Random Access Adjustment Mode
8-4
5975618A RETRO BLOCK GRAPHICS 2100LC 240898
selected to be edited.
The
'Active lines'
: number of horizontal lines determining the height
of the projected image. This value is normally given in the specification
of the source. If not, adjust until full image height is displayed (no
missing lines)
Vertical start
: number of lines between the start of the input signal
and start of the image on the screen.
Interlaced [On] or [Off]
: this selection is automatically filled when
active file has to be edited. If the image is wrong due to
mismeasurement, use the ENTER key to toggle between [On] and
[Off]. (for interlaced images, 1 frame contains 2 fields).
Read AMDS
AMDS = automatic mode detection & synchronization
During the installation of a file with LOAD, the system automatically
measured the horizontal period, the total vertical lines and the
interlaced mode.
When selecting Read AMDS, the system remeasures the above
indicated items.
Options
Source number
: The source number of a non-active source can be
changed to any other source number. This makes it possible to create
a file for future source numbers.
Clamp position
: Clamping determines the black level of the signal.
The clamp pulse can be related to the leading or the trailing edge of
the sync pulse. Use the
ENTER
key to toggle between [leading] and
[trailing].
Clamp delay
: The time between the leading edge of the clamp pulse
and the locked edge of the sync pulse.
This can be any value between 0 and 127. Change the value by
pushing the control stick to the left or to the right.
Clamp width
: The width of the clamp pulse
This can be any value between 0 and 127. Change the value by
pushing the control stick to the left or to the right.
Field polarity
: Default [auto]
[auto] = autodetection of the field polarity.
The field polarity function is used for interlaced images. Both rasters
of the image could be shifted in a wrong way (double lines are visilble
in the image). This can be corrected by forcing the field polarity to
[neg] or [pos].
Use the
ENTER
key to toggle between [auto], [pos] and [neg].
Vertical refresh [sync/async]
: The way of updating the image
information on the LCD panels.
* For sources with a vertical frequency up to 60 Hz : the vertical
refresh rate is the same as the vertical frequency of the incoming
source. This is a necessity to project moving images without 'motion
artifacts'. For stationary images with a vertical frequency up to 60
Hz it is still possible to use asynchronous refresh. When loading Pal,
Secam, NTSC-files syncronous mode is default, for all other sources
below 60 Hz asyncronous mode is default.
* For sources with a vertical frequency higher that 60 Hz : the vertical
refresh is different than the vertical frequency of the incoming
source. Synchronous refresh cannot be used.
Vertical sync polarity
: [leading] or [trailing]
The vertical refresh can be synchronised with the leading sync edge
or trailing sync edge. Default on [leading].
Toggling to [trailing] is only necessary for special applications where
the trailing edge of the sync signal has to be taken as a reference.
Use the
ENTER
key to toggle between [leading] or [trailing]
Select with
ê
or
é
<ENTER> to toggle
ç
or
è
to change value
<EXIT> to return
EDIT FILE OPTIONS
Source number
1
Clamp position
[leading]
Clamp delay
0
Clamp width
10
Field polarity [pos]
Vertical refresh
[sync]
Vert. sync polarity
[leading]
Frame delay
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