Landing Adjustment - Sony PVM-9L2 Service Manual

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