Elmo QNW4000 User Manual
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INT/LL switch
INT (internal) control switch
When the internal synchronization is used, set the switch to the INT side.
LL (Line-Lock) control switch
Matching the vertical synchronization with the power frequency is called the line-lock.
When two or more cameras are switched by the video switcher to a monitor TV, the vertical
sync. phase can be locked with the power frequency, and a stable vertical sync. is obtained
without being disturbed at the time of switching.
Line-lock is operative only when the AC 24V power supply is connected.
Caution:
1. The camera is synchronized to the power frequency of 60Hz 0.5Hz covering a
normal fluctuation of the power frequency. The camera may not compensate for
large fluctuation caused by power generated by an engine generator. etc.
2. It takes about 10 seconds or more to obtain a stable synchronization after the
power is turned on. This is necessary to stabilize the camera against the power
noise.
BLC (Back Light Control) switch
In case the back lighting is too bright to shoot the main object clearly, set this switch to ON
position.