Adjustment - Sony PVM-9L2 Service Manual

2-9. Deflection
Adjustment
Find the following adjustment
menu
in the layer
under
the
DEFLECTION
menu
of
the service
mode.
RASTER H
HSIZE
HBLKLEFT
H
POSITION
RASTER V
VSIZE
V
CENTER
VBLKTOP
GEOMETRY
VS
LIN
VCLIN
TRAPEZOID
SIDE PIN
SIDE PIN
W
SIDE PIN
BAL
PARA CONTROL
SIDE
PINS
1.
Connect
the
480/601
cross
hatch
signal to the
LINE
A
connector.
2.
Enter
the service
mode.
3.
Select the 4:3
normal
scan
mode
and check
the
followings.
(The
16:9 button
and
UNDER
SCAN
button
turn off.)
DY
Inclination Distortion check
Top
and bottom
V
PIN
Distortion
Check
If the specifications cannot
be
met, perform
the
DY
Neck
Rotation Adjustment.
4.
Perform
the horizontal trapezoid
distortion
adjustment
using the
TLY
volume
control of
D
Y.
If
the horizontal
trapezoid distortion
is
difficult to see, select
Green
Only mode.
If
the horizontal trapezoid
distortion
is
adjusted significantly, the top
and bottom
vertical
convergence
will
become
out of adjustments.
5.
Connect
the 480/601
monoscope
signal to the
LINE
A
connector.
7.
8
.
9.
6.
Adjust
|V
CENTER
of
the
menu
until picture
comes
to the center
of
the screen in the vertical direction.
Connect
the
480/601
cross
hatch
signal to the
LINE
A
connector.
Adjust
I
V C
LIN
I
and |V
S
LIN
|
so that the
ratio
between
the
upper and lower
halves of th
e
screen
becomes
normal.
Then
adjust
|V
SIZE]
to
make
the
screen
sizes as specified in
4
:
3
underscanned 4:3,
16
:
9 underscanned 16
:
9.
Adjust
trapezoid disto rtion
and
PIN
distortio
n
at
the
comers
of screen with
I
SIDE PIN S
PARA CONTROL
TRAPEZOID
,
SIDE
PIN
BALL SIDE
PIN
SIDE
PIN
W
H SIZE
.
Then
adjust the
to the specified seizes of
4
:
screen
size
with
|
3
and 16
:
9
10.
Repeat
adjustments
from
step 7 to step 9
imtil
aU
specifications are satisfied at the
same
time.
(Tracking)
1 1
.
Repeat
adjustments
from
step
7
to step
9
starting
from
the
4
:
3
UNDER
SCAN
mode,
then 16
:
9
NORMAL
SCAN
mode
and
fmaUy
16:9
UNDER SCAN
mode.
(JAJC)
12.
Perform
the
same
adjustment
for the
575/501 video
signal.
Horizontal
frequency Signal specification
ASPECT
ratio
15.625
kHz
575/501
16:9/4:3
15.734
kHz
480/601
16:9/4:3
VS
LIN
V C
LIN
PARA
CONTR
OL
TRAPEZOID
SIDE
PIN
BAL
<=1
SIDE
PIN
Screen
Size Specification
(When
inputting a crosshatch signal of
H
:
16 hatches
and
V
:
10 hatches
from VG-854)
480/601
4
:
3
normal
scan
H:
15.0
±0.2
hatches
V
:
9.3
±0.2
hatches
4
:
3
underscan
H
:
147
±2
mm
V:
no
±2
mm
16:9
normal
scan
H:
15.0
±0.2
hatches
V
:
95.5
±2
mm
16
:
9
underscan
H
:
147
±2
mm
V:
83
±2
mm
575/501
4
:
3
normal
scan
H:
15.2
±0.2
hatches
V
:
9.35
±0.2
hatches
4
:
3
underscan
H
:
147
±2
mm
V:
110±2mm
16:9
normal
scan
H
:
15.2
±0.2 hatches
V:94.5±2mm
16:9
underscan
H:147±2nmi
V
:
83
±2
mm
PVM-9L2
2-15