Sony CPD-1730 Operating Instructions (primary manual) - Page 16

Appendix

Get Sony CPD-1730 PDF manuals and user guides View all Sony CPD-1730 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 16 highlights

Appendix Sony Display Memory System The CPD-1730 incorporates the Sony Display Memory System (SDMS) that allows it to discriminate between the types of input signals and to automatically display the optimum picture. The SDMS has a large-capacity non-volatile memory in which the display conditions for each input signal is stored. When the signal is input, the corresponding display conditions are called back from the memory and the unit is automatically adjusted for the signal. It also has a video muting function. The function eliminates display distortions that may occur when the input video signal is changed. Detailed explanation of the SDMS memory and the muting function are given below. The SDMS memory There are two types of memory: factory-preset memory and user memory. Factory-preset memory As explained in "Preset Mode" on page 7, optimum display conditions for the 9 preset-type models (see the chart to the right) are stored the memory area at the factory. No manual adjustment is necessary for these preset-type models. However, the contents in this memory area can be modified by users. If you modify conditions while the signals are input from a preset-type model, the newly set conditions will be stored in this memory area. Priority is given to the modified conditions. User memory The manual adjustments and modifications of an existing condition you make and the conditions of unique video signals are stored in this memory area. They are stored together with the type of the input signal and called back from the memory when the signal is input again. If you modify the condition already stored in the user memory, only the corresponding values are changed. The modified condition is not newly added to the memory. 1 MCGA 2 VGA Text 3 VGA Graphic 4 8514A 5 SVGA 800 x 600 6 SVGA 1024 x 768 7 Sony Standard 8 Macintosh 640 x 480 9 Macintosh 832 x 624 The factory-preset conditions can be modified by user input. Upon reset of the system, all the contents of the user modifications are cleared, and reset to the factorypreset conditions. 1 2 3 The user can store 4 the conditions for 5 up to 9 unique 6 video signals in this 7 memory area. 8 9 If more than 9 conditions are programmed into the user memory area, the last input condition will replace the first user input. ♦ The 10th entry moves to 1st location in the user memory. Sony Display Memory System memory map The video muting system If the input video signal changes, the muting circuit senses the change and mutes the screen. This function eliminates scrambled images during the scanning transition. Video frequency or sync polarity change Muting New video frequency or sync polarily On display Dark screen On display Note The muting duration differs depending on the time that takes until the newly input signal is stabilized. It will last a minimum of 1.5 seconds approximately. 16

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
Appendix
Sony
Display
Memory
System
The
CPD-1730
incorporates
the
Sony
Display
Memory
System
(SDMS)
that
allows
it
to
discriminate
between
the
types
of
input
signals
and
to
automatically
display
the
optimum
picture.
The
SDMS
has
a
large
-capacity
non-volatile
memory
in
which
the
display
conditions
for
each
input
signal
is
stored.
When
the
signal
is
input,
the
corresponding
display
conditions
are
called
back
from
the
memory
and
the
unit
is
automatically
adjusted
for
the
signal.
It
also
has
a
video
muting
function.
The
function
eliminates
display
distortions
that
may
occur
when
the
input
video
signal
is
changed.
Detailed
explanation
of
the
SDMS
memory
and
the
muting
function
are
given
below.
The
SDMS
memory
There
are
two
types
of
memory:
factory
-preset
memory
and
user
memory.
Factory
-preset
memory
As
explained
in
"Preset
Mode"
on
page
7,
optimum
display
conditions
for
the
9
preset
-type
models
(see
the
chart
to
the
right)
are
stored
the
memory
area
at
the
factory.
No
manual
adjustment
is
necessary
for
these
preset
-type
models.
However,
the
contents
in
this
memory
area
can
be
modified
by
users.
If
you
modify
conditions
while
the
signals
are
input
from
a
preset
-type
model,
the
newly
set
conditions
will
be
stored
in
this
memory
area.
Priority
is
given
to
the
modified
conditions.
User
memory
The
manual
adjustments
and
modifications
of
an
existing
condition
you
make
and
the
conditions
of
unique
video
signals
are
stored
in
this
memory
area.
They
are
stored
together
with
the
type
of
the
input
signal
and
called
back
from
the
memory
when
the
signal
is
input
again.
If
you
modify
the
condition
already
stored
in
the
user
memory,
only
the
corresponding
values
are
changed.
The
modified
condition
is
not
newly
added
to
the
memory.
1
MCGA
2
VGA
Text
3
VGA
Graphic
4
8514A
5
SVGA
800
x
600
6
SVGA
1024
x
768
7
Sony
Standard
8
Macintosh
640
x
480
9
Macintosh
832
x
624
1
2
3
The
user
can
store
4
the
conditions
for
5
up
to
9
unique
6
video
signals
in
this
7
memory
area.
8
9
The
factory
-preset
conditions
can
be
modified
by
user
input.
Upon
reset
of
the
system,
all
the
contents
of
the
user
modifications
are
cleared,
and
reset
to
the
factory
-
preset
conditions.
If
more
than
9
conditions
are
programmed
into
the
user
memory
area,
the
last
input
condition
will
replace
the
first
user
input.
♦
The
10th
entry
moves
to
1st
location
in
the
user
memory.
Sony
Display
Memory
System
memory
map
The
video
muting
system
If
the
input
video
signal
changes,
the
muting
circuit
senses
the
change
and
mutes
the
screen.
This
function
eliminates
scrambled
images
during
the
scanning
transition.
Video
frequency
or
sync
polarity
change
Muting
On
display
Note
Dark
screen
New
video
frequency
or
sync
polarily
On
display
The
muting
duration
differs
depending
on
the
time
that
takes
until
the
newly
input
signal
is
stabilized.
It
will
last
a
minimum
of
1.5
seconds
approximately.
16