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The
following
adjustments are performed
in
Por-
I
10
Check
that
the Centring
magnets
are
set
to
trait
mode.
zero
and
observe
the
position of
the
test
picture
No. PF3P.
If
necessary
centre the
1
video
using the
DC
shift
controls
(VR10 and
6
In
portrait
mode
centre the
Video
informa-
1
VR3)
tion
with respect to
the
raster
using the
line
phase
control
(VR2).
(Test
picture
F6P)
1
11
Straighten
any bowing
of
the centre
lines of
the
test picture
No
PF1P
by
careful adjust-
7
If
t t
th
a
fi
t'
'
_
-
a
Cßïïïïïaßicïrå Érietaïiof
'°"
°°"
f°'"
meet
ef
the eeetrte
meeeete-
Reeefftte
the
left/right
margins using
the
DC
shift
cont-
Make
sure
that
thet
coils
are
pushed
hard
r°1S
(VR10 and
VR3)'
agaïnst the
tube
Cone and Cïamped
SeCure1y°
12
Adjust the
Focus
of
the
picture
for
optimum
8
Adjust the Fieid
Ampiitude
(VR9)
and
Fieid
a?
the
°e"t*e
°f
the
$°'te"-
5tlt°t
test
Linearity
(VR8).
Select
test picture
No.
pïcture
F8F7P°
PF1P.
13
Finally
check
the general
apperance
of
the
display
using
all
test
pictures
both
in
9
Adgust
the Line
Linearity coil
for
maximum
1
d
d
t
.t
d
If
d.
I
picture
width
(L1)
Then
carefully
readgust
an Scape
a"
por
ra;
m°
S'
:Vy
15%
Sy
this
control
for
correct
linearity
between
9e°metÜy pr°b1em
SUG
5?
pl"
Ca"
1°"
°r ar'
the centre
of
the
screen
and
the
LEFT
hand
re]
ex1StS°.the
°°rre°t1°Ü
magnets
Sh°u]d
be
margin edge.
(Be
careful with
the core
and
use
a
proper
tool).
I
,_
__.
\_ø
L
._-
å
ä
*
_
~
_-._
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Ci?
äïjššj
i
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tg
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H,
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/Ü
_
used,
see
figure for details.
Sj
\
vi
~
l
I
1
7.3.2
BLACK
LEVEL ADJUSTMENT
7.3.3
CORRECTION MAGNETS
TEST PICTURES
1
T
I
1
V
1
i
|
1
COMMAND
TEST
LANDSCAPE
PORTRAIT
F6
F6L-F6P
Vertical
alignment
test
Screen geometry
test
F8
F8L
F8+F7
F8F7L
F8F7P
-<
Screen
is
filled
with
double
width
upper case H's
If
key
F7
is
pressed
after
key_
Screen
is
filled
with
f§¿_The screen
is
filled
with
upper case. H's
for
focus
upper case. H's
for
focus
adjustment
adjustment
I
PF1
PF1L
PF1P
Crosse-ruled
testpicture
for
Cross-ruled
test picture
Field
and
line
linearity
adjustment
for
Field
and
line
linearity
adjustments
_
PF2
PF2L
Retur
to
TEST-MODE
TEXT
and ATTRIBUTES
for
|
Control
of
the Black
level
adjustment
PF3
PFZL
Screen
is
filled
with figures
Screen
is
filled
with
1234
-
0123
-
for
margin
figures
1234
-
0123
adjustments
for
margin adjustments
í
_
1
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