Seon Maintenance and Troubleshooting Guide R004 40
Cameras
All Problems
Many system problems are caused by issues with the power supplied to
the DVR. Check the following at the DVR:
•
The voltage to the system may be too low. Check the voltage display
(On or Off). If the voltage display is turned OFF, go to the “Diagnostic
Display Menu” and turn Voltage Display to ON. The voltage range
should be between 8 to 32 VDC.
•
The power harness from the DVR must be connected as close to the
battery as possible. Check the wiring to the battery.
Check the in-line fuses and fuse holders. If a fuse is blown, determine
the cause before replacing it.
If you have a spare camera, have you tried swapping it out?
No video display when
monitor connected to DVR
•
Check that the monitor’s rechargeable battery is charged.
•
Check wiring harness for kinks, cuts and pinches in the cable.
•
Inspect the camera and DVR connections for any wire separations.
•
Some cameras have a Video Output on the main board. With the
camera still connected to the DVR, plug monitor directly into this
camera video output.
Picture is very dark or
black in the daylight
•
The camera has a built in electronic iris that controls the amount of
light being processed.
•
If the camera is exposed to excessive light, the picture may darken as
it attempts to compensate.
•
Check your camera settings, some units have a BLC (backlight
compensation) switch onboard. Make sure this is in the ON position.
Picture is exceptionally
bright.
As above, the electronic iris may be affecting the light level.
Make sure the backlight compensation switch is in the on position.
When dark in the bus,
nothing is visible to the
camera.
•
Some cameras have infra-red illuminators (IRs) onboard. This will
allow the camera to see in a darkened area.
•
Looking closely at the inside front of the camera, there should be a
small piece of green cellophane covering a small sensor.
•
If the cellophane is missing, it may cause the camera to flicker.
•
Some models also have a ON/OFF and level adjustment for the IRs.
•
Check this to see if it is in the on position, if the camera is facing out
through the windshield, turn off the IR.
Strobing camera output to
the monitor.
•
Check to see if the green IR filter above the lens and has been
removed or broken.