TM 5-6675-250-10
2-6. INITIAL ADJUSTMENTS AND ROUTINE CHECKS - Continued
f.
Place MODE SELECT switch (1) to SELF-
TEST (2); verify that PWR ON indicator (3)
is illuminated.
NOTE
When operating at night, the hand-lamp
assembly may be used to assist the operator.
With the hand-lamp assembly connected to
the HAND LAMP receptacle, place the HAND
LAMP switch to ON. Adjust the PANEL
ILLUM switch to get the desired lighting of
the panel. During day operations the PANEL
ILLUM switch is maintained in the DAY posi-
tion.
2-7. OPERATING PROCEDURE
NOTE
Prior to starting an azimuth determination,
the alignment of the horizontal circle shall be
checked and adjusted if necessary. Instruc-
tions for performing the alignment procedure
are provided in the following paragraph.
ALIGNMENT OF THEODOLITE HORIZONTAL CIRCLE TO REFERENCE MIRROR
a.
Place the MODE SELECT switch (1) to
THEO ILLUM (2).
b.
Adjust reticle focus (1) to obtain a sharp,
clear focus of the reticle seen through the
telescope eyepiece (2).
2-38
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