Olson Technology LCP-500-550 - Manual (Page 5)

025-000235 REV C Page 5
C) To adjust the delayed AGC threshold level for cable operation.
1. Connect a cable signal carrying three adjacent channels at a level of +15dBmV maximum to
the RF input connector.
2. Set the input channel and band select DIP switches to the channel located in the center carrier
frequency (of the three channels).
3. Adjust the demodulator delayed AGC control (R32) slightly for the least amount of adjacent
channel interference while viewing the picture on a video monitor or through a modulator.
4) OUTPUT CHANNEL SELECTION
Remove the small cover plate from the front panel to expose the channel select switches and the F.C.C.
offset adjust control as shown in Figure 3.
FIGURE 3 - Output Channel Select/Offset Adjust
Channel selection is made by properly setting the 12-position DIP switches to the corresponding channel
code. Channel codes are shown in Table 1 and on the code card attached to the cover plate. Set the DIP
switches from left to right. For example, if channel 11 is desired, its corresponding channel code is: