ACTIVE-BALANCED SERIES
Adjusting the Controls
Properly setting the controls on your BVD-20, BVH-20 and BVR-20 will give you the maximum performance. Although they do come “pre-set” from the factory with many of the internal enhancements at optimum levels, we have no way of knowing the exact length of cabling that you will be using. Therefore we have provided a few simple controls for you to assist in the optimization of your system:
Cable Compensation: The Cable Compensation control on the BVD-20 and BVH-20 equalizes the video signal to counteract the effect of wire capacitance. As the run length of a Cat-5 cable is increased, the additional cable capacitance causes a loss of picture quality. The Active- Balanced circuitry in the BVD-20 /BVH-20 provides the means for correcting this with the Cable Compensation control. Note that this control is labeled in distance. Esti- mate approximately how long the cable run is from the BVD-20 /BVH-20 to the BVR-20 (no need to be precise here) and adjust the Cable Compensation control for that distance. It is useful to have a video test signal or a televi- sion picture with strong vertical lines to make the final adjustments. Set the Cable Compensation control for minimum smearing along the vertical lines.
Audio/Video Output: Simply, this control on the BVR- 20 adjusts the output level or gain on all four of the RCA connections. This level control helps make up for any “wire resistance” signal losses that may occur due to the length of the Cat 5 wiring.
10
