beautypg.com

The cvt/gtf method – Extron Electronics VN-MATRIX User Guide User Manual

Page 80

background image

Section 4: Advanced Setup Procedures

VN-MATRIX User Guide

Page 80

I458GB issue 6

The CVT/GTF Method


GTF and the newer CVT are a standardized approach to creating video formats.

To select a GTF format the user must input Active Pixels, Active Lines, Frame Rate and the margins
flag, then click the GTF button . All other fields will then be filled in with the nearest suitable GTF video
format.

A CVT video format is similarly selected. However CVT also supports the reduced blanking flag.
Reduced blanking allows LCD panels, which do not require as long a blanking period as CRTs, to
support a higher resolution for any fixed maximum pixel clock rate.

After a suitable video format has been created and tested it can be saved to non-volatile storage by
clicking on Save Formats. This video format will then be available after a device reset or power cycle.

Unwanted user video formats can be deleted by selecting the video format to delete and clicking on
Delete. A Save Formats operation is then required to delete this format from non-volatile storage.