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Pelco Manual C1910M (3/98) 9
4.0 OPERATION
The center detent position on all front panel controls is the normal setting; a subcontrol
is provided for presetting each control. The subcontrol adjustments should be ad-
justed by a qualified service technician only.
There are no external vertical or horizontal hold controls. The monitor contains
circuitry to lock the synchronization internally.
To operate the monitor:
Refer to Figure 2 for the location of the front panel controls.
1. Turn on the POWER switch; LED indicator will light. Allow the monitor to warm
up for about 30 seconds.
2. Adjust the PHASE control to the center detent position. If necessary, for best
tint adjustment, rotate the PHASE control to obtain the desired picture.
3. Adjust the CHROMA control to the center detent position. The monitor screen
should provide a color image. If the image requires more color saturation,
rotate the control clockwise. If colors appear too saturated, adjust the control
counterclockwise.
4. Adjust the BRIGHT and CONTRAST controls to the center detent position. If
dark scene areas require enhancement, the BRIGHT control can be rotated
clockwise. If the “black level,” which determines the darkest portion of the pic-
ture, appears too light, rotate the BRIGHT control counterclockwise.
NOTE:
Overdrive of the white por-
tions of the video, sufficient to cause
blooming, can significantly shorten
the service life of the CRT. Always
adjust the BRIGHT and CON-
TRAST controls to the center de-
tent position or towards a minimum
setting to enhance monitor life ex-
pectancy.
Figure 2. Front Panel Controls