Sony CPD-100VS Operating Instructions (primary manual) - Page 23

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Howling (feed-back) is heard + Decrease the volume with -!] +/- buttons, or turn down the microphone input volume of the sound board. Picture is scrambled 4 Check your graphics board manual for the proper monitor setting on the monitor. • Check this manual and confirm that the graphic mode and the frequency at which you are trying to operate is supported. Even within the proper range, some video boards may have a sync pulse that is too narrow for the monitor to sync correctly. Color is not uniform 4 Trip the (!) switch once to activate the Auto-degauss cycle*. Screen image is not centered or sized properly • Adjust picture centering, size, or geometry (rotation/ pincushion) on the OSD (pages 16, 17). 4 Some video modes do not fill the screen to the edge of the monitor. There is no single answer to solve the problem. There is a tendency for this problem to occur on higher refresh timings. Picture is fuzzy • Adjust the contrast and brightness on the OSD (pages 13, 14). Some brands of SVGA boards have an excessive video output level which creates a fuzzy picture at maximum contrast. 4 Trip the (!) switch once to activate the Auto-degauss cycle*. Picture bounces or has wavy oscillations • Isolate and eliminate any potential sources of electric or magnetic fields. Common causes for this symptom are electric fans, fluorescent lighting, laser printers, etc. • If you have another monitor close to this monitor, increase the distance between them to reduce interference. • Try plugging the monitor into a different AC outlet, preferably on a different circuit. Picture appears to be ghosting or 4 Eliminate the use videc; extension cables and/or video switch boxes if this symptom occurs. Excessive cable length or weak connections can produce this symptom. A fine horizontal line (wire) is visible 4 This wire stabilizes the vertically striped Aperture Grille. The Aperture Grille allows more light to pass through to the screen giving the Trinitron CRT more color and brightness. Continued to the next page Troubleshooting 23

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Howling
(feed
-back)
is
heard
+
Decrease
the
volume
with
-!]
+/—
buttons,
or
turn
down
the
microphone
input
volume
of
the
sound
board.
Picture
is
scrambled
4
Check
your
graphics
board
manual
for
the
proper
monitor
setting
on
the
monitor.
•
Check
this
manual
and
confirm
that
the
graphic
mode
and
the
frequency
at
which
you
are
trying
to
operate
is
supported.
Even
within
the
proper
range,
some
video
boards
may
have
a
sync
pulse
that
is
too
narrow
for
the
monitor
to
sync
correctly.
Color
is
not
uniform
4
Trip
the
(!)
switch
once
to
activate
the
Auto
-degauss
cycle*.
Screen
image
is
not
centered
or
sized
properly
•
Adjust
picture
centering,
size,
or
geometry
(rotation/
pincushion)
on
the
OSD
(pages
16,
17).
4
Some
video
modes
do
not
fill
the
screen
to
the
edge
of
the
monitor.
There
is
no
single
answer
to
solve
the
problem.
There
is
a
tendency
for
this
problem
to
occur
on
higher
refresh
timings.
Picture
is
fuzzy
•
Adjust
the
contrast
and
brightness
on
the
OSD
(pages
13,
14).
Some
brands
of
SVGA
boards
have
an
excessive
video
output
level
which
creates
a
fuzzy
picture
at
maximum
contrast.
4
Trip
the
(!)
switch
once
to
activate
the
Auto
-degauss
cycle*.
Picture
bounces
or
has
wavy
oscillations
•
Isolate
and
eliminate
any
potential
sources
of
electric
or
magnetic
fields.
Common
causes
for
this
symptom
are
electric
fans,
fluorescent
lighting,
laser
printers,
etc.
•
If
you
have
another
monitor
close
to
this
monitor,
increase
the
distance
between
them
to
reduce
interference.
•
Try
plugging
the
monitor
into
a
different
AC
outlet,
preferably
on
a
different
circuit.
Picture
appears
to
be
ghosting
4
Eliminate
the
use
or
videc;
extension
cables
and/or
video
switch
boxes
if
this
symptom
occurs.
Excessive
cable
length
or
weak
connections
can
produce
this
symptom.
A
fine
horizontal
line
(wire)
is
visible
4
This
wire
stabilizes
the
vertically
striped
Aperture
Grille.
The
Aperture
Grille
allows
more
light
to
pass
through
to
the
screen
giving
the
Trinitron
CRT
more
color
and
brightness.
Continued
to
the
next
page
Troubleshooting
23