Chapter 10 Troubleshooting
261
EVIS EXERA II VIDEO SYSTEM CENTER CV-180
The endoscopic image is
too dark.
The iris mode selection is
incorrect.
Set it properly as described
in “Iris mode” on page 69.
The exposure setting is
incorrect.
Set it properly as described
in “Brightness adjustment
(Exposure)” on page 71.
The monitor brightness
setting is improper.
Set a proper brightness as
described in the monitor's
instruction manual.
The monitor contrast
setting is improper.
Set a proper contrast as
described in the monitor's
instruction manual.
The following problems may be due to the light source.
Refer to the light source's instruction manual for further
details.
• The lamp is not installed
correctly.
Reinstall the lamp correctly.
• The lamp is broken. Replace it with a new lamp.
• The lamp is not ignited. Press the lamp ignition
button on the light source.
• The brightness level is
improper.
Set to a proper level.
• The filter is improper. Set to a proper filter setting.
The endoscopic image is
too bright.
The iris mode selection is
incorrect.
Set it properly as described
in “Iris mode” on page 69.
The exposure setting is
incorrect.
Set it properly as described
in “Brightness adjustment
(Exposure)” on page 71.
The light control cable is
not connected.
Connect the light control
cable as described in
Section 4.2, “Connection of
an endoscope” on page 46.
The light source brightness
level is improper.
Set a proper brightness as
described in the light
source's instruction
manual.
The monitor brightness
setting is improper.
Set a proper brightness as
described in the monitor's
instruction manual.
The monitor contrast
setting is improper.
Set a proper contrast as
described in the monitor's
instruction manual.
Irregularity description Possible cause Solution
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