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PVM-8041Q/8044Q
Screen-corner
Convergence
3-3.
FOCUS
1
.
Receive
the broadcast.
2.
CONTRAST
^
Normal
3.
Adjust
FOCUS
control so
that
the
focus
on
the center
of
screen
becomes
to the
best.
3-4.
WHITE
BALANCE
[Screen (G2) Voltage Adjustment]
1
.
Receive
a dot
signal
with
the pattern generator.
2.
Adjust R. G.
B
cut-off controls so
that
respective
cathode
voltage
against
ground
becomes
103
V
DC.
3.
Observing
the screen, adjust
SCREEN
control so
that
the
back-
ground
of
the
dot
signal
is
bright
dimly.
[White Balance]
1.
Receive
a color-bar pattern signal
with
the pattern generator.
(Make
black
and
white
screen
by chroma
switch
off.)
2.
•
BRIGHTNESS
50%
•
CONTRAST
Minimum
•
CHROMA
50%
•
DRIVE
control
Mechanical
center
•
BKG
control
Mechanical
center
3.
Adjust
RV118 (SUB BRT)
on
B
board
so
that
the
blue
stripe
portion
on
the color-bar pattern signal
is
bright
dimly.
color-bar pattern
,
,
4.
Receive an
entirely
white
signal
from
the pattern generator.
5.
CONTRAST
70%
(90 degree
clockwise
from
mechanical
center.)
6.
Using
the
luminance
level
meter, adjust
the
luminance
level
of
the
pattern
generator
becomes
3
Nits.
(The
condition
the
screen
is
bright dimly.)
7.
Adjustwhitebalanceatcut-offusingRVl
19(G-C/0)andRV121
(B-C/0).
8.
Change
the all-white signal
luminance
level to
1
00
IREs.
9.
Adjust white balance
at
high-light
using
RV120
(G-GAIN)
and
RV121
(B-GAIN).
10.
Change
the unit
to
blue
ONLY
mode.
11.
Adjust white
balance
(at
high-light)
in
blue
ONLY
mode
using
RV124
*R-GAIN/BL)
and
RV125
(G-GAIN/BL).
12.
Using
the
luminance
level
meter,
adjust the
luminance
level
of
the
pattern
generator
becomes
8
Nits.
Confirm
that
white balance
at
cut-off
is
satisfactory..
—
19
—
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