Back Focus Adjustment - Philips LTC0450/51 User Manual

V-phase adjustment (only functional when the camera is AC-powered)
When more cameras are connected to different AC power groups and share the same
monitor, video recorder, etc., AC phase differences may occur. If so, the video picture will
be unsynchronized for a short period (rolling picture) each time you switch the monitor
to another camera.
By means of the V-phase adjustment (range: 0 to 300°), you can synchronize the cameras.
CVBS output
Video signal output (75 Ohm impedance)
IRIS switch
- Set this switch to 'DC' when using a DC iris lens
- Set this switch to 'VIDEO' when using a Video iris lens
- Set the AES switch
Y/C output (only for high resolution camera)
By using this separate luminance (Y) and chrominance (C) output, you can
improve the display performance.
1 2
3 4
Back-focus adjustment
- Make sure that the iris is fully open.
- Adjust the focus ring of the lens (if applicable) to the object distance.
- Unlock the back-focus mechanism by releasing screw
- Adjust the back-focus distance by rotating screw
- Lock the back-focus mechanism, using screw
to 'OFF' when a DC or Video iris lens is used.
.
Pin configuration of S-video
(mini DIN) connector:
1: GND (Y)
2: GND (C)
3: luminance (Y)
4: chrominance (C)
approx. fi turn.
until the image is sharp.