Operating Basics
24 SDA 601 Serial Digital Analyzer User Manual
3. The first I/O menu item is Highlighting. Use the A or " key to
select “Display,” then press Enter to confirm the choice.
4. While still in the I/O menu, press the B key once to scroll down
to the “Dim Video” item.
5. Toggle Dim Video to On with a horizontal arrow key, then press
Enter to confirm the choice. Dim Video reduces the video signal
by 50%, ensuring good contrast between the video signal and
highlighted pixels.
6. Exit the I/O menu by pressing any rectangular key.
7. If necessary, start or restart the Watch session by pressing Watch.
8. The default OSD will obscure any highlighting in the portion of
the picture that it occupies. Therefore, if the OSD is on, toggle it
off with the Insert On/Off key.
A convenient way to see the effects of Highlighting is to set either
the Data Value Group or the Video Over Range item to Watch, then
input a Pluge signal. The “sub-black” portion of active video will be
highlighted.
Note that the ANC highlight conditions occur in the horizontal or
vertical interval. Use Pulse Cross to “see” those conditions.
Pulse Cross
Pulse Cross is an SDA 601 AUX output mode that allows the user to
“see” the horizontal and/or vertical intervals, which are normally
blanked in serial video monitors. The original four-word timing ref-
erence signals (TRS, which contain EAV and SAV) are replaced with
legal video samples, and analog H and V sync information is inserted
in the original active picture region. To invoke pulse cross:
1. Enter the I/O menu (press Shift, then Insert On/Off).
2. Press the B key repeatedly to scroll down to the Pulse Cross
menu item.
3. With the A / " keys, scroll to the desired pulse cross option. The
options are:
Normal — the default
HCross — reveals the “horizontal interval” region of the signal
VCross — reveals the “vertical interval” region of the signal
Both — combines HCross and VCross