You are checking out the collimator tilt switch as you perform PMCS on the
over-table collimator. You position the tilt switch at 0 degrees horizontal and place
the collimator at a 0 degrees beam-down position. Then you slowly move the
collimator +20 degrees toward a beam-left position and back -20 degrees toward a
beam-right position. Which of the following indicates the correct condition?
a. LED-1 is on at 90 degrees and remains on for 11 degrees below horizontal.
b. LED-5 is on at 0 degrees and stays on for 11 degrees above horizontal.
LED-4 is on at 0 degrees and stays on for +11 degrees and -11 degrees
d. LED-7 is ON at maximum upright and remains on until the table is angled
down to +79 degrees.
You are performing PMCS on the image intensifier. What do you use to obtain the
optimum focus from the image tube?
a. A Phillips-head screwdriver.
b. Potentiometers P5 and P8.
An adjustment of voltages V4 and V5.
d. Potentiometer P2.
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