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3-3-3.
Bright
Calibration
Adjustment
Object:
Resolution
pattern
Preparation:
Turn
Q@RV4/SW
board(BRIGHTESS
)—~
fully
counterclockwise.
Turn
Q@RV2/SW
board(CONTRAST)—
fully
clockwise.
Adjustment:
Adjust
the
picture
by turning
QRV3/SW
board
counterclockwise
from
the
rightmost
position
so
that
the
black
and
white
gradation
scale
is black
up
to
the
third
step
and
the
fourth
step
is
recognizable.
SW
BOARD
(COMPONENT
SIDE }
DXF-325CE (EK)
3-3-4.
Focus
Adjustment
Note:
Step
3-3-5.
Picture
Frame
Adjustment
and
this
adjustment
affect
each
other.
Repeat
these
adjustments
until
both
specifi-
cations
are
setisfied.
Object:
Resolution
chart
Equipment:
Waveform
monitor
Preparation:
1.
Iris
selector(Lens)
"MANU"
2. BRIGHT
control(Viewfinder)
—» mechanical
center
3. CONTRAST
control(Viewfinder )
—-
fully
clockwise()
4, PEAKING
switch( Viewfinder)
—~
"OFF"
Adjustment:
1. Adjust
the
zoom
control
so
that
the
resolution
chart
touches
the
underscanned
picture
frame
on
the monitor.
Monitor
Screen
2. Adjust
iris
control
so
that
the
peak
level
at TEST
OUT
terminal
is 700+10mv.
3.
Adjust
QRV20(FOCUS)/MAIN
board
so
that
the
picture
on
the
viewfinder
is best
focused.
3-3
TET
LATHAT
3. ALIG
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