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Landing Adjustment - Sony PVM-9L2 Service Manual

Trinitron color video monitor.
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2-7.
Landing Adjustment
1.
CONTRAST...
MAX
BRIGHT... Conspicuous
position
2.
Roughly
adjust the
white
balance,
G2, and
conver-
gence.
3.
Switch
the
video
signal
generator output
signal to
green
only.
4.
Adjust
the purity
knob
so
that the
green
will
come
to
the center of the
screen.
Make
R
and
B
almost
identical. (Fig.
2-1)
5.
Switch
to
B
only,
R
only,
and
G
only
and
verify each.
(Figs.2-1, 2-2,
and
2-3)
6.
Bring
the deflection
yoke
gradually
forward and
adjust
the deflection
yoke
so
that
R
and
B
on
both
sides
of
the screen
will
be
green. (Fig.2-2
>
Fig.
2-3)
7.
If
the deflection
yoke
comes
forward
too
much,
the
pattern
shown
in
Fig.
2-4
will
appear.
If so,
move
the
deflection
yoke
backward.
(Fig.2-4
Fig.2-3)
8.
Switch
the single
color switch
to
B
and
verify the
single
color.
(Fig.2-6)
9.
Switch
the single
color switch
to
R
and
verify the
smgle
color.
(Fig.2-9)
10.
When
two
colors are
mixed,
set
the
mixed
color
as the
standard,
and
repeat
steps
6 and
7.
11.
Switch
to
an
all-white signal
and check
the uniformity.
12.
When
the deflection
yoke
position
is
determined,
fasten
it
with the
fixture.
Fig.
2-1
,
{
R
<
<
<
fi
>
;b
A
A'
Fig.
2-2
Fig.2-3
Fig.2-4
Fig.
2-5
Fig.
2-6
Fig.
2-7
Fig.
2-8
Fig.
2-9
Fig.
2-10
Purity control
Fig.
2-12
I
Note
I
Attach
the
magnets
inside the
NTC
for
the
model
PVM-
9L2
referring to Fig. 2-13.
PVM-9L2
2-13

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