What
if there's no video signal coming from my
cameras?
First check the power.
If the cameras have power, they should
get warm to the touch. If your cameras
are cold, they probably don’t have
power. For dome cameras, unscrew the dome
cover to feel the camera inside. Be careful!
The domes can get quite hot to the touch.
Note:
When adjusting the wiring on any of the
cameras, turn off or unplug the camera power
supply box! It is extremely easy to blow
a fuse if the power supply is on when you
are re-wiring your cameras.
-
Check
that the camera power supply is plugged
in
-
Check that the power supply on/off switch
is on
-
Check the fuses inside the power supply;
if a fuse is ok, the light next to it
should be on
-
Check the power connections to the power
box
-
Check the power connections to the cameras
If
you are *certain* that the cameras have
power, check your twist-on video connectors
(if you bought a reel of cable & twist-on
connectors)
-
The
cable must be prepared as shown in the
installation picture
-
Check that none of the outer grounding
shield is touching the inner conductor
-
Check that the inner conductor is connecting
with the inner socket in the twist-on
connector
-
Check that the outer grounding shield
is making solid contact with the outer
housing of the twist-on connector
What
if some of my cameras are working, but others
are not?
-
Double-check
the fuse and power on that camera
-
To check the camera:
Take the non-working camera to a location
where a working camera is installed.
Unhook the working camera and replace
it with the non-working one. If you
get video, the camera is good and either
the cable or the DVR is at fault
-
To check the DVR:
Hook up the cameras. Unhook a working
video input from the DVR and swap it
with a non-working input. If the working
camera works on both inputs, the DVR
is working properly; the problem is
with the camera or cable
What
if I have video that is "noisy"
or "grainy"?
-
Triple-check
the twist-on connectors: if part of
the ground shield is touching the inner
conductor, it can lead to noise issues.
Additionally, ensure that the cable’s
ground shield is in firm contact with
the twist-on connector. Good grounding
is essential for good video!
-
Avoid running your video cable near
noise sources such as electric motors,
electric welders, and lights
What
if I have "blurry" video?
-
Check
the focus of your camera lens. For dome
cameras, unscrew the dome and gently
twist the lens
-
Clean the cleans with a soft cloth
-
If your recording resolution is 640x480,
you may see a “blur” when
there is motion; this is normal (and
unavoidable) for a video signal. Try
reducing the resolution to 640x240 or
lower.
What
if I have "doubled" video or "ghosting"?
Check
that the video cable is not coiled in a
large number of loops; loops can cause a
type of feedback noise, as well as cause
other noise issues
For
ghosting from another video source, i.e.,
another image appears in the one you are looking
at:
-
Check grounding
-
Move
the affected video inputs on the back
of the DVR to another location
-
If the two affected inputs have their
cables running near each other for a
long distance, try to separate them
a little
What
if I don't see the answer to my question?
Call
507-454-5425
and we'll give it to you!
|
