Agc On/Off Switch; Int/Ll Switch (Ll Is On; Int Is Off); Fl On Switch (Flickerless On/Off); V-Phase Adjustment Potentiometer - American Dynamics ADC 660P Instruction Manual

Hi-Res. B/W camera instruction manual
_________________________________

7. AGC ON/OFF Switch

This switch is provided for the AGC circuit. The AGC circuit incorporated into the
camera boosts the sensitivity automatically when the scene illumination is
insufficient.

8. INT/LL Switch (LL is ON; INT is OFF)

This camera can operate independently, using its internal crystal-controlled sync
generator, or it may be synchronized using line-locking.
To select one or the other of these sync modes, set the DIP switch on the rear
panel to either INT or LL. Switch 4 is set to ON for LL and OFF for INT.
If line-lock is selected, all the cameras in the system must be adjusted to begin the
video field scan at the same time. This is described in procedure
9.

FL ON Switch (Flickerless ON/OFF)

This function is only used in JAPAN. In order to use FL mode, set EE/AI
switch to AI first and then FL ON/OFF switch to ON.
When the DIP switch on the rear panel is set to ON, the shutter speed is
fixed at a rate of 1/100(120)(sec).

10. V-Phase Adjustment Potentiometer

This potentiometer is set full counter clockwise at the factory. If two or
more cameras are connected to a switcher and the picture on the monitor rolls
while switching from camera A to B, adjusting the vertical phase (V-phase) of
the cameras will probably eliminate the rolling. If this adjustment is
necessary, it should only be performed by a qualified technician. Before
making any adjustment, confirm that cameras A and B are connected to the
power supply with the same polarity.
To make an adjustment, follow the steps below.
ADC 660N and ADC 660P
⑩
.
11