White Spot Compensation - JVC TK-C1480B Manuel D'instructions

White spot compensation

CCDs have the general characteristic that white spots appear on the screen when the CCD is
operated at high temperatures or when they are used with a slow shutter speed.
This unit has a built-in white spot compensation function to reduce these white spots.
(The number and the size of the white spots changes according to the use temperature, the
shutter speed, etc. Furthermore, there is a limit on the number of white spots that can be
compensated.)
Operation method
MA
C C D S P OT . .
C C
C A NC E L
E X C TE E U
h e a t u p 3 0 m i n i n a d v a n c e
n e e d L e n s – c a p t o e x e c u t e
S P T SCAN OK
E-38
I N T E NA N C E
D S P OT
O
1.
Attach a lens cap or similar.
• Prevent entry of light to the CCD.
• Switch on the camera power supply
and wait for at least 30 minutes.
2.
Display the MAINTENANCE
screen.
• Confirm that the cursor (>) is at the item
CCD SPOT.
3.
Press the SET button.
• The CCD SPOT screen will be dis-
played.
• If you do not want to perform white spot
compensation, move the cursor (>) to
CANCEL and press the SET button.
4.
Move the cursor (>) to EXECUTE.
5.
Press the SET button.
• White spot compensation will operate.
("SPOT SCAN OPERATION" is dis-
played during operation.)
6.
Confirm the display.
• When white spot compensation has
been performed correctly, "SPOT
SCAN OK" is displayed for about 5
seconds, and then return is made to
the CCD SPOT screen.
• When "SPOT SCAN ERROR: HIGH
LIGHT" is displayed, check that no light
enters into the CCD.
7.
Press the MENU button.
• Return to the MENU screen will be
made.