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SECTION
3
SET-UP
ADJUSTMENTS
•
The
following
adjustments should be
made when
a
complete
realignment
is
required or
a
new
picture
tube
is
installed.
•
These adjustments
should be
performed
with
rated
power
supply
voltage unless
ontherwise
noted.
The
control
and
switch
below should be
set
as follows
unless otherwise
noted
:
CONTRAST
control
80%
BRIGHTNESS
control
50%
Perform
the
adjustments
in
order as follows
3-1.
Beam
Landing
3-2.
Convergence
3-3.
Focus
3-4.
White
Balance
Note
:
Test
Equipment
Required.
1.
Color
Bar/Pattern
Generator
2.
Degausser
3.
Color
Annalyzer
(Minolta)
4.
Luminance
Level
Meter
5.
Oscilloscope
Precaution
•
Set the side
of the
unit
with the
PICTURE
TUBE
so
that
it
faces east
or
west
in
order to
reduce
the influence
of external
magnetic
force.
•
Turn
the
power
switch
for
the
unit
ON
and
erase
the
magnetic
force using
a
degausser.
3-1.
BEAM
LANDING
1.
Receive an
entirely
white
signal
with the pattern
generator.
CONTRAST
MAX.
BRIGHTNESS
set
easy
to
observe
2.
Adjust
the
focus
and
the horizontal
convengence
roughly.
3.
Loosen
the deflection
yoke mounting
screw,
and
set
the
purity
control
to the
center as
shown
in
Fig.
3-1.
4.
Switch
over the pattern generator
to green.
5.
Move
the deflection
yoke backward, and
adjust
with the
purity
control
so
that
green
is
in
the
center
and
blue
and
red are
at
the
sides,
evenly.
(Fig.
3-2)
6.
Move
the
deflection
yoke
forward,
and
adjust
so
that
the
entire
screen
becomes
green.
Repeat 5
to
1
7
as
to
red
and
blue.
7.
When
landing
at
the
corners
is
not
right,
correct
by using
the
magnet.
(Fig.
3-3)
8.
When
the
position
of
the
deflection
yoke
is
determined,
tighten
it
with
a
deflection
yoke
mounting
screw.
Fig.
3-2
-
12
-
Fig.
3-3
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