JVC SW-D7000U Instruction Manual page 49

SW-D7000U, 9CH. COLOR VIDEO MULTIPLEXER
The SW-D7000U will display the text 'N/A' if a camera is not detected on tape for 8 or more
consecutive cycles during Playback. And if it is not flagged as a video loss camera the warning
message 'N/A' will display signifying that it is Not Available. This is a warning message only, and
can 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 of
Playback.
" The VCR Play speed is very slow.
This indicator helps the operator to tell the difference between images that are not being updated
during Playback and images that are being updated from tape but have no movement within the
image.
The indicator 'A' will be displayed with the corresponding camera image on Monitor-A if there was an
active 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 option
under VCR SETUP sub menu PLAYBACK FORMAT to decode tapes that were recorded on
alternative multiplexers.
NOTE: If the programmer attempts to Play back tapes which are not compatible with the
selected 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 the
contrast and brightness of the Playback signal from the VCR. (This can also be used
to compensate for some VCRs, which output a higher or lower video signal level than
the standard.)
Select PLAY mode and then select the Playback camera image to be enhanced full-screen on
Monitor-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.
JVC PROFESSIONAL, IMAGING PRODUCTS 49