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Sony PVM-9L2 Service Manual Page 28

Trinitron color video monitor.
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2«17.
Focus Adjustment
2-18.
V
BLK
Adjustment
Find
the
following adjustment
menu
in
the layer
under
the
The
following adjustment sub
menus
are located
in
the
DEFLECTION
menu
of
the service
mode.
layer
under
the
DEFLECTION
menu
of
the Service
Mode.
FOCUS
HDFPARA
HDF
PHASE
1.
Connect
the
480/601
crosshatch
signal to
the
LINE
A
connector.
2.
Perform
the coarse focus adjustment
until
focus
is
optimized
at
the center of screen
using
the
following
adjustments.
RV707
on
C
board
RASTER
V
VSIZE
V
CENTER
V
BLK
TOP
1
.
Connect
the
480/601
crosshatch signal
to
the
LINE
A
connector.
2.
Adjust
the
BRIGHT
control
on
the
operation panel so
that raster
becomes
visible
on
screen.
3.
Press the
UNDER
SCAN
button
to
enter
the
under-
scan
mode.
4.
Press the 16:9 button
on
the
operation panel
to
enter
the 4:3
mode.
(LED
tu
rns
off.)
5.
Adjust
V
BLK
TOP
so
that
the
upper
blanking
is
aligned
with
the
video
signal scarcely.
6.
Switch
the
video
input
to
the
575/501
signal
and
perfor
m
the
same
adju
stment.
7.
Adjust
V
BLK
TOP
of
the
menu
so
that
the
upper
blanking of screen
is
immediately before
the
upper
end
of video
signal.
V
2-21
PVM-9L2

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