IDEA Auto-SYNC with RGB/VGA/DVI Analog Video
108 TIMS MVP
™
Setup and Configuration Guide
AccuStream Auto-SYNC Wizard Step 1: Adjust HTotal for Analog
Connections
The first step is to adjust the Horizontal Total (HTotal). The HTotal is the number of pixels per
scan line in the video signal; some of these pixels are not part of the active video (e.g., porches
which are on the right and left side of the image) so HTotal represents the active plus the
inactive video signal measured as pixels. Increasing the HTotal widens the image which increases
the aspect ratio.
Note:
Be aware of the monitor format (your display, for example, is it 4:3 / 5:4 or 16:9), before
adjusting the HTotal. Your display monitor aspect ratio
should be set to the same aspect ratio as the video source.
Figure 18: Auto-SYNC Wizard Step 1
HTotal adjustments require a video image that highlights errors in aspect ratio. An image with
circles or squares or a text pattern is recommended.
If your video is interlaced, look at the image to see if text or diagonal/curved lines appear
ragged. If the text or lines do, try adjusting the Field Polarity to change the ordering of
fields/frames. Depending on the video pattern, changes to the field ordering may have
invalidated the results of the Auto-SYNC session. You may want to rerun Auto-SYNC to generate
a new CHP file.
Summary of Contents for TIMS 2000 EN
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