Axis 200 - Page 61

AXIS 200 User’s Manual Appendix A: Troubleshooting
59
Symptoms Possible causes Remedial actions
Cannot access the
modem connected to the
serial port of the AXIS
200.
Modem not set for
XON/XOFF
Local echo not disabled
Ensure that the modem is set for XON/XOFF serial commu-
nication (note that CTS/RTS handshaking is not supported)
For US Robotics modems this is done using the command
AT & I1.
Disable Local echo mode using the command is ATE0.
Save the changes in the NVRAM of the modem using the
command AT&W.
A series broad vertical
white lines appear across
the image.Gray image in
bright day light conditions.
The CCD sensor
becomes overloaded
when the light is too
bright.
Turn the AXIS 200 in a direction to avoid sun light reflexes.
Try adjusting the Brightness parameter. If this does not
help, you need an optical gray filter which reduces the light
by e.g. 10 %.
Inferior picture definition
in strong sunlight.
When focusing the cam-
era on panoramic views,
particular care should be
taken with both the White
Balance setting and the
physical location of the
camera. This is because
the AXIS 200 functions
much the same as an
ordinary camera in these
circumstances, where too
much light entering the
camera produces an
over-exposed image.
Avoid pointing the camera directly into the sunlight. In sen-
sitive locations it may be worthwhile installing a sun filter or
shield for your camera. Attention to the White Balance set-
ting is also highly recommended.
The AXIS 200 produces good definition of images in twilight
darkness. By using the camera in automatic mode a good
quality picture is achievable even in relative darkness.
Caution !
The CCD (charged coupled device) within the AXIS 200
may become damaged permanently if the camera lens is
exposed to too much direct sunlight.
Noisy snapshots. If you use the AXIS 200 in
a low light environment
the image might be noisy.
To resolve this problem, you effectively need to get some
more light into the camera. The performance of the AXIS
200 is best in 100-1.000 lux.
Bad focus. Focus is not adjusted cor-
rectly
Adjust the focus of the camera by turning the lens carefully
until you get a sharp image. Normally, the white dot on the
lens should be at the 12 o’clock position. If this does not
help, rotate the lens a full turn, and check again.
Bad snapshot images. White balance set incor-
rectly.
Refer to page 30 for information on how to set the White
balance.
Display configured incor-
rectly.
Within Display Properties, configure your display to show at
least 65'000 colors, i.e. at least 16-bit.
Using only 16 or 256 colors on your computer will produce
dithering artifacts in the image.