HV-HD201 Op Manual - Hitachi Kokusai Electric America, Ltd.

How to Attain Better Images
Black balance adjustment
Under normal condition, it is not required to make black balance adjustment at power-on.
1. In the menu mode, display the AUTO SETUP and move the cursor to AUTO BLACK. Push R button for
1 second or more to carry out automatic black balance adjustment. At the end of successful adjustment
AUTO BLACK:OK appears.
Notes : 1) Where the lens having the auto iris function is used, the iris is closed automatically during
adjustment.
2) In combinational use with the manual iris lens or microscope, When taking a picture after
adjustment, a white screen image appears momentarily. This phenomenon is not an a
error.
3) In case that the manual iris lens is used, do not attempt auto black balance adjustment
while taking an image of subject having extremely high luminance such as the sun. This
may deteriorate black balance accuracy.
2. If black balance adjustment cannot be made, any one of the following messages will appear. Take a
proper procedure according to the error message, and then try again black balance adjustment.
Error message
AUTO BLACK:NG
CHANGE TO CAMERA
TRY AGAIN
AUTO BLACK:NG
・Turn off the color bar.
Procedure
・Close the lens iris.
・ Avoid taking an image of subject having high luminance such as the sun, or decrease
illumination on the microscope.
・Carry out AUTO BLACK again. If this message appears in repeated attempts, it is
necessary to inspect the inside of the camera. In this case, contact your local Hitachi
Kokusai Electric sales dealer or Hitachi Kokusai Electric service center.
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