Black Box ACS4004A-R2-MM Network Hardware User Manual


 
724-746-5500 | blackbox.com
724-746-5500 | blackbox.com
Page 37
Chapter 4: Service Setup
8. Problems with the pixel phase will cause horizontal noise, horizontal wave-formed lines, flicker, or smearing with a zebra-
pattern:
Figure 4-22. When manually adjusting the pixel phase, you may see the type of noise that's shown here.
You can use the OCD command Manually adjust the best phase to remove this distortion.
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.
9. If necessary, adjust the size of the visible part of the picture.
(The horizontal and vertical size is displayed in numeric values
for exact adjustment.)
10. If necessary, adjust the position of the visible part of the screen.
It may be necessary to adjust the picture size (Step 9) again.
11. If appropriate, re-attach your TFT monitor and adjust its image according to the manufacturer’s instructions.
ACS4002A-R2