Appendix F
Troubleshooting
Failure Possible reasons
After plugging in power, turning on the
power switch, “POWER” light in front
Panel does not turn on, and fan does not
work.
1) Power cable is
broken.
2) Power supply is
broken.
After plugging in power, turning on the
power switch, “POWER” light in front
panel turn to green while fan does not
work.
1) Front panel cable is
broken.
2) Fan is broken.
After plugging in power, turning on
switch, “POWER” light turn to green, the
indicator lights in the panel turn on at
the same time, but fan does not work.
The ATX plug in main
board is not well
plugged in.
DVR continuously reboots after start up,
and makes a sound like “di” every 10
seconds.
1) Upgrade the wrong
firmware
2) Compression board
has problems.
3) Main board has
problems.
There are no images in the monitor
connected with VOUT after DVR is
started.
1) The cable connected
with the monitor is
broken.
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