26
26
26
26
、
The
The
The
The snapshot
snapshot
snapshot
snapshot at
at
at
at alarm
alarm
alarm
alarm function
function
function
function was
was
was
was enable,
enable,
enable,
enable, why
why
why
why not
not
not
not catch
catch
catch
catch picture
picture
picture
picture
Possible reasons are as followed:
1
HDD manage without partition for snapshot.
2
Partition for snapshot is 0
3
The snapshot function is not enable on record-> storage of related channel.
27
27
27
27
、
The
The
The
The time
time
time
time shows
shows
shows
shows on
on
on
on digital
digital
digital
digital channel
channel
channel
channel is
is
is
is not
not
not
not the
the
the
the same
same
same
same as
as
as
as local
local
local
local side:
side:
side:
side:
Enable the time synchronous function of digital channel.
28
28
28
28
、
Can
Can
Can
Can not
not
not
not see
see
see
see preview
preview
preview
preview picture
picture
picture
picture of
of
of
of analog
analog
analog
analog channel
channel
channel
channel
Possible reasons are as followed:
1 The camera did not connect to video interface
2 The device did not connect to video source
3 Video source is broken.
29
29
29
29
、
Picture
Picture
Picture
Picture will
will
will
will be
be
be
be frozen
frozen
frozen
frozen when
when
when
when multi-connection
multi-connection
multi-connection
multi-connection and
and
and
and shift
shift
shift
shift devices.
devices.
devices.
devices.
Picture come out from digital channel need few seconds, shift device means to show new picture, so
it needs several seconds to buffer.
6.2
6.2
6.2
6.2
Maintenance
Maintenance
Maintenance
Maintenance
1
Please brush printed circuit boards, connectors, fans, machine box and so on regularly.
2
Please keep the grounding well done to prevent the video or audio signal interfered and the
DVR from static or inductive electricity.
3
Do not pull out the video signal line or RS-232 port or RS-485 port with the power on.
4
Do not use the TV in the local video output port(VOUT) of DVR. It will damage the video
output circuit easily.
5
Do not turn off the switch directly. Please use the turn-off function in the menu or press the
turn-off button in the panel (3 seconds or longer) to protect the hard disk.
6
Please keep the DVR away from heat resource.
7
Please keep the DVR ventilated for better heat radiator.
Please check the system and maintain regularly.
