Crystal Vision
Card edge operation
DEC104S User Manual R1.0
25
29/10/04
Setting video standard and decoder options
The six-lever switch to the left of the card edge matrix display is used to configure the
main options.
10 bit or 8 bit processing
525, 625 or automatic line standard selection
Composite or Y/C decoder input
VBI blanking ON/OFF
Lever
UP
DOWN
Lever 1
Automatic switching between 10 and 8
bit mode
10 or 8 bit mode selected manually using lever
5
Lever 2
Automatic switching between 625 and
525 line standard
625 or 525 standard selected manually using
lever 6
Lever 3
Composite input
Y/C (S-video) input.
Lever 4
VBI data passed unprocessed on
luminance channel
VBI data blanked
Lever 5
Forced to 10 bit
Forced to 8 bit
Lever 6
Forced to PAL 625 line standard
Forced to NTSC 525 line standard
Forcing the video standard
The video standard can be forced by using jumper lever 6 in conjunction with lever 2 of
the six-lever switch.
Note:
10 bit mode is not available in NTSC when Y/C is selected. Use the DEC102S for 10 bit
mode with NTSC inputs in Y/C format.
Vertical Blanking Interval data is normally present in PAL on lines 7-22 and 319-335
and in NTSC on lines 10-20 and 273-282.
Setting decoder modes
There are five decoder modes, selected by a combination of the four-lever switch, Adjust
control and on-board jumpers:
Comb – 10 bit adaptive comb decoder mode
Bandsplit – 10 bit HIGH QUALITY bandsplit mode for PAL inputs only
Simple – 8 bit decoder mode
