P.O. Box 749 Peekskill, NY 10566 Tel: (845) 737-7009 Fax: (845) 737-0426 Web: www.compuvideosystems.com
CCA-200 SIGNAL LEVEL ADJUSTMENT:
Without An Oscilliscope:
1) Turn all front panel controls to their minimum (-) Counter Clock Wise (CCW) positions
2) Connect the signal from the Video source that is located over 1000’ away. Connect a
monitor to one of the video outputs and make sure it is terminated in 75 ohms.
3) Pick an white object in the picture and while adjusting the “Line” pot, look for black or
white smearing on the edge of the object (See Figure 4). You want to minimize or
eliminate this smearing. Once this is done, adjust the “Gain” Clock wise (CW) to the
approx. center position. Check for smearing on the white object. Touchh up the “Line”
adjustment to optimize the smearing.
4) Adjust the “Gain” control for a normal picture level with out adjusting the monitor’s
brightness or contrast leaving it a little on the bright side.
5) Looking at the ne detail in the picture, adjust the “Hi Freq” control CW to get the
sharpest picture possible without it getting noisey. If no change is noted, leave at max
CW.
Dark Background
White
Smear
Fig. 3
Signal Level Adjust
