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KCMU000004
06/08/01
CAMERA – BACK
6. Level
– This control adjusts the level of the
DC-type auto-iris lens.
7. Phase
– Phase adjustment is used in multi-
camera systems when power is supplied from
different sources, thus causing the camera to be
out of phase. This, in turn, affects auto-switching
by causing rolling of the video during the switch
interval.
The vertical phase adjustment allows the
camera’s line lock sync to be adjusted from 0 to
360 degrees with zero line crossing the AC power
source.
To effectively use the phase adjustment, ensure
that all cameras are powered from the same
electrical source and that they are wired in a
similar fashion. Then, adjust the phase control on
the top of the camera until there is no rolling video
on the monitor when using the auto-switcher.
Continued on next page.
