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Chapter 4 Basic operations
• Whenever the red temperature indicator and a temperature warning message appears along
with an audible warning alarm, immediately withdraw the scope from the object of
observation. Continued use risks damage to the insertion tube and the optical adapter,
resulting in malfunction and reduced illumination.
• If any irregularities are found with the scope operation or other things during the scope
insertion, do not insert the scope any further. If this happens, (release the angulation lock if it
is locked) remove your finger from the [ANGLE] joystick, return the angulation section to
center position and slowly remove the insertion tube.
Angulation operation
1 The scope should be angulated as required for guidance or
observation. See “Checking the angulation functions” (page 64) for
details about angulation operation.
NOTE
• Increasing the insertion tube looping amount (bending amount) decreases the maximum
angulation angle limit of the angulation section. Keep the insertion tube as straight as
possible to get the best operations from the instrument.
• Angulation tends to be difficult to achieve under low temperatures.
Adjusting the LCD monitor brightness
1 Press the [BRIGHT] button on the LCD monitor to adjust the
brightness as required.
NOTE
• If there is an extremely bright area in the image, vertical noise bands may appear.
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