Crystal Vision
Card edge operation
18/02/03
Page
17
Using split screen test signals
The eight test signals (not ADC104N) may be displayed in split-screen mode (TPat
DOWN) whilst adjusting the horizontal picture position (Hpos DOWN).
Function
Notes
Tpat
Hpos
Normal
Up
Up
Eight full-screen and split-
screen test signals
Split-screen has incoming video in
bottom half, test signal in upper
half
Down
Up
Adjust horizontal position
of incoming video by +/- 2µ
using Adj/Sel
Hpos fine is always active
irrespective of and control surface
setting
Up
Down
Adjust horizontal position
of incoming video by +/- 2µ
using Adj/Sel, whilst
viewing a test signal
Use a split-screen test signal to
view both incoming video in the
lower half on the screen and an
internally generated test signal in
the upper half of the screen.
Down
Down
The available internally generated digital test patterns are:
•
Ramps
•
Edge of frame markers
•
Frequency sweep
•
Grey
•
Multi frequency burst
•
100% Colour Bars
•
EBU Colour Bars
•
SDI test
Card-edge LED assignments:
LED
Meaning
Notes
Error (red)
On
Off
No valid syncs on selected sync input
Valid syncs selected.
Input syncs can be extracted from
the Y/Green input or the external
sync input.
625/525
(amber)
Upper On
Lower On
625 input set or detected
525 input set or detected
Card jumpers set Auto or Manual
standard selection
Config
(green)
Upper On
Upper Off
Power on configuration has finished
Power on configuration is taking place
Usually lasts 2-3 seconds
5V (green)
Lower On
Lower Off
The o5V and –6V power rails
are OK
One or both of the o5V and –
6V power rails has a problem (low
value) or is not present.
5V LED illuminates for both +5V
and –6V power rails