Specifications

Appendixes 49
Table 2  Troubleshooting Guide
TROUBLESHOOTING GUIDE
PROBLEM POSSIBLE CAUSES SUGGESTED ACTION
Video Problems in Live Mode
Live pictures too bright,
too dark, bad color or
gray tones.
Monitor not correctly adjusted. Adjust monitor using gray or
color bars, as applicable.
Termination not set correctly. Check termination switches on
back panel for each camera
output.
Some live pictures too
dark.
Camera iris is not correctly
adjusted.
Adjust camera iris using calibrated
monitor.
Some live pictures too
light.
Some cameras are not terminated. Check rear panel switches for each
camera, set for 75-ohms.
Camera iris is not correctly
adjusted.
Adjust camera iris using calibrated
monitor.
Black horizontal lines in
picture, picture unstable.
Faulty camera sync or video
output.
Replace affected camera with a
known good camera.
One or more camera
images do not change.
VIDEO LOSS ALARM
set to
OFF
,
or
VIDLOSS
message cleared
before video loss is fixed.
Change display format, if camera
window is blank, check video
connections and camera.
Video Problems in Tape Mode
Poor pictures, bad color,
image unstable.
VCR faulty or requires
maintenance.
Perform periodic maintenance and
test VCR performance.
RECORDER STOPPED
message on monitor.
Operator changing operating
mode of unit.
For tape playback, press play on
the VCR.
Motion Detection Problems
No alarm when motion
is detected at some or
all cameras.
Camera
ALRM
option set
OFF
,
no motion detection for those
cameras.
Set
ALRM
option to
ON
for each
camera needing motion detection.
ALARM MESSAGE DISPLAY
set to
AND
, both contact alarm and
motion needed for alarm.
Check contact alarm device and
connection to alarm input pin.
Use
TST
to check motion settings.