Step 4 – Adjusting the video compensation
(PC, SUN,
(No video compensation is required for the MINI model)
Video compensation adjustments should only be needed if your
Start an application, (preferably a windows application), and look at the right edge of a large horizontal object such as a title bar. If there is black smearing on this edge, the video is under compensated. Rotate the Sharp control on the Remote Unit clockwise until the smearing disappears and the edge starts to become very bright. At this point, the video is overcompensated. Rotate the Sharp control counterclockwise until the edge has no smearing or over brightness. The video compensation is now adjusted correctly for the cable length used in your system.
The Bright control adjusts the brightness of the overall picture. Adjust the Bright control on the Remote Unit to suit your needs. The Sharp control may have to be slightly readjusted after adjusting the Bright control.
Note: The CrystalView video compensation system is designed to produce very good quality video on short to medium length cables and acceptable quality video over cable lengths greater than 500 feet.
In some installations the location of the CPU and the location of the CrystalView Local Unit requires a greater distance than the system is designed for. This extra cable length from the keyboard port on the CPU to the Local Units keyboard connector can cause a power loss. Since the Local Unit gets its power from the keyboard port of the CPU, this loss may be enough to effect its operation. This also may occur when using a wireless keyboard. To correct a decrease in power, a supplemental power adapter may be required on the Local Unit keyboard connector. (See Appendix C. Parts and cables)
If you are connecting a Laptop computer to the Local Unit, it is highly recommended that a power adapter be used to supplement the Local Units power. Operating the laptop exclusively on battery power alone is not recommended.
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CRYSTALVIEW INSTALLATION AND OPERATIONS MANUAL