TB 9-4935-552-50-2
c. If TRD is less than 6.97 or greater than 7.05 VAC, record the percent correction and
apply to TRD VAC indications produced hereafter.
e. Rotate VIEW/DETECT control to DETECT position.
f. Carefully peak the indication of TRD using positioning table controls. Carefully
peak indication of TRD by adjusting lens barrel in and out. Lock the focus lens control.
g. Open access door of radiometer A2. Carefully peak TRD by slowly adjusting the
2KHz trimmer. Close the access door.
h. Adjust lamp driver 2A3A8R7 until radiometer A2 produces an indication between
2.18 and 2.22 VAC on the TRD.
i. If 2A3A8R7 can be adjusted within tolerance reading, proceed to step 13n.
If
2A3A8R7 cannot be adjusted within tolerance reading, proceed to step 13j.
WARNING
Do not touch lamp with bare hands.
Serious burn injuries
may, result.
CAUTION
If lamp is touched with bare hands, contamination of light
source will result.
Remove the lamp shield and cover. Slightly loosen screws holding lamp base.
j.
k. Slowly move lamp base until position that produces a maximum TRD is reached.
Lock down screws in lamp base, taking care to maintain maximum display.
l.
m. Adjust lamp driver 2A3A8R7 for a radiometer A2 reading of 2.20 .02 VAC. If a
satisfactory adjustment can be made, proceed to step n below. If adjustment cannot be
made, proceed to step o below. If adjustment cannot be made for the second time, return
the system to LCSS maintenance personnel.
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