TM 5-6675-250-10
2-1. OPERATOR'S CONTROLS AND INDICATORS - Continued
(12) Reticle illumination control (12). The
reticle illumination control adjusts
the intensity of the lighting of the reti-
cle pattern during night operations.
The light intensity is adjusted in con-
junction with the reticle focus control
to obtain a clear, sharp image of the
reticle pattern.
(13) Microscope focus control (13). The
microscope focus control permits the
operator to adjust the focus of the
microscope to present a clear, sharp
image of the optical scales.
(14) Magnetic compass plunger (14). The
plunger on the magnetic compass
locks the compass needle in a fixed
position to protect it from vibration
and shock when not in use. Pressing
the plunger releases the locking
mechanism and permits the spring-
mounted needle to move freely. The
magnetic north direction is indicated
when the two points of the needle are
in coincidence.
Previous Page
