Spot Noise - Hitachi DZ-MV580EAU Service Manual

Adjustment > Adjustment Procedure

6-4-9 Spot Noise

Information:
1) The SPOT NOISE adjustment compensates for bright points that appear on the screen, and these
are caused by a defect in pixel of CCD image sensor that may occur when DVD video camera/
recorder is used under particular conditions or for a long time. Therefore, execute SPOT NOISE
only in the following cases:
a) Pixel defect occurs in CCD image sensor and a bright point appears on screen,
b) CCD image sensor (DZ-MV550E: Lens unit) is replaced
c) "Initial Data Write" is executed
2) The presence or absence of a bright point that appears on screen due to pixel defect on CCD
image sensor can easily be judged by capping the lens. Use a CRT color monitor for this check.
Procedure:
1) Choose SPOT NOISE on the ADJUST MENU screen.
2) Click the EXECUTE button on ADJUST MENU screen
to start adjustment.
When SPOT NOISE starts, the DVD video camera/
recorder will automatically turn on again.
3) When adjustment is complete, the ADJUSTMENT
FINISHED dialog will appear: Click the OK button in
dialog to restore the ADJUST MENU screen.
If bright point still appears after adjustment is finished,
the CCD image sensor (DZ-MV550E: Lens unit) may be
faulty.
ADJUST MENU screen
MANUAL ADJUSTMENT PROGRAM for SERVICE STATION
MODEL NAME:
ADJUST MENU
CONNECTION
ADJUSTMENT FINISHED dialog
FINISHED
ADJUSTMENT FINISHED.
6 - 33
××××
DATA INITIALIZE
VIDEO LEVEL
BURST LEVEL
SAMPLING PULSE
AUTO FUCUS
AUTO IRIS CONTROL
MATRIX
CHROMA GAIN
1
SPOT NOISE
LCD
EVF
2
EXECUTE RETURN
3
OK