Faq - Dahua DH-XVR4104C-X User Manual

1. DVR cannot boot up properly.
There are following possibilities:
Input power is not correct.
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Power connection is not correct.
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Power switch button is damaged.
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Program upgrade is wrong.
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 HDD malfunction or something wrong with HDD jumper configuration.
Seagate DB35.1， DB35.2， SV35 or Maxtor 17-g has compatibility problem. Please upgrade

to the latest version to solve this problem.
 Front panel error.
Main board is damaged.
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2. DVR frequently shuts down or stops running.
There are following possibilities:
 Input voltage is not stable or it is too low.
HDD malfunction or something wrong with jumper configuration.
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Button power is not enough.
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Front video signal is not stable.
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Working environment is too harsh, too much dust.
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Hardware malfunction.
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3. Hard disk cannot be detected.
There are following possibilities:
HDD is broken.
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HDD jumper is damaged.
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 HDD cable connection is loose.
 Main board SATA port is broken.
4. There is no video output whether it is one-channel, multiple-channel or all-channel output.
There are following possibilities:
Program is not compatible. Please upgrade to the latest version.

 Brightness is 0. Please restore factory default setup.
 There is no video input signal or it is too weak.
 Check privacy mask setup or your screen saver.
 DVR hardware malfunctions.
5. Real-time video color is distorted.
There are following possibilities:
 When using BNC output, NTSC and PAL setup is not correct. The real-time video becomes
black and white.
DVR and monitor resistance is not compatible.
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Video transmission is too long or degrading is too huge.
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DVR color or brightness setup is not correct.
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6. Cannot search local records.
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FAQ

FAQ 288