Rgb Video Diagnostics - Crestron CNX-DVP4 Operation Manual

Digital Video Processor
34 • Digital Video Processor: CNX-DVP4

RGB Video Diagnostics

Select Diagnostics from the MAIN MENU to access the RGB Diagnostics menu.
Use this menu to test and diagnose the RGB output. Adjust as necessary.
DVI, RGB and Video Diagnostics Menu
1. The Check Color Ramp Output displays graduated shaded Red, Green,
Blue, and gray scale test bars. The bars should appear smoothly graduated.
2. The Check Grid Output is a black and white image with two diagonal
lines forming an X from one corner of the screen to the other. All grid
boxes should appear uniform, the lines perfectly vertical and horizontal, and
all the same size. Use this to correct linearity problems, using pincushion,
keystone, and trapezoid, controls.
3. The Check Four DVI-RGB Inputs displays all four sources in a quad grid
simultaneously.
4. The Check S-Video Path buttons display the same S-Video source on four
windows. All color should match on each channel (refer to the following
note).
NOTE: If any of these inputs are composite, they are displayed in black and white.
5. The Composite Video Four Paths displays the same composite video
source in color, in four windows.
Crestron CNX-DVP4
Operations Guide – DOC. 8170A