IHSE USA 437 Series DDXi DVI/VGA Extender - Manual (Page 39)

EXTENDER SETUP
39
8. With a poorly adjusted pixel clock you may see one or more vertical areas,
where the lines are smeared (see Figure 21a):
a. Return to the OSD utility and select the menu command:
Manually adjust the number of pixels per line (Pixelclock)
from the Image menu.
b. Adjust the pixel clock value until all stripes have disappeared.
c. Confirm the setting.
9. Problems with the pixel phase will cause horizontal noise, horizontal wave-
formed lines, flicker or smearing with zebra-pattern (see Figure 21b):
a. From the OSD’s Image menu, select the menu command:
Manually adjust the best phase (best point for A/D conversion within each
pixel)
.
b. Modify the phase until all distortions have disappeared.
c. Confirm the setting.
10. If appropriate, reattach your TFT monitor and adjust its image according to the
manufacturer’s instructions.
11. Reinstall your preferred desktop background picture.
Figure 21 Burst test pattern applied to desktop showing
problems with (a) pixel clock setting, (b) pixel phase
setting.
(a) (b)