Olympus OTV-SI, Инструкция по эксплуатации, Страница: 76 / 174

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Chapter 5 Operation
VIDEO SYSTEM OTV-SI
• When the menu is not displayed, pressing the remote control
switch that is assigned to the “W/B” function or the “Shift” and
“F1” key on the keyboard simultaneously displays “W/B” at
the bottom left on the video monitor.
• The color settings should be set at their center positions on
this instrument. Otherwise, a pure white will not be displayed
on the video monitor even if white balance has been
performed correctly.
• Always adjust the white balance each time a videoscope,
camera head, rigid endoscope or fiberscope is connected.
Otherwise, correct color reproduction cannot be obtained.
• Ensure that extraneous light does not reach the distal end of
the videoscope, camera head, rigid endoscope or fiberscope
insertion tube while adjusting the white balance. Extraneous
light could impair white balance adjustment.
• Adjust the distance to the object to ensure that the entire
image fits on the screen.
• If the object is too close, wash out may result, rendering the
white balance adjustment ineffective. Adjust the distance to
the object to display a medium level of brightness on the
video monitor.
• A variety of factors, such as the color adjustment of the bulb
in the light source, the size of the image rendered by the
endoscope or the combination of ancillary equipment may
affect the auto white balance function. If further adjustment is
needed, refer to “Hue level adjustment”, below.
• If the color on the video monitor is not adjusted properly,
white will not appear on the video monitor, even if white
balance has been performed. Adjust the PHASE and
CHROMA knobs on the video monitor and refer to Section
5.4, “Adjusting the video monitor”.
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