LIS-SDI Rev.
2
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15
With switch 3
on
the output phase can be adjusted with respect to the Black&Burst. This is
called linesync mode. The output must be adjusted to a phase that keeps the total delay
through the card between 41 samples and 1 line and 41 samples.
Switch 4
Switch 4 turns on/off the TRS-Replace mode. With 4
off
the LIS-SDI is transparent to the
video data. With switch 4
on
the LIS-SDI will replace the SDI sync words with the sync word
generated by the internal video generator. This is a way to correct video that has wrong sync
words. When both switch 3 and switch 4 is placed in the
on
position, it is possible to do a
vertical shift of the video data with respect to the video sync words. Be careful. Audio and
edh-information is also shifted. The LIS-SDI will generate EDH information on the correct
EDH line after the vertical shifting.
7. Pushbuttons
LIS-SDI contains three pushbuttons.
7.1 Reset
The lower pushbutton is a reset switch (see Figure 3). It has the same effect as a power-on.
7.2 INC and DEC
These two buttons is used to fine adjust the horizontal delay in samples from 0 to 1715 in
525/60Hz and from 0 to 1727 in 626/50Hz.
The INC button will increase the delay and the DEC button will decrease the delay. There is
no wrap-around. The INC and DEC buttons will work even if Switch 1 (see section 6) is not
set to manual mode.
8. BCD switches
LIS-SDI contains four BCD switches. These switches are used to set the delay when the DIP-
switch 1 is set to manual mode, see section 6.
8.1
The upper BCD switch is not used on the LIS-SDI.
8.2 Lines delay
The second BCD switch from the top is used to adjust the phase in steps of hundred lines.
Summary
: The phase of the outgoing video with reference to Black&Burst may be adjusted.
