Linearity [Dz-Hs303A Only] - Hitachi DZ-HS303A Service Manual

Adjustment > Adjustment Procedure
6-4-7 Linearity
[DZ-HS303A only]
Preparation:
Set zoom to wide-angle end, and point at light
box without chart, fi lling the screen.
Procedure:
ADJUST MENU screen
MANUAL ADJUSTMENT PROGRAM for SERVICE STATION
××××
MODEL NAME:
ADJUST MENU
DATA INITIALIZE
VIDEO LEVEL
BURST LEVEL
AUTO FUCUS
AUTO IRIS CONTROL
SAMPLING PULSE
LINEARITY
MATRIX
CHROMA GAIN
SPOT NOISE
LCD
2
EXECUTE
CONNECTION
1) Choose LINEARITY.
2) Click the EXECUTE button to start
adjustment.
The progress status can be confi rmed using
the PROGRESS STATUS dialog.
PROGRESS STATUS dialog
LINEARITY
PLEASE WAIT A MOMENT
ADJUSTMENT FINISHED dialog
FINISHED
ADJUSTMENT FINISHED.
3
OK
3) Click the OK button in dialog to restore the
ADJUST MENU screen.
1
RETURN
6 - 29
Information:
If the brightness (brightness levels) or colors
are different on the left and right of monitor
screen bounded at the center, after the linearity
adjustment ends, perform the following. If the
symptom reappears after troubleshooting is
complete, the lens unit may be faulty.
Troubleshooting:
1) Adjust "6-4-6 Sampling Pulse".
2) Readjust the linearity.
LINEARITY ADJUSTMENT ERROR dialog
ERROR
Linearity Adjustment Error
OK
If the LINEARITY ADJUSTMENT ERROR
dialog appears, click the OK button in dialog,
perform the appropriate corrective action,
and then perform readjustment. If the
LINEARITY ADJUSTMENT ERROR dialog
still appears after the corrective action, the
lens unit may be faulty:
a) Turn the light box off, and then make
sure that no surrounding light refl ects
on glass surface of light box. If any
surrounding light does refl ect on it,
perform adjustment in a place where
no surrounding light will affect the
adjustment.
b) Widen or shorten the distance
between the light box and DVD video
camera/recorder.