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Set-up Adjustment; Preparations - Sony PVM-9L2 Service Manual

Trinitron color video monitor.
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  • Contents

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Section 2
Set-up
Adjustment
2-1.
Equipment
Required
2-2.
Preparations
(1
)
•
Oscilloscope
Tektronix
2465
or equivalent (with
bandwidth of 350
MHz)
•
NTSC/PAL
component
signal
generator
Tektronix
TG2000
+AVG1
(option
module)
+AWVG1
(option
module)
or equivalent
•
SDI
signal
generator
Tektronix
TSG-422
•
Monoscope
signal
generator
ShibaSoku
TP22AX
or equivalent
•
VG
(programmable
video
signal
generator)
VG854
or equivalent
•
Frequency
counter
Advantest
TR5821AK
or
equivalent
•
Digital
VOM
Advantest
TR6845
or equivalent
•
Slide induction
transformer
•
High
tension voltmeter
•
DC
power
supply
•
Ammeter
•
Luminance
meter
Minolta
CA-100
or
equivalent.
If
the
Minolta
CA-100
is
not
available,
perform
the
measurement by
visual inspection
by comparing
the
monitor
that
has
already
been
adjusted
earlier
with
the
monitor
that
you
want
to adjust.
I
Note
I
Start
the
following adjustments 5 minutes
after
the
main
power
is
turned
on.
* In
this
chapter,
service
mode.
indicates
the control
items
in
the
Example
;
|60
H-FREQ
Service
Mode
This
set
is
provided with
a
switch
for service
on
the front
panel
that
can be used
to
make
various adjustments.
The
operation
method
of
this
switch
is
explained
in detail
below.
1
.
Entering
the service
mode
Simultaneously
press the
[ENTER]
key
and
the
[DEGAUSS]
key
shown
on
the display of the
menu.
2.
Operating
the
Service
Mode
Select the desired service
item with
the
[{^],
[^]
key
and
press the
[ENTER]
key
to
enter the
adjustment
mode.
Press the [^]
key
to
increase the
adjustment
value.
Press the
[{^]
key
to
decrease
the
adjustment
value.
Press the
[ENTER]
key
to
save
the
adjustment
value.
Press the
[MENU]
key
to
cancel the
entry.
3.
Finishing
the service
mode
Simultaneously
press the
[ENTER]
key
and
the
[DEGAUSS]
key
shown
on
the display of the
menu.
4.
Easy
ON/OFF
of
the service
mode
If
once
entering the service
mode
after
having
turned
on
the
power, easy
ON/OFF
is
possible
by once
more
pressing the
LINE
A,
LINE
B,
OPTION
A
or
OP-
TION B
switch
on
the front
panel
(the
LED
lights)
as
long
as the
power
is
not turned
off
or
as
long
as
the
service
mode
is
not
finished.
PVM-9L2
2-1

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