Sharp VE-CG30U Service Manual page 18

VE-CG30U
VE-CG40U
5-2-3-3. Mechanical shutter open aperture adjustment/CCD sensitivity adjustment
[Purpose]
• Brightness of the optical system including the CCD imager is adjusted to obtain ISO100.
• Operation time in the open state of the mechanical shutter aperture is memorized and the variation of exposing time
is removed.
[Object]
• An evenly illuminated white object under the lighting described in "Preparation before adjustment and check
items".
[Procedures]
• After making the settings above, set <TEST 9> according to the procedures of 5-1 and execute it.
• Auto adjustment is executed.
• During adjustment, <EXECUTING> and the object are displayed on the LCD monitor.
• If <OK> appears on the LCD monitor, adjustment is completed.
• With <TEST 9>, the mechanical shutter opening adjustment and the CCD sensitivity adjustment are executed.
5-2-3-4. Mechanical shutter closed aperture adjustment
[Purpose]
• Operation time in the closed state of the mechanical shutter aperture is memorized and the variation of
exposing time is removed.
[Object]
• An evenly illuminated white object under the lighting described in "Preparation before adjustment and check
items".
[Procedures]
• After making the settings above, set <TEST A> according to the procedures of 5-1 and execute it.
• Auto adjustment is executed.
• During adjustment, <EXECUTING> and the object are displayed on the LCD monitor.
• If <OK> appears on the LCD monitor, adjustment is completed.
5-2-3-5. WB low color temperature adjustment
[Purpose]
• The variation of CCD spectral characteristic (R, G, B) at low color temperature (3200K) is removed.
[Object]
• An evenly illuminated white object under the lighting described in "Preparation before adjustment and check
items".
[Procedure]
• After making the settings above, set <TEST 3> according to the procedures of 5-1 and execute it.
• Auto adjustment is executed.
• During adjustment, <EXECUTING> and the object appear on the LCD monitor.
• If <OK> appears on the LCD monitor, adjustment is completed.
5-2-3-6. WB high color temperature adjustment
[Purpose]
• The variation of CCD spectral characteristic (R, G, B) at high color temperature (outside light, etc.) is removed.
[Object]
• An evenly illuminated white object under the lighting described in "Preparation before adjustment and check
items".
• Mount the color temperature conversion filter LB165 in front of the lens.
[Procedure]
• After making the settings above, set <TEST 4> according to the procedures of 5-1 and execute it.
• Auto adjustment is executed.
• During adjustment, <EXECUTING> and the object appear on the LCD monitor.
• If <OK> appears on the LCD monitor, adjustment is completed.
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