3-11. ALT/Telescopic Sight Unit (TSU) Slewing Procedure
The following ALT slewing procedure will determine that the ALT can command (slew) the TSU. If any faults occur
This procedure will require three persons. Two will remain in aircraft.
Another will stand
approximately 15 feet in front of aircraft holding laser simulator at eye level.
b. Set MODE switch (1) on control panel (fig. 3-6) to STBY.
c. Set CODE thumbwheel switches (6) on control panel to 111.
d. Set MODE switch (1) on control panel to SCAN 2.
Figure 3-6. ALT Control Panel.
e. Energize the TSU (refer to TM 55-1520-236-10 or TM 55-1520-239-23-1).