Barco R9002321 Owner's Manual page 150

As the BARCOVISION 708 MULTIMEDIA is digitally controlled, all geometry and
convergence adjustments are stored in the projector’s memory as numeric values.
These numeric values are used to control digital potentiometers which in turn,
control the projector. Each source connected to the projector has a unique set of
adjustment data which is automatically downloaded into the projector’s digital
potentiometers as the source is selected. This set of adjustment data is referred
to as an
An adjustment table is automatically created for a source when the source is first
connected to the projector and the adjust mode is entered. If other sources have
already been connected to the projector and geometry and convergence adjust-
ments have been performed on these sources, the projector will use Linear Digital
Interpolation to create a new block for the new source. This block will provide an
initial set of adjustments for the new source that have been calculated by the
projector from “previous experience”.
The projector’s memory has the capacity to store 32 adjustment blocks. The
adjustment block consists of two parts, the block header and the data representing
the convergence and geometry adjustments of the source the block corresponds
to. The block header contains the basic characteristics of the source and the
projector configuration used to display the source.
Block number
Source number
Horizontal frequency
Vertical frequency
Input type
Scan inversion switch configuration
The data representing the geometry and convergence adjustments for the source
follows the block header.
A. Projector without any peripheral connected to the 'peripheral
800 port'
Connect a new source to the projector. Due to the fact that there are no adjustment
R5975059 BARCOVISION 708 MULTIMEDIA 200498
.
01
01
15.6 kHz
50 Hz
video
front/ceiling
D-1