SW-D7000U, 9CH. COLOR VIDEO MULTIPLEXERJVC PROFESSIONAL, IMAGING PRODUCTS 49The SW-D7000U will display the text ‘N/A’ if a camera is not detected on tape for 8 or moreconsecutive cycles during Playback. And if it is not flagged as a video loss camera the warningmessage ‘N/A’ will display signifying that it is Not Available. This is a warning message only, andcan appear during Playback on full-screen or multi-screen formats on Monitor-A.Several circumstances can cause the ‘N/A’ indication:" The camera may not have been in the record list at the time of recording." The camera may have been disabled at the time of recording." The images for that camera on tape have been corrupted and cannot be decoded at time ofPlayback." The VCR Play speed is very slow.This indicator helps the operator to tell the difference between images that are not being updatedduring Playback and images that are being updated from tape but have no movement within theimage.The indicator ‘A’ will be displayed with the corresponding camera image on Monitor-A if there was anactive alarm at the time that the recording was made.Decoding of videotapes recorded on alternative multiplexers will have indicators as follows;" SW-D7000U – “JVC”" Calibur – “CBR”" Calibur Lite – “DM/Mini”" Dedicated Micros – “DM/Mini”" Robot – “ROBOT”These indicators will appear only if the programmer has selected the corresponding menu optionunder VCR SETUP sub menu PLAYBACK FORMAT to decode tapes that were recorded onalternative multiplexers.NOTE: If the programmer attempts to Play back tapes which are not compatible with theselected format then the tapes will not be decoded correctly.Adjusting VCR brightness and contrast:The SW-D7000U provides a simple front panel adjustment to digitally adjust thecontrast and brightness of the Playback signal from the VCR. (This can also be usedto compensate for some VCRs, which output a higher or lower video signal level thanthe standard.)Select PLAY mode and then select the Playback camera image to be enhanced full-screen onMonitor-A. Use the arrow keys to adjust the signal.Brightness:Use the up/down arrow keys to adjust the brightness.Contrast:Use the left/right arrow keys to adjust the contrast.