4•• Operation XX103 Rev 402 VM5094/VM5124 High-Resolution Monitors
Operation
Warning: This product includes critical mechanical and electrical parts that are essential to prevent leakage
of x-ray radiation from the unit. For continued safety and protection, replacement of critical
components should only be performed by qualified service personnel experienced and equipped for
the task.
Refer to Figure 2 and accompanying table for the location and function of the of the operating controls and
indicators.
Note: Be sure that the termination switch is set to ON (75 ohms) or OFF (high impedance) as required and that
a standard 1.0 V p-p video signal is applied to the monitor’s video input.
To turn the monitor on, press the Power switch. The power LED illuminates. To adjust the brightness and
contrast controls, use those controls to obtain optimum picture quality. If picture quality is poor, check the
camera or other video source for proper adjustment.
POWER ON/OFF Switch –Provides power on-off control.
LED Power Indicator –Illuminates to indicate when power is on.
HORIZONTAL HOLD Control –Permits adjustment of horizontal stability. In the event the picture
“tears” leftward or rightward, turn the control clockwise or counterclockwise until picture stabilizes.
VERTICAL HOLD Control –Permits adjustment of vertical stability. In the event the picture “rolls”
upward or downward, turn the control clockwise or counterclockwise until picture stabilizes.
BRIGHTNESS Control –Permits adjustment of the overall shading and picture brightness; used to
compensate for differences in room lighting.
CONTRAST Control –Permits the adjustment of the relationship between the light and dark
portions of the picture; when properly adjusted, it is possible to observe a fine gradation between
blacks, grays and whites.
VIDEO INPUT Terminal –BNC connector accepts the video signal from a related vide component
(i.e. camera or VCR).
VIDEO OUTPUT Terminal –BNC connector provides loop-through of the input signal to the input
signal of related video equipment (i.e. VCR or another monitor).
75 OHM Termination Switch –Provides convenient selection of High Impedance or 75 ohm video
input impedance. The switch should be set to OFF for loop-through configuration and to ON when
video signal is terminated at the monitor.
AC Power Cord –Provides input power to unit when plugged into an outlet of appropriate voltage.
