disk or the hard disk cables are damaged.
•
The front-end video signal is not stable.
•
Poor heat dissipation, too much dust, bad running environment
for the DVR.
•
DVR hardware is damaged.
Cannot detect hard disk after turning on power.
Possible reasons:
•
The hard disk power supply cable is not connected.
•
The hard disk cables are damaged.
•
The hard disk is damaged.
•
The HDD has failed.
•
The SATA port of the main board is damaged.
No video output in single channel, multiple channels, or all
channels.
Possible reasons:
•
Firmware is out of date. Upgrade the firmware.
•
The image brightness is all 0. Please restore the default setup.